oota-llvm.git
9 years ago[InterleavedAccess] Add a pass InterleavedAccess to identify interleaved memory acces...
Hao Liu [Fri, 26 Jun 2015 02:10:27 +0000 (02:10 +0000)]
[InterleavedAccess] Add a pass InterleavedAccess to identify interleaved memory accesses and transform into target specific intrinsics.

E.g. An interleaved load (Factor = 2):
        %wide.vec = load <8 x i32>, <8 x i32>* %ptr
        %v0 = shuffle <8 x i32> %wide.vec, <8 x i32> undef, <0, 2, 4, 6>
        %v1 = shuffle <8 x i32> %wide.vec, <8 x i32> undef, <1, 3, 5, 7>
It can be transformed into a ld2 intrinsic in AArch64 backend or a vld2 intrinsic in ARM backend.

E.g. An interleaved store (Factor = 3):
        %i.vec = shuffle <8 x i32> %v0, <8 x i32> %v1, <0, 4, 8, 1, 5, 9, 2, 6, 10, 3, 7, 11>
        store <12 x i32> %i.vec, <12 x i32>* %ptr
It can be transformed into a st3 intrinsic in AArch64 backend or a vst3 intrinsic in ARM backend.

Differential Revision: http://reviews.llvm.org/D10533

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@240751 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoAsmPrinter: More explicitly scope iterator for MSVC
Duncan P. N. Exon Smith [Fri, 26 Jun 2015 00:53:44 +0000 (00:53 +0000)]
AsmPrinter: More explicitly scope iterator for MSVC

r240748 seems to be on the right path.  Be more explicit.

http://lab.llvm.org:8011/builders/clang-x64-ninja-win7/builds/1961/

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@240750 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoAsmPrinter: Explicitly scope iterator for MSVC
Duncan P. N. Exon Smith [Fri, 26 Jun 2015 00:41:53 +0000 (00:41 +0000)]
AsmPrinter: Explicitly scope iterator for MSVC

Try to placate bots by explicitly scoping a conversion constructor from
`iterator` to `const_iterator`.

http://lab.llvm.org:8011/builders/sanitizer-windows/builds/5931/

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@240748 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoRevert "X86: Reject register operands with obvious type mismatches."
Matthias Braun [Fri, 26 Jun 2015 00:26:49 +0000 (00:26 +0000)]
Revert "X86: Reject register operands with obvious type mismatches."

Revert until http://llvm.org/PR23955 is investigated.

This reverts commit r239309.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@240746 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoFix mismatched architectures in test
Matthias Braun [Fri, 26 Jun 2015 00:26:46 +0000 (00:26 +0000)]
Fix mismatched architectures in test

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@240745 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoaad/fix labels in test/CodeGen/X86/StackColoring.ll
Matthias Braun [Fri, 26 Jun 2015 00:26:44 +0000 (00:26 +0000)]
aad/fix labels in test/CodeGen/X86/StackColoring.ll

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@240744 91177308-0d34-0410-b5e6-96231b3b80d8

9 years ago[ASan] Use llvm::getDISubprogram() to get function entry debug location.
Alexey Samsonov [Fri, 26 Jun 2015 00:00:47 +0000 (00:00 +0000)]
[ASan] Use llvm::getDISubprogram() to get function entry debug location.

It can be more robust than copying debug info from first non-alloca
instruction in the entry basic block. We use the same strategy in
coverage instrumentation.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@240738 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoAsmPrinter: Use an intrusively linked list for DIE::Children
Duncan P. N. Exon Smith [Thu, 25 Jun 2015 23:52:10 +0000 (23:52 +0000)]
AsmPrinter: Use an intrusively linked list for DIE::Children

Replace the `std::vector<>` for `DIE::Children` with an intrusively
linked list.  This is a strict memory improvement: it requires no
auxiliary storage, and reduces `sizeof(DIE)` by one pointer.  It also
factors out the DIE-related malloc traffic.

This drops llc memory usage from 735 MB down to 718 MB, or ~2.3%.

(I'm looking at `llc` memory usage on `verify-uselistorder.lto.opt.bc`;
see r236629 for details.)

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@240736 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoAsmPrinter: Convert DIE::Values to a linked list
Duncan P. N. Exon Smith [Thu, 25 Jun 2015 23:46:41 +0000 (23:46 +0000)]
AsmPrinter: Convert DIE::Values to a linked list

Change `DIE::Values` to a singly linked list, where each node is
allocated on a `BumpPtrAllocator`.  In order to support `push_back()`,
the list is circular, and points at the tail element instead of the
head.  I abstracted the core list logic out to `IntrusiveBackList` so
that it can be reused for `DIE::Children`, which also cares about
`push_back()`.

This drops llc memory usage from 799 MB down to 735 MB, about 8%.

(I'm looking at `llc` memory usage on `verify-uselistorder.lto.opt.bc`;
see r236629 for details.)

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@240733 91177308-0d34-0410-b5e6-96231b3b80d8

9 years ago[ELF] Move ELF{32,64}{L,B}E typedefs to llvm.
Michael J. Spencer [Thu, 25 Jun 2015 23:41:23 +0000 (23:41 +0000)]
[ELF] Move ELF{32,64}{L,B}E typedefs to llvm.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@240731 91177308-0d34-0410-b5e6-96231b3b80d8

9 years ago[ELF] Add some accessors for lld.
Michael J. Spencer [Thu, 25 Jun 2015 23:40:41 +0000 (23:40 +0000)]
[ELF] Add some accessors for lld.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@240730 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoMake llvm-dwarfdump exit with non-zero exit code if error was occured.
Alexey Samsonov [Thu, 25 Jun 2015 23:40:15 +0000 (23:40 +0000)]
Make llvm-dwarfdump exit with non-zero exit code if error was occured.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@240729 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoPPCISelLowering.cpp: Appease PR23956. [-Wdocumentation]
NAKAMURA Takumi [Thu, 25 Jun 2015 23:38:44 +0000 (23:38 +0000)]
PPCISelLowering.cpp: Appease PR23956. [-Wdocumentation]

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@240727 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoSplit test up into two target-spcific directories.
Adrian Prantl [Thu, 25 Jun 2015 23:38:22 +0000 (23:38 +0000)]
Split test up into two target-spcific directories.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@240726 91177308-0d34-0410-b5e6-96231b3b80d8

9 years ago[asan] Do not instrument special purpose LLVM sections.
Anna Zaks [Thu, 25 Jun 2015 23:35:48 +0000 (23:35 +0000)]
[asan] Do not instrument special purpose LLVM sections.

Do not instrument globals that are placed in sections containing "__llvm"
in their name.

This fixes a bug in ASan / PGO interoperability. ASan interferes with LLVM's
PGO, which places its globals into a special section, which is memcpy-ed by
the linker as a whole. When those goals are instrumented, ASan's memcpy wrapper
reports an issue.

http://reviews.llvm.org/D10541

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@240723 91177308-0d34-0410-b5e6-96231b3b80d8

9 years ago[asan] Don't run stack malloc on functions containing inline assembly.
Anna Zaks [Thu, 25 Jun 2015 23:35:45 +0000 (23:35 +0000)]
[asan] Don't run stack malloc on functions containing inline assembly.

It makes LLVM run out of registers even on 64-bit platforms. For example, the
following test case fails on darwin.

clang -cc1 -O0 -triple x86_64-apple-macosx10.10.0 -emit-obj -fsanitize=address -mstackrealign -o ~/tmp/ex.o -x c ex.c
error: inline assembly requires more registers than available

void TestInlineAssembly(const unsigned char *S, unsigned int pS, unsigned char *D, unsigned int pD, unsigned int h) {

unsigned int sr = 4, pDiffD = pD - 5;
unsigned int pDiffS = (pS << 1) - 5;
char flagSA = ((pS & 15) == 0),
flagDA = ((pD & 15) == 0);
asm volatile (
  "mov %0,  %%"PTR_REG("si")"\n"
  "mov %2,  %%"PTR_REG("cx")"\n"
  "mov %1,  %%"PTR_REG("di")"\n"
  "mov %8,  %%"PTR_REG("ax")"\n"
  :
  : "m" (S), "m" (D), "m" (pS), "m" (pDiffS), "m" (pDiffD), "m" (sr), "m" (flagSA), "m" (flagDA), "m" (h)
  : "%"PTR_REG("si"), "%"PTR_REG("di"), "%"PTR_REG("ax"), "%"PTR_REG("cx"), "%"PTR_REG("dx"), "memory"
);
}

http://reviews.llvm.org/D10719

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@240722 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoDebug Info: Add basic test coverage for the DWARF encoding of bitfields.
Adrian Prantl [Thu, 25 Jun 2015 23:19:19 +0000 (23:19 +0000)]
Debug Info: Add basic test coverage for the DWARF encoding of bitfields.

While looking at a couple of bugs in the debug info output for bitfields
I noticed that there wasn't a single regression test to test my changes
against, so here's a start.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@240717 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoDAGCombiner: Use pop_back_val()
Matt Arsenault [Thu, 25 Jun 2015 22:15:05 +0000 (22:15 +0000)]
DAGCombiner: Use pop_back_val()

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@240709 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoAdd an ELFSymbolRef type.
Rafael Espindola [Thu, 25 Jun 2015 22:10:04 +0000 (22:10 +0000)]
Add an ELFSymbolRef type.

This allows user code to say Sym.getSize() instead of having to manually fetch
the object.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@240708 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoIAS: Use the root macro instanciation for location
Frederic Riss [Thu, 25 Jun 2015 21:57:33 +0000 (21:57 +0000)]
IAS: Use the root macro instanciation for location

r224810 fixed the handling of macro debug locations in AsmParser. This patch
fixes the logic to actually do what was intended: it uses the first macro of
the macro stack instead of the last one. The updated testcase shows that the
current scheme doesn't work when macro instanciations are nested and multiple
files are used.

Reviewers: compnerd

Differential Revision: http://reviews.llvm.org/D10463

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@240705 91177308-0d34-0410-b5e6-96231b3b80d8

9 years ago[Object][ELF] Add support for dumping dynamic relocations when sections are stripped.
Michael J. Spencer [Thu, 25 Jun 2015 21:47:32 +0000 (21:47 +0000)]
[Object][ELF] Add support for dumping dynamic relocations when sections are stripped.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@240703 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agodsymutil: Split out patchStmtList(), NFC
Duncan P. N. Exon Smith [Thu, 25 Jun 2015 21:42:46 +0000 (21:42 +0000)]
dsymutil: Split out patchStmtList(), NFC

Split out code to patch up the `DW_AT_stmt_list` for the cloned DIE, and
reorganize it so that it doesn't depend on `DIE::values_begin()` and
`DIE::values_end()` (which I'm trying to kill off).

David Blaikie and I talked about adding a range-algorithm version of
`std::find_if()`, but the assertion *still* required getting at the end
iterator.  IMO, a separate helper function with an early return is
easier to reason about here.

A follow-up commit that removes `DIE::setValue()` and mutates the
`DIEValue` directly is coming shortly.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@240701 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agofix typos; NFC
Sanjay Patel [Thu, 25 Jun 2015 21:11:08 +0000 (21:11 +0000)]
fix typos; NFC

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@240699 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agollvm-nm: Don't print mapping symbols.
Rafael Espindola [Thu, 25 Jun 2015 21:00:51 +0000 (21:00 +0000)]
llvm-nm: Don't print mapping symbols.

This matches the behavior of gnu nm. Fixes pr23930.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@240695 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoUse foreach loop over constant operands. NFC.
Pete Cooper [Thu, 25 Jun 2015 20:51:38 +0000 (20:51 +0000)]
Use foreach loop over constant operands.  NFC.

A number of places had explicit loops over Constant::operands().
Just use foreach loops where possible.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@240694 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoWe don't need the targets to read objects.
Rafael Espindola [Thu, 25 Jun 2015 20:20:19 +0000 (20:20 +0000)]
We don't need the targets to read objects.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@240684 91177308-0d34-0410-b5e6-96231b3b80d8

9 years ago[InstCombine] call SimplifyICmpInst with correct context
Jingyue Wu [Thu, 25 Jun 2015 20:14:47 +0000 (20:14 +0000)]
[InstCombine] call SimplifyICmpInst with correct context

Summary:
Fixes PR23809. Without passing the context to SimplifyICmpInst, we would
use the assume to prove that the condition feeding the assume is
trivially true (see isValidAssumeForContext in ValueTracking.cpp),
causing the removal of the assume which may be useful for later
optimizations.

Test Plan: pr23800.ll

Reviewers: hfinkel, majnemer

Reviewed By: hfinkel

Subscribers: henryhu, llvm-commits, wengxt, broune, meheff, eliben

Differential Revision: http://reviews.llvm.org/D10695

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@240683 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoDiagnose undefined temporary symbols.
Rafael Espindola [Thu, 25 Jun 2015 20:10:45 +0000 (20:10 +0000)]
Diagnose undefined temporary symbols.

We already disallowed

.global .Lfoo

so this is reasonable.

This is a small cherry pick from r240130.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@240681 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoMake this test verify .debug_pubnames is actually missing.
Paul Robinson [Thu, 25 Jun 2015 19:37:13 +0000 (19:37 +0000)]
Make this test verify .debug_pubnames is actually missing.
It was matching at EOF regardless of whether the section was present.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@240679 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoRangify for loop in Inliner.cpp. NFC.
Yaron Keren [Thu, 25 Jun 2015 19:28:24 +0000 (19:28 +0000)]
Rangify for loop in Inliner.cpp. NFC.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@240678 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoAdd Arg::getValues method with const 'this' and const result
Douglas Katzman [Thu, 25 Jun 2015 18:48:26 +0000 (18:48 +0000)]
Add Arg::getValues method with const 'this' and const result

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@240673 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoDAGCombiner: Remove redundant check
Matt Arsenault [Thu, 25 Jun 2015 18:47:02 +0000 (18:47 +0000)]
DAGCombiner: Remove redundant check

MemIntrinsicSDNode is already a subclass of MemSDNode,
so the MemSDNode check is sufficient.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@240672 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoGVN: If a branch has two identical successors, we cannot declare either dead.
Peter Collingbourne [Thu, 25 Jun 2015 18:32:02 +0000 (18:32 +0000)]
GVN: If a branch has two identical successors, we cannot declare either dead.

This previously caused miscompilations as a result of phi nodes receiving
undef incoming values from blocks dominated by such successors.

Differential Revision: http://reviews.llvm.org/D10726

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@240670 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoAdd a test for a recent regression.
Rafael Espindola [Thu, 25 Jun 2015 16:16:08 +0000 (16:16 +0000)]
Add a test for a recent regression.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@240656 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agollvm-nm: print 'n' instead of '?'
Rafael Espindola [Thu, 25 Jun 2015 16:01:53 +0000 (16:01 +0000)]
llvm-nm: print 'n' instead of '?'

This matches gnu nm and has the advantage that there is a upper case N.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@240655 91177308-0d34-0410-b5e6-96231b3b80d8

9 years ago[PPC] Implement vmrgew and vmrgow instructions
Kit Barton [Thu, 25 Jun 2015 15:17:40 +0000 (15:17 +0000)]
[PPC] Implement vmrgew and vmrgow instructions

This patch adds support for the vector merge even word and vector merge odd word
instructions introduced in POWER8.

Phabricator review: http://reviews.llvm.org/D10704

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@240650 91177308-0d34-0410-b5e6-96231b3b80d8

9 years ago[AsmPrinter] Fix crash in handleIndirectSymViaGOTPCRel
Bruno Cardoso Lopes [Thu, 25 Jun 2015 15:17:23 +0000 (15:17 +0000)]
[AsmPrinter] Fix crash in handleIndirectSymViaGOTPCRel

Check for symbols in MCValue before using them. Bail out early in case
they are null. This fixes PR23779.

Differential Revision: http://reviews.llvm.org/D10712

rdar://problem/21532830

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@240649 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoDoxygen-ify a few comments. NFC
Jonathan Roelofs [Thu, 25 Jun 2015 15:06:47 +0000 (15:06 +0000)]
Doxygen-ify a few comments. NFC

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@240647 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoUse computeSymbolSizes in llvm-symbolize.
Rafael Espindola [Thu, 25 Jun 2015 15:06:38 +0000 (15:06 +0000)]
Use computeSymbolSizes in llvm-symbolize.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@240646 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoUse range loop. NFC.
Rafael Espindola [Thu, 25 Jun 2015 15:00:38 +0000 (15:00 +0000)]
Use range loop. NFC.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@240645 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoModernize getELFDynamicSymbolIterators.
Rafael Espindola [Thu, 25 Jun 2015 14:39:35 +0000 (14:39 +0000)]
Modernize getELFDynamicSymbolIterators.

* Have it return a iterator_range.
* Remove the global function.
* Rename to getDynamicSymbolIterators.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@240644 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoDon't use std::make_unique.
Benjamin Kramer [Thu, 25 Jun 2015 13:47:36 +0000 (13:47 +0000)]
Don't use std::make_unique.

We still have to support C++11 standard libraries, make_unique is a C++14
feature.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@240642 91177308-0d34-0410-b5e6-96231b3b80d8

9 years ago[PPC] Replace debug value skipping with getLastNonDebugInstr.
Benjamin Kramer [Thu, 25 Jun 2015 13:39:03 +0000 (13:39 +0000)]
[PPC] Replace debug value skipping with getLastNonDebugInstr.

No functionality change intended.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@240641 91177308-0d34-0410-b5e6-96231b3b80d8

9 years ago[ORC] Add ObjectTransformLayer
Joseph Tremoulet [Thu, 25 Jun 2015 13:35:22 +0000 (13:35 +0000)]
[ORC] Add ObjectTransformLayer

Summary:
This is a utility for clients that want to insert a layer that modifies
each ObjectFile and then passes it along to the next layer.

Reviewers: lhames

Reviewed By: lhames

Subscribers: llvm-commits

Differential Revision: http://reviews.llvm.org/D10456

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@240640 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoReplace copy-pasted debug value skipping with MBB::getLastNonDebugInstr
Benjamin Kramer [Thu, 25 Jun 2015 13:28:24 +0000 (13:28 +0000)]
Replace copy-pasted debug value skipping with MBB::getLastNonDebugInstr

No functional change intended.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@240639 91177308-0d34-0410-b5e6-96231b3b80d8

9 years ago[mips] [IAS] Refactor the emitDirectiveModuleFP() functions. NFC.
Toma Tabacu [Thu, 25 Jun 2015 12:44:38 +0000 (12:44 +0000)]
[mips] [IAS] Refactor the emitDirectiveModuleFP() functions. NFC.

Summary:
Simplify emitDirectiveModuleFP() by having it just print the current information
from MipsABIFlagsSection and doing an updateABIInfo() before such calls.

This prevents us from forgetting to update the STI.FeatureBits,
because updateABIInfo() uses those to update the MipsABIFlagsSection object,
and also makes sure we use the update mechanism from MipsABIFlagsSection.

Reviewers: dsanders

Reviewed By: dsanders

Subscribers: llvm-commits, mpf

Differential Revision: http://reviews.llvm.org/D10642

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@240637 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoTake alignment into account in isSafeToLoadUnconditionally
Artur Pilipenko [Thu, 25 Jun 2015 12:18:43 +0000 (12:18 +0000)]
Take alignment into account in isSafeToLoadUnconditionally

Reviewed By: hfinkel

Differential Revision: http://reviews.llvm.org/D10475

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@240636 91177308-0d34-0410-b5e6-96231b3b80d8

9 years ago[SystemZ] Only attempt RxSBG optimization for integer types
Ulrich Weigand [Thu, 25 Jun 2015 11:52:36 +0000 (11:52 +0000)]
[SystemZ] Only attempt RxSBG optimization for integer types

As pointed out by Justin Bogner (see r240520), SystemZDAGToDAGISel::Select
currently attempts to convert boolean operations into RxSBG even on some
non-integer types (in particular, vector types).  This would not work in
any case, and it happened to trigger undefined behaviour in allOnes.

This patch verifies that we have a (<= 64-bit) integer type before
attempting to perform this optimization.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@240634 91177308-0d34-0410-b5e6-96231b3b80d8

9 years ago[mips] [IAS] Refactor the emitDirectiveModuleOddSPReg() functions. NFC.
Toma Tabacu [Thu, 25 Jun 2015 10:56:57 +0000 (10:56 +0000)]
[mips] [IAS] Refactor the emitDirectiveModuleOddSPReg() functions. NFC.

Summary:
We can simplify emitDirectiveModuleOddSPReg() by having it print the current OddSPReg information
from MipsABIFlagsSection and doing an updateABIInfo() before such calls.

This prevents us from forgetting to update the STI.FeatureBits, because updateABIInfo() uses those to update the MipsABIFlagsSection object,
and also makes sure we use the update mechanism from MipsABIFlagsSection.

Reviewers: dsanders

Reviewed By: dsanders

Subscribers: llvm-commits, mpf

Differential Revision: http://reviews.llvm.org/D10641

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@240630 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoAdd missing <array> include.
Pawel Bylica [Thu, 25 Jun 2015 10:47:08 +0000 (10:47 +0000)]
Add missing <array> include.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@240629 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoTeach LLVM about the PPC64 memory sanitizer implementation.
Jay Foad [Thu, 25 Jun 2015 10:34:29 +0000 (10:34 +0000)]
Teach LLVM about the PPC64 memory sanitizer implementation.

Summary:
This is the LLVM part of the PPC memory sanitizer implementation in
D10648.

Reviewers: kcc, samsonov, willschm, wschmidt, eugenis

Reviewed By: eugenis

Subscribers: llvm-commits

Differential Revision: http://reviews.llvm.org/D10649

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@240627 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoExpress APInt::{s,u}{l,g}e(uint64_t) in terms of APInt::{s,u}{l,g}t(uint64_t). NFC.
Pawel Bylica [Thu, 25 Jun 2015 10:23:52 +0000 (10:23 +0000)]
Express APInt::{s,u}{l,g}e(uint64_t) in terms of APInt::{s,u}{l,g}t(uint64_t). NFC.

This is preparation for http://reviews.llvm.org/D10655: Change APInt comparison with uint64_t.
Some unit tests added also.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@240626 91177308-0d34-0410-b5e6-96231b3b80d8

9 years ago[mips] [IAS] Fix parsing of memory offset expressions with parenthesis depth >1.
Toma Tabacu [Thu, 25 Jun 2015 09:52:02 +0000 (09:52 +0000)]
[mips] [IAS] Fix parsing of memory offset expressions with parenthesis depth >1.

Summary:
In an expression such as "(((a+b)+c)+d)", parseParenExpression() would only parse the "a+b)+c", which would result in an error later on in the parser.
This means that we can only parse one level of inner parentheses.

In order to fix this, I added a new function called parseParenExprOfDepth(), which parses a specified number of trailing parenthesis expressions
(except for the outermost parenthesis), and changed MipsAsmParser to use it in parseMemOffset instead of parseParenExpression().

Reviewers: dsanders, rafael

Reviewed By: dsanders, rafael

Subscribers: llvm-commits

Differential Revision: http://reviews.llvm.org/D9742

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@240625 91177308-0d34-0410-b5e6-96231b3b80d8

9 years ago[X86] Accept hasAVX512() as well as hasFMA() when generating FMA.
Ahmed Bougacha [Thu, 25 Jun 2015 00:44:46 +0000 (00:44 +0000)]
[X86] Accept hasAVX512() as well as hasFMA() when generating FMA.

We don't always have FMA, for example when using 'clang -mavx512f'
without an explicit CPU.

Also check for an explicit +avx512f instead of CPUs in a couple
related tests.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@240616 91177308-0d34-0410-b5e6-96231b3b80d8

9 years ago[X86] Cleanup fma tests a little bit. NFC.
Ahmed Bougacha [Thu, 25 Jun 2015 00:40:25 +0000 (00:40 +0000)]
[X86] Cleanup fma tests a little bit. NFC.

Reformat, isolate 213->231 xform, actually --check-prefix CHECK,
and deduplicate the FMA intrinsic tests (FMA3 in AMD-land).

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@240615 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoEnable StackMap Serialization for COFF
Swaroop Sridhar [Thu, 25 Jun 2015 00:28:42 +0000 (00:28 +0000)]
Enable StackMap Serialization for COFF

Summary

This change turns on the emission of
__LLVM_Stackmaps section when generating COFF binaries.

Test Plan

Added a scenario to the test case:
test\CodeGen\X86\statepoint-stackmap-format.ll.

Code Review:

http://reviews.llvm.org/D10680

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@240613 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agolibObject/COFF: Add a function to get pointers to relocation entries.
Rui Ueyama [Thu, 25 Jun 2015 00:07:39 +0000 (00:07 +0000)]
libObject/COFF: Add a function to get pointers to relocation entries.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@240610 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoAdd simplify_type<const WeakVH>; simplify IndVarSimplify
Duncan P. N. Exon Smith [Wed, 24 Jun 2015 22:23:21 +0000 (22:23 +0000)]
Add simplify_type<const WeakVH>; simplify IndVarSimplify

r240214 fixed some UB in IndVarSimplify, and it needed a temporary
`WeakVH` to do it.  Add `simplify_type<const WeakVH>` so that this
temporary isn't necessary.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@240599 91177308-0d34-0410-b5e6-96231b3b80d8

9 years ago[X86] Simplify some stuff in X86DisassemblerDecoder. NFC
Douglas Katzman [Wed, 24 Jun 2015 22:04:55 +0000 (22:04 +0000)]
[X86] Simplify some stuff in X86DisassemblerDecoder. NFC

- Deciding that insn->sibIndex is SIB_INDEX_NONE does not require another
check beyond the fully decoded bits being equal to 0x4.
The expression insn->sibIndex == SIB_INDEX_sib could not have been true unless
index were 0x4, because SIB_INDEX_sib is merely the range base (SIB_INDEX_EAX)
plus 4. Respectively SIB_INDEX_sib64.

- Don't use a switch statement to perform left-shift.

Differential Revision: http://reviews.llvm.org/D9762

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@240598 91177308-0d34-0410-b5e6-96231b3b80d8

9 years ago[GVN] Intersect the IR flags when CSE'ing two instructions
David Majnemer [Wed, 24 Jun 2015 21:52:25 +0000 (21:52 +0000)]
[GVN] Intersect the IR flags when CSE'ing two instructions

We performed a simple, but incomplete, intersection when it came time to
CSE instructions.  It didn't handle, for example, the 'exact' flag.

This fixes PR23922.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@240595 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoSpelling fixes in comments.
Douglas Katzman [Wed, 24 Jun 2015 21:46:53 +0000 (21:46 +0000)]
Spelling fixes in comments.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@240594 91177308-0d34-0410-b5e6-96231b3b80d8

9 years ago[Reassociate] Don't propogate flags when creating negations
David Majnemer [Wed, 24 Jun 2015 21:27:36 +0000 (21:27 +0000)]
[Reassociate] Don't propogate flags when creating negations

Reassociate mutated existing instructions in order to form negations
which would create additional reassociate opportunities.

This fixes PR23926.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@240593 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agofix typos; NFC
Sanjay Patel [Wed, 24 Jun 2015 20:42:33 +0000 (20:42 +0000)]
fix typos; NFC

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@240592 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agodon't repeat function names in comments; NFC
Sanjay Patel [Wed, 24 Jun 2015 20:40:57 +0000 (20:40 +0000)]
don't repeat function names in comments; NFC

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@240591 91177308-0d34-0410-b5e6-96231b3b80d8

9 years ago[If Converter] Convert recursion to iteration.
Akira Hatanaka [Wed, 24 Jun 2015 20:34:35 +0000 (20:34 +0000)]
[If Converter] Convert recursion to iteration.

This commit makes changes to IfConverter::AnalyzeBlock to use iteration instead
of recursion. Previously, this function would get called recursively a large
number of times and eventually segfault when a function with the following CFG
was compiled:

BB0:
 if (condition0)
  goto BB1
 goto BB2
BB1:
 goto BB2
BB2:
 if (condition1)
  goto BB3
 goto BB4
BB3:
...
(repeat until BB7488)

rdar://problem/21386145

Differential Revision: http://reviews.llvm.org/D10587

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@240589 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoDevirtualize Instruction::clone_impl
Pete Cooper [Wed, 24 Jun 2015 20:22:23 +0000 (20:22 +0000)]
Devirtualize Instruction::clone_impl

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@240588 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoAdd NVPTXPeephole pass to reduce unnecessary address cast
Jingyue Wu [Wed, 24 Jun 2015 20:20:16 +0000 (20:20 +0000)]
Add NVPTXPeephole pass to reduce unnecessary address cast

Summary:
This patch first change the register that holds local address for stack
frame to %SPL. Then the new NVPTXPeephole pass will try to scan the
following pattern

   %vreg0<def> = LEA_ADDRi64 <fi#0>, 4
   %vreg1<def> = cvta_to_local %vreg0

and transform it into

   %vreg1<def> = LEA_ADDRi64 %VRFrameLocal, 4

Patched by Xuetian Weng

Test Plan: test/CodeGen/NVPTX/local-stack-frame.ll

Reviewers: jholewinski, jingyue

Reviewed By: jingyue

Subscribers: eliben, jholewinski, llvm-commits

Differential Revision: http://reviews.llvm.org/D10549

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@240587 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agofix typos; NFC
Sanjay Patel [Wed, 24 Jun 2015 20:07:50 +0000 (20:07 +0000)]
fix typos; NFC

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@240585 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoRevert "(HEAD -> master, origin/master, origin/HEAD) opt: Add option to strip or...
Matthias Braun [Wed, 24 Jun 2015 20:04:26 +0000 (20:04 +0000)]
Revert "(HEAD -> master, origin/master, origin/HEAD) opt: Add option to strip or add llvm value names"

Accidental commit

This reverts commit r240583.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@240584 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoopt: Add option to strip or add llvm value names
Matthias Braun [Wed, 24 Jun 2015 20:03:33 +0000 (20:03 +0000)]
opt: Add option to strip or add llvm value names

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@240583 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoARMLoadStoreOptimizer: Fix errata 602117 handling and make testcase actually test...
Matthias Braun [Wed, 24 Jun 2015 20:03:27 +0000 (20:03 +0000)]
ARMLoadStoreOptimizer: Fix errata 602117 handling and make testcase actually test for it

This fixes PR23912

Differential Revision: http://reviews.llvm.org/D10620

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@240582 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoMake computeSymbolSizes never fail.
Rafael Espindola [Wed, 24 Jun 2015 19:57:32 +0000 (19:57 +0000)]
Make computeSymbolSizes never fail.

On ELF that was already the case since getting the size of a symbol
never fails.

On MachO and COFF we could fail trying to get the section of a symbol. But
we don't really need the section, just the section number to know if two
symbols are in the same section or not.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@240580 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoMIR Serialization: Serialize simple MachineRegisterInfo attributes.
Alex Lorenz [Wed, 24 Jun 2015 19:56:10 +0000 (19:56 +0000)]
MIR Serialization: Serialize simple MachineRegisterInfo attributes.

This commit serializes the 3 scalar boolean attributes from the
MachineRegisterInfo class: IsSSA, TracksRegLiveness, and
TracksSubRegLiveness. These attributes are serialized as part
of the machine function YAML mapping.

Reviewers: Duncan P. N. Exon Smith

Differential Revision: http://reviews.llvm.org/D10618

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@240579 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoUse Symbol::getValue to simplify object::computeSymbolSizes. NFC.
Rafael Espindola [Wed, 24 Jun 2015 19:32:52 +0000 (19:32 +0000)]
Use Symbol::getValue to simplify object::computeSymbolSizes. NFC.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@240575 91177308-0d34-0410-b5e6-96231b3b80d8

9 years ago[LSR] canonicalize Prod*(1<<C) to Prod<<C
Jingyue Wu [Wed, 24 Jun 2015 19:28:40 +0000 (19:28 +0000)]
[LSR] canonicalize Prod*(1<<C) to Prod<<C

Summary:
Because LSR happens at a late stage where mul of a power of 2 is
typically canonicalized to shl, this canonicalization emits code that
can be better CSE'ed.

Test Plan:
Transforms/LoopStrengthReduce/shl.ll shows how this change makes GVN more
powerful. Fixes some existing tests due to this change.

Reviewers: sanjoy, majnemer, atrick

Reviewed By: majnemer, atrick

Subscribers: majnemer, llvm-commits

Differential Revision: http://reviews.llvm.org/D10448

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@240573 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoUse Symbol.getValue to simplify RuntimeDyldCOFF::getSymbolOffset. NFC.
Rafael Espindola [Wed, 24 Jun 2015 19:27:53 +0000 (19:27 +0000)]
Use Symbol.getValue to simplify RuntimeDyldCOFF::getSymbolOffset. NFC.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@240572 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoAdd a SymbolRef::getValue.
Rafael Espindola [Wed, 24 Jun 2015 19:11:10 +0000 (19:11 +0000)]
Add a SymbolRef::getValue.

This returns either the symbol offset or address. Since it is not defined which
one, it never has to lookup the section and so never fails.

I will add users in the next commit.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@240569 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoDevirtualize Constant::replaceUsesOfWithOnConstant.
Pete Cooper [Wed, 24 Jun 2015 18:55:24 +0000 (18:55 +0000)]
Devirtualize Constant::replaceUsesOfWithOnConstant.

This is part of the work to devirtualize Value.

The old pattern was to call replaceUsesOfWithOnConstant which was overridden by
subclasses.  Those could then call replaceUsesOfWithOnConstantImpl on Constant
to handle deleting the current value.

To be consistent with other parts of the code, this has been changed so that we
call the method on Constant, and that dispatches to an Impl on subclasses.

As part of this, it made sense to rename the methods to be more descriptive.  The
new name is Constant::handleOperandChange, and it requires that all subclasses of
Constant implement handleOperandChangeImpl, even if they just throw an error if
they shouldn't be called.

Reviewed by Duncan Exon Smith.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@240567 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoAsmPrinter: Cleanup DIEValue::EmitValue() API, NFC
Duncan P. N. Exon Smith [Wed, 24 Jun 2015 18:48:11 +0000 (18:48 +0000)]
AsmPrinter: Cleanup DIEValue::EmitValue() API, NFC

Stop taking a `dwarf::Form` in `DIEValue::EmitValue()` and
`DIEValue::SizeOf()`, since they're always passed `DIEValue::getForm()`
anyway.  This is just left over from when `DIEValue` didn't know its own
form.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@240566 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoRefactor duplicated code. NFC.
Rafael Espindola [Wed, 24 Jun 2015 18:14:41 +0000 (18:14 +0000)]
Refactor duplicated code. NFC.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@240563 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoObject: Add XFAILed test case for r239560.
Peter Collingbourne [Wed, 24 Jun 2015 18:03:39 +0000 (18:03 +0000)]
Object: Add XFAILed test case for r239560.

We ought to also emit unmangled references to dllimported functions,
but no existing linker needs this.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@240562 91177308-0d34-0410-b5e6-96231b3b80d8

9 years ago[CaptureTracking] Avoid long compilation time on large basic blocks
Bruno Cardoso Lopes [Wed, 24 Jun 2015 17:53:17 +0000 (17:53 +0000)]
[CaptureTracking] Avoid long compilation time on large basic blocks

CaptureTracking becomes very expensive in large basic blocks while
calling PointerMayBeCaptured. PointerMayBeCaptured scans the BB the
number of times equal to the number of uses of 'BeforeHere', which is
currently capped at 20 and bails out with Tracker->tooManyUses().

The bottleneck here is the number of calls to PointerMayBeCaptured * the
basic block scan. In a testcase with a 82k instruction BB,
PointerMayBeCaptured is called 130k times, leading to 'shouldExplore'
taking 527k runs, this currently takes ~12min.

To fix this we locally (within PointerMayBeCaptured) number the
instructions in the basic block using a DenseMap to cache instruction
positions/numbers. We build the cache incrementally every time we need
to scan an unexplored part of the BB, improving compile time to only
take ~2min.

This triggers in the flow: DeadStoreElimination -> MepDepAnalysis ->
CaptureTracking.

Side note: after multiple runs in the test-suite I've seen no
performance nor compile time regressions, but could note a couple of
compile time improvements:

Performance Improvements - Compile Time Delta Previous  Current StdDev
SingleSource/Benchmarks/Misc-C++/bigfib -4.48%  0.8547  0.8164  0.0022
MultiSource/Benchmarks/TSVC/LoopRerolling-dbl/LoopRerolling-dbl -1.47% 1.3912  1.3707  0.0056

Differential Revision: http://reviews.llvm.org/D7010

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@240560 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoMIR Serialization: Serialize the null register operands.
Alex Lorenz [Wed, 24 Jun 2015 17:34:58 +0000 (17:34 +0000)]
MIR Serialization: Serialize the null register operands.

This commit serializes the null register machine operands.
It uses the '_' keyword to represent them, but the parser
also allows the '%noreg' named register syntax.

Reviewers: Duncan P. N. Exon Smith

Differential Revision: http://reviews.llvm.org/D10580

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@240558 91177308-0d34-0410-b5e6-96231b3b80d8

9 years ago[LoopVectorizer] Fix bailing-out condition for OptForSize case.
Michael Zolotukhin [Wed, 24 Jun 2015 17:26:24 +0000 (17:26 +0000)]
[LoopVectorizer] Fix bailing-out condition for OptForSize case.

With option OptForSize enabled, the Loop Vectorizer is not supposed to
create tail loop. The condition checking that was invalid and was not
matching to the comment above.

Patch by Marianne Mailhot-Sarrasin.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@240556 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoSimplify the logic, NFC.
Rafael Espindola [Wed, 24 Jun 2015 17:08:44 +0000 (17:08 +0000)]
Simplify the logic, NFC.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@240554 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoADTTests: merge #ifdef checks from r240436.
Alex Lorenz [Wed, 24 Jun 2015 17:05:04 +0000 (17:05 +0000)]
ADTTests: merge #ifdef checks from r240436.

This commit merges the #ifdef and #ifndef checks into one #if, as
suggested by Duncan P. N. Exon Smith.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@240553 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoDon't get confused with sections whose section number is reserved.
Rafael Espindola [Wed, 24 Jun 2015 14:48:54 +0000 (14:48 +0000)]
Don't get confused with sections whose section number is reserved.

It is perfectly possible for SHNDX to contain indexes that have the same value
as reserved st_shndx values.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@240544 91177308-0d34-0410-b5e6-96231b3b80d8

9 years ago[X86][AVX] Added full set of 256-bit vector shift tests.
Simon Pilgrim [Wed, 24 Jun 2015 13:52:25 +0000 (13:52 +0000)]
[X86][AVX] Added full set of 256-bit vector shift tests.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@240542 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoEliminate additional redundant copies of Triple objects. NFC.
Daniel Sanders [Wed, 24 Jun 2015 13:25:57 +0000 (13:25 +0000)]
Eliminate additional redundant copies of Triple objects. NFC.

Subscribers: rafael, llvm-commits, rengolin

Differential Revision: http://reviews.llvm.org/D10654

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@240540 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoFix instruction scheduling live register tracking
Pawel Bylica [Wed, 24 Jun 2015 12:49:42 +0000 (12:49 +0000)]
Fix instruction scheduling live register tracking

Summary:
This patch fixes PR23405 (https://llvm.org/bugs/show_bug.cgi?id=23405).

During a node unscheduling an entry in LiveRegGens can be replaced with a new value. That corrupts the live reg tracking and LiveReg* structure is not cleared as should be during unscheduling. Problematic condition that enforces Gen replacement is `I->getSUnit()->getHeight() < LiveRegGens[I->getReg()]->getHeight()`. This condition should be checked only if LiveRegGen was set in current node unscheduling.

Test Plan: Regression test included.

Reviewers: hfinkel, atrick

Reviewed By: atrick

Subscribers: llvm-commits

Differential Revision: http://reviews.llvm.org/D9993

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@240538 91177308-0d34-0410-b5e6-96231b3b80d8

9 years ago[llvm-stress] Simple refactoring and better style. NFC.
Pawel Bylica [Wed, 24 Jun 2015 11:49:44 +0000 (11:49 +0000)]
[llvm-stress] Simple refactoring and better style. NFC.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@240534 91177308-0d34-0410-b5e6-96231b3b80d8

9 years ago[mips][microMIPS] Implement BREAK, EHB and EI instructions
Zoran Jovanovic [Wed, 24 Jun 2015 10:32:16 +0000 (10:32 +0000)]
[mips][microMIPS] Implement BREAK, EHB and EI instructions
http://reviews.llvm.org/D10090

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@240531 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoChange how symbol sizes are handled in lib/Object.
Rafael Espindola [Wed, 24 Jun 2015 10:20:30 +0000 (10:20 +0000)]
Change how symbol sizes are handled in lib/Object.

COFF and MachO only define symbol sizes for common symbols. Reflect that
in the class hierarchy by having a method for common symbols only in the base
and a general one in ELF.

This avoids the need of using a magic value for the size, which had a few
problems
* Most callers didn't check for it.
* The ones that did could not tell the magic value from a file actually having
  that value.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@240529 91177308-0d34-0410-b5e6-96231b3b80d8

9 years ago[ADT] Teach DenseMap to support StringRef keys.
Chandler Carruth [Wed, 24 Jun 2015 10:06:29 +0000 (10:06 +0000)]
[ADT] Teach DenseMap to support StringRef keys.

While often you want to use something specialized like StringMap, when
the strings already have persistent storage a normal densemap over them
can be more efficient.

This can't go into StringRef.h because of really obnoxious header chains
from the hashing code to the endian detection code to CPU feature
detection code to StringMap.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@240528 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoHexagon: Paper over the undefined behaviour introduced by r238692
Justin Bogner [Wed, 24 Jun 2015 07:03:07 +0000 (07:03 +0000)]
Hexagon: Paper over the undefined behaviour introduced by r238692

This stops shifting a 32-bit value by such absurd amounts as 96 and
120. We do this by dropping a call to the function that was doing this
entirely, which rather surprisingly doesn't break *any* tests.

I've also added an assert in the misbehaving function to prove that
it's no longer being called with completely invalid arguments.

This change looks pretty bogus and we should probably be reverting
r238692 instead, but this is hard to do with the number of follow ups
that have happened since. It can't be any worse than the undefined
behaviour that was happening before though.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@240526 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoMILexer.cpp: Try to fix a warning. [-Wsign-compare]
NAKAMURA Takumi [Wed, 24 Jun 2015 06:40:09 +0000 (06:40 +0000)]
MILexer.cpp: Try to fix a warning. [-Wsign-compare]

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@240525 91177308-0d34-0410-b5e6-96231b3b80d8

9 years ago[TableGen] Restore the use of the TheInit field in Record to cache the Record's DefIn...
Craig Topper [Wed, 24 Jun 2015 06:19:19 +0000 (06:19 +0000)]
[TableGen] Restore the use of the TheInit field in Record to cache the Record's DefInit. I broke this when I fixed memory leaks recently. Remove the DenseMap that mapped Record's to DefInit.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@240524 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoDo not treat ARM _MoveToCoprocessor* intrinsics as MSBuiltins.
Bob Wilson [Wed, 24 Jun 2015 06:07:41 +0000 (06:07 +0000)]
Do not treat ARM _MoveToCoprocessor* intrinsics as MSBuiltins.

Those builtins are now handled via ad-hoc code in clang with r240522 to
deal with reordering the arguments to fix PR22560.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@240523 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoHexagon: Avoid left shifting negative values (it's UB)
Justin Bogner [Wed, 24 Jun 2015 06:00:53 +0000 (06:00 +0000)]
Hexagon: Avoid left shifting negative values (it's UB)

Found by ubsan.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@240521 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoSystemZ: Rephrase this allOnes calculation to avoid UB
Justin Bogner [Wed, 24 Jun 2015 05:59:19 +0000 (05:59 +0000)]
SystemZ: Rephrase this allOnes calculation to avoid UB

This allOnes function hits undefined behaviour if Count is greater
than 64, but we can avoid that and simplify the calculation by just
saturating if such a value is passed in.

This comes up under ubsan becauseRxSBGOperands is sometimes created
with values that are 128 bits wide. Somebody more familiar with this
code should probably look into whether that's expected, as a 64 bit
mask may or may not be appropriate for such types.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@240520 91177308-0d34-0410-b5e6-96231b3b80d8