oota-llvm.git
7 years agoFix LLVM C API for DataLayout
Mehdi Amini [Wed, 26 Aug 2015 18:22:34 +0000 (18:22 +0000)]
Fix LLVM C API for DataLayout

We removed access to the DataLayout on the TargetMachine and
deprecated the C API function LLVMGetTargetMachineData() in r243114.
However the way I tried to be backward compatible was broken: I
changed the wrapper of the TargetMachine to be a structure that
includes the DataLayout as well. However the TargetMachine is also
wrapped by the ExecutionEngine, in the more classic way. A client
using the TargetMachine wrapped by the ExecutionEngine and trying
to get the DataLayout would break.

It seems tricky to solve the problem completely in the C API
implementation. This patch tries to address this backward
compatibility in a more lighter way in the C++ API. The C API is
restored in its original state and the removed C++ API is
reintroduced, but privately. The C API is friended to the
TargetMachine and should be the only consumer for this API.

Reviewers: ributzka

Differential Revision: http://reviews.llvm.org/D12263

From: Mehdi Amini <mehdi.amini@apple.com>

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@246044 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago[SPARC] Fix stupid oversight in stack realignment support.
James Y Knight [Wed, 26 Aug 2015 17:57:51 +0000 (17:57 +0000)]
[SPARC] Fix stupid oversight in stack realignment support.

If you're going to realign %sp to get object alignment properly (which
the code does), and stack offsets and alignments are calculated going
down from %fp (which they are), then the total stack size had better
be a multiple of the alignment. LLVM did indeed ensure that.

And then, after aligning, the sparc frame code added 96 (for sparcv8)
to the frame size, making any requested alignment of 64-bytes or
higher *guaranteed* to be misaligned. The test case added with r245668
even tests this exact scenario, and asserted the incorrect behavior,
which I somehow failed to notice. D'oh.

This change fixes the frame lowering code to align the stack size
*after* adding the spill area, instead.

Differential Revision: http://reviews.llvm.org/D12349

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@246042 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago[docs][Statepoint] Add definitions for base and derived pointers
Philip Reames [Wed, 26 Aug 2015 17:25:36 +0000 (17:25 +0000)]
[docs][Statepoint] Add definitions for base and derived pointers

This section will be expanded over the next few days.  This is just some initial content.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@246041 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago[llvm-mc] Ignore opcode size prefix in 64-bit CALL disassembly
Vedant Kumar [Wed, 26 Aug 2015 16:20:29 +0000 (16:20 +0000)]
[llvm-mc] Ignore opcode size prefix in 64-bit CALL disassembly

This is a fix for disassembling unusual instruction sequences in 64-bit
mode w.r.t the CALL rel16 instruction. It might be desirable to move the
check somewhere else, but it essentially mimics the special case
handling with JCXZ in 16-bit mode.

The current behavior accepts the opcode size prefix and causes the
call's immediate to stop disassembling after 2 bytes. When debugging
sequences of instructions with this pattern, the disassembler output
becomes extremely unreliable and essentially useless (if you jump midway
into what lldb thinks is a unified instruction, you'll lose %rip). So we
ignore the prefix and consume all 4 bytes when disassembling a 64-bit
mode binary.

Note: in Vol. 2A 3-99 the Intel spec states that CALL rel16 is N.S. N.S.
is defined as:

    Indicates an instruction syntax that requires an address override
    prefix in 64-bit mode and is not supported. Using an address
    override prefix in 64-bit mode may result in model-specific
    execution behavior. (Vol. 2A 3-7)

Since 0x66 is an operand override prefix we should be OK (although we
may want to warn about 0x67 prefixes to 0xe8). On the CPUs I tested
with, they all ignore the 0x66 prefix in 64-bit mode.

Patch by Matthew Barney!

Differential Revision: http://reviews.llvm.org/D9573

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@246038 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago[AArch64] Remove a use-after-free when collecting stats.
Chad Rosier [Wed, 26 Aug 2015 13:39:48 +0000 (13:39 +0000)]
[AArch64] Remove a use-after-free when collecting stats.

The call to mergePairedInsns() deletes MI, so the later use by isUnscaledLdSt()
is referencing freed memory.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@246033 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago[llvm-objdump] Use the new MinVersion API introduced in r245938. NFC.
Davide Italiano [Wed, 26 Aug 2015 12:26:11 +0000 (12:26 +0000)]
[llvm-objdump] Use the new MinVersion API introduced in r245938. NFC.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@246031 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago[AArch64] Unify the integer min/max vector selection patterns with the intrinsic...
Silviu Baranga [Wed, 26 Aug 2015 11:11:14 +0000 (11:11 +0000)]
[AArch64] Unify the integer min/max vector selection patterns with the intrinsic ones

Summary:
This change lowers the aarch64 integer vector min/max intrinsic nodes to
generic min/max nodes and replaces the intrinsic selection patterns with
the generic ones.

There should already be testing in place for this, so no further tests
were added.

Reviewers: jmolloy

Subscribers: aemerson, llvm-commits, rengolin

Differential Revision: http://reviews.llvm.org/D12276

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@246030 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago[SROA] Rip out all support for SSAUpdater in SROA.
Chandler Carruth [Wed, 26 Aug 2015 09:09:29 +0000 (09:09 +0000)]
[SROA] Rip out all support for SSAUpdater in SROA.

This was only added to preserve the old ScalarRepl's use of SSAUpdater
which was originally to avoid use of dominance frontiers. Now, we only
need a domtree, and we'll need a domtree right after this pass as well
and so it makes perfect sense to always and only use the dom-tree
powered mem2reg. This was flag-flipper earlier and has stuck reasonably
so I wanted to gut the now-dead code out of SROA before we waste more
time with it. Among other things, this will make passmanager porting
easier.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@246028 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoKaleidoscope: Update libdeps corresponding to r246002.
NAKAMURA Takumi [Wed, 26 Aug 2015 08:05:55 +0000 (08:05 +0000)]
Kaleidoscope: Update libdeps corresponding to r246002.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@246025 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoRevert "[dsymutil] Emit real dSYM companion binaries."
Frederic Riss [Wed, 26 Aug 2015 06:41:57 +0000 (06:41 +0000)]
Revert "[dsymutil] Emit real dSYM companion binaries."

This reverts commit r246012.
Some bots do not like it (mips/s390).

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@246019 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoModernize with range-based for loops.
Alex Rosenberg [Wed, 26 Aug 2015 06:11:41 +0000 (06:11 +0000)]
Modernize with range-based for loops.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@246018 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoReduce code duplication.
Alex Rosenberg [Wed, 26 Aug 2015 06:11:38 +0000 (06:11 +0000)]
Reduce code duplication.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@246017 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoTrailing whitespace
Alex Rosenberg [Wed, 26 Aug 2015 06:11:36 +0000 (06:11 +0000)]
Trailing whitespace

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@246016 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago[dsymutil] Emit real dSYM companion binaries.
Frederic Riss [Wed, 26 Aug 2015 05:10:04 +0000 (05:10 +0000)]
[dsymutil] Emit real dSYM companion binaries.

The binaries containing the linked DWARF generated by dsymutil are not
standard relocatable object files like emitted did previsously. They should be
dSYM companion files, which means they have a different file type in the
header, but also a couple other peculiarities:
 - they contain the segments and sections from the original binary in their
load commands, but not the actual contents. This means they get an address
and a size, but their offset is always 0 (but these are not virtual sections)
 - they also conatin all the defined symbols from the original binary

This makes MC a really bad fit to emit these kind of binaries. The approach
that was used in this patch is to leverage MC's section layout for the
debug sections, but to use a replacement for MachObjectWriter that lives
in MachOUtils.cpp. Some of the low-level helpers from MachObjectWriter
were reused too.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@246012 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago[dsymutil] Store an optional BinaryPath in the debug map.
Frederic Riss [Wed, 26 Aug 2015 05:09:59 +0000 (05:09 +0000)]
[dsymutil] Store an optional BinaryPath in the debug map.

llvm-dsymutil needs to emit dSYM companion bundles. These are binary files
that replicate some of the orignal binary file properties (sections and
symbols). To get acces to these properties, pass the binary path in the
debug map.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@246011 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago[dsymutil] Make the warn and error helpers globally available. NFC.
Frederic Riss [Wed, 26 Aug 2015 05:09:55 +0000 (05:09 +0000)]
[dsymutil] Make the warn and error helpers globally available. NFC.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@246010 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago[dsymutil] Split NonRelocatableStringPool into its own file. NFC.
Frederic Riss [Wed, 26 Aug 2015 05:09:52 +0000 (05:09 +0000)]
[dsymutil] Split NonRelocatableStringPool into its own file. NFC.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@246009 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago[MC] Split the layout part of MCAssembler::finish() into its own method. NFC.
Frederic Riss [Wed, 26 Aug 2015 05:09:49 +0000 (05:09 +0000)]
[MC] Split the layout part of MCAssembler::finish() into its own method. NFC.

Split a MCAssembler::layout() method out of MCAssembler::finish(). This allows
running the MCSections layout separately from the streaming of the output
file. This way if a client wants to use MC to generate section contents, but
emit something different than the standard relocatable object files it is
possible (llvm-dsymutil is such a client).

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@246008 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago[MC/MachO] Make some MachObjectWriter methods more generic. NFC.
Frederic Riss [Wed, 26 Aug 2015 05:09:46 +0000 (05:09 +0000)]
[MC/MachO] Make some MachObjectWriter methods more generic. NFC.

Hardcode less values in some mach-o header writing routines and pass them
as argument. Doing so will allow reusing this code in llvm-dsymutil.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@246007 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoBig Kaleidoscope tutorial update.
Lang Hames [Wed, 26 Aug 2015 03:07:41 +0000 (03:07 +0000)]
Big Kaleidoscope tutorial update.

This commit switches the underlying JIT for the Kaleidoscope tutorials from
MCJIT to a custom ORC-based JIT, KaleidoscopeJIT. This fixes a lot of the bugs
in Kaleidoscope that were introduced when we deleted the legacy JIT. The
documentation for Chapter 4, which introduces the JIT APIs, is updated to
reflect the change.

Also included are a number of C++11 modernizations and general cleanup. Where
appropriate, the docs have been updated to reflect these changes too.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@246002 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoComparing operands should not require the same ValueID
JF Bastien [Wed, 26 Aug 2015 03:02:58 +0000 (03:02 +0000)]
Comparing operands should not require the same ValueID

Summary: When comparing basic blocks, there is an additional check that two Value*'s should have the same ID, which interferes with merging equivalent constants of different kinds (such as a ConstantInt and a ConstantPointerNull in the included testcase). The cmpValues function already ensures that the two values in each function are the same, so removing this check should not cause incorrect merging.

Also, the type comparison is redundant, based on reviewing the code and testing on the test suite and several large LTO bitcodes.

Author: jrkoenig
Reviewers: nlewycky, jfb, dschuff
Subscribers: llvm-commits
Differential revision: http://reviews.llvm.org/D12302

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@246001 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoExpose more properties of llvm::fltSemantics
JF Bastien [Wed, 26 Aug 2015 02:32:45 +0000 (02:32 +0000)]
Expose more properties of llvm::fltSemantics

Summary: Adds accessor functions for all the fields in llvm::fltSemantics. This will be used in MergeFunctions to order two APFloats with different semanatics.

Author: jrkoenig
Reviewers: jfb
Subscribers: dschuff, llvm-commits
Differential revision: http://reviews.llvm.org/D12253

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@245999 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoFastISel: Use finishCondBranch() for ARM,Mips,PowerPC FastISel
Matthias Braun [Wed, 26 Aug 2015 01:55:47 +0000 (01:55 +0000)]
FastISel: Use finishCondBranch() for ARM,Mips,PowerPC FastISel

Note that after this change branch probabilities are preserved now.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@245998 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoFastISel: Factor out common code; NFC intended
Matthias Braun [Wed, 26 Aug 2015 01:38:00 +0000 (01:38 +0000)]
FastISel: Factor out common code; NFC intended

This should be no functional change but for the record: For three cases
in X86FastISel this will change the order in which the FalseMBB and
TrueMBB of a conditional branch is addedd to the successor/predecessor
lists.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@245997 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoWebAssembly: add small FIXME for AsmPrinter.
JF Bastien [Wed, 26 Aug 2015 00:50:49 +0000 (00:50 +0000)]
WebAssembly: add small FIXME for AsmPrinter.

Suggested by @sunfish as a follow-up to r245982.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@245996 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoRefactor to reduce duplication in OnDiskIterableChainedHashTable's iterators.
Richard Smith [Wed, 26 Aug 2015 00:22:41 +0000 (00:22 +0000)]
Refactor to reduce duplication in OnDiskIterableChainedHashTable's iterators.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@245995 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago[dsymutil] actually fix test.
Frederic Riss [Tue, 25 Aug 2015 23:29:43 +0000 (23:29 +0000)]
[dsymutil] actually fix test.

Not all machines have lipo installed. Do not try to invoke it.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@245991 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoMake variable argument intrinsics behave correctly in a Win64 CC function.
Charles Davis [Tue, 25 Aug 2015 23:27:41 +0000 (23:27 +0000)]
Make variable argument intrinsics behave correctly in a Win64 CC function.

Summary:
This change makes the variable argument intrinsics, `llvm.va_start` and
`llvm.va_copy`, and the `va_arg` instruction behave as they do on Windows
inside a `CallingConv::X86_64_Win64` function. It's needed for a Clang patch
I have to add support for GCC's `__builtin_ms_va_list` constructs.

Reviewers: nadav, asl, eugenis

CC: llvm-commits
Differential Revision: http://llvm-reviews.chandlerc.com/D1622

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@245990 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoWebAssembly: assert that there aren't any constant pools
JF Bastien [Tue, 25 Aug 2015 23:19:49 +0000 (23:19 +0000)]
WebAssembly: assert that there aren't any constant pools

WebAssembly will either use globals or immediates, since it's a virtual ISA.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@245989 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago[dsymutil] Reapply r245960.
Frederic Riss [Tue, 25 Aug 2015 23:15:26 +0000 (23:15 +0000)]
[dsymutil] Reapply r245960.

There was an issue in the test setup because the test requires an arch that
wasn't filtered by the lit.local.cfg, but given the set of bots that failed,
I'm not confident this is the (only) issue. So this commit also adds more
output to the test to help me track down the failure if it happens again.

Original commit message:
[dsymutil] Rewrite thumb triple names in user visible messages.

We autodetect triples from the input file(s) while reading the mach-o debug map.
As we need to create a Target from those triples, we always chose the thumb
variant (because the arm variant might not be 'instantiable' eg armv7m). The
user visible architecture names should still be 'arm' and not 'thumb' variants
though.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@245988 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoWebAssembly: emit `(func (param t) (result t))` s-expressions
JF Bastien [Tue, 25 Aug 2015 22:58:05 +0000 (22:58 +0000)]
WebAssembly: emit `(func (param t) (result t))` s-expressions

Summary: Match spec format: https://github.com/WebAssembly/spec/blob/master/ml-proto/test/fac.wasm

Reviewers: sunfish

Subscribers: llvm-commits, jfb

Differential Revision: http://reviews.llvm.org/D12307

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@245986 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoWebAssembly: comment out .globl when printing textual assembly
JF Bastien [Tue, 25 Aug 2015 22:23:15 +0000 (22:23 +0000)]
WebAssembly: comment out .globl when printing textual assembly

Do the same for .weak (not implemented for now, but may as well to it). Update comment string to two semicolons.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@245982 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago[msan] Precise instrumentation for icmp sgt %x, -1.
Evgeniy Stepanov [Tue, 25 Aug 2015 22:19:11 +0000 (22:19 +0000)]
[msan] Precise instrumentation for icmp sgt %x, -1.

Extend signed relational comparison instrumentation with a special
case for comparisons with -1. This fixes an MSan false positive when
such comparison is used as a sign bit test.

https://llvm.org/bugs/show_bug.cgi?id=24561

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@245980 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago[MC] Add a SetUsed default param to MCSymbol accessors (NFC)
Vedant Kumar [Tue, 25 Aug 2015 22:06:07 +0000 (22:06 +0000)]
[MC] Add a SetUsed default param to MCSymbol accessors (NFC)

Reviewed by: rafael

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@245978 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoMachineBasicBlock: Use MCPhysReg instead of unsigned in livein API
Matthias Braun [Tue, 25 Aug 2015 22:05:55 +0000 (22:05 +0000)]
MachineBasicBlock: Use MCPhysReg instead of unsigned in livein API

This is friendlier to the readers as it makes it clear that the API is
not meant for vregs but just for physregs.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@245977 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoRemove the final bit test during lowering switch statement if all cases in bit test...
Cong Hou [Tue, 25 Aug 2015 21:34:38 +0000 (21:34 +0000)]
Remove the final bit test during lowering switch statement if all cases in bit test cover a contiguous range.

When lowering switch statement, if bit tests are used then LLVM will always generates a jump to the default statement in the last bit test. However, this is not necessary when all cases in bit tests cover a contiguous range. This is because when generating the bit tests header MBB, there is a range check that guarantees cases in bit tests won't go outside of [low, high], where low and high are minimum and maximum case values in the bit tests. This patch checks if this is the case and then doesn't emit jump to default statement and hence saves a bit test and a branch.

Differential Revision: http://reviews.llvm.org/D12249

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@245976 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoUse CHECK-LABEL in MSan IR tests.
Evgeniy Stepanov [Tue, 25 Aug 2015 20:59:26 +0000 (20:59 +0000)]
Use CHECK-LABEL in MSan IR tests.

This actually found one case when a test was matching instructions
from the output of a different test.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@245974 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoRevert "[dsymutil] Rewrite thumb triple names in user visible messages."
Frederic Riss [Tue, 25 Aug 2015 18:43:11 +0000 (18:43 +0000)]
Revert "[dsymutil] Rewrite thumb triple names in user visible messages."

This reverts commit r245960.

Multiple bots are failing on the new test. It seemd like llvm-dsymutil exits with an error. Investigating.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@245964 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago[MachO] Move trivial accessors to header.
Davide Italiano [Tue, 25 Aug 2015 18:27:59 +0000 (18:27 +0000)]
[MachO] Move trivial accessors to header.

Requested by: Jim Grosbach.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@245963 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago[dsymutil] Rewrite thumb triple names in user visible messages.
Frederic Riss [Tue, 25 Aug 2015 18:19:48 +0000 (18:19 +0000)]
[dsymutil] Rewrite thumb triple names in user visible messages.

We autodetect triples from the input file(s) while reading the mach-o debug map.
As we need to create a Target from those triples, we always chose the thumb
variant (because the arm variant might not be 'instantiable' eg armv7m). The
user visible architecture names should still be 'arm' and not 'thumb' variants
though.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@245960 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago[dsymutil] Not finding any debug info is not a fatal error
Frederic Riss [Tue, 25 Aug 2015 18:19:43 +0000 (18:19 +0000)]
[dsymutil] Not finding any debug info is not a fatal error

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@245959 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agofix CHECK-LABEL and wrong label
Sanjay Patel [Tue, 25 Aug 2015 18:12:40 +0000 (18:12 +0000)]
fix CHECK-LABEL and wrong label

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@245958 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoUpdate libdeps in LLVMipo and LLVMScalarOpts, corresponding to r245940.
NAKAMURA Takumi [Tue, 25 Aug 2015 17:11:17 +0000 (17:11 +0000)]
Update libdeps in LLVMipo and LLVMScalarOpts, corresponding to r245940.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@245957 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoSlotIndexes: Introduce an iterator into the idx2MBBMap.
Matthias Braun [Tue, 25 Aug 2015 17:10:17 +0000 (17:10 +0000)]
SlotIndexes: Introduce an iterator into the idx2MBBMap.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@245956 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoFix dependencies/shared library build
Matthias Braun [Tue, 25 Aug 2015 17:07:40 +0000 (17:07 +0000)]
Fix dependencies/shared library build

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@245955 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoFix dropped conditional in cleanup in r245752
David Blaikie [Tue, 25 Aug 2015 17:01:36 +0000 (17:01 +0000)]
Fix dropped conditional in cleanup in r245752

Code review feedback by Charlie Turner.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@245954 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoThe patch replace the overflow check in loop vectorization with the minimum loop...
Wei Mi [Tue, 25 Aug 2015 16:43:47 +0000 (16:43 +0000)]
The patch replace the overflow check in loop vectorization with the minimum loop iterations check.

The loop minimum iterations check below ensures the loop has enough trip count so the generated
vector loop will likely be executed, and it covers the overflow check.

Differential Revision: http://reviews.llvm.org/D12107.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@245952 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agomake fast unaligned memory accesses implicit with SSE4.2 or SSE4a
Sanjay Patel [Tue, 25 Aug 2015 16:29:21 +0000 (16:29 +0000)]
make fast unaligned memory accesses implicit with SSE4.2 or SSE4a

This is a follow-on from the discussion in http://reviews.llvm.org/D12154.

This change allows memset/memcpy to use SSE or AVX memory accesses for any chip that has
generally fast unaligned memory ops.

A motivating use case for this change is a clang invocation that doesn't explicitly set
the CPU, but does target a feature that we know only exists on a CPU that supports fast
unaligned memops. For example:
$ clang -O1 foo.c -mavx

This resolves a difference in lowering noted in PR24449:
https://llvm.org/bugs/show_bug.cgi?id=24449

Before this patch, we used different store types depending on whether the example can be
lowered as a memset or not.

Differential Revision: http://reviews.llvm.org/D12288

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@245950 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago[lit] Speculatively fix PR24554 by manually closing the process handle
Reid Kleckner [Tue, 25 Aug 2015 16:07:06 +0000 (16:07 +0000)]
[lit] Speculatively fix PR24554 by manually closing the process handle

My theory is that somehow Python's refcounting and GC strategy isn't
closing the subprocess handle in a timely fashion.  This accesses the
private '_handle' field of the Popen object, but I see no other way to
do this. If this doesn't address the problem on the sanitizer-windows
buildbot, we can revert this change. If it does, then let's keep the
hack.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@245946 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago[cmake] Pass /manifest:no to the linker when asan is enabled
Reid Kleckner [Tue, 25 Aug 2015 16:06:40 +0000 (16:06 +0000)]
[cmake] Pass /manifest:no to the linker when asan is enabled

This is a workaround for PR24476.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@245945 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoConvert SampleProfile pass into a Module pass.
Diego Novillo [Tue, 25 Aug 2015 15:25:11 +0000 (15:25 +0000)]
Convert SampleProfile pass into a Module pass.

Eventually, we will need sample profiles to be incorporated into the
inliner's cost models.  To do this, we need the sample profile pass to
be a module pass.

This patch makes no functional changes beyond the mechanical adjustments
needed to run SampleProfile as a module pass.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@245940 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago[MachO] Introduce MinVersion API.
Davide Italiano [Tue, 25 Aug 2015 15:02:23 +0000 (15:02 +0000)]
[MachO] Introduce MinVersion API.

While introducing support for MinVersionLoadCommand in llvm-readobj I noticed there's
no API to extract Major/Minor/Update components conveniently. Currently consumers
do the bit twiddling on their own, but this will change from now on.

I'll convert llvm-objdump (and llvm-readobj) in a later commit.

Differential Revision:  http://reviews.llvm.org/D12282
Reviewed by: rafael

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@245938 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago[X86] Remove references to _ftol2
Michael Kuperstein [Tue, 25 Aug 2015 07:58:33 +0000 (07:58 +0000)]
[X86] Remove references to _ftol2

As of r245924, _ftol2 is no longer used for fptoui on MS platforms.
Remove the dead code associated with it.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@245925 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago[X86] Fix fptoui conversions
Michael Kuperstein [Tue, 25 Aug 2015 07:42:09 +0000 (07:42 +0000)]
[X86] Fix fptoui conversions

This fixes two issues in x86 fptoui lowering.
1) Makes conversions from f80 go through the right path on AVX-512.
2) Implements an inline sequence for fptoui i64 instead of a library
call. This improves performance by 6X on SSE3+ and 3X otherwise.
Incidentally, it also removes the use of ftol2 for fptoui, which was
wrong to begin with, as ftol2 converts to a signed i64, producing
wrong results for values >= 2^63.

Patch by: mitch.l.bodart@intel.com
Differential Revision: http://reviews.llvm.org/D11316

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@245924 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoPass function attributes instead of boolean in isIntDivCheap().
Steve King [Tue, 25 Aug 2015 02:31:21 +0000 (02:31 +0000)]
Pass function attributes instead of boolean in isIntDivCheap().

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@245921 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoassume.ll test fixup
Piotr Padlewski [Tue, 25 Aug 2015 01:48:49 +0000 (01:48 +0000)]
assume.ll test fixup

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@245920 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoAssume intrinsic handling in global opt
Piotr Padlewski [Tue, 25 Aug 2015 01:34:15 +0000 (01:34 +0000)]
Assume intrinsic handling in global opt

It doesn't solve the problem, when for example we load something, and
then assume that it is the same as some constant value, because
globalopt will fail on unknown load instruction. The proposed solution
would be to skip some instructions that we can't evaluate and they are
safe to skip (f.e. load, assume and many others) and see if they are
required to perform optimization (f.e. we don't care about ephemeral
instructions that may appear using @llvm.assume())

http://reviews.llvm.org/D12266

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@245919 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoRevert "Fix LLVM C API for DataLayout"
Mehdi Amini [Tue, 25 Aug 2015 01:21:09 +0000 (01:21 +0000)]
Revert "Fix LLVM C API for DataLayout"

This reverts commit 433bfd94e4b7e3cc3f8b08f8513ce47817941b0c.
Broke some bot, have to see why it passed locally.

From: Mehdi Amini <mehdi.amini@apple.com>

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@245917 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoFix LLVM C API for DataLayout
Mehdi Amini [Tue, 25 Aug 2015 01:07:25 +0000 (01:07 +0000)]
Fix LLVM C API for DataLayout

We removed access to the DataLayout on the TargetMachine and
deprecated the C API function LLVMGetTargetMachineData() in r243114.
However the way I tried to be backward compatible was broken: I
changed the wrapper of the TargetMachine to be a structure that
includes the DataLayout as well. However the TargetMachine is also
wrapped by the ExecutionEngine, in the more classic way. A client
using the TargetMachine wrapped by the ExecutionEngine and trying
to get the DataLayout would break.

It seems tricky to solve the problem completely in the C API
implementation. This patch tries to address this backward
compatibility in a more lighter way in the C++ API. The C API is
restored in its original state and the removed C++ API is
reintroduced, but privately. The C API is friended to the
TargetMachine and should be the only consumer for this API.

Reviewers: ributzka

Differential Revision: http://reviews.llvm.org/D12263

From: Mehdi Amini <mehdi.amini@apple.com>

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@245916 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago[docs] Improvements to CMake.rst
Vedant Kumar [Tue, 25 Aug 2015 00:09:47 +0000 (00:09 +0000)]
[docs] Improvements to CMake.rst

- Fix some grammatical and typographical errors.
- Try to improve upon some awkward/nonstandard phrasings.
- Expand slightly the treatment of how you specify arguments to cmake.
- Update the list of possible LLVM_BUILD_TESTS and state where to find the
  definitive list.
- Correct the name of llvm-tblgen.
- Expand slightly the treatment of several build options, including
  LLVM_LIT_TOOLS_DIR, LLVM_ENABLE_FFI, and LLVM_EXTERNAL_project_SOURCE_DIR.

Patch by Brian R. Gaeke!

Differential Revision: http://reviews.llvm.org/D11862

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@245911 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago[PowerPC] PPCVSXFMAMutate should ignore trivial-copy addends
Hal Finkel [Mon, 24 Aug 2015 23:48:28 +0000 (23:48 +0000)]
[PowerPC] PPCVSXFMAMutate should ignore trivial-copy addends

We might end up with a trivial copy as the addend, and if so, we should ignore
the corresponding FMA instruction. The trivial copy can be coalesced away later,
so there's nothing to do here. We should not, however, assert. Fixes PR24544.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@245907 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoRevert r245355 "Release script: correctly symlink clang-tools-extra into the build...
Hans Wennborg [Mon, 24 Aug 2015 23:34:28 +0000 (23:34 +0000)]
Revert r245355 "Release script: correctly symlink clang-tools-extra into the build (PR22765)"

This worked with the CMake build but broke the Autoconf one.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@245902 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoTry to fix buildbots
Matthias Braun [Mon, 24 Aug 2015 23:30:39 +0000 (23:30 +0000)]
Try to fix buildbots

Apparently std::vector::erase(const_iterator) (as opposed to the
non-const iterator) is a part of C++11 but it seems this is not available
on all the buildbots.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@245900 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agofix typos; NFC
Sanjay Patel [Mon, 24 Aug 2015 23:20:16 +0000 (23:20 +0000)]
fix typos; NFC

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@245899 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoLet's try to fix GNU libstdc++ buildbots
Matthias Braun [Mon, 24 Aug 2015 23:19:39 +0000 (23:19 +0000)]
Let's try to fix GNU libstdc++ buildbots

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@245898 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agofix typo; NFC
Sanjay Patel [Mon, 24 Aug 2015 23:18:44 +0000 (23:18 +0000)]
fix typo; NFC

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@245896 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoMachineBasicBlock: Add liveins() method returning an iterator_range
Matthias Braun [Mon, 24 Aug 2015 22:59:52 +0000 (22:59 +0000)]
MachineBasicBlock: Add liveins() method returning an iterator_range

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@245895 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago[WebAssembly] DYNAMIC_STACKALLOC returns a pointer.
Dan Gohman [Mon, 24 Aug 2015 22:31:52 +0000 (22:31 +0000)]
[WebAssembly] DYNAMIC_STACKALLOC returns a pointer.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@245893 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoLTO: Simplify merged module ownership.
Peter Collingbourne [Mon, 24 Aug 2015 22:22:53 +0000 (22:22 +0000)]
LTO: Simplify merged module ownership.

This change moves LTOCodeGenerator's ownership of the merged module to a
field of type std::unique_ptr<Module>. This helps simplify parts of the code
and clears the way for the module to be consumed by LLVM CodeGen (see D12132
review comments).

Differential Revision: http://reviews.llvm.org/D12205

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@245891 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoWebAssembly: Implement call
JF Bastien [Mon, 24 Aug 2015 22:16:48 +0000 (22:16 +0000)]
WebAssembly: Implement call

Summary: Support function calls.

Reviewers: sunfish, sunfishcode

Subscribers: sunfishcode, jfb, llvm-commits

Differential revision: http://reviews.llvm.org/D12219

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@245887 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoRevert two bad commits.
JF Bastien [Mon, 24 Aug 2015 22:07:33 +0000 (22:07 +0000)]
Revert two bad commits.

Summary: I forgot to squash git commits before doing an svn dcommit of D12219. Reverting, and re-submitting.

Subscribers: jfb, llvm-commits

Differential Revision: http://reviews.llvm.org/D12298

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@245886 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoMissing print.
JF Bastien [Mon, 24 Aug 2015 22:00:04 +0000 (22:00 +0000)]
Missing print.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@245883 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agocall
JF Bastien [Mon, 24 Aug 2015 21:59:51 +0000 (21:59 +0000)]
call

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@245882 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago[X86][SSE] Added tests for zero-extension vector shuffles that don't extend starting...
Simon Pilgrim [Mon, 24 Aug 2015 21:28:13 +0000 (21:28 +0000)]
[X86][SSE] Added tests for zero-extension vector shuffles that don't extend starting from the 0'th lane.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@245878 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago[WebAssembly] Make the assembly printer indent instructions.
Dan Gohman [Mon, 24 Aug 2015 21:19:48 +0000 (21:19 +0000)]
[WebAssembly] Make the assembly printer indent instructions.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@245875 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoLTO: Rename mergedModule variables to MergedModule to prepare for ownership change.
Peter Collingbourne [Mon, 24 Aug 2015 21:15:35 +0000 (21:15 +0000)]
LTO: Rename mergedModule variables to MergedModule to prepare for ownership change.

Also convert a few loops to range-for loops and correct a comment.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@245874 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoReport an error if a SHT_SYMTAB_SHNDX section has the wrong size.
Rafael Espindola [Mon, 24 Aug 2015 21:09:41 +0000 (21:09 +0000)]
Report an error if a SHT_SYMTAB_SHNDX section has the wrong size.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@245873 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago[WebAssembly] CodeGen support for __builtin_wasm_page_size()
Dan Gohman [Mon, 24 Aug 2015 21:03:24 +0000 (21:03 +0000)]
[WebAssembly] CodeGen support for __builtin_wasm_page_size()

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@245872 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agofix typo; NFC
Sanjay Patel [Mon, 24 Aug 2015 20:11:14 +0000 (20:11 +0000)]
fix typo; NFC

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@245869 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago[PPC64LE] Fix PR24546 - Swap optimization and debug values
Bill Schmidt [Mon, 24 Aug 2015 19:27:27 +0000 (19:27 +0000)]
[PPC64LE] Fix PR24546 - Swap optimization and debug values

This patch fixes PR24546, which demonstrates a segfault during the VSX
swap removal pass.  The problem is that debug value instructions were
not excluded from the list of instructions to be analyzed for webs of
related computation.  I've added the test case from the PR as a crash
test in test/CodeGen/PowerPC.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@245862 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago[WebAssembly] Skeleton FastISel support
Dan Gohman [Mon, 24 Aug 2015 18:44:37 +0000 (18:44 +0000)]
[WebAssembly] Skeleton FastISel support

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@245860 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago[WebAssembly] Implement floating point rounding operators.
Dan Gohman [Mon, 24 Aug 2015 18:23:13 +0000 (18:23 +0000)]
[WebAssembly] Implement floating point rounding operators.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@245859 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago[docs][PerformanceTips] Framing the generic IR tips
Philip Reames [Mon, 24 Aug 2015 18:16:02 +0000 (18:16 +0000)]
[docs][PerformanceTips] Framing the generic IR tips

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@245858 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago[docs][PerformanceTips] Point people towards llvm-dev
Philip Reames [Mon, 24 Aug 2015 17:46:11 +0000 (17:46 +0000)]
[docs][PerformanceTips] Point people towards llvm-dev

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@245856 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago[docs] Further organization of the Performance Tips document
Philip Reames [Mon, 24 Aug 2015 17:38:58 +0000 (17:38 +0000)]
[docs] Further organization of the Performance Tips document

Arranging the language specific property section into readable groupings and adding a couple of notes about pass order, extensions, and the like.

For the record, suggestion for word smithing are welcomed.  I'm happy to revise; I'm just trying to get *something* in place.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@245855 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago[docs] Organize the 'Performance Tips' page
Philip Reames [Mon, 24 Aug 2015 17:19:18 +0000 (17:19 +0000)]
[docs] Organize the 'Performance Tips' page

This change just groups the suggestions by broad topic.  I'm planning a couple of follow on changes to improve the readability of this document.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@245854 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago[WebAssembly] Tell TargetTransformInfo about popcnt and sqrt.
Dan Gohman [Mon, 24 Aug 2015 16:51:46 +0000 (16:51 +0000)]
[WebAssembly] Tell TargetTransformInfo about popcnt and sqrt.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@245853 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago[WebAssembly] Use the checked form of MachineFunction::getSubtarget. NFC.
Dan Gohman [Mon, 24 Aug 2015 16:46:31 +0000 (16:46 +0000)]
[WebAssembly] Use the checked form of MachineFunction::getSubtarget. NFC.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@245852 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago[WebAssembly] Implement the is_zero_undef forms of cttz and ctlz
Dan Gohman [Mon, 24 Aug 2015 16:39:37 +0000 (16:39 +0000)]
[WebAssembly] Implement the is_zero_undef forms of cttz and ctlz

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@245851 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago[sanitizers] Add DFSan support for AArch64 42-bit VMA
Adhemerval Zanella [Mon, 24 Aug 2015 13:48:10 +0000 (13:48 +0000)]
[sanitizers] Add DFSan support for AArch64 42-bit VMA

This patch adds support for dfsan on aarch64-linux with 42-bit VMA
(current default config for 64K pagesize kernels).  The support is
enabled by defining the SANITIZER_AARCH64_VMA to 42 at build time
for both clang/llvm and compiler-rt.  The default VMA is 39 bits.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@245840 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago[X86] Add support for mmword memory operand size for Intel-syntax x86 assembly
Michael Zuckerman [Mon, 24 Aug 2015 10:26:54 +0000 (10:26 +0000)]
[X86] Add support for mmword memory operand size for Intel-syntax x86 assembly

Differential Revision: http://reviews.llvm.org/D12151

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@245835 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoAdd DAG optimisation for FP16_TO_FP
Oliver Stannard [Mon, 24 Aug 2015 09:47:45 +0000 (09:47 +0000)]
Add DAG optimisation for FP16_TO_FP

The FP16_TO_FP node only uses the bottom 16 bits of its input, so the
following pattern can be optimised by removing the AND:

  (FP16_TO_FP (AND op, 0xffff)) -> (FP16_TO_FP op)

This is a common pattern for ARM targets when functions have __fp16
arguments, as they are passed as floats (so that they get passed in the
correct registers), but then bitcast and truncated to ignore the top 16
bits.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@245832 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago[ARM] Use AEABI helpers for i64 div and rem
Scott Douglass [Mon, 24 Aug 2015 09:17:18 +0000 (09:17 +0000)]
[ARM] Use AEABI helpers for i64 div and rem

Differential Revision: http://reviews.llvm.org/D12232

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@245830 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago[ARM] Refactor LowerDivRem before adding LowerREM (nfc)
Scott Douglass [Mon, 24 Aug 2015 09:17:11 +0000 (09:17 +0000)]
[ARM] Refactor LowerDivRem before adding LowerREM (nfc)

Differential Revision: http://reviews.llvm.org/D12230

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@245829 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agofirst commit to llvm
Michael Zuckerman [Mon, 24 Aug 2015 07:48:50 +0000 (07:48 +0000)]
first commit to llvm

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@245825 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoRequire Dominator Tree For SROA, improve compile-time
Mehdi Amini [Sun, 23 Aug 2015 22:15:49 +0000 (22:15 +0000)]
Require Dominator Tree For SROA, improve compile-time

TL-DR: SROA is followed by EarlyCSE which requires the DominatorTree.
There is no reason not to require it up-front for SROA.

Some history is necessary to understand why we ended-up here.

r123437 switched the second (Legacy)SROA in the optimizer pipeline to
use SSAUpdater in order to avoid recomputing the costly
DominanceFrontier. The purpose was to speed-up the compile-time.

Later r123609 removed the need for the DominanceFrontier in
(Legacy)SROA.

Right after, some cleanup was made in r123724 to remove any reference
to the DominanceFrontier. SROA existed in two flavors: SROA_SSAUp and
SROA_DT (the latter replacing SROA_DF).
The second argument of `createScalarReplAggregatesPass` was renamed
from `UseDomFrontier` to `UseDomTree`.
I believe this is were a mistake was made. The pipeline was not
updated and the call site was still:
    PM->add(createScalarReplAggregatesPass(-1, false));

At that time, SROA was immediately followed in the pipeline by
EarlyCSE which required alread the DominatorTree. Not requiring
the DominatorTree in SROA didn't save anything, but unfortunately
it was lost at this point.

When the new SROA Pass was introduced in r163965, I believe the goal
was to have an exact replacement of the existing SROA, this bug
slipped through.

You can see currently:

$ echo "" | clang -x c++  -O3 -c - -mllvm -debug-pass=Structure
...
...
      FunctionPass Manager
        SROA
        Dominator Tree Construction
        Early CSE

After this patch:

$ echo "" | clang -x c++  -O3 -c - -mllvm -debug-pass=Structure
...
...
      FunctionPass Manager
        Dominator Tree Construction
        SROA
        Early CSE

This improves the compile time from 88s to 23s for PR17855.
https://llvm.org/bugs/show_bug.cgi?id=17855

And from 113s to 12s for PR16756
https://llvm.org/bugs/show_bug.cgi?id=16756

Reviewers: chandlerc

Differential Revision: http://reviews.llvm.org/D12267

From: Mehdi Amini <mehdi.amini@apple.com>

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@245820 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoremove FIXME; fixed by r245733
Sanjay Patel [Sun, 23 Aug 2015 20:43:25 +0000 (20:43 +0000)]
remove FIXME; fixed by r245733

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@245819 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago[IR] Cleanup EH instructions a little bit
David Majnemer [Sun, 23 Aug 2015 19:22:31 +0000 (19:22 +0000)]
[IR] Cleanup EH instructions a little bit

Just a cosmetic change, no functionality change is intended.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@245818 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago[DAGCombiner] Fold CONCAT_VECTORS of bitcasted EXTRACT_SUBVECTOR
Simon Pilgrim [Sun, 23 Aug 2015 15:22:14 +0000 (15:22 +0000)]
[DAGCombiner] Fold CONCAT_VECTORS of bitcasted EXTRACT_SUBVECTOR

Minor generalization of D12125 - peek through any bitcast to the original vector that we're extracting from.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@245814 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago[llvm-readobj/ELF] Factor out common code.
Davide Italiano [Sun, 23 Aug 2015 14:06:40 +0000 (14:06 +0000)]
[llvm-readobj/ELF] Factor out common code.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@245813 91177308-0d34-0410-b5e6-96231b3b80d8