oota-llvm.git
9 years ago[x86] Switch a collection of tests explicitly to the new vector shuffle
Chandler Carruth [Sun, 15 Feb 2015 06:37:21 +0000 (06:37 +0000)]
[x86] Switch a collection of tests explicitly to the new vector shuffle
legality test (essentially, everything is legal).

I'm planning to make this the default shortly, but I'd like to fix
a collection of the bugs it exposes first, and this will let me easily
test them. It also showcases both the improvements and a few of the
regressions triggered by the change. The biggest improvements by far are
the significantly reduced shuffling and domain crossing in the combining
test case. The biggest regressions are missing some clever blending
patterns.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@229284 91177308-0d34-0410-b5e6-96231b3b80d8

9 years ago[x86] Remove the now-default-on flag for the new vector shuffle lowering
Chandler Carruth [Sun, 15 Feb 2015 06:20:51 +0000 (06:20 +0000)]
[x86] Remove the now-default-on flag for the new vector shuffle lowering
strategy from a bunch of tests.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@229283 91177308-0d34-0410-b5e6-96231b3b80d8

9 years ago[X86] Add assembler predicates for the rest of the AVX512 feature flags. This makes...
Craig Topper [Sun, 15 Feb 2015 04:54:55 +0000 (04:54 +0000)]
[X86] Add assembler predicates for the rest of the AVX512 feature flags. This makes the assembly matching consistent across all AVX512 instructions. Without this we were allowing some AVX512 instructions to be parsed always, but not the foundation instructions.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@229280 91177308-0d34-0410-b5e6-96231b3b80d8

9 years ago[X86] Add the remaining 11 possible exact ModRM formats. This makes their encodings...
Craig Topper [Sun, 15 Feb 2015 04:16:44 +0000 (04:16 +0000)]
[X86] Add the remaining 11 possible exact ModRM formats. This makes their encodings linear which can then be used to simplify some other code.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@229279 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoFileCheck-ize a test to make it easier to migrate to typeless pointers
David Blaikie [Sun, 15 Feb 2015 04:14:00 +0000 (04:14 +0000)]
FileCheck-ize a test to make it easier to migrate to typeless pointers

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@229278 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoUpdate a test to make it easier to migrate to untyped pointers
David Blaikie [Sun, 15 Feb 2015 04:13:58 +0000 (04:13 +0000)]
Update a test to make it easier to migrate to untyped pointers

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@229277 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoUpdate a test to use FileCheck so it's easier to migrate to future typeless pointer...
David Blaikie [Sun, 15 Feb 2015 04:13:57 +0000 (04:13 +0000)]
Update a test to use FileCheck so it's easier to migrate to future typeless pointer changes

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@229276 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoReformat test case to be easier to migrate to typeless pointers.
David Blaikie [Sun, 15 Feb 2015 04:13:53 +0000 (04:13 +0000)]
Reformat test case to be easier to migrate to typeless pointers.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@229275 91177308-0d34-0410-b5e6-96231b3b80d8

9 years ago[x86] Teach my test updating script about another quirk of the printed
Chandler Carruth [Sun, 15 Feb 2015 00:08:01 +0000 (00:08 +0000)]
[x86] Teach my test updating script about another quirk of the printed
asm and port the mmx vector shuffle test to it.

Not thrilled with how it handles the stack manipulation logic, but I'm
much less bothered by that than I am by updating the test manually. =]
If anyone wants to teach the test checks management script about stack
adjustment patterns, that'd be cool too.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@229268 91177308-0d34-0410-b5e6-96231b3b80d8

9 years ago[X86][XOP] Enable commutation for XOP instructions
Simon Pilgrim [Sat, 14 Feb 2015 22:40:46 +0000 (22:40 +0000)]
[X86][XOP] Enable commutation for XOP instructions

Patch to allow XOP instructions (integer comparison and integer multiply-add) to be commuted. The comparison instructions sometimes require the compare mode to be flipped but the remaining instructions can use default commutation modes.

This patch also sets the SSE domains of all the XOP instructions.

Differential Revision: http://reviews.llvm.org/D7646

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@229267 91177308-0d34-0410-b5e6-96231b3b80d8

9 years ago[X86] Improve parsing support AVX/SSE floating point compare instruction mnemonic...
Craig Topper [Sat, 14 Feb 2015 21:54:03 +0000 (21:54 +0000)]
[X86] Improve parsing support AVX/SSE floating point compare instruction mnemonic aliases. They'll now print with the alias the parser received instead of converting to the explicit immediate form.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@229266 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoInstCombine: propagate deref via new addDereferenceableAttr
Ramkumar Ramachandra [Sat, 14 Feb 2015 19:37:54 +0000 (19:37 +0000)]
InstCombine: propagate deref via new addDereferenceableAttr

The "dereferenceable" attribute cannot be added via .addAttribute(),
since it also expects a size in bytes. AttrBuilder#addAttribute or
AttributeSet#addAttribute is wrapped by classes Function, InvokeInst,
and CallInst. Add corresponding wrappers to
AttrBuilder#addDereferenceableAttr.

Having done this, propagate the dereferenceable attribute via
gc.relocate, adding a test to exercise it. Note that -datalayout is
required during execution over and above -instcombine, because
InstCombine only optionally requires DataLayoutPass.

Differential Revision: http://reviews.llvm.org/D7510

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@229265 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoTarget: Canonicalize access to function attributes, NFC
Duncan P. N. Exon Smith [Sat, 14 Feb 2015 15:36:52 +0000 (15:36 +0000)]
Target: Canonicalize access to function attributes, NFC

Canonicalize access to function attributes to use the simpler API.

getAttributes().getAttribute(AttributeSet::FunctionIndex, Kind)
  => getFnAttribute(Kind)

getAttributes().hasAttribute(AttributeSet::FunctionIndex, Kind)
  => hasFnAttribute(Kind)

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@229261 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoNVPTX: Canonicalize access to function attributes, NFC
Duncan P. N. Exon Smith [Sat, 14 Feb 2015 15:35:43 +0000 (15:35 +0000)]
NVPTX: Canonicalize access to function attributes, NFC

Canonicalize access to function attributes to use the simpler API.

getAttributes().getAttribute(AttributeSet::FunctionIndex, Kind)
  => getFnAttribute(Kind)

getAttributes().hasAttribute(AttributeSet::FunctionIndex, Kind)
  => hasFnAttribute(Kind)

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@229260 91177308-0d34-0410-b5e6-96231b3b80d8

9 years ago[optnone] Skip pass Constant Hoisting on optnone functions.
Andrea Di Biagio [Sat, 14 Feb 2015 15:11:48 +0000 (15:11 +0000)]
[optnone] Skip pass Constant Hoisting on optnone functions.

Added test CodeGen/X86/constant-hoisting-optnone.ll to verify that
pass Constant Hoisting is not run on optnone functions.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@229258 91177308-0d34-0410-b5e6-96231b3b80d8

9 years ago[X86] Ensure integer domain on scalar load/store stack folding tests. NFC
Simon Pilgrim [Sat, 14 Feb 2015 14:10:44 +0000 (14:10 +0000)]
[X86] Ensure integer domain on scalar load/store stack folding tests. NFC

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@229257 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoLine ending fix. NFC.
Simon Pilgrim [Sat, 14 Feb 2015 13:27:53 +0000 (13:27 +0000)]
Line ending fix. NFC.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@229256 91177308-0d34-0410-b5e6-96231b3b80d8

9 years ago[gold] Consolidate the gold plugin options and actually search for
Chandler Carruth [Sat, 14 Feb 2015 09:43:57 +0000 (09:43 +0000)]
[gold] Consolidate the gold plugin options and actually search for
a gold binary explicitly. Substitute this binary into the tests rather
than just directly executing the 'ld' binary.

This should allow folks to inject a cross compiling gold binary, or in
my case to use a gold binary built and installed somewhere other than
/usr/bin/ld. It should also allow the tests to find 'ld.gold' so that
things work even if gold isn't the default on the system.

I've only stubbed out support in the makefile to preserve the existing
behavior with none of the fancy logic. If someone else wants to add
logic here, they're welcome to do so.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@229251 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoRemove a variable only used in an assert and sink its initializer into
Chandler Carruth [Sat, 14 Feb 2015 09:14:44 +0000 (09:14 +0000)]
Remove a variable only used in an assert and sink its initializer into
the assert. Fixes -Wunused-variable on non-asserts builds.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@229250 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoBack out two accidental changes that snuck in with r229245. Sorry these
Chandler Carruth [Sat, 14 Feb 2015 09:05:58 +0000 (09:05 +0000)]
Back out two accidental changes that snuck in with r229245. Sorry these
snuck in, they weren't ready for prime time and had *nothing* to do
with that commit.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@229248 91177308-0d34-0410-b5e6-96231b3b80d8

9 years ago[lit] Make the gold plugin support testing work with a python3
Chandler Carruth [Sat, 14 Feb 2015 09:05:56 +0000 (09:05 +0000)]
[lit] Make the gold plugin support testing work with a python3
interpreter. Seems that's a better path than pinning to python2.7.

Thanks to Justin for prodding me toward a fix. =]

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@229247 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoRevert r229224: Make the 'llvm-lit' utility defend against a system where Python3
Chandler Carruth [Sat, 14 Feb 2015 07:11:25 +0000 (07:11 +0000)]
Revert r229224: Make the 'llvm-lit' utility defend against a system where Python3

Apparantly python2.7 also doesn't work. Awesome.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@229245 91177308-0d34-0410-b5e6-96231b3b80d8

9 years ago[lit] Make the 'llvm-lit' utility defend against a system where Python3
Chandler Carruth [Sat, 14 Feb 2015 07:05:15 +0000 (07:05 +0000)]
[lit] Make the 'llvm-lit' utility defend against a system where Python3
is the default.

The lit.cfg files are not all valid Python3 and I've no idea if anyone
is really prepared to update them. The easiest way I know of to ensure
that this script uses Python 2 is to use 'python2.7' in the command. Mac
and Linux are definitely fine with this and I think other platforms will
be as well, but if anyone struggles with this set up and has better
ideas, let me know.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@229244 91177308-0d34-0410-b5e6-96231b3b80d8

9 years ago[modules] Try harder to stop DebugInfo/PDB/DIA being built if not available.
Richard Smith [Sat, 14 Feb 2015 05:54:56 +0000 (05:54 +0000)]
[modules] Try harder to stop DebugInfo/PDB/DIA being built if not available.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@229243 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoR600/SI: Implement correct f64 fdiv
Matt Arsenault [Sat, 14 Feb 2015 04:30:08 +0000 (04:30 +0000)]
R600/SI: Implement correct f64 fdiv

This version passes the OpenCL conformance test.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@229239 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoR600/SI: Use complex operand folding for div_scale
Matt Arsenault [Sat, 14 Feb 2015 04:24:28 +0000 (04:24 +0000)]
R600/SI: Use complex operand folding for div_scale

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@229238 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoR600/SI: Add tests for div_fmas with inline immediate operands
Matt Arsenault [Sat, 14 Feb 2015 04:22:02 +0000 (04:22 +0000)]
R600/SI: Add tests for div_fmas with inline immediate operands

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@229237 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoR600/SI: Fix implicit vcc operand to v_div_fmas_*
Matt Arsenault [Sat, 14 Feb 2015 04:22:00 +0000 (04:22 +0000)]
R600/SI: Fix implicit vcc operand to v_div_fmas_*

This should allow finally fixing the f64 fdiv implementation.

Test is disabled for VI since there seems to be a problem with one
of the buffer load instructions on it.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@229236 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoR600/SI: Fix schedule model for v_div_scale_{f32|f64}
Matt Arsenault [Sat, 14 Feb 2015 04:03:18 +0000 (04:03 +0000)]
R600/SI: Fix schedule model for v_div_scale_{f32|f64}

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@229235 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoR600/SI: Really fix size of VReg_1
Matt Arsenault [Sat, 14 Feb 2015 03:54:32 +0000 (03:54 +0000)]
R600/SI: Really fix size of VReg_1

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@229234 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoR600/SI: Rename encoding field to match docs for VOP3b
Matt Arsenault [Sat, 14 Feb 2015 03:54:29 +0000 (03:54 +0000)]
R600/SI: Rename encoding field to match docs for VOP3b

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@229233 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agollvm-pdbdump: Only dump whitelisted global symbols.
Zachary Turner [Sat, 14 Feb 2015 03:54:28 +0000 (03:54 +0000)]
llvm-pdbdump: Only dump whitelisted global symbols.

Dumping the global scope contains a lot of very uninteresting
things and is generally polluted with a lot of random junk.
Furthermore, it dumps values unsorted, making it hard to read.
This patch dumps known interesting types only, and as a side
effect sorts the list by symbol type.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@229232 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agollvm-pdbdump: Re-order header files according to LLVM style guide.
Zachary Turner [Sat, 14 Feb 2015 03:53:56 +0000 (03:53 +0000)]
llvm-pdbdump: Re-order header files according to LLVM style guide.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@229231 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoR600/SI: Fix not encoding src2 for v_div_scale_{f32|f64}
Matt Arsenault [Sat, 14 Feb 2015 03:40:35 +0000 (03:40 +0000)]
R600/SI: Fix not encoding src2 for v_div_scale_{f32|f64}

This apparently got lost in the VI changes.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@229230 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoR600/SI: Fix VOP3b encoding on VI
Matt Arsenault [Sat, 14 Feb 2015 03:02:23 +0000 (03:02 +0000)]
R600/SI: Fix VOP3b encoding on VI

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@229228 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoR600/SI: Fix phys reg copies in SIFoldOperands
Matt Arsenault [Sat, 14 Feb 2015 02:55:57 +0000 (02:55 +0000)]
R600/SI: Fix phys reg copies in SIFoldOperands

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@229227 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoR600/SI: Fix copies from SGPR to VCC
Matt Arsenault [Sat, 14 Feb 2015 02:55:56 +0000 (02:55 +0000)]
R600/SI: Fix copies from SGPR to VCC

This shows up without optimizations when vcc is required
to be used.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@229226 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoR600/SI: Add hack to copy from a VGPR to VCC
Matt Arsenault [Sat, 14 Feb 2015 02:55:54 +0000 (02:55 +0000)]
R600/SI: Add hack to copy from a VGPR to VCC

This hopefully should be fixed when VReg_1 is removed.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@229225 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoPowerPC: Canonicalize access to function attributes, NFC
Duncan P. N. Exon Smith [Sat, 14 Feb 2015 02:54:07 +0000 (02:54 +0000)]
PowerPC: Canonicalize access to function attributes, NFC

Canonicalize access to function attributes to use the simpler API.

getAttributes().getAttribute(AttributeSet::FunctionIndex, Kind)
  => getFnAttribute(Kind)

getAttributes().hasAttribute(AttributeSet::FunctionIndex, Kind)
  => hasFnAttribute(Kind)

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@229224 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoR600/SI: Fix size of VReg_1
Matt Arsenault [Sat, 14 Feb 2015 02:51:44 +0000 (02:51 +0000)]
R600/SI: Fix size of VReg_1

This is really a 32-bit register, if we try to check the size of it,
we want 32-bits.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@229223 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoR600: Canonicalize access to function attributes, NFC
Duncan P. N. Exon Smith [Sat, 14 Feb 2015 02:45:45 +0000 (02:45 +0000)]
R600: Canonicalize access to function attributes, NFC

Canonicalize access to function attributes to use the simpler API.

getAttributes().getAttribute(AttributeSet::FunctionIndex, Kind)
  => getFnAttribute(Kind)

getAttributes().hasAttribute(AttributeSet::FunctionIndex, Kind)
  => hasFnAttribute(Kind)

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@229222 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoMips: Canonicalize access to function attributes, NFC
Duncan P. N. Exon Smith [Sat, 14 Feb 2015 02:37:48 +0000 (02:37 +0000)]
Mips: Canonicalize access to function attributes, NFC

Canonicalize access to function attributes to use the simpler API.

getAttributes().getAttribute(AttributeSet::FunctionIndex, Kind)
  => getFnAttribute(Kind)

getAttributes().hasAttribute(AttributeSet::FunctionIndex, Kind)
  => hasFnAttribute(Kind)

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@229221 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoARM: Canonicalize access to function attributes, NFC
Duncan P. N. Exon Smith [Sat, 14 Feb 2015 02:24:44 +0000 (02:24 +0000)]
ARM: Canonicalize access to function attributes, NFC

Canonicalize access to function attributes to use the simpler API.

getAttributes().getAttribute(AttributeSet::FunctionIndex, Kind)
  => getFnAttribute(Kind)

getAttributes().hasAttribute(AttributeSet::FunctionIndex, Kind)
  => hasFnAttribute(Kind)

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@229220 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoAArch64: Canonicalize access to function attributes, NFC
Duncan P. N. Exon Smith [Sat, 14 Feb 2015 02:09:06 +0000 (02:09 +0000)]
AArch64: Canonicalize access to function attributes, NFC

Canonicalize access to function attributes to use the simpler API.

getAttributes().getAttribute(AttributeSet::FunctionIndex, Kind)
  => getFnAttribute(Kind)

getAttributes().hasAttribute(AttributeSet::FunctionIndex, Kind)
  => hasFnAttribute(Kind)

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@229218 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agollvm-cov: Actually use the command line arguments when reporting
Justin Bogner [Sat, 14 Feb 2015 02:05:05 +0000 (02:05 +0000)]
llvm-cov: Actually use the command line arguments when reporting

This code didn't really make sense as is. If a filename is passed in,
the user obviously wants the coverage *for that file*, not *for
everything*.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@229217 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agollvm-cov: Simplify coverage reports, fixing PR22575 in the process
Justin Bogner [Sat, 14 Feb 2015 02:01:24 +0000 (02:01 +0000)]
llvm-cov: Simplify coverage reports, fixing PR22575 in the process

PR22575 occurred because we were unsafely storing references into a
std::vector. If the vector moved because it grew, we'd be left
iterating through garbage memory. This avoids the issue by simplifying
the logic to gather coverage information as we go, rather than storing
it and iterating over it.

I'm relying on the existing tests showing that this is semantically
NFC, since it's difficult to hit the issue this fixes without
relatively large covered programs.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@229215 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoX86: Canonicalize access to function attributes, NFC
Duncan P. N. Exon Smith [Sat, 14 Feb 2015 01:59:52 +0000 (01:59 +0000)]
X86: Canonicalize access to function attributes, NFC

Canonicalize access to function attributes to use the simpler API.

getAttributes().getAttribute(AttributeSet::FunctionIndex, Kind)
  => getFnAttribute(Kind)

getAttributes().hasAttribute(AttributeSet::FunctionIndex, Kind)
  => hasFnAttribute(Kind)

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@229214 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agollvm-go: Set $GCCGO instead of putting a gccgo executable on $PATH.
Peter Collingbourne [Sat, 14 Feb 2015 01:45:57 +0000 (01:45 +0000)]
llvm-go: Set $GCCGO instead of putting a gccgo executable on $PATH.

Now that llgo ships its own go command we can rely on it having support for $GCCGO.

Differential Revision: http://reviews.llvm.org/D7628

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@229210 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agollvm-go: Add flag for specifying path to go command.
Peter Collingbourne [Sat, 14 Feb 2015 01:45:56 +0000 (01:45 +0000)]
llvm-go: Add flag for specifying path to go command.

Differential Revision: http://reviews.llvm.org/D7627

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@229209 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoCodeGen: Canonicalize access to function attributes, NFC
Duncan P. N. Exon Smith [Sat, 14 Feb 2015 01:44:41 +0000 (01:44 +0000)]
CodeGen: Canonicalize access to function attributes, NFC

Canonicalize access to function attributes to use the simpler API.

getAttributes().getAttribute(AttributeSet::FunctionIndex, Kind)
  => getFnAttribute(Kind)

getAttributes().hasAttribute(AttributeSet::FunctionIndex, Kind)
  => hasFnAttribute(Kind)

Also, add `Function::getFnStackAlignment()`, and canonicalize:

getAttributes().getStackAlignment(AttributeSet::FunctionIndex)
  => getFnStackAlignment()

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@229208 91177308-0d34-0410-b5e6-96231b3b80d8

9 years ago[X86] Factor out the CMOV pseudo definitions. NFCI.
Ahmed Bougacha [Sat, 14 Feb 2015 01:36:53 +0000 (01:36 +0000)]
[X86] Factor out the CMOV pseudo definitions. NFCI.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@229206 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoRevert "On ELF, put PIC jump tables in a non executable section."
Matthias Braun [Sat, 14 Feb 2015 01:16:54 +0000 (01:16 +0000)]
Revert "On ELF, put PIC jump tables in a non executable section."

This reverts commit r228939.

The commit broke something in the output of exception handling tables on
darwin x86-64.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@229203 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoTransforms: Canonicalize access to function attributes, NFC
Duncan P. N. Exon Smith [Sat, 14 Feb 2015 01:11:29 +0000 (01:11 +0000)]
Transforms: Canonicalize access to function attributes, NFC

Canonicalize access to function attributes to use the simpler API.

getAttributes().getAttribute(AttributeSet::FunctionIndex, Kind)
  => getFnAttribute(Kind)

getAttributes().hasAttribute(AttributeSet::FunctionIndex, Kind)
  => hasFnAttribute(Kind)

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@229202 91177308-0d34-0410-b5e6-96231b3b80d8

9 years ago[modules] Split off a separate module for DebugInfo/PDB/DIA so that its headers
Richard Smith [Sat, 14 Feb 2015 00:47:20 +0000 (00:47 +0000)]
[modules] Split off a separate module for DebugInfo/PDB/DIA so that its headers
don't get included on systems where the DIA SDK is unavailable.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@229200 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoRevert r229185, "Raising minimum required Visual Studio version to 2013."
NAKAMURA Takumi [Sat, 14 Feb 2015 00:45:32 +0000 (00:45 +0000)]
Revert r229185, "Raising minimum required Visual Studio version to 2013."

All builders are not ready yet.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@229199 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoUnify the two EH personality classification routines I wrote
Reid Kleckner [Sat, 14 Feb 2015 00:21:02 +0000 (00:21 +0000)]
Unify the two EH personality classification routines I wrote

We only need one.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@229193 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoAnalysis: Canonicalize access to function attributes, NFC
Duncan P. N. Exon Smith [Sat, 14 Feb 2015 00:12:15 +0000 (00:12 +0000)]
Analysis: Canonicalize access to function attributes, NFC

Canonicalize access to function attributes to use the simpler API.

getAttributes().getAttribute(AttributeSet::FunctionIndex, Kind)
  => getFnAttribute(Kind)

getAttributes().hasAttribute(AttributeSet::FunctionIndex, Kind)
  => hasFnAttribute(Kind)

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@229192 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoUse the template method to grab the target specific subtarget.
Eric Christopher [Sat, 14 Feb 2015 00:09:46 +0000 (00:09 +0000)]
Use the template method to grab the target specific subtarget.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@229191 91177308-0d34-0410-b5e6-96231b3b80d8

9 years ago[InstCombine] When canonicalizing gep indices, prefer zext when possible
Philip Reames [Sat, 14 Feb 2015 00:05:36 +0000 (00:05 +0000)]
[InstCombine] When canonicalizing gep indices, prefer zext when possible

If we know that the sign bit of a value being sign extended is zero, we can use a zero extension instead.  This is motivated by the fact that zero extensions are generally cheaper on x86 (and most other architectures?).  We already apply a similar transform in DAGCombine, this just extends that to the IR level.

This comes up when we eagerly canonicalize gep indices to the width of a machine register (i64 on x86_64). To do so, we insert sign extensions (sext) to promote smaller types.

Differential Revision: http://reviews.llvm.org/D7255

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@229189 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoRaising minimum required Visual Studio version to 2013.
Chris Bieneman [Fri, 13 Feb 2015 23:24:14 +0000 (23:24 +0000)]
Raising minimum required Visual Studio version to 2013.

This is based on the discussions on: [LLVMdev] [RFC] Raising LLVM minimum required MSVC version to 2013 for trunk

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@229185 91177308-0d34-0410-b5e6-96231b3b80d8

9 years ago[dsymutil] Add DIE selection algorithm.
Frederic Riss [Fri, 13 Feb 2015 23:18:34 +0000 (23:18 +0000)]
[dsymutil] Add DIE selection algorithm.

With this commit, llvm-dsymutil learns how to choose which DIEs
it will link in the final output and which ones it won't. This
is based on the 'valid relocation' information that has been
built in the previous commits.

The test only tests that we choose the right 'root DIEs'. The
selection algorithm (and especially the part that walk the
dependencies of a root DIE) lacks a bit test coverage. This
will be much easier to cover when we output actual Dwarf and
thus can use llvm-dwarfdump to verify the structure of the
emitted DIE trees. I'll add more tests then.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@229183 91177308-0d34-0410-b5e6-96231b3b80d8

9 years ago[dsymutil] Downcase a function name.
Frederic Riss [Fri, 13 Feb 2015 23:18:31 +0000 (23:18 +0000)]
[dsymutil] Downcase a function name.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@229182 91177308-0d34-0410-b5e6-96231b3b80d8

9 years ago[dsymutil] Add a few generic helper methods.
Frederic Riss [Fri, 13 Feb 2015 23:18:29 +0000 (23:18 +0000)]
[dsymutil] Add a few generic helper methods.

To be used in subsequent commits (separated to keep only core logic
in the follow-ups).

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@229181 91177308-0d34-0410-b5e6-96231b3b80d8

9 years ago[dsymutil] constify trivial function.
Frederic Riss [Fri, 13 Feb 2015 23:18:27 +0000 (23:18 +0000)]
[dsymutil] constify trivial function.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@229180 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoDWARFUnit: Add a couple of helpers to access the DIE array.
Frederic Riss [Fri, 13 Feb 2015 23:18:24 +0000 (23:18 +0000)]
DWARFUnit: Add a couple of helpers to access the DIE array.

To be used in dsymutil (or any other client that wants to take
advantage of the fact that DIEs are stored in a vector).

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@229179 91177308-0d34-0410-b5e6-96231b3b80d8

9 years ago[dsymutil] Find relocations that correspond to debug map entries.
Frederic Riss [Fri, 13 Feb 2015 23:18:22 +0000 (23:18 +0000)]
[dsymutil] Find relocations that correspond to debug map entries.

These 'valid relocations' in the debug_info section will be how
dsymutil identifies the DIEs it needs to keep in the linked debug
information.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@229178 91177308-0d34-0410-b5e6-96231b3b80d8

9 years ago[dsymutil] Add DebugMapObject::lookupObjectAddress()
Frederic Riss [Fri, 13 Feb 2015 23:18:16 +0000 (23:18 +0000)]
[dsymutil] Add DebugMapObject::lookupObjectAddress()

It turns out the debug map will be interogated both by name and
by object file address. Add the latter capability.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@229177 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoFixing broken bots.
Chris Bieneman [Fri, 13 Feb 2015 23:10:31 +0000 (23:10 +0000)]
Fixing broken bots.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@229176 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoMinor tweak to MDA
Philip Reames [Fri, 13 Feb 2015 23:08:37 +0000 (23:08 +0000)]
Minor tweak to MDA

Two minor tweaks I noticed when reading through the code:
- No need to recompute begin() on every iteration.  We're not modifying the instructions in this loop.
- We can ignore PHINodes and Dbg intrinsics.  The current code does this anyways, but it will spend slightly more time doing so and will count towards the limit of instructions in the block.  It seems really silly to give up due the presence of PHIs...

Differential Revision: http://reviews.llvm.org/D7624

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@229175 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoNFC. Moving the RegisteredOptionCategories global into the CommandLineParser class.
Chris Bieneman [Fri, 13 Feb 2015 22:54:32 +0000 (22:54 +0000)]
NFC. Moving the RegisteredOptionCategories global into the CommandLineParser class.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@229172 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoNFC. clang-format wants to change this from two lines to one.
Chris Bieneman [Fri, 13 Feb 2015 22:54:29 +0000 (22:54 +0000)]
NFC. clang-format wants to change this from two lines to one.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@229171 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoNFC. More code cleanup making LookupOption a member of the CommandLineParser.
Chris Bieneman [Fri, 13 Feb 2015 22:54:27 +0000 (22:54 +0000)]
NFC. More code cleanup making LookupOption a member of the CommandLineParser.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@229170 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoThe base pointer save offset can be computed at initialization time,
Eric Christopher [Fri, 13 Feb 2015 22:48:53 +0000 (22:48 +0000)]
The base pointer save offset can be computed at initialization time,
do so and fix up the calls.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@229169 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoMove the target machine variable so that it's initialized early
Eric Christopher [Fri, 13 Feb 2015 22:48:51 +0000 (22:48 +0000)]
Move the target machine variable so that it's initialized early
enough we can use it to initialize frame lowering.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@229168 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoStash the TargetMachine on the subtarget so we can access it later.
Eric Christopher [Fri, 13 Feb 2015 22:23:04 +0000 (22:23 +0000)]
Stash the TargetMachine on the subtarget so we can access it later.
Clean up a subtarget function that has it passed in while we're at it.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@229164 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoPPC LinkageSize can be computed at initialization time, do so.
Eric Christopher [Fri, 13 Feb 2015 22:22:57 +0000 (22:22 +0000)]
PPC LinkageSize can be computed at initialization time, do so.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@229163 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoTriple: Make setEnvironment not override the object format
Reid Kleckner [Fri, 13 Feb 2015 22:05:50 +0000 (22:05 +0000)]
Triple: Make setEnvironment not override the object format

Discovered by Halide users who had C++ code like this:
  Triple.setArch(Triple::x86);
  Triple.setOS(Triple::Windows);
  Triple.setObjectFormat(Triple::ELF);
  Triple.setEnvironment(Triple::MSVC);

This would produce the stringified triple of x86-windows-msvc, instead
of the x86-windows-msvc-elf string needed to run MCJIT.

With this change, they retain the -elf suffix.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@229160 91177308-0d34-0410-b5e6-96231b3b80d8

9 years ago[SSE/AVX] Use multiclasses to reduce the mass of scalar math patterns; NFCI
Sanjay Patel [Fri, 13 Feb 2015 21:52:42 +0000 (21:52 +0000)]
[SSE/AVX] Use multiclasses to reduce the mass of scalar math patterns; NFCI

This takes the preposterous number of patterns in this section
that were last added to in r219033 down to just plain obnoxious.

With a little more work, we might get this down to just comical.

I've added more test cases to the existing file that checks these
patterns, but it seems that some of these patterns simply don't
exist with today's shuffle lowering.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@229158 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoFix R600 test deadlock on Windows by giving FileCheck an argument
Reid Kleckner [Fri, 13 Feb 2015 21:27:28 +0000 (21:27 +0000)]
Fix R600 test deadlock on Windows by giving FileCheck an argument

llc would hang trying to write output to a full pipe that FileCheck
wasn't reading. FileCheck wasn't reading from stdin because it needs a
file as a positional argument.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@229157 91177308-0d34-0410-b5e6-96231b3b80d8

9 years ago[PM] Fix a compile error I introduced in r229094 and didn't notice
Chandler Carruth [Fri, 13 Feb 2015 21:10:58 +0000 (21:10 +0000)]
[PM] Fix a compile error I introduced in r229094 and didn't notice
because I didn't have binutils set up properly to build the gold plugin.

Fixes PR22581 which was filed because this broke the build for folks
relying on the plugin. Very sorry! =]

I've gotten the plugin stuff building now as well so it shouldn't keep
happening.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@229156 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agofix typos; NFC
Sanjay Patel [Fri, 13 Feb 2015 21:07:22 +0000 (21:07 +0000)]
fix typos; NFC

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@229155 91177308-0d34-0410-b5e6-96231b3b80d8

9 years ago[modules] Mark include/llvm/Support/Dwarf.def as being a textually-included header.
Richard Smith [Fri, 13 Feb 2015 21:06:45 +0000 (21:06 +0000)]
[modules] Mark include/llvm/Support/Dwarf.def as being a textually-included header.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@229154 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoClean up some inappropriate choices of type in the bitcode reader. None of
Richard Smith [Fri, 13 Feb 2015 21:05:11 +0000 (21:05 +0000)]
Clean up some inappropriate choices of type in the bitcode reader. None of
these are expected to fix any 64->32 bit real truncation issues.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@229153 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoR600/SI: Refactor SOP1 classes
Tom Stellard [Fri, 13 Feb 2015 21:02:37 +0000 (21:02 +0000)]
R600/SI: Refactor SOP1 classes

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@229152 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoR600/SI: Lowercase register names
Tom Stellard [Fri, 13 Feb 2015 21:02:36 +0000 (21:02 +0000)]
R600/SI: Lowercase register names

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@229151 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoR600/SI: Remove some unused TableGen classes
Tom Stellard [Fri, 13 Feb 2015 21:02:33 +0000 (21:02 +0000)]
R600/SI: Remove some unused TableGen classes

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@229150 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoReapply r229142 with some enable_if magic to avoid memcpying between differing types.
Benjamin Kramer [Fri, 13 Feb 2015 20:45:14 +0000 (20:45 +0000)]
Reapply r229142 with some enable_if magic to avoid memcpying between differing types.

Original commit message:
SmallVector: Resolve a long-standing fixme by using the existing unitialized_copy dispatch.

This makes append() use memcpy for trivially copyable types.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@229149 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoRevert r229142. It breaks the world for unknown reasons.
Benjamin Kramer [Fri, 13 Feb 2015 19:45:28 +0000 (19:45 +0000)]
Revert r229142. It breaks the world for unknown reasons.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@229144 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoIncrease the CPU time timeout for testing from 10 to 20 minutes, to
Dimitry Andric [Fri, 13 Feb 2015 19:45:19 +0000 (19:45 +0000)]
Increase the CPU time timeout for testing from 10 to 20 minutes, to
compensate for slow machines, and the growing number of tests.

Prodded by: Hans Wennborg

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@229143 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoSmallVector: Resolve a long-standing fixme by using the existing unitialized_copy...
Benjamin Kramer [Fri, 13 Feb 2015 19:20:39 +0000 (19:20 +0000)]
SmallVector: Resolve a long-standing fixme by using the existing unitialized_copy dispatch.

This makes append() use memcpy for trivially copyable types.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@229142 91177308-0d34-0410-b5e6-96231b3b80d8

9 years ago[mips] Refactor and simplify MipsSEDAGToDAGISel::selectIntAddrLSL2MM(). NFC.
Vasileios Kalintiris [Fri, 13 Feb 2015 19:14:22 +0000 (19:14 +0000)]
[mips] Refactor and simplify MipsSEDAGToDAGISel::selectIntAddrLSL2MM(). NFC.

Reviewers: dsanders

Subscribers: llvm-commits

Differential Revision: http://reviews.llvm.org/D7618

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@229140 91177308-0d34-0410-b5e6-96231b3b80d8

9 years ago[mips] Use isa<> instead of dyn_cast<> with unused value. NFC.
Vasileios Kalintiris [Fri, 13 Feb 2015 19:12:16 +0000 (19:12 +0000)]
[mips] Use isa<> instead of dyn_cast<> with unused value. NFC.

Reviewers: dsanders

Subscribers: llvm-commits

Differential Revision: http://reviews.llvm.org/D7615

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@229138 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoR600/SI: Remove handling of fpimm
Matt Arsenault [Fri, 13 Feb 2015 19:05:07 +0000 (19:05 +0000)]
R600/SI: Remove handling of fpimm

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@229136 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoR600/SI: Allow f64 inline immediates in i64 operands
Matt Arsenault [Fri, 13 Feb 2015 19:05:03 +0000 (19:05 +0000)]
R600/SI: Allow f64 inline immediates in i64 operands

This requires considering the size of the operand when
checking immediate legality.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@229135 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoR600/SI: Minor test scheduling fixes
Matt Arsenault [Fri, 13 Feb 2015 19:04:56 +0000 (19:04 +0000)]
R600/SI: Minor test scheduling fixes

This prevents these from failing in a later commit.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@229134 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoFix -Wunused-variable warning.
Zachary Turner [Fri, 13 Feb 2015 18:11:49 +0000 (18:11 +0000)]
Fix -Wunused-variable warning.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@229130 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agollvm-pdbdump: Improve printing of functions and signatures.
Zachary Turner [Fri, 13 Feb 2015 17:57:09 +0000 (17:57 +0000)]
llvm-pdbdump: Improve printing of functions and signatures.

This correctly prints the function pointers, and also prints
function signatures for symbols as opposed to just types.  So
actual functions in your program will now be printed with full
name and signature, as opposed to just name as before.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@229129 91177308-0d34-0410-b5e6-96231b3b80d8

9 years ago[mips][microMIPS] Delay slot filler: Replace the microMIPS JR with the JRC
Jozef Kolek [Fri, 13 Feb 2015 17:51:27 +0000 (17:51 +0000)]
[mips][microMIPS] Delay slot filler: Replace the microMIPS JR with the JRC

This patch adds functionality in MIPS delay slot filler such as if delay slot
filler have to put NOP instruction into the delay slot of microMIPS JR
instruction, then instead of emitting NOP this instruction is replaced by
compact jump instruction JRC.

Differential Revision: http://reviews.llvm.org/D7522

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@229128 91177308-0d34-0410-b5e6-96231b3b80d8

9 years ago[InstCombine] Fix regression introduced at r227197.
Andrea Di Biagio [Fri, 13 Feb 2015 16:33:34 +0000 (16:33 +0000)]
[InstCombine] Fix regression introduced at r227197.

This patch fixes a problem I accidentally introduced in an instruction combine
on select instructions added at r227197. That revision taught the instruction
combiner how to fold a cttz/ctlz followed by a icmp plus select into a single
cttz/ctlz with flag 'is_zero_undef' cleared.

However, the new rule added at r227197 would have produced wrong results in the
case where a cttz/ctlz with flag 'is_zero_undef' cleared was follwed by a
zero-extend or truncate. In that case, the folded instruction would have
been inserted in a wrong location thus leaving the CFG in an inconsistent
state.

This patch fixes the problem and add two reproducible test cases to
existing test 'InstCombine/select-cmp-cttz-ctlz.ll'.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@229124 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoHelp: Document how to build and install with CMake.
Tom Stellard [Fri, 13 Feb 2015 16:15:32 +0000 (16:15 +0000)]
Help: Document how to build and install with CMake.

Resolves PR21569.

Patch by: Stephen Kelly

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@229122 91177308-0d34-0410-b5e6-96231b3b80d8