oota-llvm.git
9 years ago[x86] Clean up a bunch of vector shuffle tests with my script. Notably,
Chandler Carruth [Wed, 12 Nov 2014 09:17:15 +0000 (09:17 +0000)]
[x86] Clean up a bunch of vector shuffle tests with my script. Notably,
removes windows line endings and other noise. This is in prelude to
making substantive changes to these tests.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221776 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoMCDisassembler::getInstruction():: Prune also "\param Region", since it was removed...
NAKAMURA Takumi [Wed, 12 Nov 2014 07:42:26 +0000 (07:42 +0000)]
MCDisassembler::getInstruction():: Prune also "\param Region", since it was removed in r221751. [-Wdocumentation]

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221775 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoAVX-512: Intrinsics for ERI
Elena Demikhovsky [Wed, 12 Nov 2014 07:31:03 +0000 (07:31 +0000)]
AVX-512: Intrinsics for ERI
3 instructions: vrcp28, vrsqrt28, vexp2, only vector forms.
Intrinsics include SAE (Suppres All Exceptions) parameter.

http://reviews.llvm.org/D6214

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221774 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoReverts r221772 which fails tests
Jingyue Wu [Wed, 12 Nov 2014 07:19:25 +0000 (07:19 +0000)]
Reverts r221772 which fails tests

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221773 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoDisable indvar widening if arithmetics on the wider type are more expensive
Jingyue Wu [Wed, 12 Nov 2014 06:58:45 +0000 (06:58 +0000)]
Disable indvar widening if arithmetics on the wider type are more expensive

Summary:
IndVarSimplify should not widen an indvar if arithmetics on the wider
indvar are more expensive than those on the narrower indvar. For
instance, although NVPTX64 treats i64 as a legal type, an ADD on i64 is
twice as expensive as that on i32, because the hardware needs to
simulate a 64-bit integer using two 32-bit integers.

Split from D6188, and based on D6195 which adds NVPTXTargetTransformInfo.

Fixes PR21148.

Test Plan:
Added @indvar_32_bit that verifies we do not widen an indvar if the arithmetics
on the wider type are more expensive.

Reviewers: jholewinski, eliben, meheff, atrick

Reviewed By: atrick

Subscribers: jholewinski, llvm-commits

Differential Revision: http://reviews.llvm.org/D6196

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221772 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoDelete dead code. NFC.
Rafael Espindola [Wed, 12 Nov 2014 04:31:19 +0000 (04:31 +0000)]
Delete dead code. NFC.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221770 91177308-0d34-0410-b5e6-96231b3b80d8

9 years ago[PowerPC] Add vec_vsx_ld and vec_vsx_st intrinsics
Bill Schmidt [Wed, 12 Nov 2014 04:19:40 +0000 (04:19 +0000)]
[PowerPC] Add vec_vsx_ld and vec_vsx_st intrinsics

This patch enables the vec_vsx_ld and vec_vsx_st intrinsics for
PowerPC, which provide programmer access to the lxvd2x, lxvw4x,
stxvd2x, and stxvw4x instructions.

New LLVM intrinsics are provided to represent these four instructions
in IntrinsicsPowerPC.td.  These are patterned after the similar
intrinsics for lvx and stvx (Altivec).  In PPCInstrVSX.td, these
intrinsics are tied to the code gen patterns, with additional patterns
to allow plain vanilla loads and stores to still generate these
instructions.

At -O1 and higher the intrinsics are immediately converted to loads
and stores in InstCombineCalls.cpp.  This will open up more
optimization opportunities while still allowing the correct
instructions to be generated.  (Similar code exists for aligned
Altivec loads and stores.)

The new intrinsics are added to the code that checks for consecutive
loads and stores in PPCISelLowering.cpp, as well as to
PPCTargetLowering::getTgtMemIntrinsic().

There's a new test to verify the correct instructions are generated.
The loads and stores tend to be reordered, so the test just counts
their number.  It runs at -O2, as it's not very effective to test this
at -O0, when many unnecessary loads and stores are generated.

I ended up having to modify vsx-fma-m.ll.  It turns out this test case
is slightly unreliable, but I don't know a good way to prevent
problems with it.  The xvmaddmdp instructions read and write the same
register, which is one of the multiplicands.  Commutativity allows
either to be chosen.  If the FMAs are reordered differently than
expected by the test, the register assignment can be different as a
result.  Hopefully this doesn't change often.

There is a companion patch for Clang.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221767 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoMerge StreamableMemoryObject into MemoryObject.
Rafael Espindola [Wed, 12 Nov 2014 03:55:46 +0000 (03:55 +0000)]
Merge StreamableMemoryObject into MemoryObject.

Every MemoryObject is a StreamableMemoryObject since the removal of
StringRefMemoryObject, so just merge the two.

I will clean up the MemoryObject interface in the upcoming commits.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221766 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoFix non-variadic function_ref cases to match r221753
David Blaikie [Wed, 12 Nov 2014 03:28:57 +0000 (03:28 +0000)]
Fix non-variadic function_ref cases to match r221753

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221763 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoDon't duplicate name in comments. NFC.
Rafael Espindola [Wed, 12 Nov 2014 03:25:45 +0000 (03:25 +0000)]
Don't duplicate name in comments. NFC.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221762 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoRevert "Use a function_ref now that it works (r221753)."
Rafael Espindola [Wed, 12 Nov 2014 03:17:33 +0000 (03:17 +0000)]
Revert "Use a function_ref now that it works (r221753)."

This reverts commit r221756.

David Blaikie pointed out it was unsafe.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221761 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoRemove unused method. NFC.
Rafael Espindola [Wed, 12 Nov 2014 02:35:31 +0000 (02:35 +0000)]
Remove unused method. NFC.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221759 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoMake readBytes pure virtual. Every real implementation has it.
Rafael Espindola [Wed, 12 Nov 2014 02:30:38 +0000 (02:30 +0000)]
Make readBytes pure virtual. Every real implementation has it.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221758 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoRemove unused method. NFC.
Rafael Espindola [Wed, 12 Nov 2014 02:27:40 +0000 (02:27 +0000)]
Remove unused method. NFC.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221757 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoUse a function_ref now that it works (r221753).
Rafael Espindola [Wed, 12 Nov 2014 02:23:37 +0000 (02:23 +0000)]
Use a function_ref now that it works (r221753).

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221756 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoRemove the now unused StringRefMemoryObject.h.
Rafael Espindola [Wed, 12 Nov 2014 02:13:27 +0000 (02:13 +0000)]
Remove the now unused StringRefMemoryObject.h.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221755 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoEnsure function_refs are copyable even from non-const references
David Blaikie [Wed, 12 Nov 2014 02:06:08 +0000 (02:06 +0000)]
Ensure function_refs are copyable even from non-const references

A subtle bug was found where attempting to copy a non-const function_ref
lvalue would actually invoke the generic forwarding constructor (as it
was a closer match - being T& rather than the const T& of the implicit
copy constructor). In the particular case this lead to a dangling
function_ref member (since it had referenced the function_ref passed by
value to its ctor, rather than the outer function_ref that was still
alive)

SFINAE the converting constructor to not be considered if the copy
constructor is available and demonstrate that this causes the copy to
refer to the original functor, not to the function_ref it was copied
from. (without the code change, the test would fail as Y would be
referencing X and Y() would see the result of the mutation to X, ie: 2)

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221753 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoPass an ArrayRef to MCDisassembler::getInstruction.
Rafael Espindola [Wed, 12 Nov 2014 02:04:27 +0000 (02:04 +0000)]
Pass an ArrayRef to MCDisassembler::getInstruction.

With this patch MCDisassembler::getInstruction takes an ArrayRef<uint8_t>
instead of a MemoryObject.

Even on X86 there is a maximum size an instruction can have. Given
that, it seems way simpler and more efficient to just pass an ArrayRef
to the disassembler instead of a MemoryObject and have it do a virtual
call every time it wants some extra bytes.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221751 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoObject, support both mach-o archive t.o.c file names
Nick Kledzik [Wed, 12 Nov 2014 01:37:45 +0000 (01:37 +0000)]
Object, support both mach-o archive t.o.c file names

For historical reasons archives on mach-o have two possible names for the
file containing the table of contents for the archive: "__.SYMDEF SORTED"
and "__.SYMDEF".  But the libObject archive reader only supported the former.

This patch fixes llvm::object::Archive to support both names.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221747 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoRemove a bit of dead code.
Rafael Espindola [Wed, 12 Nov 2014 01:27:22 +0000 (01:27 +0000)]
Remove a bit of dead code.

Every "real" object file implements this an ptx doesn't use it.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221746 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoExtend intrinsic name mangling to support arrays, named structs, and function types.
Philip Reames [Wed, 12 Nov 2014 00:21:51 +0000 (00:21 +0000)]
Extend intrinsic name mangling to support arrays, named structs, and function types.

Currently, we have a type parameter mechanism for intrinsics. Rather than having to specify a separate intrinsic for each combination of argument and return types, we can specify a single intrinsic with one or more type parameters. These type parameters are passed explicitly to Intrinsic::getDeclaration or can be specified implicitly in the naming of the intrinsic function in an LL file.

Today, the types are limited to integer, floating point, and pointer types. With a goal of supporting symbolic targets for patchpoints and statepoints, this change adds support for function types.  The change also includes support for first class aggregate types (named structures and arrays) since these appear in function types we've encountered.

Reviewed by: atrick, ributzka
Differential Revision: http://reviews.llvm.org/D4608

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221742 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoMake TreePattern::error use Twine
Matt Arsenault [Tue, 11 Nov 2014 23:48:11 +0000 (23:48 +0000)]
Make TreePattern::error use Twine

The underlying error function already uses a Twine,
and most of the uses build up strings.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221740 91177308-0d34-0410-b5e6-96231b3b80d8

9 years ago[Reassociate] Canonicalize negative constants out of expressions.
Chad Rosier [Tue, 11 Nov 2014 23:36:42 +0000 (23:36 +0000)]
[Reassociate] Canonicalize negative constants out of expressions.

Add support for FDiv, which was regressed by the previous commit.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221738 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoCanonicalize an assume(load != null) into !nonnull metadata
Philip Reames [Tue, 11 Nov 2014 23:33:19 +0000 (23:33 +0000)]
Canonicalize an assume(load != null) into !nonnull metadata

We currently have two ways of informing the optimizer that the result of a load is never null: metadata and assume. This change converts the second in to the former. This avoids a need to implement optimizations using both forms.

We should probably extend this basic idea to metadata of other forms; in particular, range metadata. We view is that assumes should be considered a "last resort" for when there isn't a more canonical way to represent something.

Reviewed by: Hal
Differential Revision: http://reviews.llvm.org/D5951

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221737 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agolibLTO: Allow linker to choose context of modules and codegen
Duncan P. N. Exon Smith [Tue, 11 Nov 2014 23:19:23 +0000 (23:19 +0000)]
libLTO: Allow linker to choose context of modules and codegen

Add API for specifying which `LLVMContext` each `lto_module_t` and
`lto_code_gen_t` is in.

In particular, this enables the following flow:

    for (auto &File : Files) {
      lto_module_t M = lto_module_create_in_local_context(File...);
      querySymbols(M);
      lto_module_dispose(M);
    }

    lto_code_gen_t CG = lto_codegen_create_in_local_context();
    for (auto &File : FilesToLink) {
      lto_module_t M = lto_module_create_in_codegen_context(File..., CG);
      lto_codegen_add_module(CG, M);
      lto_module_dispose(M);
    }
    lto_codegen_compile(CG);
    lto_codegen_write_merged_modules(CG, ...);
    lto_codegen_dispose(CG);

This flow has a few benefits.

  - Only one module (two if you count the combined module in the code
    generator) is in memory at a time.

  - Metadata (and constants) from files that are parsed to query symbols
    but not linked into the code generator don't pollute the global
    context.

  - The first for loop can be parallelized, since each module is in its
    own context.

  - When the code generator is disposed, the memory from LTO gets freed.

rdar://problem/18767512

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221733 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoInitialize new subtarget feature variable for generating reciprocal estimate instruct...
Sanjay Patel [Tue, 11 Nov 2014 23:13:15 +0000 (23:13 +0000)]
Initialize new subtarget feature variable for generating reciprocal estimate instructions.

This was missed in r221706.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221731 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agolibLTO: Assert if LTOCodeGenerator and LTOModule are from different contexts
Duncan P. N. Exon Smith [Tue, 11 Nov 2014 23:13:10 +0000 (23:13 +0000)]
libLTO: Assert if LTOCodeGenerator and LTOModule are from different contexts

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221730 91177308-0d34-0410-b5e6-96231b3b80d8

9 years ago[FastISel][AArch64] Add support for fabs intrinsic.
Juergen Ributzka [Tue, 11 Nov 2014 23:10:44 +0000 (23:10 +0000)]
[FastISel][AArch64] Add support for fabs intrinsic.

Lower the llvm.fabs intrinsic to the 'fabs' MI instruction.

This fixes rdar://problem/18946552.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221729 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agolibLTO: Allow LTOModule to own a context
Duncan P. N. Exon Smith [Tue, 11 Nov 2014 23:08:05 +0000 (23:08 +0000)]
libLTO: Allow LTOModule to own a context

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221728 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agolibLTO: Allow LTOCodeGenerator to own a context
Duncan P. N. Exon Smith [Tue, 11 Nov 2014 23:03:29 +0000 (23:03 +0000)]
libLTO: Allow LTOCodeGenerator to own a context

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221726 91177308-0d34-0410-b5e6-96231b3b80d8

9 years ago[asan] adding ShadowOffset64 for mips64, patch by Kumar Sukhani
Kostya Serebryany [Tue, 11 Nov 2014 23:02:57 +0000 (23:02 +0000)]
[asan] adding ShadowOffset64 for mips64, patch by Kumar Sukhani

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221725 91177308-0d34-0410-b5e6-96231b3b80d8

9 years ago[Reassociate] Canonicalize negative constants out of expressions.
Chad Rosier [Tue, 11 Nov 2014 22:58:35 +0000 (22:58 +0000)]
[Reassociate] Canonicalize negative constants out of expressions.

This is a reapplication of r221171, but we only perform the transformation
on expressions which include a multiplication.  We do not transform rem/div
operations as this doesn't appear to be safe in all cases.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221721 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoMove asan-coverage into a separate phase.
Kostya Serebryany [Tue, 11 Nov 2014 22:14:37 +0000 (22:14 +0000)]
Move asan-coverage into a separate phase.

Summary:
This change moves asan-coverage instrumentation
into a separate Module pass.
The other part of the change in clang introduces a new flag
-fsanitize-coverage=N.
Another small patch will update tests in compiler-rt.

With this patch no functionality change is expected except for the flag name.
The following changes will make the coverage instrumentation work with tsan/msan

Test Plan: Run regression tests, chromium.

Reviewers: nlewycky, samsonov

Reviewed By: nlewycky, samsonov

Subscribers: llvm-commits

Differential Revision: http://reviews.llvm.org/D6152

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221718 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoRevert "IR: MDNode => Value"
Duncan P. N. Exon Smith [Tue, 11 Nov 2014 21:30:22 +0000 (21:30 +0000)]
Revert "IR: MDNode => Value"

Instead, we're going to separate metadata from the Value hierarchy.  See
PR21532.

This reverts commit r221375.
This reverts commit r221373.
This reverts commit r221359.
This reverts commit r221167.
This reverts commit r221027.
This reverts commit r221024.
This reverts commit r221023.
This reverts commit r220995.
This reverts commit r220994.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221711 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoFix build break: remove unused variable in FCFI.
Tom Roeder [Tue, 11 Nov 2014 21:26:33 +0000 (21:26 +0000)]
Fix build break: remove unused variable in FCFI.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221710 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoTotally forget deallocated SDNodes in SDDbgInfo.
Frederic Riss [Tue, 11 Nov 2014 21:21:08 +0000 (21:21 +0000)]
Totally forget deallocated SDNodes in SDDbgInfo.

What would happen before that commit is that the SDDbgValues associated with
a deallocated SDNode would be marked Invalidated, but SDDbgInfo would keep
a map entry keyed by the SDNode pointer pointing to this list of invalidated
SDDbgNodes. As the memory gets reused, the list might get wrongly associated
with another new SDNode. As the SDDbgValues are cloned when they are transfered,
this can lead to an exponential number of SDDbgValues being produced during
DAGCombine like in http://llvm.org/bugs/show_bug.cgi?id=20893

Note that the previous behavior wasn't really buggy as the invalidation made
sure that the SDDbgValues won't be used. This commit can be considered a
memory optimization and as such is really hard to validate in a unit-test.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221709 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoAdd Forward Control-Flow Integrity.
Tom Roeder [Tue, 11 Nov 2014 21:08:02 +0000 (21:08 +0000)]
Add Forward Control-Flow Integrity.

This commit adds a new pass that can inject checks before indirect calls to
make sure that these calls target known locations. It supports three types of
checks and, at compile time, it can take the name of a custom function to call
when an indirect call check fails. The default failure function ignores the
error and continues.

This pass incidentally moves the function JumpInstrTables::transformType from
private to public and makes it static (with a new argument that specifies the
table type to use); this is so that the CFI code can transform function types
at call sites to determine which jump-instruction table to use for the check at
that site.

Also, this removes support for jumptables in ARM, pending further performance
analysis and discussion.

Review: http://reviews.llvm.org/D4167

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221708 91177308-0d34-0410-b5e6-96231b3b80d8

9 years ago[llvm-mc] Fixing case where if a file ended with non-newline whitespace or a comma...
Colin LeMahieu [Tue, 11 Nov 2014 21:03:09 +0000 (21:03 +0000)]
[llvm-mc] Fixing case where if a file ended with non-newline whitespace or a comma it would access invalid memory.
Cleaned up parse loop.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221707 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoUse rcpss/rcpps (X86) to speed up reciprocal calcs (PR21385).
Sanjay Patel [Tue, 11 Nov 2014 20:51:00 +0000 (20:51 +0000)]
Use rcpss/rcpps (X86) to speed up reciprocal calcs (PR21385).

This is a first step for generating SSE rcp instructions for reciprocal
calcs when fast-math allows it. This is very similar to the rsqrt optimization
enabled in D5658 ( http://reviews.llvm.org/rL220570 ).

For now, be conservative and only enable this for AMD btver2 where performance
improves significantly both in terms of latency and throughput.

We may never enable this codegen for Intel Core* chips because the divider circuits
are just too fast. On SandyBridge, divss can be as fast as 10 cycles versus the 21
cycle critical path for the rcp + mul + sub + mul + add estimate.

Follow-on patches may allow configuration of the number of Newton-Raphson refinement
steps, add AVX512 support, and enable the optimization for more chips.

More background here: http://llvm.org/bugs/show_bug.cgi?id=21385

Differential Revision: http://reviews.llvm.org/D6175

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221706 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoSimplify testcase. NFC.
Rafael Espindola [Tue, 11 Nov 2014 20:49:16 +0000 (20:49 +0000)]
Simplify testcase. NFC.

Thanks to Filipe Cabecinhas for the tip.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221705 91177308-0d34-0410-b5e6-96231b3b80d8

9 years ago[PowerPC] Replace foul hackery with real calls to __tls_get_addr
Bill Schmidt [Tue, 11 Nov 2014 20:44:09 +0000 (20:44 +0000)]
[PowerPC] Replace foul hackery with real calls to __tls_get_addr

My original support for the general dynamic and local dynamic TLS
models contained some fairly obtuse hacks to generate calls to
__tls_get_addr when lowering a TargetGlobalAddress.  Rather than
generating real calls, special GET_TLS_ADDR nodes were used to wrap
the calls and only reveal them at assembly time.  I attempted to
provide correct parameter and return values by chaining CopyToReg and
CopyFromReg nodes onto the GET_TLS_ADDR nodes, but this was also not
fully correct.  Problems were seen with two back-to-back stores to TLS
variables, where the call sequences ended up overlapping with unhappy
results.  Additionally, since these weren't real calls, the proper
register side effects of a call were not recorded, so clobbered values
were kept live across the calls.

The proper thing to do is to lower these into calls in the first
place.  This is relatively straightforward; see the changes to
PPCTargetLowering::LowerGlobalTLSAddress() in PPCISelLowering.cpp.
The changes here are standard call lowering, except that we need to
track the fact that these calls will require a relocation.  This is
done by adding a machine operand flag of MO_TLSLD or MO_TLSGD to the
TargetGlobalAddress operand that appears earlier in the sequence.

The calls to LowerCallTo() eventually find their way to
LowerCall_64SVR4() or LowerCall_32SVR4(), which call FinishCall(),
which calls PrepareCall().  In PrepareCall(), we detect the calls to
__tls_get_addr and immediately snag the TargetGlobalTLSAddress with
the annotated relocation information.  This becomes an extra operand
on the call following the callee, which is expected for nodes of type
tlscall.  We change the call opcode to CALL_TLS for this case.  Back
in FinishCall(), we change it again to CALL_NOP_TLS for 64-bit only,
since we require a TOC-restore nop following the call for the 64-bit
ABIs.

During selection, patterns in PPCInstrInfo.td and PPCInstr64Bit.td
convert the CALL_TLS nodes into BL_TLS nodes, and convert the
CALL_NOP_TLS nodes into BL8_NOP_TLS nodes.  This replaces the code
removed from PPCAsmPrinter.cpp, as the BL_TLS or BL8_NOP_TLS
nodes can now be emitted normally using their patterns and the
associated printTLSCall print method.

Finally, as a result of these changes, all references to get-tls-addr
in its various guises are no longer used, so they have been removed.

There are existing TLS tests to verify the changes haven't messed
anything up).  I've added one new test that verifies that the problem
with the original code has been fixed.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221703 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoUse a 8 bit immediate when possible.
Rafael Espindola [Tue, 11 Nov 2014 19:46:36 +0000 (19:46 +0000)]
Use a 8 bit immediate when possible.

This fixes pr21529.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221700 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoFix a warning about ‘r_type’ may be used uninitialized.
Kevin Enderby [Tue, 11 Nov 2014 19:16:45 +0000 (19:16 +0000)]
Fix a warning about â€˜r_type’ may be used uninitialized.

Thanks to Aaron Ballman for noticing this!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221696 91177308-0d34-0410-b5e6-96231b3b80d8

9 years ago[X86][ELF] Fix PR20243 - leaf frame pointer bug with TLS access
Dario Domizioli [Tue, 11 Nov 2014 18:44:49 +0000 (18:44 +0000)]
[X86][ELF] Fix PR20243 - leaf frame pointer bug with TLS access

The ISel lowering for global TLS access in PIC mode was creating a pseudo
instruction that is later expanded to a call, but the code was not
setting the hasCalls flag in the MachineFrameInfo alongside the adjustsStack
flag. This caused some functions to be mistakenly recognized as leaf functions,
and this in turn affected the decision to eliminate the frame pointer.

With the fix, hasCalls is properly set and the leaf frame pointer is correctly
preserved.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221695 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoLLVM incorrectly folds xor into select
Oliver Stannard [Tue, 11 Nov 2014 17:36:01 +0000 (17:36 +0000)]
LLVM incorrectly folds xor into select

LLVM replaces the SelectionDAG pattern (xor (set_cc cc x y) 1) with
(set_cc !cc x y), which is only correct when the xor has type i1.
Instead, we should check that the constant operand to the xor is all
ones.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221693 91177308-0d34-0410-b5e6-96231b3b80d8

9 years ago[mips] Add preliminary support for the MIPS II target.
Vasileios Kalintiris [Tue, 11 Nov 2014 11:43:55 +0000 (11:43 +0000)]
[mips] Add preliminary support for the MIPS II target.

Summary:
This patch enables code generation for the MIPS II target. Pre-Mips32
targets don't have the MUL instruction, so we add the correspondent
pattern that uses the MULT/MFLO combination in order to retrieve the
product.

This is WIP as we don't support code generation for select nodes due to
the lack of conditional-move instructions.

Reviewers: dsanders

Subscribers: llvm-commits

Differential Revision: http://reviews.llvm.org/D6150

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221686 91177308-0d34-0410-b5e6-96231b3b80d8

9 years ago[mips] Add hardware register name "hwr_ulr" ($29)
Vasileios Kalintiris [Tue, 11 Nov 2014 11:22:39 +0000 (11:22 +0000)]
[mips] Add hardware register name "hwr_ulr" ($29)

The canonical name when printing assembly is still $29. The reason is that
GAS does not accept "$hwr_ulr" at the moment.

This addresses the comments from r221307, which reverted the original
commit r221299.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221685 91177308-0d34-0410-b5e6-96231b3b80d8

9 years ago[X86] Add missing check for 'isINSERTPSMask' in method 'isShuffleMaskLegal'.
Andrea Di Biagio [Tue, 11 Nov 2014 11:20:31 +0000 (11:20 +0000)]
[X86] Add missing check for 'isINSERTPSMask' in method 'isShuffleMaskLegal'.

This helps the DAGCombiner to identify more opportunities to fold shuffles.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221684 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoRecommit "[mips] Add names and tests for the hardware registers"
Vasileios Kalintiris [Tue, 11 Nov 2014 10:31:31 +0000 (10:31 +0000)]
Recommit "[mips] Add names and tests for the hardware registers"

The original commit r221299 was reverted in r221307.  I removed the name
"hrw_ulr" ($29) from the original commit because two tests were failing.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221681 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agollvm-objdump: Skip empty sections when dumping contents
David Majnemer [Tue, 11 Nov 2014 09:58:25 +0000 (09:58 +0000)]
llvm-objdump: Skip empty sections when dumping contents

Empty sections are just noise when using objdump.
This is similar to what binutils does.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221680 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoWas convinced in commit comments that requiring a specific python version is the...
Manuel Klimek [Tue, 11 Nov 2014 08:53:18 +0000 (08:53 +0000)]
Was convinced in commit comments that requiring a specific python version is the wrong approach; reverting.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221679 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoMC, COFF: Use relocations for function references inside the section
David Majnemer [Tue, 11 Nov 2014 08:43:57 +0000 (08:43 +0000)]
MC, COFF: Use relocations for function references inside the section

Referencing one symbol from another in the same section does not
generally require a relocation.  However, the MS linker has a feature
called /INCREMENTAL which enables incremental links.  It achieves this
by creating thunks to the actual function and redirecting all
relocations to point to the thunk.

This breaks down with the old scheme if you have a function which
references, say, itself.  On x86_64, we would use %rip relative
addressing to reference the start of the function from out current
position.  This would lead to miscompiles because other references might
reference the thunk instead, breaking function pointer equality.

This fixes PR21520.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221678 91177308-0d34-0410-b5e6-96231b3b80d8

9 years ago[CMake] llvm-shlib: Prune redundant components, AsmPrinter, MC, and SelectionDAG.
NAKAMURA Takumi [Tue, 11 Nov 2014 07:57:25 +0000 (07:57 +0000)]
[CMake] llvm-shlib: Prune redundant components, AsmPrinter, MC, and SelectionDAG.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221675 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoAddition to r216371 (SLP and Loop Vectorization) and r218607 where
Suyog Sarda [Tue, 11 Nov 2014 07:39:27 +0000 (07:39 +0000)]
Addition to r216371 (SLP and Loop Vectorization) and r218607 where
cost model for signed division by power of 2 was improved for AArch64.
The revision r218607 missed test case for Loop Vectorization.
Adding it in this revision.

Differential Revision: http://reviews.llvm.org/D6181

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221674 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoUse uint64_t as the type for the X86 TSFlag format enum. Allows removal of the VEXShi...
Craig Topper [Tue, 11 Nov 2014 07:32:32 +0000 (07:32 +0000)]
Use uint64_t as the type for the X86 TSFlag format enum. Allows removal of the VEXShift hack that was used to access the higher bits of TSFlags.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221673 91177308-0d34-0410-b5e6-96231b3b80d8

9 years ago[X86] Fix pattern match for 32-to-64-bit zext in the presence of AssertSext
Michael Kuperstein [Tue, 11 Nov 2014 07:07:40 +0000 (07:07 +0000)]
[X86] Fix pattern match for 32-to-64-bit zext in the presence of AssertSext

This fixes an issue with matching trunc -> assertsext -> zext on x86-64, which would not zero the high 32-bits. See PR20494 for details.
Recommitting - This time, with a hopefully working test.

Differential Revision: http://reviews.llvm.org/D6128

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221672 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoOnly run the gold plugin tests if gold supports the targets we test with.
Rafael Espindola [Tue, 11 Nov 2014 05:27:12 +0000 (05:27 +0000)]
Only run the gold plugin tests if gold supports the targets we test with.

This fixes pr21345.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221669 91177308-0d34-0410-b5e6-96231b3b80d8

9 years ago[NVPTX] Remove dead code in NVPTXTargetTransformInfo (NFC)
Jingyue Wu [Tue, 11 Nov 2014 05:24:04 +0000 (05:24 +0000)]
[NVPTX] Remove dead code in NVPTXTargetTransformInfo (NFC)

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221668 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoMCAsmParserExtension has a copy of the MCAsmParser. Use it.
Rafael Espindola [Tue, 11 Nov 2014 05:18:41 +0000 (05:18 +0000)]
MCAsmParserExtension has a copy of the MCAsmParser. Use it.

Base classes were storing a second copy.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221667 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoAdd const. NFC.
Rafael Espindola [Tue, 11 Nov 2014 05:11:47 +0000 (05:11 +0000)]
Add const. NFC.

This adds const to a few methods that already return const references or
creates a const version when they reterun non-const references.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221666 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoDon't duplicate names in comments. NFC.
Rafael Espindola [Tue, 11 Nov 2014 04:58:32 +0000 (04:58 +0000)]
Don't duplicate names in comments. NFC.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221665 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoDon't repeat name in comment. NFC.
Rafael Espindola [Tue, 11 Nov 2014 04:49:14 +0000 (04:49 +0000)]
Don't repeat name in comment. NFC.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221664 91177308-0d34-0410-b5e6-96231b3b80d8

9 years ago[X86] Custom lower UINT_TO_FP from v4f32 to v4i32, and for v8f32 to v8i32 if
Quentin Colombet [Tue, 11 Nov 2014 02:23:47 +0000 (02:23 +0000)]
[X86] Custom lower UINT_TO_FP from v4f32 to v4i32, and for v8f32 to v8i32 if
AVX2 is available.
According to IACA, the new lowering has a throughput of 8 cycles instead of 13
with the previous one.

Althought this lowering kicks in some SPECs benchmarks, the performance
improvement was within the noise.

Correctness testing has been done for the whole range of uint32_t with the
following program:
    uint4 v = (uint4) {0,1,2,3};
    uint32_t i;

    //Check correctness over entire range for uint4 -> float4 conversion
    for( i = 0; i < 1U << (32-2); i++ )
    {
        float4 t = test(v);
        float4 c = correct(v);

        if( 0xf != _mm_movemask_ps( t == c ))
        {
            printf( "Error @ %vx: %vf vs. %vf\n", v, c, t);
            return -1;
        }

        v += 4;
    }
Where "correct" is the old lowering and "test" the new one.

The patch adds a test case for the two custom lowering instruction.
It also modifies the vector cost model, which is why cast.ll and uitofp.ll are
modified.
2009-02-26-MachineLICMBug.ll is also modified because we now hoist 7
instructions instead of 4 (3 more constant loads).

rdar://problem/18153096>

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221657 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agospeling.
Nico Weber [Tue, 11 Nov 2014 01:13:42 +0000 (01:13 +0000)]
speling.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221652 91177308-0d34-0410-b5e6-96231b3b80d8

9 years ago[yaml2obj] Support AArch64 relocations.
Chad Rosier [Mon, 10 Nov 2014 23:02:03 +0000 (23:02 +0000)]
[yaml2obj] Support AArch64 relocations.

Patch by Daniel Stewart <stewartd@codeaurora.org>!
Phabricator Revision: http://reviews.llvm.org/D6192

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221639 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoconfigure.ac lives in autoconf/, not autotools/
Rafael Espindola [Mon, 10 Nov 2014 22:36:04 +0000 (22:36 +0000)]
configure.ac lives in autoconf/, not autotools/

Patch by Palmer Dabbelt!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221638 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoReverting r221626 due to a too-strict test.
Michael Kuperstein [Mon, 10 Nov 2014 21:07:41 +0000 (21:07 +0000)]
Reverting r221626 due to a too-strict test.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221629 91177308-0d34-0410-b5e6-96231b3b80d8

9 years ago[AArch64][FastISel] Fix kill flags for integer extends.
Juergen Ributzka [Mon, 10 Nov 2014 21:05:31 +0000 (21:05 +0000)]
[AArch64][FastISel] Fix kill flags for integer extends.

In the case we optimize an integer extend away and replace it directly with the
source register, we also have to clear all kill flags at all its uses.
This is necessary, because the orignal IR instruction might be trivially dead,
but we replaced it with a nop at MI level.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221628 91177308-0d34-0410-b5e6-96231b3b80d8

9 years ago[SwitchLowering] Fix the "fixPhis" function.
Juergen Ributzka [Mon, 10 Nov 2014 21:05:27 +0000 (21:05 +0000)]
[SwitchLowering] Fix the "fixPhis" function.

Switch statements may have more than one incoming edge into the same BB if they
all have the same value. When the switch statement is converted these incoming
edges are now coming from multiple BBs. Updating all incoming values to be from
a single BB is incorrect and would generate invalid LLVM IR.

The fix is to only update the first occurrence of an incoming value. Switch
lowering will perform subsequent calls to this helper function for each incoming
edge with a new basic block - updating all edges in the process.

This fixes rdar://problem/18916275.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221627 91177308-0d34-0410-b5e6-96231b3b80d8

9 years ago[X86] Fix pattern match for 32-to-64-bit zext in the presence of AssertSext
Michael Kuperstein [Mon, 10 Nov 2014 20:40:21 +0000 (20:40 +0000)]
[X86] Fix pattern match for 32-to-64-bit zext in the presence of AssertSext

This fixes an issue with matching trunc -> assertsext -> zext on x86-64, which would not zero the high 32-bits.
See PR20494 for details.

Differential Revision: http://reviews.llvm.org/D6128

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221626 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoCopy externally_initialized in GlobalVariable::copyAttributesFrom.
Rafael Espindola [Mon, 10 Nov 2014 18:41:59 +0000 (18:41 +0000)]
Copy externally_initialized in GlobalVariable::copyAttributesFrom.

Patch by Kevin Frei!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221620 91177308-0d34-0410-b5e6-96231b3b80d8

9 years ago[NVPTX] Add an NVPTX-specific TargetTransformInfo
Jingyue Wu [Mon, 10 Nov 2014 18:38:25 +0000 (18:38 +0000)]
[NVPTX] Add an NVPTX-specific TargetTransformInfo

Summary:
It currently only implements hasBranchDivergence, and will be extended
in later diffs.

Split from D6188.

Test Plan: make check-all

Reviewers: jholewinski

Reviewed By: jholewinski

Subscribers: llvm-commits, meheff, eliben, jholewinski

Differential Revision: http://reviews.llvm.org/D6195

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221619 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoMisc style fixes. NFC.
Rafael Espindola [Mon, 10 Nov 2014 18:11:10 +0000 (18:11 +0000)]
Misc style fixes. NFC.

This fixes a few cases of:

* Wrong variable name style.
* Lines longer than 80 columns.
* Repeated names in comments.
* clang-format of the above.

This make the next patch a lot easier to read.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221615 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoFix extra semicolon warning. NFC.
Vasileios Kalintiris [Mon, 10 Nov 2014 17:37:53 +0000 (17:37 +0000)]
Fix extra semicolon warning. NFC.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221613 91177308-0d34-0410-b5e6-96231b3b80d8

9 years ago[mips][microMIPS] Fix issue with delay slot filler and microMIPS
Zoran Jovanovic [Mon, 10 Nov 2014 17:27:56 +0000 (17:27 +0000)]
[mips][microMIPS] Fix issue with delay slot filler and microMIPS
Differential Revision: http://reviews.llvm.org/D6193

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221612 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoFix variable names and comment style. NFC.
Rafael Espindola [Mon, 10 Nov 2014 16:31:06 +0000 (16:31 +0000)]
Fix variable names and comment style. NFC.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221608 91177308-0d34-0410-b5e6-96231b3b80d8

9 years ago[mips] Fix sret arguments for N32/N64 which were accidentally broken in r221534.
Daniel Sanders [Mon, 10 Nov 2014 15:57:53 +0000 (15:57 +0000)]
[mips] Fix sret arguments for N32/N64 which were accidentally broken in r221534.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221604 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoMark test using python as REQUIRES: python27.
Manuel Klimek [Mon, 10 Nov 2014 15:29:29 +0000 (15:29 +0000)]
Mark test using python as REQUIRES: python27.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221598 91177308-0d34-0410-b5e6-96231b3b80d8

9 years ago[CMake] llvm-c-test: Use libLLVM.so if it is available.
NAKAMURA Takumi [Mon, 10 Nov 2014 15:04:26 +0000 (15:04 +0000)]
[CMake] llvm-c-test: Use libLLVM.so if it is available.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221592 91177308-0d34-0410-b5e6-96231b3b80d8

9 years ago[CMake] Let llvm-shlib work on Linux with --whole-archive.
NAKAMURA Takumi [Mon, 10 Nov 2014 15:04:02 +0000 (15:04 +0000)]
[CMake] Let llvm-shlib work on Linux with --whole-archive.

FIXME: It should work on not only Linux but elf-targeting gnu ld.

For example if LLVM_DYLIB_COMPONENTS is "BitWriter Support", CMake emits the command line like;

  -Wl,--whole-archive
    lib/libLLVMBitWriter.a
    lib/libLLVMSupport.a *1
  -Wl,--no-whole-archive
  lib/libLLVMCore.a
  lib/libLLVMSupport.a   *2
  -lrt -ldl -ltinfo -lpthread -lm

It works since symbols in LLVMCore is resolved with not *2 but *1.

Unfortunately, --gc-sections is not powerful in this case to prune unused "visibility(default)" entries.

I am still experimenting other way not to rely on --whole-archive.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221591 91177308-0d34-0410-b5e6-96231b3b80d8

9 years ago[CMake] Move llvm-shlib in prior to other tools.
NAKAMURA Takumi [Mon, 10 Nov 2014 15:03:02 +0000 (15:03 +0000)]
[CMake] Move llvm-shlib in prior to other tools.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221590 91177308-0d34-0410-b5e6-96231b3b80d8

9 years ago[CMake] llvm-shlib: Add possibly missing BitReader and MCDisassembler for llvm-c.
NAKAMURA Takumi [Sat, 8 Nov 2014 14:12:30 +0000 (14:12 +0000)]
[CMake] llvm-shlib: Add possibly missing BitReader and MCDisassembler for llvm-c.

FYI, 3 modules below are redundant in trunk;

  AsmPrinter
  MC
  SelectionDAG

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221579 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoR600/SI: Fix broken check prefixes in test
Matt Arsenault [Sat, 8 Nov 2014 00:02:57 +0000 (00:02 +0000)]
R600/SI: Fix broken check prefixes in test

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221565 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoTransforms: address some late comments
Saleem Abdulrasool [Sat, 8 Nov 2014 00:00:50 +0000 (00:00 +0000)]
Transforms: address some late comments

We already use the llvm namespace.  Remove the unnecessary prefix.  Use the
StringRef::equals method to compare with C strings rather than instantiating
std::strings.

Addresses late review comments from David Majnemer.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221564 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoTransforms: sort source files in build
Saleem Abdulrasool [Sat, 8 Nov 2014 00:00:47 +0000 (00:00 +0000)]
Transforms: sort source files in build

Sort target sources.  NFC.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221563 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoSelectionDAG: Assert if we truncate SDNode's NumOperands or NumValues
David Majnemer [Fri, 7 Nov 2014 22:39:11 +0000 (22:39 +0000)]
SelectionDAG: Assert if we truncate SDNode's NumOperands or NumValues

No functionality change intended, this just stops us early if we created
a bad SDNode.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221560 91177308-0d34-0410-b5e6-96231b3b80d8

9 years ago[Reassociate] Better preserve NSW/NUW flags.
Chad Rosier [Fri, 7 Nov 2014 22:12:57 +0000 (22:12 +0000)]
[Reassociate] Better preserve NSW/NUW flags.
Part of PR12985.

Phabricator Revision: http://reviews.llvm.org/D6172

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221555 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoTransforms: use typedef rather than using aliases
Saleem Abdulrasool [Fri, 7 Nov 2014 22:09:52 +0000 (22:09 +0000)]
Transforms: use typedef rather than using aliases

Visual Studio 2012 apparently does not support using alias declarations.  Use
the more traditional typedef approach.  This should let the Windows buildbots
pass.  NFC.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221554 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoRemove unused variable.
Rafael Espindola [Fri, 7 Nov 2014 21:33:09 +0000 (21:33 +0000)]
Remove unused variable.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221549 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoTransform: add SymbolRewriter pass
Saleem Abdulrasool [Fri, 7 Nov 2014 21:32:08 +0000 (21:32 +0000)]
Transform: add SymbolRewriter pass

This introduces the symbol rewriter. This is an IR->IR transformation that is
implemented as a CodeGenPrepare pass. This allows for the transparent
adjustment of the symbols during compilation.

It provides a clean, simple, elegant solution for symbol inter-positioning. This
technique is often used, such as in the various sanitizers and performance
analysis.

The control of this is via a custom YAML syntax map file that indicates source
to destination mapping, so as to avoid having the compiler to know the exact
details of the source to destination transformations.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221548 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoFix style.
Michael J. Spencer [Fri, 7 Nov 2014 21:30:36 +0000 (21:30 +0000)]
Fix style.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221547 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoR600: Remove unused define
Matt Arsenault [Fri, 7 Nov 2014 20:45:00 +0000 (20:45 +0000)]
R600: Remove unused define

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221543 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoDon't redeclare a pure virtual method.
Rafael Espindola [Fri, 7 Nov 2014 18:07:04 +0000 (18:07 +0000)]
Don't redeclare a pure virtual method.

I.E., there is no value is having

void foo() override = 0;

If it is override it is already present in a base class. Since it is pure,
some other class will have to implement it.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221537 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoUse StringRefMemoryObject in llvm-mc. NFC.
Rafael Espindola [Fri, 7 Nov 2014 17:59:05 +0000 (17:59 +0000)]
Use StringRefMemoryObject in llvm-mc. NFC.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221536 91177308-0d34-0410-b5e6-96231b3b80d8

9 years ago[mips] Promote i32 arguments to i64 for the N32/N64 ABI and fix <64-bit structs...
Daniel Sanders [Fri, 7 Nov 2014 16:54:21 +0000 (16:54 +0000)]
[mips] Promote i32 arguments to i64 for the N32/N64 ABI and fix <64-bit structs...

Summary:
... and after all that refactoring, it's possible to distinguish softfloat
floating point values from integers so this patch no longer breaks softfloat to
do it.

Remove direct handling of i32's in the N32/N64 ABI by promoting them to
i64. This more closely reflects the ABI documentation and also fixes
problems with stack arguments on big-endian targets.

We now rely on signext/zeroext annotations (already generated by clang) and
the Assert[SZ]ext nodes to avoid the introduction of unnecessary sign/zero
extends.

It was not possible to convert three tests to use signext/zeroext. These tests
are bswap.ll, ctlz-v.ll, ctlz-v.ll. It's not possible to put signext on a
vector type so we just accept the sign extends here for now. These tests don't
pass the vectors the same way clang does (clang puts multiple elements in the
same argument, these map 1 element to 1 argument) so we don't need to worry too
much about it.

With this patch, all known N32/N64 bugs should be fixed and we now pass the
first 10,000 tests generated by ABITest.py.

Subscribers: llvm-commits

Differential Revision: http://reviews.llvm.org/D6117

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221534 91177308-0d34-0410-b5e6-96231b3b80d8

9 years ago[CMake] LLVMSupport: Give system_libs PRIVATE scope when LLVMSupport is built as...
NAKAMURA Takumi [Fri, 7 Nov 2014 16:08:19 +0000 (16:08 +0000)]
[CMake] LLVMSupport: Give system_libs PRIVATE scope when LLVMSupport is built as SHARED. Users of LLVMSupport won't inherit ${system_libs}.

unittests/SupporTests is another user of libpthreads. Apply LLVM_SYSTEM_LIBS for him explicitly.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221531 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoPass PRIVATE to target_link_libraries if using shared libraries.
Rafael Espindola [Fri, 7 Nov 2014 15:33:56 +0000 (15:33 +0000)]
Pass PRIVATE to target_link_libraries if using shared libraries.

A shared library (unlike a .a), has its dependencies recorded in the library and
we can pass PRIVATE to target_link_libraries.

This patch then removes some bogus dependencies when using
BUILD_SHARED_LIBS=ON. For example, we go from

build lib/CodeGen/CMakeFiles/LLVMCodeGen.dir/AggressiveAntiDepBreaker.cpp.o:
CXX_COMPILER /home/espindola/llvm/llvm/lib/CodeGen/AggressiveAntiDepBreaker.cpp
|| include/llvm/IR/intrinsics_gen lib/libLLVMSupport.so
lib/libLLVMCore.so lib/libLLVMBitReader.so
lib/libLLVMTransformUtils.so lib/libLLVMInstCombine.so
lib/libLLVMScalarOpts.so lib/libLLVMipa.so lib/libLLVMAnalysis.so
lib/libLLVMMCParser.so lib/libLLVMMC.so lib/libLLVMObject.so
lib/libLLVMTarget.so lib/libLLVMProfileData.so

to

build lib/CodeGen/CMakeFiles/LLVMCodeGen.dir/AggressiveAntiDepBreaker.cpp.o:
CXX_COMPILER /home/espindola/llvm/llvm/lib/CodeGen/AggressiveAntiDepBreaker.cpp
|| include/llvm/IR/intrinsics_gen lib/libLLVMSupport.so
lib/libLLVMCore.so lib/libLLVMTransformUtils.so
lib/libLLVMScalarOpts.so lib/libLLVMAnalysis.so lib/libLLVMMC.so
lib/libLLVMTarget.so

In fact, build.ninja goes from 5231028 bytes to 4896759 bytes.

With this, old verisons of bfd ld (2.24 is OK, 2.23 warns) will print a bogus
warning when building with BUILD_SHARED_LIBS.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221530 91177308-0d34-0410-b5e6-96231b3b80d8

9 years ago[mips] Removed the remainder of MipsCC. NFC.
Daniel Sanders [Fri, 7 Nov 2014 15:33:08 +0000 (15:33 +0000)]
[mips] Removed the remainder of MipsCC. NFC.

Summary:
One of the calls to AllocateStack (the one in LowerCall) doesn't look like
it should be there but it was there before and removing it breaks the
frame size calculation.

Reviewers: vmedic, theraven

Reviewed By: theraven

Subscribers: llvm-commits

Differential Revision: http://reviews.llvm.org/D6116

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221529 91177308-0d34-0410-b5e6-96231b3b80d8

9 years ago[mips] Remove MipsCC::reservedArgArea() in favour of MipsABIInfo::GetCalleeAllocdArgS...
Daniel Sanders [Fri, 7 Nov 2014 15:03:53 +0000 (15:03 +0000)]
[mips] Remove MipsCC::reservedArgArea() in favour of MipsABIInfo::GetCalleeAllocdArgSizeInBytes(). NFC.

Summary:

Reviewers: theraven, vmedic

Reviewed By: vmedic

Subscribers: llvm-commits

Differential Revision: http://reviews.llvm.org/D6115

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221528 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoMipsCCState.h: Use LLVM_DELETED_FUNCTION for msc17.
NAKAMURA Takumi [Fri, 7 Nov 2014 14:56:31 +0000 (14:56 +0000)]
MipsCCState.h: Use LLVM_DELETED_FUNCTION for msc17.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221527 91177308-0d34-0410-b5e6-96231b3b80d8