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r245907 | hfinkel | 2015-08-24 19:48:28 -0400 (Mon, 24 Aug 2015) | 6 lines

[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.

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llvm-svn: 252476

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r249165 | rdivacky | 2015-10-02 19:25:25 +0100 (Fri, 02 Oct 2015) | 2 lines

Actually switch the arch when we see .arch. PR21695

llvm-svn: 252456

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r244221 | dougk | 2015-08-06 11:44:12 -0400 (Thu, 06 Aug 2015) | 4 lines

[SPARC] Don't compare arch name as a string, use the enum instead.

Fixes PR22695

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llvm-svn: 252393

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r251335 | ismail.pazarbasi | 2015-10-26 15:20:24 -0400 (Mon, 26 Oct 2015) | 13 lines

MismatchingNewDeleteDetector uses incorrect field, and finds no initializer

Summary:
In `MismatchingNewDeleteDetector::analyzeInClassInitializer`, if
`Field`'s initializer expression is null, lookup the field in
implicit instantiation, and use found field's the initializer.

Reviewers: rsmith, rtrieu

Subscribers: cfe-commits

Differential Revision: http://reviews.llvm.org/D9898

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llvm-svn: 252290

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r250657 | dimitry | 2015-10-18 09:32:20 -0400 (Sun, 18 Oct 2015) | 13 lines

Support linking against OpenMP runtime on FreeBSD.

Summary:
Similar to rL248426 (which was a followup to rL248379 and rL248424), add the
required libraries for OpenMP on the linker command line, and update the test
case.

Reviewers: emaste, theraven, joerg

Subscribers: cfe-commits

Differential Revision: http://reviews.llvm.org/D13822

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llvm-svn: 252289

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r248426 | joerg | 2015-09-23 16:11:00 -0400 (Wed, 23 Sep 2015) | 2 lines

Support linking against OpenMP runtime on NetBSD.

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llvm-svn: 252288

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r248424 | joerg | 2015-09-23 16:07:56 -0400 (Wed, 23 Sep 2015) | 3 lines

Push OpenMP linker flags after linker input on Darwin. Don't add any
libraries if -nostdlib is specified. Test.

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llvm-svn: 252287

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r248379 | joerg | 2015-09-23 10:06:52 -0400 (Wed, 23 Sep 2015) | 3 lines

Refactor library decision for -fopenmp support from Darwin into a
function for sharing with other platforms.

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llvm-svn: 252286

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r251622 | vkalintiris | 2015-10-29 10:17:16 +0000 (Thu, 29 Oct 2015) | 17 lines

[mips] Check the register class before replacing materializations of zero with $zero in microMIPS.

Summary:
The microMIPS register class GPRMM16 does not contain the $zero register.
However, MipsSEDAGToDAGISel::replaceUsesWithZeroReg() would replace uses
of the $dst register:

  [d]addiu, $dst, $zero, 0

with the $zero register, without checking for membership in the register
class of the target machine operand.

Reviewers: dsanders

Subscribers: llvm-commits, dsanders

Differential Revision: http://reviews.llvm.org/D13984
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llvm-svn: 252158

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r245741 | hfinkel | 2015-08-21 17:34:24 -0400 (Fri, 21 Aug 2015) | 8 lines

[PowerPC] PPCVSXFMAMutate should not segfault on undef input registers

When PPCVSXFMAMutate would look at the input addend register, it would get its
input value number. This would fail, however, if the register was undef,
causing a segfault. Don't segfault (just skip such FMA instructions).

Fixes the test case from PR24542 (although that may have been over-reduced).

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llvm-svn: 252132

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r249718 | ast | 2015-10-08 11:52:40 -0700 (Thu, 08 Oct 2015) | 16 lines

[bpf] Do not expand UNDEF SDNode during insn selection lowering

  o Before this patch, BPF backend will expand UNDEF node
    to i64 constant 0.
  o For second pass of dag combiner, legalizer will run through
    each to-be-processed dag node.
  o If any new SDNode is generated and has an undef operand,
    dag combiner will put undef node, newly-generated constant-0 node,
    and any node which uses these nodes in the working list.
  o During this process, it is possible undef operand is
    generated again, and this will form an infinite loop
    for dag combiner pass2.
  o This patch allows UNDEF to be a legal type.

Signed-off-by: Yonghong Song <yhs@plumgrid.com>
Signed-off-by: Alexei Starovoitov <ast@plumgrid.com>
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llvm-svn: 251177

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r249371 | ast | 2015-10-05 21:00:53 -0700 (Mon, 05 Oct 2015) | 25 lines

[bpf] Avoid extra pointer arithmetic for stack access

For the program like below
struct key_t {
  int pid;
  char name[16];
};
extern void test1(char *);
int test() {
  struct key_t key = {};
  test1(key.name);
  return 0;
}
For key.name, the llc/bpf may generate the below code:
  R1 = R10  // R10 is the frame pointer
  R1 += -24 // framepointer adjustment
  R1 |= 4   // R1 is then used as the first parameter of test1
OR operation is not recognized by in-kernel verifier.

This patch introduces an intermediate FI_ri instruction and
generates the following code that can be properly verified:
  R1 = R10
  R1 += -20

Patch by Yonghong Song <yhs@plumgrid.com>
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llvm-svn: 251175

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r247951 | ast | 2015-09-17 15:18:08 -0700 (Thu, 17 Sep 2015) | 5 lines

[bpf] expand indirect branches

BPF instruction set doesn't have indirect branches. Expand them.

Reported by John Fastabend.
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llvm-svn: 251174

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r247128 | dsanders | 2015-09-09 10:53:20 +0100 (Wed, 09 Sep 2015) | 31 lines

Fix vector splitting for extract_vector_elt and vector elements of <8-bits.

Summary:
One of the vector splitting paths for extract_vector_elt tries to lower:
    define i1 @via_stack_bug(i8 signext %idx) {
      %1 = extractelement <2 x i1> <i1 false, i1 true>, i8 %idx
      ret i1 %1
    }
to:
    define i1 @via_stack_bug(i8 signext %idx) {
      %base = alloca <2 x i1>
      store <2 x i1> <i1 false, i1 true>, <2 x i1>* %base
      %2 = getelementptr <2 x i1>, <2 x i1>* %base, i32 %idx
      %3 = load i1, i1* %2
      ret i1 %3
    }
However, the elements of <2 x i1> are not byte-addressible. The result of this
is that the getelementptr expands to '%base + %idx * (1 / 8)' which simplifies
to '%base + %idx * 0', and then simply '%base' causing all values of %idx to
extract element zero.

This commit fixes this by promoting the vector elements of <8-bits to i8 before
splitting the vector.

This fixes a number of test failures in pocl.

Reviewers: pekka.jaaskelainen

Subscribers: pekka.jaaskelainen, llvm-commits

Differential Revision: http://reviews.llvm.org/D12591
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llvm-svn: 247539

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r246990 | dsanders | 2015-09-08 10:07:03 +0100 (Tue, 08 Sep 2015) | 9 lines

[mips] Reserve address spaces 1-255 for software use.

Summary: And define them to have noop casts with address spaces 0-255.

Reviewers: pekka.jaaskelainen

Subscribers: pekka.jaaskelainen, llvm-commits

Differential Revision: http://reviews.llvm.org/D12678
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llvm-svn: 247538

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r247372 | dexonsmith | 2015-09-10 18:34:59 -0700 (Thu, 10 Sep 2015) | 15 lines

AsmWriter: Avoid O(N^2) processing of metadata

Fix embarrassing bugs I introduced to the `SlotTracker` in or around
r235785.  I had us iterating through every instruction in a function
(and hitting a map in the LLVMContext) for every basic block in the
function.

While there, completely avoid the call to
`SlotTracker::processFunctionMetadata()` from
`SlotTracker::processFunction()` if we've speculatively done this
already in `SlotTracker::processModule()` by checking
`ShouldInitializeAllMetadata` (this wasn't an algorithmic problem, but
it's touching the same line of code).

Fixes PR24699.
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llvm-svn: 247440

It restores the signature of LLVMBuildLandingPad in the C API back to what it
was in 3.6 and earlier.

The 3.7.0 release should have had this but it did not.

llvm-svn: 247191

llvm-svn: 246299

and clang-tidy sections, which concern similar functionality.

llvm-svn: 246157

libunwind moved from libc++abi into a separate project.  This may catch users
off guard, so add a release note.

Thanks to Hans for the reminder!

llvm-svn: 246136

llvm-svn: 246135

llvm-svn: 246108

By Greg Bedwell!

Differential Revision: http://reviews.llvm.org/D12368

llvm-svn: 246090

By Brenden Blanco!

llvm-svn: 246072

Patch by Greg Bedwell!

Differential Revision: http://reviews.llvm.org/D12367

llvm-svn: 246071

By Tobias Grosser!

llvm-svn: 246053

llvm-svn: 246036

SCEVExpander, which we are using during code generation, only allows
instructions as insert locations, but breaks in case BasicBlock->end() iterators
are passed to it due to it trying to obtain the basic block in which code should
be generated by calling Instruction->getParent(), which is not defined for
->end() iterators.

This change adds an assert to Polly that ensures we only pass valid instructions
to SCEVExpander and it fixes one case, where we used IRBuilder->SetInsertBlock()
to set an ->end() insert location which was later passed to SCEVExpander.

In general, Polly is always trying to build up the CFG first, before we actually
insert instructions into the CFG sceleton. As a result, each basic block should
already have at least one branch instruction before we start adding code. Hence,
always requiring the IRBuilder insert location to be set to a real instruction
should always be possible.

Thanks Utpal Bora <cs14mtech11017@iith.ac.in> for his help with test case
reduction.

This is a backport from r243830 as it was committed on trunk.

llvm-svn: 246029

llvm-svn: 246013

llvm-svn: 245973

llvm-svn: 245972

llvm-svn: 245969

llvm-svn: 245968

By Mehdi Amini.

llvm-svn: 245948

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r245927 | slthakur | 2015-08-25 02:52:59 -0700 (Tue, 25 Aug 2015) | 9 lines

Fix build on mips

Setting and getting register values as bytes instead of depending on the 128 bit integer support in register value.
This patch will fix the build failure in the release branch.

Reviewers: tberghammer, clayborg, hans
Subscribers: bhushan, nitesh.jain, jaydeep, lldb-commits
Differential: http://reviews.llvm.org/D12275

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llvm-svn: 245947

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r245902 | hans | 2015-08-24 16:34:28 -0700 (Mon, 24 Aug 2015) | 3 lines

Revert r245355 "Release script: correctly symlink clang-tools-extra into the build (PR22765)"

This worked with the CMake build but broke the Autoconf one.
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llvm-svn: 245903

llvm-svn: 245857

Update CREDITS.TXT with Clang OpenMP implementation + test suite contributors from AMD, Argonne National Lab., IBM, Intel, Texas Instruments, University of Houston and many others. 

llvm-svn: 245845

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llvm-svn: 245623

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r245560 | ogoffart | 2015-08-20 06:11:14 -0700 (Thu, 20 Aug 2015) | 5 lines

Fix crash with two typos in the arguments of a function

The problem is that the arguments are of TheCall are reset later
to the ones in Args, making TypoExpr put back. Some TypoExpr that have
already  been diagnosed and will assert later in Sema::getTypoExprState
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llvm-svn: 245615