fputc, memchr, memcmp, putchar, puts, strchr, strncmp

llvm-svn: 160690

are targeting an ELF platform.  Only fold gs-relative (and fs-relative) loads
if it is actually sensible to do so for the target platform.

This fixes PR13438.

llvm-svn: 160687

Patch by Sid Manning!

llvm-svn: 160685

llvm-svn: 160678

llvm-svn: 160676

llvm-svn: 160668

might be deliberate "one time" leaks, so that leak checkers can find them.
This is a reapply of r160602 with the fix that this time I'm committing the
code I thought I was committing last time; the I->eraseFromParent() goes
*after* the break out of the loop.

llvm-svn: 160664

Change llvm_unreachable in SplitVectorOperand to report_fatal_error. Keeps release builds from crashing if code uses an intrinsic with an illegal type.

llvm-svn: 160661

ExecutionEngine/test-fp.ll.
 
Patch by Petar Jovanovic.

llvm-svn: 160653

Hello world will compile and execute with this patch.

Patch by Reed Kotler.

llvm-svn: 160651

redirection in the system call.

Patch by Andy Gibbs.

llvm-svn: 160644

llvm-svn: 160643

the comparison.  This prevents large unsigned integers from being equal to
signed negative integers of the same bit width.

llvm-svn: 160642

rdar://11931823.

llvm-svn: 160637

llvm-svn: 160636

llvm-svn: 160632

llvm-svn: 160631

llvm-svn: 160629

llvm-svn: 160623

llvm-svn: 160621

that do not support it (X86 does not lower select_cc).

PR: 13428

Together with Michael Kuperstein <michael.m.kuperstein@intel.com>

llvm-svn: 160619

llvm-svn: 160617

Change llvm_unreachable in SplitVectorResult to report_fatal_error. Keeps release builds from crashing if code uses an intrinsic with an illegal type. For instance 256-bit AVX intrinsics without having AVX enabled.

llvm-svn: 160616

moved earlier. This fixes some layering issues.

llvm-svn: 160611

In current implementation, JIT should run only on host.

llvm-svn: 160610

cmake: Add LLVM_HOSTTRIPLE. For now, it is same as TARGET_TRIPLE.
llvm-svn: 160609

llvm-svn: 160603

r160529 that was subsequently reverted. The fix was to not call
GV->eraseFromParent() right before the caller does the same. The existing
testcases already caught this bug if run under valgrind.

llvm-svn: 160602

This pass no longer requires that the global pointer value be saved to the
stack or register since it uses bal instruction to compute branch distance.

llvm-svn: 160601

llvm-svn: 160599

llvm-svn: 160598

Test case will be added later when long branch patch is checked in.

llvm-svn: 160597

baby steps toward fixing some problems with inbound GEPs that overflow, as discussed 2 months ago or so.
Make sure we do not emit index computations with NSW flags so that we dont get an undef value if the GEP overflows

llvm-svn: 160589

move the bounds checking pass to the instrumentation folder, where it belongs. I dunno why in the world I dropped it in the Scalar folder in the first place.
No functionality change.

llvm-svn: 160587

Remove unused private member variables uncovered by the recent changes to clang's -Wunused-private-field.

llvm-svn: 160583

llvm-svn: 160576

LiveRangeEdit::foldAsLoad() can eliminate a register by folding a load
into its only use. Only do that when the load is safe to move, and it
won't extend any live ranges.

This fixes PR13414.

llvm-svn: 160575

CI's name, and then used the StringRef pointing at its old name. I'm
fixing it by storing the name in a std::string, and hoisting the
renaming logic to happen always. This is nicer anyways as it will allow
the upgraded IR to have the same names as the input IR in more cases.

Another bug found by AddressSanitizer. Woot.

llvm-svn: 160572

PHIElimination splits critical edges when it predicts it can resolve
interference and eliminate copies. It doesn't split the edge if the
interference wouldn't be resolved anyway because the phi-use register is
live in the critical edge anyway.

Teach PHIElimination to split loop exiting edges with interference, even
if it wouldn't resolve the interference. This removes the necessary
copies from the loop, which is still an improvement from injecting the
copies into the loop.

The test case demonstrates the improvement. Before:

LBB0_1:
  cmpb  $0, (%rdx)
  leaq  1(%rdx), %rdx
  movl  %esi, %eax
  je  LBB0_1

After:

LBB0_1:
  cmpb  $0, (%rdx)
  leaq  1(%rdx), %rdx
  je  LBB0_1

  movl  %esi, %eax

llvm-svn: 160571

llvm-svn: 160567