David Blaikie [Thu, 19 Sep 2013 23:01:29 +0000 (23:01 +0000)]
DebugInfo: llvm-dwarfdump support for gnu_pubnames section
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@191050
91177308-0d34-0410-b5e6-
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Kai Nacke [Thu, 19 Sep 2013 23:00:28 +0000 (23:00 +0000)]
PR16726: extend rol/ror matching
C-like languages promote types like unsigned short to unsigned int before
performing an arithmetic operation. Currently the rotate matcher in the
DAGCombiner does not consider this situation.
This commit extends the DAGCombiner in the way that the pattern
(or (shl ([az]ext x), (*ext y)), (srl ([az]ext x), (*ext (sub 32, y))))
is folded into
([az]ext (rotl x, y))
The matching is restricted to aext and zext because in this cases the upper
bits are either undefined or known. Test case is included.
This fixes PR16726.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@191049
91177308-0d34-0410-b5e6-
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Kai Nacke [Thu, 19 Sep 2013 22:53:36 +0000 (22:53 +0000)]
Revert PR16726: extend rol/ror matching
There is a buildbot failure. Need to investigate this.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@191048
91177308-0d34-0410-b5e6-
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Kai Nacke [Thu, 19 Sep 2013 22:36:39 +0000 (22:36 +0000)]
PR16726: extend rol/ror matching
C-like languages promote types like unsigned short to unsigned int before
performing an arithmetic operation. Currently the rotate matcher in the
DAGCombiner does not consider this situation.
This commit extends the DAGCombiner in the way that the pattern
(or (shl ([az]ext x), (*ext y)), (srl ([az]ext x), (*ext (sub 32, y))))
is folded into
([az]ext (rotl x, y))
The matching is restricted to aext and zext because in this cases the upper
bits are either undefined or known. Test case is included.
This fixes PR16726.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@191045
91177308-0d34-0410-b5e6-
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David Blaikie [Thu, 19 Sep 2013 22:19:37 +0000 (22:19 +0000)]
DebugInfo: Improve IR annotation comments for GNU pubthings.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@191043
91177308-0d34-0410-b5e6-
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Peter Collingbourne [Thu, 19 Sep 2013 22:15:52 +0000 (22:15 +0000)]
Fix LTO handling of module-level assembly (PR14152).
Patch by Tom Roeder!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@191042
91177308-0d34-0410-b5e6-
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Bill Wendling [Thu, 19 Sep 2013 21:58:20 +0000 (21:58 +0000)]
Add testcase to make sure we don't generate too many jumps for a une compare.
<rdar://problem/
7859988>
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@191040
91177308-0d34-0410-b5e6-
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Benjamin Kramer [Thu, 19 Sep 2013 21:30:00 +0000 (21:30 +0000)]
Unbreak C++03 build.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@191039
91177308-0d34-0410-b5e6-
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Shuxin Yang [Thu, 19 Sep 2013 21:13:46 +0000 (21:13 +0000)]
[Fast-math] Disable "(C1/X)*C2 => (C1*C2)/X" if C1/X has multiple uses.
If "C1/X" were having multiple uses, the only benefit of this
transformation is to potentially shorten critical path. But it is at the
cost of instroducing additional div.
The additional div may or may not incur cost depending on how div is
implemented. If it is implemented using Newton–Raphson iteration, it dosen't
seem to incur any cost (FIXME). However, if the div blocks the entire
pipeline, that sounds to be pretty expensive. Let CodeGen to take care
this transformation.
This patch sees 6% on a benchmark.
rdar://
15032743
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@191037
91177308-0d34-0410-b5e6-
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Benjamin Kramer [Thu, 19 Sep 2013 20:59:04 +0000 (20:59 +0000)]
InstCombine: Don't allow turning vector-of-pointer loads into vector-of-integer.
The code below can't handle any pointers. PR17293.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@191036
91177308-0d34-0410-b5e6-
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David Blaikie [Thu, 19 Sep 2013 20:40:26 +0000 (20:40 +0000)]
Unshift the GDB index/GNU pubnames constants modified in r191025
Based on code review feedback from Eric Christopher, unshifting these
constants as they can appear in the gdb_index itself, shifted a further
24 bits. This means that keeping them preshifted is a bit inflexible, so
let's not do that.
Given the motivation, wrap up some nicer enums, more type safety, and
some utility functions.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@191035
91177308-0d34-0410-b5e6-
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Anders Waldenborg [Thu, 19 Sep 2013 19:55:06 +0000 (19:55 +0000)]
llvm-c: Add LLVMGetPointerToFunction
Differential Revision: http://llvm-reviews.chandlerc.com/D1715
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@191030
91177308-0d34-0410-b5e6-
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Anders Waldenborg [Thu, 19 Sep 2013 19:43:55 +0000 (19:43 +0000)]
llvm-c: Make LLVMGetFirstTarget a proper prototype
This avoids warnings when included in a application that
uses -Wstrict-prototypes.
Differential Revision: http://llvm-reviews.chandlerc.com/D1713
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@191029
91177308-0d34-0410-b5e6-
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Eric Christopher [Thu, 19 Sep 2013 18:41:40 +0000 (18:41 +0000)]
Remove extraneous space, the asm printing infrastructure adds a space
in normally.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@191026
91177308-0d34-0410-b5e6-
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David Blaikie [Thu, 19 Sep 2013 18:39:59 +0000 (18:39 +0000)]
DebugInfo: Simplify gnu_pubnames index computation.
Names open to bikeshedding. Could switch back to the constants being
unshifted, but this way seems a bit easier to work with.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@191025
91177308-0d34-0410-b5e6-
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Yi Jiang [Thu, 19 Sep 2013 17:48:48 +0000 (17:48 +0000)]
X86 horizontal vector reduction cost model
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@191021
91177308-0d34-0410-b5e6-
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David Blaikie [Thu, 19 Sep 2013 17:33:35 +0000 (17:33 +0000)]
Remove unnecessary conditional operators performing bool->bool conversion.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@191020
91177308-0d34-0410-b5e6-
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David Blaikie [Thu, 19 Sep 2013 17:27:48 +0000 (17:27 +0000)]
Fix a typo and simplify a boolean expression.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@191018
91177308-0d34-0410-b5e6-
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Shuxin Yang [Thu, 19 Sep 2013 17:22:51 +0000 (17:22 +0000)]
GVN proceeds in the presence of dead code.
This is how it ignores the dead code:
1) When a dead branch target, say block B, is identified, all the
blocks dominated by B is dead as well.
2) The PHIs of those blocks in dominance-frontier(B) is updated such
that the operands corresponding to dead predecessors are replaced
by "UndefVal".
Using lattice's jargon, the "UndefVal" is the "Top" in essence.
Phi node like this "phi(v1 bb1, undef xx)" will be optimized into
"v1" if v1 is constant, or v1 is an instruction which dominate this
PHI node.
3) When analyzing the availability of a load L, all dead mem-ops which
L depends on disguise as a load which evaluate exactly same value as L.
4) The dead mem-ops will be materialized as "UndefVal" during code motion.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@191017
91177308-0d34-0410-b5e6-
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Reid Kleckner [Thu, 19 Sep 2013 17:18:35 +0000 (17:18 +0000)]
msbuild: Set _MSC_VER to match the CRT we're using
Various Windows SDK headers use _MSC_VER values to figure out what
version of the VC++ headers they're using, in particular for SAL macros.
Patch by Paul Hampson!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@191015
91177308-0d34-0410-b5e6-
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Shuxin Yang [Thu, 19 Sep 2013 17:18:35 +0000 (17:18 +0000)]
Add function DominatorTree::getDescendants().
As its name suggests, this function will return all basic blocks
dominated by a given block.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@191014
91177308-0d34-0410-b5e6-
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Reid Kleckner [Thu, 19 Sep 2013 16:50:40 +0000 (16:50 +0000)]
Include an LLVM-vs2012_xp toolset in the MSBuild integration
Patch by Paul Hampson!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@191010
91177308-0d34-0410-b5e6-
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Evgeniy Stepanov [Thu, 19 Sep 2013 15:22:35 +0000 (15:22 +0000)]
[msan] Wrap indirect functions.
Adds a flag to the MemorySanitizer pass that enables runtime rewriting of
indirect calls. This is part of MSanDR implementation and is needed to return
control to the DynamiRio-based helper tool on transition between instrumented
and non-instrumented modules. Disabled by default.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@191006
91177308-0d34-0410-b5e6-
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Benjamin Kramer [Thu, 19 Sep 2013 13:28:20 +0000 (13:28 +0000)]
DAGCombiner: Don't fold vector muls with constants that look like a splat of a power of 2 but differ in bit width.
PR17283.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@191000
91177308-0d34-0410-b5e6-
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Justin Holewinski [Thu, 19 Sep 2013 13:14:44 +0000 (13:14 +0000)]
[NVPTX] Make constant vector test case endian-independent
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@190998
91177308-0d34-0410-b5e6-
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Justin Holewinski [Thu, 19 Sep 2013 12:51:46 +0000 (12:51 +0000)]
[NVPTX] Support constant vector globals
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@190997
91177308-0d34-0410-b5e6-
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Amara Emerson [Thu, 19 Sep 2013 11:59:01 +0000 (11:59 +0000)]
[ARMv8] Add support for the v8 cryptography extensions.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@190996
91177308-0d34-0410-b5e6-
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Tim Northover [Thu, 19 Sep 2013 11:33:53 +0000 (11:33 +0000)]
X86: FrameIndex addressing modes do have a base register.
When selecting the DAG (add (WrapperRIP ...), (FrameIndex ...)), X86 code had
spotted the FrameIndex possibility and was working out whether it could fold
the WrapperRIP into this.
The test for forming a %rip version is notionally whether we already have a
base or index register (%rip precludes both), but we were forgetting to account
for the register that would be inserted later to access the frame.
rdar://problem/
15024520
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@190995
91177308-0d34-0410-b5e6-
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Andrew Trick [Thu, 19 Sep 2013 06:02:43 +0000 (06:02 +0000)]
Revert "Encapsulate PassManager debug flags to avoid static init and cxa_exit."
Working on a better solution to this.
This reverts commit
7d4e9934e7ca83094c5cf41346966c8350179ff2.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@190990
91177308-0d34-0410-b5e6-
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Andrew Trick [Wed, 18 Sep 2013 23:31:16 +0000 (23:31 +0000)]
Encapsulate PassManager debug flags to avoid static init and cxa_exit.
This puts all the global PassManager debugging flags, like
-print-after-all and -time-passes, behind a managed static. This
eliminates their static initializers and, more importantly, exit-time
destructors.
The only behavioral change I anticipate is that tools need to
initialize the PassManager before parsing the command line in order to
export these options, which makes sense. Tools that already initialize
the standard passes (opt/llc) don't need to do anything new.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@190974
91177308-0d34-0410-b5e6-
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Andrew Trick [Wed, 18 Sep 2013 23:31:10 +0000 (23:31 +0000)]
whitespace
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@190973
91177308-0d34-0410-b5e6-
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Reed Kotler [Wed, 18 Sep 2013 22:46:09 +0000 (22:46 +0000)]
Fix two issues regarding Got pointer (GP) setup.
1) make sure that the first two instructions of the sequence cannot
separate from each other. The linker requires that they be sequential.
If they get separated, it can still work but it will not work in all
cases because the first of the instructions mostly involves the hi part
of the pc relative offset and that part changes slowly. You would have
to be at the right boundary for this to matter.
2) make sure that this sequence begins on a longword boundary.
There appears to be a bug in binutils which makes some of these calculations
get messed up if the instruction sequence does not begin on a longword
boundary. This is being investigated with the appropriate binutils folks.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@190966
91177308-0d34-0410-b5e6-
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Adrian Prantl [Wed, 18 Sep 2013 22:08:59 +0000 (22:08 +0000)]
Debug info: Get rid of the VLA indirection hack in FastISel.
Use the DIVariable::isIndirect() flag set by the frontend instead of
guessing whether to set the machine location's indirection bit.
Paired commit with CFE.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@190961
91177308-0d34-0410-b5e6-
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Preston Gurd [Wed, 18 Sep 2013 21:39:33 +0000 (21:39 +0000)]
Attempt to fix llvm-ppc64-linux2 buildbot failure by adding
-march=x86 to SLM test.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@190958
91177308-0d34-0410-b5e6-
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Preston Gurd [Wed, 18 Sep 2013 21:08:09 +0000 (21:08 +0000)]
Verify that llvm can generate the prefetchw instruction when the CPU is
Atom Silvermont.
Patch by Sriram Murali.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@190957
91177308-0d34-0410-b5e6-
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Galina Kistanova [Wed, 18 Sep 2013 18:39:38 +0000 (18:39 +0000)]
Remove empty dir.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@190952
91177308-0d34-0410-b5e6-
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Galina Kistanova [Wed, 18 Sep 2013 17:58:41 +0000 (17:58 +0000)]
Remove empty dir.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@190948
91177308-0d34-0410-b5e6-
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Filip Pizlo [Wed, 18 Sep 2013 16:40:14 +0000 (16:40 +0000)]
Make DynamicLibrary use ManagedStatic. This is pretty simple and should just work as
advertised - but it does have the caveat that calls to DynamicLibrary::AddSymbol will
"reset" if you shutdown llvm and try to come back for seconds. This is a subtle
behavior change, but I'm assuming that nobody is affected by it.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@190946
91177308-0d34-0410-b5e6-
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Chandler Carruth [Wed, 18 Sep 2013 14:11:11 +0000 (14:11 +0000)]
More XCore TTI cleanup -- remove an unused private field flagged by
-Wunused-private-field with Clang.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@190941
91177308-0d34-0410-b5e6-
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Chandler Carruth [Wed, 18 Sep 2013 14:08:30 +0000 (14:08 +0000)]
Name the XCore target-specific subdirectories canonically.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@190940
91177308-0d34-0410-b5e6-
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Kostya Serebryany [Wed, 18 Sep 2013 14:07:14 +0000 (14:07 +0000)]
[asan] call __asan_stack_malloc_N only if use-after-return detection is enabled with the run-time option
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@190939
91177308-0d34-0410-b5e6-
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NAKAMURA Takumi [Wed, 18 Sep 2013 13:56:16 +0000 (13:56 +0000)]
A couple of tests, in llvm/test/Transforms/*/xcore, are XCore-specific. They should be excluded when XCore is not built.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@190938
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NAKAMURA Takumi [Wed, 18 Sep 2013 12:59:41 +0000 (12:59 +0000)]
Target/XCore/CMakeLists.txt: Add XCoreTargetTransformInfo.cpp.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@190937
91177308-0d34-0410-b5e6-
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Robert Lytton [Wed, 18 Sep 2013 12:43:35 +0000 (12:43 +0000)]
Prevent LoopVectorizer and SLPVectorizer running if the target has no vector registers.
XCore target: Add XCoreTargetTransformInfo
This is where getNumberOfRegisters() resides, which in turn returns the
number of vector registers (=0).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@190936
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Andrea Di Biagio [Wed, 18 Sep 2013 12:06:59 +0000 (12:06 +0000)]
Re-add tests from r179291 which were accidentally removed by r181177.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@190934
91177308-0d34-0410-b5e6-
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Richard Sandiford [Wed, 18 Sep 2013 09:56:40 +0000 (09:56 +0000)]
[SystemZ] Add unsigned compare-and-branch instructions
For some reason I never got around to adding these at the same time as
the signed versions. No idea why.
I'm not sure whether this SystemZII::BranchC* stuff is useful, or whether
it should just be replaced with an "is normal" flag. I'll leave that
for later though.
There are some boundary conditions that can be tweaked, such as preferring
unsigned comparisons for equality with [128, 256), and "<= 255" over "< 256",
but again I'll leave those for a separate patch.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@190930
91177308-0d34-0410-b5e6-
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Joey Gouly [Wed, 18 Sep 2013 09:46:49 +0000 (09:46 +0000)]
'svn add' the test cases.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@190929
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Joey Gouly [Wed, 18 Sep 2013 09:45:55 +0000 (09:45 +0000)]
[ARMv8] Add CRC instructions.
Patch by Bradley Smith!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@190928
91177308-0d34-0410-b5e6-
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Filip Pizlo [Wed, 18 Sep 2013 06:37:55 +0000 (06:37 +0000)]
Revert r190921. It broke Windows.
I'll roll it back in when I have a chance to look at it in detail.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@190923
91177308-0d34-0410-b5e6-
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Filip Pizlo [Wed, 18 Sep 2013 06:03:27 +0000 (06:03 +0000)]
Make DynamicLibrary use ManagedStatic. This is pretty simple and should just work as
advertised - but it does have the caveat that calls to DynamicLibrary::AddSymbol will
"reset" if you shutdown llvm and try to come back for seconds. This is a subtle
behavior change, but I'm assuming that nobody is affected by it.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@190921
91177308-0d34-0410-b5e6-
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Craig Topper [Wed, 18 Sep 2013 06:01:53 +0000 (06:01 +0000)]
Prevent extra calls to ToggleFeature for Feature64Bit and FeatureCMOV if they've already been enabled. The extra call ends up clearing the bit in FeatureBits since its a 'toggle'. Can't prove that anything was broken because of this since I don't think the FeatureBits for these are used.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@190920
91177308-0d34-0410-b5e6-
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Craig Topper [Wed, 18 Sep 2013 05:54:09 +0000 (05:54 +0000)]
Fix X86 subtarget to not overwrite the autodetected features by calling InitMCProcessorInfo right after detecting them. Instead add a new function that only updates the scheduling model and call that.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@190919
91177308-0d34-0410-b5e6-
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Craig Topper [Wed, 18 Sep 2013 04:10:17 +0000 (04:10 +0000)]
Revert accidental commit I had to make to get the test case in PR17268 to still work correctly.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@190917
91177308-0d34-0410-b5e6-
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Craig Topper [Wed, 18 Sep 2013 03:55:53 +0000 (03:55 +0000)]
Lift alignment restrictions for load/store folding on VINSERTF128/VEXTRACTF128. Fixes PR17268.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@190916
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David Blaikie [Wed, 18 Sep 2013 00:11:27 +0000 (00:11 +0000)]
ifndef NDEBUG-out an asserts-only constant committed in r190863
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@190905
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Matt Arsenault [Tue, 17 Sep 2013 23:23:16 +0000 (23:23 +0000)]
Fix a constant folding address space place I missed.
If address space 0 was smaller than the address space
in a constant inttoptr/ptrtoint pair, the wrong mask size
would be used.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@190899
91177308-0d34-0410-b5e6-
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Reid Kleckner [Tue, 17 Sep 2013 23:18:05 +0000 (23:18 +0000)]
COFF: Ensure that objects produced by LLVM link with /safeseh
Summary:
We indicate that the object files are safe by emitting a @feat.00
absolute address symbol. The address is presumably interpreted as a
bitfield of features that the compiler would like to enable. Bit 0 is
documented in the PE COFF spec to opt in to "registered SEH", which is
what /safeseh enables.
LLVM's object files are safe by default because LLVM doesn't know how to
produce SEH handlers.
Reviewers: Bigcheese
CC: llvm-commits
Differential Revision: http://llvm-reviews.chandlerc.com/D1691
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@190898
91177308-0d34-0410-b5e6-
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Matt Arsenault [Tue, 17 Sep 2013 23:15:35 +0000 (23:15 +0000)]
Missed using check type enum in one place
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@190897
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Matt Arsenault [Tue, 17 Sep 2013 22:45:57 +0000 (22:45 +0000)]
Use function's argument instead of the global flag.
For now it happens the argument is always the same.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@190896
91177308-0d34-0410-b5e6-
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Matt Arsenault [Tue, 17 Sep 2013 22:30:02 +0000 (22:30 +0000)]
FileCheck refactor: use enum instead of bunch of bools
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@190893
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Quentin Colombet [Tue, 17 Sep 2013 22:01:26 +0000 (22:01 +0000)]
Revert the load slicing done in r190870.
To avoid regressions with bitfield optimizations, this slicing should take place
later, like ISel time.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@190891
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Reid Kleckner [Tue, 17 Sep 2013 21:24:44 +0000 (21:24 +0000)]
COFF: Emit all MCSymbols rather than filtering out some of them
In particular, this means we emit non-external symbols defined to
variables, such as aliases or absolute addresses.
This is needed to implement /safeseh, and it appears there was some
confusion about what symbols to emit previously.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@190888
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Reid Kleckner [Tue, 17 Sep 2013 21:24:02 +0000 (21:24 +0000)]
COFF: Remove ExportSection, which has been dead since r114823
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@190887
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Eric Christopher [Tue, 17 Sep 2013 21:13:57 +0000 (21:13 +0000)]
Move variable into assert to avoid unused variable warning.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@190886
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Matt Arsenault [Tue, 17 Sep 2013 21:10:14 +0000 (21:10 +0000)]
Cleanup handling of constant function casts.
Some of this code is no longer necessary since int<->ptr casts are no
longer occur as of r187444.
This also fixes handling vectors of pointers, and adds a bunch of new
testcases for vectors and address spaces.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@190885
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Bill Schmidt [Tue, 17 Sep 2013 20:22:05 +0000 (20:22 +0000)]
[PowerPC] Add a FIXME.
Documenting a design choice to generate only medium model sequences for TLS
addresses at this time. Small and large code models could be supported if
necessary.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@190883
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Bill Schmidt [Tue, 17 Sep 2013 20:03:25 +0000 (20:03 +0000)]
[PowerPC] Fix problems with large code model (PR17169).
Large code model on PPC64 requires creating and referencing TOC entries when
using the addis/ld form of addressing. This was not being done in all cases.
The changes in this patch to PPCAsmPrinter::EmitInstruction() fix this. Two
test cases are also modified to reflect this requirement.
Fast-isel was not creating correct code for loading floating-point constants
using large code model. This also requires the addis/ld form of addressing.
Previously we were using the addis/lfd shortcut which is only applicable to
medium code model. One test case is modified to reflect this requirement.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@190882
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Arnold Schwaighofer [Tue, 17 Sep 2013 18:06:50 +0000 (18:06 +0000)]
Costmodel: Add support for horizontal vector reductions
Upcoming SLP vectorization improvements will want to be able to estimate costs
of horizontal reductions. Add infrastructure to support this.
We model reductions as a series of (shufflevector,add) tuples ultimately
followed by an extractelement. For example, for an add-reduction of <4 x float>
we could generate the following sequence:
(v0, v1, v2, v3)
\ \ / /
\ \ /
+ +
(v0+v2, v1+v3, undef, undef)
\ /
((v0+v2) + (v1+v3), undef, undef)
%rdx.shuf = shufflevector <4 x float> %rdx, <4 x float> undef,
<4 x i32> <i32 2, i32 3, i32 undef, i32 undef>
%bin.rdx = fadd <4 x float> %rdx, %rdx.shuf
%rdx.shuf7 = shufflevector <4 x float> %bin.rdx, <4 x float> undef,
<4 x i32> <i32 1, i32 undef, i32 undef, i32 undef>
%bin.rdx8 = fadd <4 x float> %bin.rdx, %rdx.shuf7
%r = extractelement <4 x float> %bin.rdx8, i32 0
This commit adds a cost model interface "getReductionCost(Opcode, Ty, Pairwise)"
that will allow clients to ask for the cost of such a reduction (as backends
might generate more efficient code than the cost of the individual instructions
summed up). This interface is excercised by the CostModel analysis pass which
looks for reduction patterns like the one above - starting at extractelements -
and if it sees a matching sequence will call the cost model interface.
We will also support a second form of pairwise reduction that is well supported
on common architectures (haddps, vpadd, faddp).
(v0, v1, v2, v3)
\ / \ /
(v0+v1, v2+v3, undef, undef)
\ /
((v0+v1)+(v2+v3), undef, undef, undef)
%rdx.shuf.0.0 = shufflevector <4 x float> %rdx, <4 x float> undef,
<4 x i32> <i32 0, i32 2 , i32 undef, i32 undef>
%rdx.shuf.0.1 = shufflevector <4 x float> %rdx, <4 x float> undef,
<4 x i32> <i32 1, i32 3, i32 undef, i32 undef>
%bin.rdx.0 = fadd <4 x float> %rdx.shuf.0.0, %rdx.shuf.0.1
%rdx.shuf.1.0 = shufflevector <4 x float> %bin.rdx.0, <4 x float> undef,
<4 x i32> <i32 0, i32 undef, i32 undef, i32 undef>
%rdx.shuf.1.1 = shufflevector <4 x float> %bin.rdx.0, <4 x float> undef,
<4 x i32> <i32 1, i32 undef, i32 undef, i32 undef>
%bin.rdx.1 = fadd <4 x float> %rdx.shuf.1.0, %rdx.shuf.1.1
%r = extractelement <4 x float> %bin.rdx.1, i32 0
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@190876
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Arnold Schwaighofer [Tue, 17 Sep 2013 17:03:29 +0000 (17:03 +0000)]
SLPVectorizer: Don't vectorize phi nodes that use invoke values
We can't insert an insertelement after an invoke. We would have to split a
critical edge. So when we see a phi node that uses an invoke we just give up.
radar://
14990770
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@190871
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Quentin Colombet [Tue, 17 Sep 2013 16:57:34 +0000 (16:57 +0000)]
[InstCombiner] Slice a big load in two loads when the elements are next to each
other in memory.
The motivation was to get rid of truncate and shift right instructions that get
in the way of paired load or floating point load.
E.g.,
Consider the following example:
struct Complex {
float real;
float imm;
};
When accessing a complex, llvm was generating a 64-bits load and the imm field
was obtained by a trunc(lshr) sequence, resulting in poor code generation, at
least for x86.
The idea is to declare that two load instructions is the canonical form for
loading two arithmetic type, which are next to each other in memory.
Two scalar loads at a constant offset from each other are pretty
easy to detect for the sorts of passes that like to mess with loads.
<rdar://problem/
14477220>
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@190870
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Preston Gurd [Tue, 17 Sep 2013 16:53:36 +0000 (16:53 +0000)]
Remove unused code, which had been commented out.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@190869
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Serge Pavlov [Tue, 17 Sep 2013 16:24:42 +0000 (16:24 +0000)]
Added documentation to getMemsetStores.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@190866
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Ben Langmuir [Tue, 17 Sep 2013 13:44:39 +0000 (13:44 +0000)]
Add llvm.x86.* intrinsics for Intel SHA Extensions
Add llvm.x86.* intrinsics for all of the Intel SHA Extensions instructions, as
well as tests. Also remove mayLoad and hasSideEffects, which can be inferred
from the instruction patterns.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@190864
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Kostya Serebryany [Tue, 17 Sep 2013 12:14:50 +0000 (12:14 +0000)]
[asan] inline the calls to __asan_stack_free_* with small sizes. Yet another 10%-20% speedup for use-after-return
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@190863
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Joey Gouly [Tue, 17 Sep 2013 09:54:57 +0000 (09:54 +0000)]
[ARM] Fix the deprecation of MCR encodings that map to CP15{ISB,DSB,DMB}.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@190862
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Stepan Dyatkovskiy [Tue, 17 Sep 2013 09:36:11 +0000 (09:36 +0000)]
Bugfix for PR17099:
Wrong cast operation.
MergeFunctions emits Bitcast instead of pointer-to-integer operation.
Patch fixes MergeFunctions::writeThunk function. It replaces
unconditional Bitcast creation with "Value* createCast(...)" method, that
checks operand types and selects proper instruction.
See unit-test as example.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@190859
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Elena Demikhovsky [Tue, 17 Sep 2013 07:34:34 +0000 (07:34 +0000)]
AVX-512: Converted to Unix style
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@190851
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Craig Topper [Tue, 17 Sep 2013 06:50:11 +0000 (06:50 +0000)]
Add AES and SHA instructions to the load folding tables.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@190850
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Craig Topper [Tue, 17 Sep 2013 06:05:17 +0000 (06:05 +0000)]
Fix column alignment. No functional change.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@190849
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Craig Topper [Tue, 17 Sep 2013 03:34:09 +0000 (03:34 +0000)]
Make a more clear AVX-512 section header that matches similar in the file.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@190843
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Kevin Qin [Tue, 17 Sep 2013 02:21:02 +0000 (02:21 +0000)]
Implement 3 AArch64 neon instructions : umov smov ins.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@190839
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Quentin Colombet [Tue, 17 Sep 2013 00:26:56 +0000 (00:26 +0000)]
[SelectionDAG] Teach the vector scalarizer about TRUNCATE.
When a truncate node defines a legal vector type but uses an illegal
vector type, the legalization process was splitting the vector until
<1 x vector> type, but then it was failing to scalarize the node because
it did not know how to handle TRUNCATE.
<rdar://problem/
14989896>
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@190830
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Adrian Prantl [Tue, 17 Sep 2013 00:15:36 +0000 (00:15 +0000)]
mention command line parameters
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@190827
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Adrian Prantl [Tue, 17 Sep 2013 00:15:33 +0000 (00:15 +0000)]
simplify expression
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@190826
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Adrian Prantl [Mon, 16 Sep 2013 23:48:45 +0000 (23:48 +0000)]
Be sure we run ARM tests only when an ARM backend is present.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@190822
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Adrian Prantl [Mon, 16 Sep 2013 23:29:03 +0000 (23:29 +0000)]
Debug info: Fix PR16736 and rdar://problem/
14990587.
A DBG_VALUE is register-indirect iff the first operand is a register
_and_ the second operand is an immediate.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@190821
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Matt Arsenault [Mon, 16 Sep 2013 22:43:16 +0000 (22:43 +0000)]
MemCpyOptimizer: Use max legal int size instead of pointer size
If there are no legal integers, assume 1 byte.
This makes more sense than using the pointer size as
a guess for the maximum GPR width.
It is conceivable to want to use some 64-bit pointers
on a target where 64-bit integers aren't legal.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@190817
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Preston Gurd [Mon, 16 Sep 2013 22:22:07 +0000 (22:22 +0000)]
Add Atom Silvermont (slm) tests
- check that -mcpu=slm uses the call register indirect optimization
- check that -mcpu=slm runs the scheduler
- check that -mcpu=slm supports the movbe instruction
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@190814
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Jakub Staszak [Mon, 16 Sep 2013 22:03:38 +0000 (22:03 +0000)]
Use reference instead of copy.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@190813
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Jordan Rose [Mon, 16 Sep 2013 21:38:01 +0000 (21:38 +0000)]
[CMake] Hack GetSVN.cmake to handle unusual terminals.
I got a report of a hang in git's helper functions trying to figure out
how to display results of "git svn info" when run inside ninja, even though
the result is immediately piped to grep. This seems to avoid that.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@190808
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Krzysztof Parzyszek [Mon, 16 Sep 2013 21:24:30 +0000 (21:24 +0000)]
Add testcase for r190631
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@190807
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Tim Northover [Mon, 16 Sep 2013 17:33:40 +0000 (17:33 +0000)]
TableGen: fix constness of new comparison function.
libc++ didn't seem to like a non-const call operator.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@190797
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Bill Schmidt [Mon, 16 Sep 2013 17:25:12 +0000 (17:25 +0000)]
[PowerPC] Fix PR17155 - Ignore COPY_TO_REGCLASS during emit.
Fast-isel generates a COPY_TO_REGCLASS for widening f32 to f64, which
is a nop on PPC64. This is needed to keep the register class system
happy, but on the fast-isel path it is not removed before emit as it
is for DAG select. Ignore this op when emitting instructions.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@190795
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Tim Northover [Mon, 16 Sep 2013 16:43:19 +0000 (16:43 +0000)]
TableGen: give asm match classes deterministic order.
TableGen was sorting the entries in some of its internal data
structures by pointer. This order filtered through to the final
matching table and affected the diagnostics produced on bad assembly
occasionally.
It also turns out STL algorithms are ridiculously easy to misuse on
containers with custom order methods. (No bugs before, or now that I
know of, but plenty in the middle).
This should fix the sanitizer bot, which ends up with weird pointers.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@190793
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Tim Northover [Mon, 16 Sep 2013 16:43:16 +0000 (16:43 +0000)]
AsmMatcher: emit subtarget feature enum in deterministic order.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@190792
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Arnold Schwaighofer [Mon, 16 Sep 2013 16:17:24 +0000 (16:17 +0000)]
Don't vectorize if there are outside loop users of the induction variable.
We would have to compute the pre increment value, either by computing it on
every loop iteration or by splitting the edge out of the loop and inserting a
computation for it there.
For now, just give up vectorizing such loops.
Fixes PR17179.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@190790
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Evgeniy Stepanov [Mon, 16 Sep 2013 13:24:32 +0000 (13:24 +0000)]
[msan] Check return value of main().
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@190782
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Vladimir Medic [Mon, 16 Sep 2013 10:29:42 +0000 (10:29 +0000)]
This patch implements Mips load/store instructions from/to coprocessor 2. Test cases are added.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@190780
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Benjamin Kramer [Mon, 16 Sep 2013 10:17:31 +0000 (10:17 +0000)]
ARM: Deduplicate ConstantPoolValues.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@190779
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Daniel Sanders [Mon, 16 Sep 2013 09:25:49 +0000 (09:25 +0000)]
Fix the build for git repositories with multiple remotes.
Summary:
When a git repository had multiple remotes, ${repository} will be set to a multiline string. This causes compilation errors in SVNVersion.inc.
Fix this by limiting the output of utils/GetRepositoryPath to the first remote (which is reasonably likely to be 'origin').
Reviewers: jordan_rose
CC: llvm-commits, t.p.northover
Differential Revision: http://llvm-reviews.chandlerc.com/D1659
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@190778
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