oota-llvm.git
10 years agoAArch64: implement relocations for global access
Tim Northover [Sat, 4 May 2013 20:14:04 +0000 (20:14 +0000)]
AArch64: implement relocations for global access

The large memory model (default and main viable for JIT) emits
addresses in need of relocation as
    movz x0, #:abs_g3:somewhere
    movk x0, #:abs_g2_nc:somewhere
    movk x0, #:abs_g1_nc:somewhere
    movk x0, #:abs_g0_nc:somewhere

To support this we must implement those four relocations in the
dynamic loader.

This allows (for example) the test-global.ll MCJIT test to pass on
AArch64.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@181132 91177308-0d34-0410-b5e6-96231b3b80d8

10 years agoAArch64: implement first relocation required for MCJIT
Tim Northover [Sat, 4 May 2013 20:13:59 +0000 (20:13 +0000)]
AArch64: implement first relocation required for MCJIT

R_AARCH64_PCREL32 is present in even trivial .eh_frame sections and so
is required to compile any function without the "nounwind" attribute.

This change implements very basic infrastructure in the RuntimeDyldELF
file and allows (for example) the test-shift.ll MCJIT test to pass
on AArch64.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@181131 91177308-0d34-0410-b5e6-96231b3b80d8

10 years agoBuild system changes to enable MCJIT on AArch64
Tim Northover [Sat, 4 May 2013 20:13:52 +0000 (20:13 +0000)]
Build system changes to enable MCJIT on AArch64

These changes just allow AArch64 to take part in the MCJIT world when
built correctly.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@181130 91177308-0d34-0410-b5e6-96231b3b80d8

10 years agoAArch64: use __clear_cache under GCCish environments
Tim Northover [Sat, 4 May 2013 18:52:44 +0000 (18:52 +0000)]
AArch64: use __clear_cache under GCCish environments

AArch64 is going to need some kind of cache-invalidation in order to
successfully JIT since it has a weak memory-model. This is provided by
a __clear_cache builtin in libgcc, which acts very much like the
32-bit ARM equivalent (on platforms where it exists).

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@181129 91177308-0d34-0410-b5e6-96231b3b80d8

10 years agoFix buildbot failure on 64 bit linux due to std::max() having different
Richard Osborne [Sat, 4 May 2013 17:41:01 +0000 (17:41 +0000)]
Fix buildbot failure on 64 bit linux due to std::max() having different
operand types.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@181128 91177308-0d34-0410-b5e6-96231b3b80d8

10 years ago[XCore] Remove unused operand type.
Richard Osborne [Sat, 4 May 2013 17:30:05 +0000 (17:30 +0000)]
[XCore] Remove unused operand type.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@181127 91177308-0d34-0410-b5e6-96231b3b80d8

10 years ago[XCore] Make use of the target independent global address offset folding.
Richard Osborne [Sat, 4 May 2013 17:24:33 +0000 (17:24 +0000)]
[XCore] Make use of the target independent global address offset folding.

This let us to remove some custom code that matched constant offsets
from globals at instruction selection time as a special addressing mode.
No intended functionality change.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@181126 91177308-0d34-0410-b5e6-96231b3b80d8

10 years ago[XCore] Simplify code that checks for an aligned base plus a constant.
Richard Osborne [Sat, 4 May 2013 17:17:10 +0000 (17:17 +0000)]
[XCore] Simplify code that checks for an aligned base plus a constant.

The code now makes use of ComputeMaskedBits,
SelectionDAG::isBaseWithConstantOffset and TargetLowering::isGAPlusOffset
where appropriate reducing the amount of logic needed in XCoreISelLowering.
No intended functionality change.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@181125 91177308-0d34-0410-b5e6-96231b3b80d8

10 years ago[XCore] Move lowering of thread local storage to a separate pass.
Richard Osborne [Sat, 4 May 2013 17:01:55 +0000 (17:01 +0000)]
[XCore] Move lowering of thread local storage to a separate pass.

Thread local storage is not supported by the XMOS linker so we handle
thread local variables by lowering the variable to an array of n elements
(where n is the number of hardware threads per core, currently 8
for all XMOS devices) indexed by the the current thread ID.

Previously this lowering was spread across the XCoreISelLowering and the
XCoreAsmPrinter classes. Moving this to a separate pass should be much
cleaner.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@181124 91177308-0d34-0410-b5e6-96231b3b80d8

10 years agoAArch64: assert code model is small for TLS accesses
Tim Northover [Sat, 4 May 2013 16:54:11 +0000 (16:54 +0000)]
AArch64: assert code model is small for TLS accesses

Supporting TLS in the large memory model is rather difficult at the
moment, so make sure no-one gets into difficulties by mistake.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@181121 91177308-0d34-0410-b5e6-96231b3b80d8

10 years agoAArch64: support literal pool access in large memory model.
Tim Northover [Sat, 4 May 2013 16:54:07 +0000 (16:54 +0000)]
AArch64: support literal pool access in large memory model.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@181120 91177308-0d34-0410-b5e6-96231b3b80d8

10 years agoAArch64: support large code model for jump-tables
Tim Northover [Sat, 4 May 2013 16:54:00 +0000 (16:54 +0000)]
AArch64: support large code model for jump-tables

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@181119 91177308-0d34-0410-b5e6-96231b3b80d8

10 years agoAArch64: implement support for blockaddress in large code model
Tim Northover [Sat, 4 May 2013 16:53:53 +0000 (16:53 +0000)]
AArch64: implement support for blockaddress in large code model

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@181118 91177308-0d34-0410-b5e6-96231b3b80d8

10 years agoAArch64: implement large code model access to global variables.
Tim Northover [Sat, 4 May 2013 16:53:46 +0000 (16:53 +0000)]
AArch64: implement large code model access to global variables.

The MOVZ/MOVK instruction sequence may not be the most efficient (a
literal-pool load could be better) but adding that would require
reinstating the ConstantIslands pass.

For now the sequence is correct, and that's enough. Beware, as of
commit GNU ld does not appear to support the relocations needed for
this. Its primary purpose (for now) will be to support JITed code,
since in that case there is no guarantee of where your code will end
up in memory relative to external symbols it references.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@181117 91177308-0d34-0410-b5e6-96231b3b80d8

10 years ago[XCore] Use static relocation model by default.
Richard Osborne [Sat, 4 May 2013 16:40:58 +0000 (16:40 +0000)]
[XCore] Use static relocation model by default.

This allows us to get get rid of a hack in XCoreTargetObjectFile where the
the DataRel* sections were overridden.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@181116 91177308-0d34-0410-b5e6-96231b3b80d8

10 years agoAllow host triple to be correctly overridden in CMake builds
Tim Northover [Sat, 4 May 2013 07:36:23 +0000 (07:36 +0000)]
Allow host triple to be correctly overridden in CMake builds

The intended semantics mirror autoconf, where the user is able to
specify a host triple, but if it's left to the build system then
"config.guess" is invoked for the default.

This also renames the LLVM_HOSTTRIPLE define to LLVM_HOST_TRIPLE to
fit in with the style of the surrounding defines.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@181112 91177308-0d34-0410-b5e6-96231b3b80d8

10 years agoOptimize llvm-link too.
Rafael Espindola [Sat, 4 May 2013 05:30:49 +0000 (05:30 +0000)]
Optimize llvm-link too.

This takes the linking of almost all modules in a clang build from 6:32
to 0:19.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@181105 91177308-0d34-0410-b5e6-96231b3b80d8

10 years agoFix a performance bug in the Linker.
Rafael Espindola [Sat, 4 May 2013 05:05:18 +0000 (05:05 +0000)]
Fix a performance bug in the Linker.

Now that we hava a convinient place to keep it, remeber the set of
identified structs as we merge modules.

This speeds up the linking of all the bitcode files in clang with the
gold plugin and -plugin-opt=emit-llvm (i.e., link only, no codegen) from
5:25 minutes to 13.6 seconds!

Patch by Xiaofei Wan!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@181104 91177308-0d34-0410-b5e6-96231b3b80d8

10 years agoImplement Linker::LinkModules with Linker::linkInModule.
Rafael Espindola [Sat, 4 May 2013 04:08:02 +0000 (04:08 +0000)]
Implement Linker::LinkModules with Linker::linkInModule.

Flipping which one is the implementation will let us optimize linkInModule.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@181102 91177308-0d34-0410-b5e6-96231b3b80d8

10 years agoNow that Linker.cpp is almost empty, merge it into LinkModules.cpp.
Rafael Espindola [Sat, 4 May 2013 03:48:37 +0000 (03:48 +0000)]
Now that Linker.cpp is almost empty, merge it into LinkModules.cpp.

Also remove unused includes.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@181100 91177308-0d34-0410-b5e6-96231b3b80d8

10 years agoLast batch of cleanups to Linker.h.
Rafael Espindola [Sat, 4 May 2013 03:06:50 +0000 (03:06 +0000)]
Last batch of cleanups to Linker.h.

Update comments, fix * placement, fix method names that are not
used in clang, add a linkInModule that takes a Mode and put it
in Linker.cpp.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@181099 91177308-0d34-0410-b5e6-96231b3b80d8

10 years agoDon't construct or delete a module on the Linker.
Rafael Espindola [Sat, 4 May 2013 02:43:00 +0000 (02:43 +0000)]
Don't construct or delete a module on the Linker.

The linker is now responsible only for actually linking the modules, it
is up to the clients to create and destroy them.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@181098 91177308-0d34-0410-b5e6-96231b3b80d8

10 years agoDon't store the context in the Linker.
Rafael Espindola [Sat, 4 May 2013 02:34:41 +0000 (02:34 +0000)]
Don't store the context in the Linker.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@181097 91177308-0d34-0410-b5e6-96231b3b80d8

10 years agoRemove unused members and constructor arguments.
Rafael Espindola [Sat, 4 May 2013 02:28:57 +0000 (02:28 +0000)]
Remove unused members and constructor arguments.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@181096 91177308-0d34-0410-b5e6-96231b3b80d8

10 years agoAdd missing header.
Rafael Espindola [Sat, 4 May 2013 02:21:46 +0000 (02:21 +0000)]
Add missing header.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@181095 91177308-0d34-0410-b5e6-96231b3b80d8

10 years agoDelete dead code from the linker.
Rafael Espindola [Sat, 4 May 2013 02:13:18 +0000 (02:13 +0000)]
Delete dead code from the linker.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@181094 91177308-0d34-0410-b5e6-96231b3b80d8

10 years agoUse consistent function names.
Krzysztof Parzyszek [Sat, 4 May 2013 01:30:49 +0000 (01:30 +0000)]
Use consistent function names.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@181090 91177308-0d34-0410-b5e6-96231b3b80d8

10 years agoTabs to spaces. No functionality change.
Nick Lewycky [Sat, 4 May 2013 01:08:15 +0000 (01:08 +0000)]
Tabs to spaces. No functionality change.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@181082 91177308-0d34-0410-b5e6-96231b3b80d8

10 years agoRevert r181009.
Amara Emerson [Fri, 3 May 2013 23:57:17 +0000 (23:57 +0000)]
Revert r181009.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@181079 91177308-0d34-0410-b5e6-96231b3b80d8

10 years agoRemove some uneeded pseudos in the presence of the naked function attribute.
Reed Kotler [Fri, 3 May 2013 23:17:24 +0000 (23:17 +0000)]
Remove some uneeded pseudos in the presence of the naked function attribute.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@181072 91177308-0d34-0410-b5e6-96231b3b80d8

10 years agoDelete test instead.
Amara Emerson [Fri, 3 May 2013 22:39:03 +0000 (22:39 +0000)]
Delete test instead.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@181066 91177308-0d34-0410-b5e6-96231b3b80d8

10 years agoTemporarily disable failing test.
Amara Emerson [Fri, 3 May 2013 22:27:48 +0000 (22:27 +0000)]
Temporarily disable failing test.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@181062 91177308-0d34-0410-b5e6-96231b3b80d8

10 years agoRemove this hack. We can support this better with function attributes.
Bill Wendling [Fri, 3 May 2013 21:53:50 +0000 (21:53 +0000)]
Remove this hack. We can support this better with function attributes.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@181059 91177308-0d34-0410-b5e6-96231b3b80d8

10 years ago[PowerPC] Avoid using '$' in generated assembler code
Ulrich Weigand [Fri, 3 May 2013 19:53:04 +0000 (19:53 +0000)]
[PowerPC] Avoid using '$' in generated assembler code

PowerPC assemblers are supposed to support a stand-alone '$' symbol
as an alternative of '.' to refer to the current PC.  This does not
work in the LLVM assembler parser yet.

To avoid bootstrap failures when using the LLVM assembler as system
assembler, this patch modifies the assembler source code generated
by LLVM to avoid using '$' (and simply use '.' instead).

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@181054 91177308-0d34-0410-b5e6-96231b3b80d8

10 years ago[PowerPC] Parse platform-specifc variant kinds in AsmParser
Ulrich Weigand [Fri, 3 May 2013 19:52:35 +0000 (19:52 +0000)]
[PowerPC] Parse platform-specifc variant kinds in AsmParser

This patch adds support for PowerPC platform-specific variant
kinds in MCSymbolRefExpr::getVariantKindForName, and also
adds a test case to verify they are translated to the appropriate
fixup type.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@181053 91177308-0d34-0410-b5e6-96231b3b80d8

10 years ago[PowerPC] Add some Book II instructions to AsmParser
Ulrich Weigand [Fri, 3 May 2013 19:51:09 +0000 (19:51 +0000)]
[PowerPC] Add some Book II instructions to AsmParser

This patch adds a couple of Book II instructions (isync, icbi) to the
PowerPC assembler parser.  These are needed when bootstrapping clang
with the integrated assembler forced on, because they are used in
inline asm statements in the code base.

The test case adds the full list of Book II storage control instructions,
including associated extended mnemonics.  Again, those that are not yet
supported as marked as FIXME.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@181052 91177308-0d34-0410-b5e6-96231b3b80d8

10 years ago[PowerPC] Support extended mnemonics in AsmParser
Ulrich Weigand [Fri, 3 May 2013 19:50:27 +0000 (19:50 +0000)]
[PowerPC] Support extended mnemonics in AsmParser

This patch adds infrastructure to support extended mnemonics in the
PowerPC assembler parser.  It adds support specifically for those
extended mnemonics that LLVM will itself generate.

The test case lists *all* extended mnemonics according to the
PowerPC ISA v2.06 Book I, but marks those not yet supported
as FIXME.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@181051 91177308-0d34-0410-b5e6-96231b3b80d8

10 years ago[PowerPC] Add assembler parser
Ulrich Weigand [Fri, 3 May 2013 19:49:39 +0000 (19:49 +0000)]
[PowerPC] Add assembler parser

This adds assembler parser support to the PowerPC back end.

The parser will run for any powerpc-*-* and powerpc64-*-* triples,
but was tested only on 64-bit Linux.  The supported syntax is
intended to be compatible with the GNU assembler.

The parser does not yet support all PowerPC instructions, but
it does support anything that is generated by LLVM itself.
There is no support for testing restricted instruction sets yet,
i.e. the parser will always accept any instructions it knows,
no matter what feature flags are given.

Instruction operands will be checked for validity and errors
generated.  (Error handling in general could still be improved.)

The patch adds a number of test cases to verify instruction
and operand encodings.  The tests currently cover all instructions
from the following PowerPC ISA v2.06 Book I facilities:
Branch, Fixed-point, Floating-Point, and Vector.
Note that a number of these instructions are not yet supported
by the back end; they are marked with FIXME.

A number of follow-on check-ins will add extra features.  When
they are all included, LLVM passes all tests (including bootstrap)
when using clang -cc1as as the system assembler.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@181050 91177308-0d34-0410-b5e6-96231b3b80d8

10 years agoDecompose GVN::processNonLocalLoad() (about 400 LOC) into smaller helper functions...
Shuxin Yang [Fri, 3 May 2013 19:17:26 +0000 (19:17 +0000)]
Decompose GVN::processNonLocalLoad() (about 400 LOC) into smaller helper functions. No function change.

This function consists of following steps:
   1. Collect dependent memory accesses.
   2. Analyze availability.
   3. Perform fully redundancy elimination, or
   4. Perform PRE, depending on the availability

 Step 2, 3 and 4 are now moved to three helper routines.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@181047 91177308-0d34-0410-b5e6-96231b3b80d8

10 years ago[mips] Split the DSP control register and define one register for each field of
Akira Hatanaka [Fri, 3 May 2013 18:37:49 +0000 (18:37 +0000)]
[mips] Split the DSP control register and define one register for each field of
its fields.

This removes false dependencies between DSP instructions which access different
fields of the the control register. Implicit register operands are added to
instructions RDDSP and WRDSP after instruction selection, depending on the
value of the mask operand.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@181041 91177308-0d34-0410-b5e6-96231b3b80d8

10 years agoLoopVectorizer: Add support for if-conversion of PHINodes with 3+ incoming values.
Nadav Rotem [Fri, 3 May 2013 17:42:55 +0000 (17:42 +0000)]
LoopVectorizer: Add support for if-conversion of PHINodes with 3+ incoming values.
By supporting the vectorization of PHINodes with more than two incoming values we can increase the complexity of nested if statements.

We can now vectorize this loop:

int foo(int *A, int *B, int n) {
  for (int i=0; i < n; i++) {
    int x = 9;
    if (A[i] > B[i]) {
      if (A[i] > 19) {
        x = 3;
      } else if (B[i] < 4 ) {
        x = 4;
      } else {
        x = 5;
      }
    }
    A[i] = x;
  }
}

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@181037 91177308-0d34-0410-b5e6-96231b3b80d8

10 years agoR600: Expand vector or, shl, srl, and xor nodes
Tom Stellard [Fri, 3 May 2013 17:21:31 +0000 (17:21 +0000)]
R600: Expand vector or, shl, srl, and xor nodes

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@181035 91177308-0d34-0410-b5e6-96231b3b80d8

10 years agoR600: BFI_INT is a vector-only instruction
Tom Stellard [Fri, 3 May 2013 17:21:24 +0000 (17:21 +0000)]
R600: BFI_INT is a vector-only instruction

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@181034 91177308-0d34-0410-b5e6-96231b3b80d8

10 years agoR600: Add pattern for SHA-256 Ma function
Tom Stellard [Fri, 3 May 2013 17:21:20 +0000 (17:21 +0000)]
R600: Add pattern for SHA-256 Ma function

This can be optimized using the BFI_INT instruction.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@181033 91177308-0d34-0410-b5e6-96231b3b80d8

10 years agoR600: Clean up comments in Processors.td
Tom Stellard [Fri, 3 May 2013 17:21:14 +0000 (17:21 +0000)]
R600: Clean up comments in Processors.td

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@181032 91177308-0d34-0410-b5e6-96231b3b80d8

10 years agoAutoconf: Compile cxxabi.h in C++ mode.
Benjamin Kramer [Fri, 3 May 2013 15:55:06 +0000 (15:55 +0000)]
Autoconf: Compile cxxabi.h in C++ mode.

Should fix PR15877.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@181026 91177308-0d34-0410-b5e6-96231b3b80d8

10 years agoRegionInfo: Do not crash if unreachable block is found
Tobias Grosser [Fri, 3 May 2013 15:48:34 +0000 (15:48 +0000)]
RegionInfo: Do not crash if unreachable block is found

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@181025 91177308-0d34-0410-b5e6-96231b3b80d8

10 years agoCMake: cxxabi.h is only available to C++ compilers, use the right check macro.
Benjamin Kramer [Fri, 3 May 2013 14:48:29 +0000 (14:48 +0000)]
CMake: cxxabi.h is only available to C++ compilers, use the right check macro.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@181019 91177308-0d34-0410-b5e6-96231b3b80d8

10 years agoRemove comment that no target supports 128-bit IEEE floats
Richard Sandiford [Fri, 3 May 2013 14:32:27 +0000 (14:32 +0000)]
Remove comment that no target supports 128-bit IEEE floats

The soon-to-be-committed SystemZ port uses 128-bit IEEE floats.
MIPS64 GNU/Linux does too (albeit with unusual NaNs).

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@181016 91177308-0d34-0410-b5e6-96231b3b80d8

10 years ago[SystemZ] Add MCJIT support
Richard Sandiford [Fri, 3 May 2013 14:15:35 +0000 (14:15 +0000)]
[SystemZ] Add MCJIT support

Another step towards reinstating the SystemZ backend.  I'll commit
the configure changes separately (TARGET_HAS_JIT etc.), then commit
a patch to enable the MCJIT tests on SystemZ.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@181015 91177308-0d34-0410-b5e6-96231b3b80d8

10 years ago[SystemZ] Support System Z as host architecture
Ulrich Weigand [Fri, 3 May 2013 12:22:11 +0000 (12:22 +0000)]
[SystemZ] Support System Z as host architecture

The llvm::sys::AddSignalHandler function (as well as related routines) in
lib/Support/Unix/Signals.inc currently registers a signal handler routine
via "sigaction".  When this handler is called due to a SIGSEGV, SIGILL or
similar signal, it will show a stack backtrace, deactivate the handler,
and then simply return to the operating system.  The intent is that the
OS will now retry execution at the same location as before, which ought
to again trigger the same error condition and cause the same signal to be
delivered again.  Since the hander is now deactivated, the OS will take
its default action (usually, terminate the program and possibly create
a core dump).

However, this method doesn't work reliably on System Z:  With certain
signals (namely SIGILL, SIGFPE, and SIGTRAP), the program counter stored
by the kernel on the signal stack frame (which is the location where
execution will resume) is not the instruction that triggered the fault,
but then instruction *after it*.  When the LLVM signal handler simply
returns to the kernel, execution will then resume at *that* address,
which will not trigger the problem again, but simply go on and execute
potentially unrelated code leading to random errors afterwards.

To fix this, the patch simply goes and re-raises the signal in question
directly from the handler instead of returning from it.  This is done
only on System Z and only for those signals that have this particular
problem.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@181010 91177308-0d34-0410-b5e6-96231b3b80d8

10 years agoAdd support for reading ARM ELF build attributes.
Amara Emerson [Fri, 3 May 2013 11:36:35 +0000 (11:36 +0000)]
Add support for reading ARM ELF build attributes.

Build attribute sections can now be read if they exist via ELFObjectFile, and
the llvm-readobj tool has been extended with an option to dump this information
if requested. Regression tests are also included which exercise these features.

Also update the docs with a fixed ARM ABI link and a new link to the Addenda
which provides the build attributes specification.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@181009 91177308-0d34-0410-b5e6-96231b3b80d8

10 years ago[SystemZ] Add ELF relocation support
Richard Sandiford [Fri, 3 May 2013 11:11:15 +0000 (11:11 +0000)]
[SystemZ] Add ELF relocation support

Another step towards reinstating the SystemZ backend.  Tests will be
included in the main backend patch.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@181008 91177308-0d34-0410-b5e6-96231b3b80d8

10 years ago[SystemZ] Add llvm::Triple::systemz
Richard Sandiford [Fri, 3 May 2013 11:05:17 +0000 (11:05 +0000)]
[SystemZ] Add llvm::Triple::systemz

First step towards reinstating the SystemZ backend.  Tests will be
included in the main backend patch.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@181007 91177308-0d34-0410-b5e6-96231b3b80d8

10 years agoX86: Add target description for btver2; make autodetection logic aware of AVX.
Benjamin Kramer [Fri, 3 May 2013 10:20:08 +0000 (10:20 +0000)]
X86: Add target description for btver2; make autodetection logic aware of AVX.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@181005 91177308-0d34-0410-b5e6-96231b3b80d8

10 years agoAdded pocl and TCE blurbs to the ReleaseNotes.
Pekka Jaaskelainen [Fri, 3 May 2013 07:37:04 +0000 (07:37 +0000)]
Added pocl and TCE blurbs to the ReleaseNotes.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@181001 91177308-0d34-0410-b5e6-96231b3b80d8

10 years agoUnbreaking the non-x86 build bots by protecting the AVX test code properly.
Aaron Ballman [Fri, 3 May 2013 02:52:21 +0000 (02:52 +0000)]
Unbreaking the non-x86 build bots by protecting the AVX test code properly.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@180992 91177308-0d34-0410-b5e6-96231b3b80d8

10 years agoCorrectly testing for AVX support in x86 based off code from Hosts.cpp.
Aaron Ballman [Fri, 3 May 2013 02:39:21 +0000 (02:39 +0000)]
Correctly testing for AVX support in x86 based off code from Hosts.cpp.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@180991 91177308-0d34-0410-b5e6-96231b3b80d8

10 years ago[mips] Remove "Commutative" from property list of non-commutative intrinsics.
Akira Hatanaka [Fri, 3 May 2013 01:29:31 +0000 (01:29 +0000)]
[mips] Remove "Commutative" from property list of non-commutative intrinsics.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@180988 91177308-0d34-0410-b5e6-96231b3b80d8

10 years agoFix missing include in Hexagon code for Release+Asserts
Reid Kleckner [Fri, 3 May 2013 00:54:56 +0000 (00:54 +0000)]
Fix missing include in Hexagon code for Release+Asserts

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@180983 91177308-0d34-0410-b5e6-96231b3b80d8

10 years agoIn MC asm parsing, account for the possibility of whitespace within
John McCall [Fri, 3 May 2013 00:15:41 +0000 (00:15 +0000)]
In MC asm parsing, account for the possibility of whitespace within
the "identifier" parsed by the frontend callback by skipping forward
until we've consumed a token that ends at the point dictated by the
callback.

In addition, inform the callback when it's parsing an unevaluated
operand (e.g. mov eax, LENGTH A::x) as opposed to an evaluated one
(e.g. mov eax, [A::x]).

This commit depends on a clang commit.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@180978 91177308-0d34-0410-b5e6-96231b3b80d8

10 years ago[mips] Handle reading, writing or copying of ccond field of DSP control
Akira Hatanaka [Thu, 2 May 2013 23:07:05 +0000 (23:07 +0000)]
[mips] Handle reading, writing or copying of ccond field of DSP control
register.

- Define pseudo instructions which store or load ccond field of the DSP
  control register.
- Emit the pseudos in MipsSEInstrInfo::storeRegToStack and loadRegFromStack.
- Expand the pseudos before callee-scan save.
- Emit instructions RDDSP or WRDSP to copy between ccond field and GPRs.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@180969 91177308-0d34-0410-b5e6-96231b3b80d8

10 years agoRemove redundant flag.
Bill Wendling [Thu, 2 May 2013 22:52:47 +0000 (22:52 +0000)]
Remove redundant flag.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@180967 91177308-0d34-0410-b5e6-96231b3b80d8

10 years agoreverting r180953
Jyotsna Verma [Thu, 2 May 2013 22:10:59 +0000 (22:10 +0000)]
reverting r180953

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@180964 91177308-0d34-0410-b5e6-96231b3b80d8

10 years agoR600: Signed literals are 64bits wide
Vincent Lejeune [Thu, 2 May 2013 21:53:03 +0000 (21:53 +0000)]
R600: Signed literals are 64bits wide

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@180960 91177308-0d34-0410-b5e6-96231b3b80d8

10 years agoR600: If previous bundle is dot4, PV valid chan is always X
Vincent Lejeune [Thu, 2 May 2013 21:52:55 +0000 (21:52 +0000)]
R600: If previous bundle is dot4, PV valid chan is always X

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@180959 91177308-0d34-0410-b5e6-96231b3b80d8

10 years agoR600: Add a test to check that use_kill is emitted
Vincent Lejeune [Thu, 2 May 2013 21:52:46 +0000 (21:52 +0000)]
R600: Add a test to check that use_kill is emitted

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@180958 91177308-0d34-0410-b5e6-96231b3b80d8

10 years agoR600: Improve asmPrint of ALU clause
Vincent Lejeune [Thu, 2 May 2013 21:52:40 +0000 (21:52 +0000)]
R600: Improve asmPrint of ALU clause

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@180957 91177308-0d34-0410-b5e6-96231b3b80d8

10 years agoR600: Prettier asmPrint of Alu
Vincent Lejeune [Thu, 2 May 2013 21:52:30 +0000 (21:52 +0000)]
R600: Prettier asmPrint of Alu

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@180956 91177308-0d34-0410-b5e6-96231b3b80d8

10 years agoHexagon: Add multiclass/encoding bits for the New-Value Jump instructions.
Jyotsna Verma [Thu, 2 May 2013 21:21:57 +0000 (21:21 +0000)]
Hexagon: Add multiclass/encoding bits for the New-Value Jump instructions.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@180953 91177308-0d34-0410-b5e6-96231b3b80d8

10 years ago[GV] Remove dead code which is really difficult to decipher.
Shuxin Yang [Thu, 2 May 2013 21:14:31 +0000 (21:14 +0000)]
[GV] Remove dead code which is really difficult to decipher.

Actually it took me couple of hours trying to make sense of them and
only to find they are dead code.  I guess the original author used
"allSingleSucc" to indicate if there are any critial edge emanating
from some blocks, and tried to perform code motion (actually speculation)
in the presence of these critical edges; but later on he/she changed mind
and decided to perform edge-splitting first.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@180951 91177308-0d34-0410-b5e6-96231b3b80d8

10 years agoWe don't want FP elimination when doing an Apple-style build.
Bill Wendling [Thu, 2 May 2013 21:09:03 +0000 (21:09 +0000)]
We don't want FP elimination when doing an Apple-style build.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@180949 91177308-0d34-0410-b5e6-96231b3b80d8

10 years agoReplaced usages of size_type with size_t to be more consistent.
Aaron Ballman [Thu, 2 May 2013 20:30:27 +0000 (20:30 +0000)]
Replaced usages of size_type with size_t to be more consistent.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@180947 91177308-0d34-0410-b5e6-96231b3b80d8

10 years agoHexagon - Add peephole optimizations for zero extends.
Pranav Bhandarkar [Thu, 2 May 2013 20:22:51 +0000 (20:22 +0000)]
Hexagon - Add peephole optimizations for zero extends.

* lib/Target/Hexagon/HexagonInstrInfo.td: Add patterns to combine a
sequence of a pair of i32->i64 extensions followed by a "bitwise or"
into COMBINE_rr.
* lib/Target/Hexagon/HexagonPeephole.cpp: Copy propagate Rx in the
instruction Rp = COMBINE_Ir_V4(0, Rx) to the uses of Rp:subreg_loreg.
* test/CodeGen/Hexagon/union-1.ll: New test.
* test/CodeGen/Hexagon/combine_ir.ll: Fix test.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@180946 91177308-0d34-0410-b5e6-96231b3b80d8

10 years ago[mips] Fix the head Mips16RegisterInfo.cpp comment
Richard Sandiford [Thu, 2 May 2013 18:28:03 +0000 (18:28 +0000)]
[mips] Fix the head Mips16RegisterInfo.cpp comment

...aka a test commit.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@180936 91177308-0d34-0410-b5e6-96231b3b80d8

10 years agoTBAA: remove !tbaa from testing cases if not used.
Manman Ren [Thu, 2 May 2013 18:11:35 +0000 (18:11 +0000)]
TBAA: remove !tbaa from testing cases if not used.

This will make it easier to turn on struct-path aware TBAA since the metadata
format will change.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@180935 91177308-0d34-0410-b5e6-96231b3b80d8

10 years agoProvide an API to temporarily suppress DebugLocations from being attached
Adrian Prantl [Thu, 2 May 2013 17:27:49 +0000 (17:27 +0000)]
Provide an API to temporarily suppress DebugLocations from being attached
to emitted instructions.  Use this if you want an instruction to be
counted towards the prologue or if there is no useful source location.

rdar://problem/13442648

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@180929 91177308-0d34-0410-b5e6-96231b3b80d8

10 years agoHexagon: Honor __builtin_expect by using branch probabilities.
Jyotsna Verma [Thu, 2 May 2013 15:39:30 +0000 (15:39 +0000)]
Hexagon: Honor __builtin_expect by using branch probabilities.

  * lib/Target/Hexagon/HexagonInstrInfo.cpp (GetDotNewPredOp):
  Given a jump opcode return the right pred.new jump opcode with
  a taken vs not-taken hint based on branch probabilities provided
  by the target independent module.
  * lib/Target/Hexagon/HexagonVLIWPacketizer.cpp: Use the above function.
  * lib/Target/Hexagon/HexagonNewValueJump.cpp(getNewvalueJumpOpcode):
  Enhance existing function use branch probabilities like
  HexagonInstrInfo::GetDotNewPredOp but for New Value (GPR) Jumps.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@180923 91177308-0d34-0410-b5e6-96231b3b80d8

10 years agoR600: Use new tablegen syntax for patterns
Tom Stellard [Thu, 2 May 2013 15:30:12 +0000 (15:30 +0000)]
R600: Use new tablegen syntax for patterns

All but two patterns have been converted to the new syntax.  The
remaining two patterns will require COPY_TO_REGCLASS instructions, which
the VLIW DAG Scheduler cannot handle.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@180922 91177308-0d34-0410-b5e6-96231b3b80d8

10 years agoR600/SI: remove nonsense select pattern
Tom Stellard [Thu, 2 May 2013 15:30:07 +0000 (15:30 +0000)]
R600/SI: remove nonsense select pattern

Fortunately this pattern never matched, otherwise
we would have generated incorrect code.

Signed-off-by: Christian K??nig <christian.koenig@amd.com>
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@180921 91177308-0d34-0410-b5e6-96231b3b80d8

10 years agoAdded table of contents declaration in CommandLine Library documentation.
Tobias Grosser [Thu, 2 May 2013 14:59:52 +0000 (14:59 +0000)]
Added table of contents declaration in CommandLine Library documentation.

Contributed-by: Dan Liew <daniel.liew@imperial.ac.uk>
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@180919 91177308-0d34-0410-b5e6-96231b3b80d8

10 years ago80-col fixup.
Michael Liao [Thu, 2 May 2013 09:22:04 +0000 (09:22 +0000)]
80-col fixup.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@180915 91177308-0d34-0410-b5e6-96231b3b80d8

10 years agoAvoid duplicating logic on frame register selecting when lowering eh_return
Michael Liao [Thu, 2 May 2013 09:18:38 +0000 (09:18 +0000)]
Avoid duplicating logic on frame register selecting when lowering eh_return

No functionality change

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@180914 91177308-0d34-0410-b5e6-96231b3b80d8

10 years agoAvoid duplicating logic on frame register selecting when lowering frameaddr
Michael Liao [Thu, 2 May 2013 08:21:56 +0000 (08:21 +0000)]
Avoid duplicating logic on frame register selecting when lowering frameaddr

No functionality change

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@180912 91177308-0d34-0410-b5e6-96231b3b80d8

10 years agoRewrite X86 codegen regression test with FileCheck
Michael Liao [Thu, 2 May 2013 06:20:42 +0000 (06:20 +0000)]
Rewrite X86 codegen regression test with FileCheck

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@180910 91177308-0d34-0410-b5e6-96231b3b80d8

10 years agoAdd a test for the foldSelectICmpAndOr fix committed in r180779.
David Majnemer [Thu, 2 May 2013 02:44:23 +0000 (02:44 +0000)]
Add a test for the foldSelectICmpAndOr fix committed in r180779.

This tests a case where C1 and C2 were the same but X and Y were different
widths.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@180907 91177308-0d34-0410-b5e6-96231b3b80d8

10 years agoTiedTo flag can now be placed on implicit operands. isTwoAddrUse() should look
Evan Cheng [Thu, 2 May 2013 02:07:32 +0000 (02:07 +0000)]
TiedTo flag can now be placed on implicit operands. isTwoAddrUse() should look
at all of the operands. Previously it was skipping over implicit operands which
cause infinite looping when the two-address pass try to reschedule a
two-address instruction below the kill of tied operand.

I'm unable to come up with a reasonably sized test case.
rdar://13747577

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@180906 91177308-0d34-0410-b5e6-96231b3b80d8

10 years ago[mips] Rename class and functions. Simplify code.
Akira Hatanaka [Wed, 1 May 2013 23:41:31 +0000 (23:41 +0000)]
[mips] Rename class and functions. Simplify code.

No functionality changes.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@180897 91177308-0d34-0410-b5e6-96231b3b80d8

10 years agoThis exposes more MCJIT options via the C API:
Filip Pizlo [Wed, 1 May 2013 22:58:00 +0000 (22:58 +0000)]
This exposes more MCJIT options via the C API:

CodeModel: It's now possible to create an MCJIT instance with any CodeModel you like.  Previously it was only possible to
create an MCJIT that used CodeModel::JITDefault.

EnableFastISel: It's now possible to turn on the fast instruction selector.

The CodeModel option required some trickery.  The problem is that previously, we were ensuring future binary compatibility in
the MCJITCompilerOptions by mandating that the user bzero's the options struct and passes the sizeof() that he saw; the
bindings then bzero the remaining bits.  This works great but assumes that the bitwise zero equivalent of any field is a
sensible default value.

But this is not the case for LLVMCodeModel, or its internal equivalent, llvm::CodeModel::Model.  In both of those, the default
for a JIT is CodeModel::JITDefault (or LLVMCodeModelJITDefault), which is not bitwise zero.

Hence this change introduces LLVMInitializeMCJITCompilerOptions(), which will initialize the user's options struct with
defaults. The user will use this in the same way that they would have previously used memset() or bzero(). MCJITCAPITest.cpp
illustrates the change, as does the comment in ExecutionEngine.h.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@180893 91177308-0d34-0410-b5e6-96231b3b80d8

10 years agoAvoid generating tempfile(s) never used
Michael Liao [Wed, 1 May 2013 22:46:50 +0000 (22:46 +0000)]
Avoid generating tempfile(s) never used

As DejaGNU is deprecated, it seems pipe-jam issue doesn't exist any more.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@180892 91177308-0d34-0410-b5e6-96231b3b80d8

10 years agoRename 'struct LLVMTargetMachine' to 'struct LLVMOpaqueTargetMachine'.
Filip Pizlo [Wed, 1 May 2013 22:41:26 +0000 (22:41 +0000)]
Rename 'struct LLVMTargetMachine' to 'struct LLVMOpaqueTargetMachine'.
This avoids namespace collisions with llvm::LLVMTargetMachine.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@180891 91177308-0d34-0410-b5e6-96231b3b80d8

10 years agoRevert r180737. The companion patch was reverted, and this is not relevant right...
Bill Wendling [Wed, 1 May 2013 22:32:08 +0000 (22:32 +0000)]
Revert r180737. The companion patch was reverted, and this is not relevant right now.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@180889 91177308-0d34-0410-b5e6-96231b3b80d8

10 years agoHexagon: Use multiclass for Jump instructions.
Jyotsna Verma [Wed, 1 May 2013 21:37:34 +0000 (21:37 +0000)]
Hexagon: Use multiclass for Jump instructions.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@180885 91177308-0d34-0410-b5e6-96231b3b80d8

10 years agoHexagon: Clear isKill flag on the predicate register in
Jyotsna Verma [Wed, 1 May 2013 21:27:30 +0000 (21:27 +0000)]
Hexagon: Clear isKill flag on the predicate register in
PredicateInstruction function.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@180884 91177308-0d34-0410-b5e6-96231b3b80d8

10 years agoAdd support for other typeinfo encodings in the ExceptionDemo.
Rafael Espindola [Wed, 1 May 2013 21:05:05 +0000 (21:05 +0000)]
Add support for other typeinfo encodings in the ExceptionDemo.

The old jit always uses DW_EH_PE_absptr, but MCJIT can use other encodings.
This is in preparation for adding EH support to MCJIT, but not directly
related, so I am committing it first.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@180883 91177308-0d34-0410-b5e6-96231b3b80d8

10 years agoFix file header comment.
Filip Pizlo [Wed, 1 May 2013 21:01:06 +0000 (21:01 +0000)]
Fix file header comment.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@180882 91177308-0d34-0410-b5e6-96231b3b80d8

10 years agoThis patch breaks up Wrap.h so that it does not have to include all of
Filip Pizlo [Wed, 1 May 2013 20:59:00 +0000 (20:59 +0000)]
This patch breaks up Wrap.h so that it does not have to include all of
the things, and renames it to CBindingWrapping.h.  I also moved
CBindingWrapping.h into Support/.

This new file just contains the macros for defining different wrap/unwrap
methods.

The calls to those macros, as well as any custom wrap/unwrap definitions
(like for array of Values for example), are put into corresponding C++
headers.

Doing this required some #include surgery, since some .cpp files relied
on the fact that including Wrap.h implicitly caused the inclusion of a
bunch of other things.

This also now means that the C++ headers will include their corresponding
C API headers; for example Value.h must include llvm-c/Core.h.  I think
this is harmless, since the C API headers contain just external function
declarations and some C types, so I don't believe there should be any
nasty dependency issues here.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@180881 91177308-0d34-0410-b5e6-96231b3b80d8

10 years agoSROA: Generate selects instead of shuffles when blending values because this is the...
Nadav Rotem [Wed, 1 May 2013 19:53:30 +0000 (19:53 +0000)]
SROA: Generate selects instead of shuffles when blending values because this is the cannonical form.
Shuffles are more difficult to lower and we usually don't touch them, while we do optimize selects more often.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@180875 91177308-0d34-0410-b5e6-96231b3b80d8

10 years ago[inline asm] Return an undef SDValue of the expected value type, rather than
Chad Rosier [Wed, 1 May 2013 19:49:26 +0000 (19:49 +0000)]
[inline asm] Return an undef SDValue of the expected value type, rather than
report a fatal error.  This allows us to continue processing the translation
unit.  Test case to come on the clang side because we need an inline asm
diagnostics handler in place.
rdar://13446483

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@180873 91177308-0d34-0410-b5e6-96231b3b80d8

10 years agoOptimize away nop CONCAT_VECTOR nodes.
Nadav Rotem [Wed, 1 May 2013 19:18:51 +0000 (19:18 +0000)]
Optimize away nop CONCAT_VECTOR nodes.

Optimize CONCAT_VECTOR nodes that merge EXTRACT_SUBVECTOR values that extract from the same vector.

rdar://13402653
PR15866

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@180871 91177308-0d34-0410-b5e6-96231b3b80d8