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Rafael Espindola [Fri, 28 Aug 2015 20:33:56 +0000 (20:33 +0000)]
Split the gold tests into X86 and PowerPC directories.
Patch by Than McIntosh!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@246328
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Duncan P. N. Exon Smith [Fri, 28 Aug 2015 20:26:49 +0000 (20:26 +0000)]
DI: Require subprogram definitions to be distinct
As a follow-up to r246098, require `DISubprogram` definitions
(`isDefinition: true`) to be 'distinct'. Specifically, add an assembler
check, a verifier check, and bitcode upgrading logic to combat testcase
bitrot after the `DIBuilder` change.
While working on the testcases, I realized that
test/Linker/subprogram-linkonce-weak-odr.ll isn't relevant anymore. Its
purpose was to check for a corner case in PR22792 where two subprogram
definitions match exactly and share the same metadata node. The new
verifier check, requiring that subprogram definitions are 'distinct',
precludes that possibility.
I updated almost all the IR with the following script:
git grep -l -E -e '= !DISubprogram\(.* isDefinition: true' |
grep -v test/Bitcode |
xargs sed -i '' -e 's/= \(!DISubprogram(.*, isDefinition: true\)/= distinct \1/'
Likely some variant of would work for out-of-tree testcases.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@246327
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Sanjoy Das [Fri, 28 Aug 2015 19:09:34 +0000 (19:09 +0000)]
[IR] Add some asserts to CallInst and InvokeInst; NFCI.
The asserts check that accessors supposed to access call / invoke
arguments only ever access call / invoke arguments.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@246316
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Sanjoy Das [Fri, 28 Aug 2015 19:09:31 +0000 (19:09 +0000)]
[InstCombine] Fix PR24605.
PR24605 is caused due to an incorrect insert point in instcombine's IR
builder. When simplifying
%t = add X Y
...
%m = icmp ... %t
the replacement for %t should be placed before %t, not before %m, as
there could be a use of %t between %t and %m.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@246315
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Chad Rosier [Fri, 28 Aug 2015 18:30:18 +0000 (18:30 +0000)]
Optimize memcmp(x,y,n)==0 for small n and suitably aligned x/y.
http://reviews.llvm.org/D6952
PR20673
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@246313
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Vedant Kumar [Fri, 28 Aug 2015 18:04:20 +0000 (18:04 +0000)]
[test] (NFC) Simplify Transforms/ConstProp/calls.ll
Differential Revision: http://reviews.llvm.org/D12421
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@246312
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Petar Jovanovic [Fri, 28 Aug 2015 18:02:53 +0000 (18:02 +0000)]
[mips64][mcjit] Add N64R6 relocations tests and fix N64R2 tests
This patch adds a test for MIPS64R6 relocations, it corrects check
expressions for R_MIPS_26 and R_MIPS_PC16 relocations in MIPS64R2 test, and
it adds run for big endian in MIPS64R2 test.
Patch by Vladimir Radosavljevic.
Differential Revision: http://reviews.llvm.org/D11217
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@246311
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Petar Jovanovic [Fri, 28 Aug 2015 17:53:26 +0000 (17:53 +0000)]
[mips] Remove incorrect DebugLoc entries from prologue
This has been causing the prologue_end to be incorrectly positioned.
Patch by Vladimir Radosavljevic.
Differential Revision: http://reviews.llvm.org/D11293
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@246309
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Matt Arsenault [Fri, 28 Aug 2015 17:31:28 +0000 (17:31 +0000)]
Make MergeConsecutiveStores look at other stores on same chain
When combiner AA is enabled, look at stores on the same chain.
Non-aliasing stores are moved to the same chain so the existing
code fails because it expects to find an adajcent store on a consecutive
chain.
Because of how DAGCombiner tries these store combines,
MergeConsecutiveStores doesn't see the correct set of stores on the chain
when it visits the other stores. Each store individually has its chain
fixed before trying to merge consecutive stores, and then tries to merge
stores from that point before the other stores have been processed to
have their chains fixed. To fix this, attempt to use FindBetterChain
on any possibly neighboring stores in visitSTORE.
Suppose you have 4 32-bit stores that should be merged into 1 vector
store. One store would be visited first, fixing the chain. What happens is
because not all of the store chains have yet been fixed, 2 of the stores
are merged. The other 2 stores later have their chains fixed,
but because the other stores were already merged, they have different
memory types and merging the two different sized stores is not
supported and would be more difficult to handle.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@246307
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David Majnemer [Fri, 28 Aug 2015 17:19:54 +0000 (17:19 +0000)]
Test case for r246304.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@246306
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JF Bastien [Fri, 28 Aug 2015 16:49:09 +0000 (16:49 +0000)]
Remove Merge Functions pointer comparisons
Summary:
This patch removes two remaining places where pointer value comparisons
are used to order functions: comparing range annotation metadata, and comparing
block address constants. (These are both rare cases, and so no actual
non-determinism was observed from either case).
The fix for range metadata is simple: the annotation always consists of a pair
of integers, so we just order by those integers.
The fix for block addresses is more subtle. Two constants are the same if they
are the same basic block in the same function, or if they refer to corresponding
basic blocks in each respective function. Note that in the first case, merging
is trivially correct. In the second, the correctness of merging relies on the
fact that the the values of block addresses cannot be compared. This change is
actually an enhancement, as these functions could not previously be merged (see
merge-block-address.ll).
There is still a problem with cross function block addresses, in that constants
pointing to a basic block in a merged function is not updated.
This also more robustly compares floating point constants by all fields of their
semantics, and fixes a dyn_cast/cast mixup.
Author: jrkoenig
Reviewers: dschuff, nlewycky, jfb
Subscribers llvm-commits
Differential revision: http://reviews.llvm.org/D12376
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@246305
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David Majnemer [Fri, 28 Aug 2015 16:44:09 +0000 (16:44 +0000)]
[CodeGen] isInTailCallPosition didn't consider readnone tailcalls
A readnone tailcall may still have a chain of computation which follows
it that would invalidate a tailcall lowering. Don't skip the analysis
in such cases.
This fixes PR24613.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@246304
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James Molloy [Fri, 28 Aug 2015 14:40:29 +0000 (14:40 +0000)]
[LoopUtils] Move a private constructor nearer the other private members
This was part of Adam Nemet's review feedback that I forgot to implement.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@246301
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Sanjay Patel [Fri, 28 Aug 2015 14:09:48 +0000 (14:09 +0000)]
[x86] enable machine combiner reassociations for scalar 'and' insts
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@246300
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Davide Italiano [Fri, 28 Aug 2015 12:40:05 +0000 (12:40 +0000)]
[MC] Convert tests to use llvm-readobj --macho-version-min.
As an added bonus this also tests the newly introduced feature.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@246296
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Rui Ueyama [Fri, 28 Aug 2015 10:27:50 +0000 (10:27 +0000)]
llvm-readobj: Dump more info for COFF import libraries.
This patch teaches llvm-readobj to print out COFF import file header fields.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@246291
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Chandler Carruth [Fri, 28 Aug 2015 09:03:52 +0000 (09:03 +0000)]
[SROA] Fix PR24463, a crash I introduced in SROA by allowing it to
handle more allocas with loads past the end of the alloca.
I suspect there are some related crashers with slightly different
patterns, but I'll fix those and add test cases as I find them.
Thanks to David Majnemer for the excellent test case reduction here.
Made this super simple to debug and fix.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@246289
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Rui Ueyama [Fri, 28 Aug 2015 07:48:41 +0000 (07:48 +0000)]
Attempt to unbreak Win32 build.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@246284
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Rui Ueyama [Fri, 28 Aug 2015 07:40:30 +0000 (07:40 +0000)]
Re-apply r246276 - Object: Teach llvm-ar to create symbol table for COFF short import files
This patch includes a fix for a llvm-readobj test. With this patch,
the tool does no longer print out COFF headers for the short import
file, but that's probably desirable because the header for the short
import file is dummy.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@246283
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Steven Wu [Fri, 28 Aug 2015 06:52:00 +0000 (06:52 +0000)]
Revert r246244 and r246243
These two commits cause clang/llvm bootstrap to hang.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@246279
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Rui Ueyama [Fri, 28 Aug 2015 06:03:01 +0000 (06:03 +0000)]
Rollback r246276 - Object: Teach llvm-ar to create symbol table for COFF short import files
This change caused a test for llvm-readobj to fail.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@246277
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Rui Ueyama [Fri, 28 Aug 2015 05:47:46 +0000 (05:47 +0000)]
Object: Teach llvm-ar to create symbol table for COFF short import files.
COFF short import files are special kind of files that contains only
DLL-exported symbol names. That's different from object files because
it has no data except symbol names.
This change implements a SymbolicFile interface for the short import
files so that symbol names can be accessed through that interface.
llvm-ar is now able to read the file and create symbol table entries
for short import files.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@246276
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NAKAMURA Takumi [Fri, 28 Aug 2015 05:38:49 +0000 (05:38 +0000)]
LLVMCodeGen: Update libdeps corresponding to r246236.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@246274
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Peter Collingbourne [Fri, 28 Aug 2015 04:07:52 +0000 (04:07 +0000)]
Tweak XFAIL line for mips.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@246269
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NAKAMURA Takumi [Fri, 28 Aug 2015 03:34:33 +0000 (03:34 +0000)]
Kaleidoscope: Prune __attribute__((used)). Some compilers wouldn't accept one.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@246268
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NAKAMURA Takumi [Fri, 28 Aug 2015 03:32:43 +0000 (03:32 +0000)]
Disable llvm/test/Examples/ for now while investigating.
FIXME:
- Introduce explicit mapping.
- Investigate crash on win32. Could we introduce crash handler in examples?
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@246267
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Peter Collingbourne [Fri, 28 Aug 2015 02:14:15 +0000 (02:14 +0000)]
XFAIL parallel.ll test on MIPS and AArch64 until test failures can be investigated.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@246261
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Ahmed Bougacha [Fri, 28 Aug 2015 01:49:59 +0000 (01:49 +0000)]
[CodeGen] Support (and default to) expanding READCYCLECOUNTER to 0.
For targets that didn't support this, this will let us respect the
langref instead of failing to select.
Note that we don't need to change the 32-bit x86/PPC lowerings (to
account for the result type/# difference) because they're both
custom and bypass type legalization.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@246258
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Joseph Tremoulet [Fri, 28 Aug 2015 01:12:35 +0000 (01:12 +0000)]
[WinEH] Update coloring to handle nested cases cleanly
Summary:
Change the coloring algorithm in WinEHPrepare to visit a funclet's exits
in its parents' contexts and so properly classify the continuations of
nested funclets.
Also change the placement of cloned blocks to be deterministic and to
maintain the relative order of each funclet's blocks.
Add a lit test showing various patterns that require cloning, the last
several of which don't have CHECKs yet because they require cloning
entire funclets which is NYI.
Reviewers: rnk, andrew.w.kaylor, majnemer
Subscribers: llvm-commits
Differential Revision: http://reviews.llvm.org/D12353
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@246245
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Piotr Padlewski [Fri, 28 Aug 2015 01:02:00 +0000 (01:02 +0000)]
Constant propagation after hitting assume(cmp) bugfix
Last time code run into assertion `BBE.isSingleEdge()` in
lib/IR/Dominators.cpp:200.
http://reviews.llvm.org/D12170
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@246244
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Piotr Padlewski [Fri, 28 Aug 2015 01:01:57 +0000 (01:01 +0000)]
Constant propagation after hiting llvm.assume
After hitting @llvm.assume(X) we can:
- propagate equality that X == true
- if X is icmp/fcmp (with eq operation), and one of operand
is constant we can change all variables with constants in the same BasicBlock
http://reviews.llvm.org/D11918
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@246243
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NAKAMURA Takumi [Fri, 28 Aug 2015 00:36:58 +0000 (00:36 +0000)]
[CMake] Fix build on MSVC in r246156.
add_windows_version_resource_file() affects ALL_FILES. OBJLIB shouldn't have *.obj as SOURCES.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@246241
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George Burgess IV [Fri, 28 Aug 2015 00:16:18 +0000 (00:16 +0000)]
Fix: CFLAA -- Mark no-args returns as unknown
Prior to this patch, we hadn't been marking StratifiedSets with the
appropriate StratifiedAttrs when handling the result of no-args call
instructions. This caused us to report NoAlias when handed, for
example, an escaped alloca and a result from an opaque function. Now we
properly mark the return value of said functions.
Thanks again to Chandler, Richard, and Nick for pinging me about this.
Differential review: http://reviews.llvm.org/D12408
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@246240
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Quentin Colombet [Thu, 27 Aug 2015 23:47:10 +0000 (23:47 +0000)]
[AArch64][CollectLOH] Fix a regression that prevented us to detect chains of
more than 2 instructions.
I introduced this regression a while back and did not noticed it because I
somehow forgot to push the initial test cases for the pass!
Fix that as well!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@246239
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Peter Collingbourne [Thu, 27 Aug 2015 23:37:36 +0000 (23:37 +0000)]
CodeGen: Introduce splitCodeGen and teach LTOCodeGenerator to use it.
llvm::splitCodeGen is a function that implements the core of parallel LTO
code generation. It uses llvm::SplitModule to split the module into linkable
partitions and spawning one code generation thread per partition. The function
produces multiple object files which can be linked in the usual way.
This has been threaded through to LTOCodeGenerator (and llvm-lto for testing
purposes). Separate patches will add parallel LTO support to the gold plugin
and lld.
Differential Revision: http://reviews.llvm.org/D12260
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@246236
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Reid Kleckner [Thu, 27 Aug 2015 23:27:47 +0000 (23:27 +0000)]
[WinEH] Add some support for code generating catchpad
We can now run 32-bit programs with empty catch bodies. The next step
is to change PEI so that we get funclet prologues and epilogues.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@246235
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Michael J. Spencer [Thu, 27 Aug 2015 23:11:20 +0000 (23:11 +0000)]
[yaml2obj] Support numeric indexes to create invalid files. Will be used by lld test.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@246233
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David Majnemer [Thu, 27 Aug 2015 23:03:01 +0000 (23:03 +0000)]
[ValueTracking] readnone CallInsts are fair game for speculation
Any call which is side effect free is trivially OK to speculate. We
already had similar logic in EarlyCSE and GVN but we were missing it
from isSafeToSpeculativelyExecute.
This fixes PR24601.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@246232
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Lang Hames [Thu, 27 Aug 2015 22:20:05 +0000 (22:20 +0000)]
Add a global mapping layer for Orc. Adapted from a patch by Andy Somogyi.
Thanks Andy!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@246226
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Peter Collingbourne [Thu, 27 Aug 2015 21:52:31 +0000 (21:52 +0000)]
Support: Introduce thread.h.
This header is a wrapper for <thread> that works around problems with the
MSVC headers when exceptions are disabled.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@246218
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Ahmed Bougacha [Thu, 27 Aug 2015 21:46:04 +0000 (21:46 +0000)]
[CodeGen] Check FoldConstantArithmetic result before using it.
Fixes PR24602: r245689 introduced an unguarded use of
SelectionDAG::FoldConstantArithmetic, which returns 0 when it fails
because of opaque (hoisted) constants.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@246217
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Ahmed Bougacha [Thu, 27 Aug 2015 20:43:34 +0000 (20:43 +0000)]
[TableGen][DAGISel] Dedup predicates with same code to run. NFCI.
I locally hit the 255 limit, but a lot of these are redundant: each
predicate coming from a different record was allocated a new number,
even when we already emitted the same code for another predicate.
Instead, re-use numbers and emit the predicate code only once.
This reduces the total text size of *DAGISel.cpp.o by ~1%.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@246208
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Tyler Nowicki [Thu, 27 Aug 2015 20:43:29 +0000 (20:43 +0000)]
Fix test introduced in r246187 that failed on some systems.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@246207
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Lang Hames [Thu, 27 Aug 2015 20:33:22 +0000 (20:33 +0000)]
Oops - Re-add the Kaleidoscope regression tests themselves (accidentally left
out of r246201).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@246203
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Lang Hames [Thu, 27 Aug 2015 20:31:44 +0000 (20:31 +0000)]
Recommit r246175 - Add Kaleidoscope regression tests, with a fix to make sure
the kaleidoscope 'library' functions aren't dead-stripped in release builds.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@246201
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Erik Schnetter [Thu, 27 Aug 2015 19:56:57 +0000 (19:56 +0000)]
Enable constant propagation for more math functions
Constant propagation for single precision math functions (such as
tanf) is already working, but was not enabled. This patch enables
these for many single-precision functions, and adds respective test
cases.
Newly handled functions: acosf asinf atanf atan2f ceilf coshf expf
exp2f fabsf floorf fmodf logf log10f powf sinhf tanf tanhf
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@246194
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Erik Schnetter [Thu, 27 Aug 2015 19:34:14 +0000 (19:34 +0000)]
Revert 246186; still breaks on some systems
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@246191
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Tyler Nowicki [Thu, 27 Aug 2015 18:56:49 +0000 (18:56 +0000)]
Improve vectorization diagnostic messages and extend vectorize(enable) pragma.
This patch changes the analysis diagnostics produced when loops with
floating-point recurrences or memory operations are identified. The new messages
say "cannot prove it is safe to reorder * operations; allow reordering by
specifying #pragma clang loop vectorize(enable)". Depending on the type of
diagnostic the message will include additional options such as ffast-math or
__restrict__.
This patch also allows the vectorize(enable) pragma to override the low pointer
memory check threshold. When the hint is given a higher threshold is used.
See the clang patch for the options produced for each diagnostic.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@246187
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Erik Schnetter [Thu, 27 Aug 2015 18:56:23 +0000 (18:56 +0000)]
Enable constant propagation for more math functions
Constant propagation for single precision math functions (such as
tanf) is already working, but was not enabled. This patch enables
these for many single-precision functions, and adds respective test
cases.
Newly handled functions: acosf asinf atanf atan2f ceilf coshf expf
exp2f fabsf floorf fmodf logf log10f powf sinhf tanf tanhf
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@246186
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Lang Hames [Thu, 27 Aug 2015 18:54:41 +0000 (18:54 +0000)]
Revert r246175 to get builder green again.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@246185
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Ahmed Bougacha [Thu, 27 Aug 2015 18:14:21 +0000 (18:14 +0000)]
[TableGen] Remove dead code. NFC.
The only user of this was removed in r129670.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@246176
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Lang Hames [Thu, 27 Aug 2015 18:13:34 +0000 (18:13 +0000)]
Add Kaleidoscope regression tests.
These will be run if LLVM_BUILD_EXAMPLES is enabled.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@246175
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Matt Arsenault [Thu, 27 Aug 2015 17:41:27 +0000 (17:41 +0000)]
AMDGPU/SI: Add test for folding constants into operands
Patch by Axel Davy
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@246167
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Erik Schnetter [Thu, 27 Aug 2015 17:24:01 +0000 (17:24 +0000)]
Revert r246158 since it breaks LLVM.Transforms/ConstProp.calls.ll
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@246166
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Jonathan Roelofs [Thu, 27 Aug 2015 17:03:14 +0000 (17:03 +0000)]
Fix a case of `CHECK[^:]*$`.
http://reviews.llvm.org/D11917
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@246163
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Erik Schnetter [Thu, 27 Aug 2015 16:36:37 +0000 (16:36 +0000)]
Enable constant propagation for more math functions
Constant propagation for single precision math functions (such as
tanf) is already working, but was not enabled. This patch enables
these for many single-precision functions, and adds respective test
cases.
Newly handled functions: acosf asinf atanf atan2f ceilf coshf expf
exp2f fabsf floorf fmodf logf log10f powf sinhf tanf tanhf
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@246158
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NAKAMURA Takumi [Thu, 27 Aug 2015 16:10:47 +0000 (16:10 +0000)]
[CMake] OBJLIB-ize *-tblgen.
This improves dependency chain of;
(LLVMSupport && LLVMTableGen) && (*.cpp in *-tblgen) && (linking *-tblgen)
with;
(LLVMSupport && LLVMTableGen && *.cpp) && (linking *-tblgen)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@246156
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Chad Rosier [Thu, 27 Aug 2015 15:24:47 +0000 (15:24 +0000)]
[LoopVectorize] Move test from r246149 into a target-specific folder to appease bots.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@246154
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NAKAMURA Takumi [Thu, 27 Aug 2015 15:13:14 +0000 (15:13 +0000)]
[CMake] Let ExceptionDemo buildable with ENABLE_EH.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@246152
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Davide Italiano [Thu, 27 Aug 2015 15:11:32 +0000 (15:11 +0000)]
[llvm-readobj] Add support for dumping MachO min version load command.
Example output:
File: <stdin>
Format: Mach-O arm
Arch: arm
AddressSize: 32bit
MinVersion {
Cmd: LC_VERSION_MIN_IPHONEOS
Size: 16
Version: 99.8.7
SDK: n/a
}
Differential Revision: http://reviews.llvm.org/D12373
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@246151
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Chad Rosier [Thu, 27 Aug 2015 14:12:17 +0000 (14:12 +0000)]
[LoopVectorize] Add Support for Small Size Reductions.
Unlike scalar operations, we can perform vector operations on element types that
are smaller than the native integer types. We type-promote scalar operations if
they are smaller than a native type (e.g., i8 arithmetic is promoted to i32
arithmetic on Arm targets). This patch detects and removes type-promotions
within the reduction detection framework, enabling the vectorization of small
size reductions.
In the legality phase, we look through the ANDs and extensions that InstCombine
creates during promotion, keeping track of the smaller type. In the
profitability phase, we use the smaller type and ignore the ANDs and extensions
in the cost model. Finally, in the code generation phase, we truncate the result
of the reduction to allow InstCombine to rewrite the entire expression in the
smaller type.
This fixes PR21369.
http://reviews.llvm.org/D12202
Patch by Matt Simpson <mssimpso@codeaurora.org>!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@246149
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James Molloy [Thu, 27 Aug 2015 09:53:00 +0000 (09:53 +0000)]
[LoopVectorize] Extract InductionInfo into a helper class...
... and move it into LoopUtils where it can be used by other passes, just like ReductionDescriptor. The API is very similar to ReductionDescriptor - that is, not very nice at all. Sorting these both out will come in a followup.
NFC
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@246145
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Alex Rosenberg [Thu, 27 Aug 2015 05:37:12 +0000 (05:37 +0000)]
Whoops, remove trailing whitespace.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@246141
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Pete Cooper [Thu, 27 Aug 2015 03:16:29 +0000 (03:16 +0000)]
isKnownNonNull needs to consider globals in non-zero address spaces.
Globals in address spaces other than one may have 0 as a valid address,
so we should not assume that they can be null.
Reviewed by Philip Reames.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@246137
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Philip Reames [Thu, 27 Aug 2015 01:32:33 +0000 (01:32 +0000)]
Allow value forwarding past release fences in EarlyCSE
A release fence acts as a publication barrier for stores within the current thread to become visible to other threads which might observe the release fence. It does not require the current thread to observe stores performed on other threads. As a result, we can allow store-load and load-store forwarding across a release fence.
We do need to make sure that stores before the fence can't be eliminated even if there's another store to the same location after the fence. In theory, we could reorder the second store above the fence and *then* eliminate the former, but we can't do this if the stores are on opposite sides of the fence.
Note: While more aggressive then what's there, this patch is still implementing a really conservative ordering. In particular, I'm not trying to exploit undefined behavior via races, or the fact that the LangRef says only 'atomic' accesses are ordered w.r.t. fences.
Differential Revision: http://reviews.llvm.org/D11434
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@246134
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Philip Reames [Thu, 27 Aug 2015 01:02:28 +0000 (01:02 +0000)]
[RewriteStatepointsForGC] Reduce the number of new instructions for base pointers
When computing base pointers, we introduce new instructions to propagate the base of existing instructions which might not be bases. However, the algorithm doesn't make any effort to recognize when the new instruction to be inserted is the same as an existing one already in the IR. Since this is happening immediately before rewriting, we don't really have a chance to fix it after the pass runs without teaching loop passes about statepoints.
I'm really not thrilled with this patch. I've rewritten it 4 different ways now, but this is the best I've come up with. The case where the new instruction is just the original base defining value could be merged into the existing algorithm with some complexity. The problem is that we might have something like an extractelement from a phi of two vectors. It may be trivially obvious that the base of the 0th element is an existing instruction, but I can't see how to make the algorithm itself figure that out. Thus, I resort to the call to SimplifyInstruction instead.
Note that we can only adjust the instructions we've inserted ourselves. The live sets are still being tracked in side structures at this point in the code. We can't easily muck with instructions which might be in them. Long term, I'm really thinking we need to materialize the live pointer sets explicitly in the IR somehow rather than using side structures to track them.
Differential Revision: http://reviews.llvm.org/D12004
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@246133
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Tyler Nowicki [Thu, 27 Aug 2015 01:02:04 +0000 (01:02 +0000)]
Improved printing of analysis diagnostics in the loop vectorizer.
This patch ensures that every analysis diagnostic produced by the vectorizer
will be printed if the loop has a vectorization hint on it. The condition has
also been improved to prevent printing when a disabling hint is specified.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@246132
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Cong Hou [Thu, 27 Aug 2015 00:37:40 +0000 (00:37 +0000)]
Fixed a bug that edge weights are not assigned correctly when lowering switch statement.
This is a one-line-change patch that moves the update to UnhandledWeights to the correct position: it should be updated for all clusters instead of just range clusters.
Differential Revision: http://reviews.llvm.org/D12391
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@246129
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NAKAMURA Takumi [Thu, 27 Aug 2015 00:04:24 +0000 (00:04 +0000)]
Kaleidoscope: Prune unused libdeps.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@246126
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Philip Reames [Wed, 26 Aug 2015 23:56:46 +0000 (23:56 +0000)]
[SimplifyCFG] Prune code from a provably unreachable switch default
As Sanjoy pointed out over in http://reviews.llvm.org/D11819, a switch on an icmp should always be able to become a branch instruction. This patch generalizes that notion slightly to prove that the default case of a switch is unreachable if the cases completely cover all possible bit patterns in the condition. Once that's done, the switch to branch conversion kicks in just fine.
Note: Duplicate case values are disallowed by the LangRef and verifier.
Differential Revision: http://reviews.llvm.org/D11995
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@246125
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Hal Finkel [Wed, 26 Aug 2015 23:41:53 +0000 (23:41 +0000)]
[PowerPC] Remove unnecessary braces in PPCVSXFMAMutate
Address Eric's post-commit review of r245741. NFC.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@246121
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Bjarke Hammersholt Roune [Wed, 26 Aug 2015 23:22:02 +0000 (23:22 +0000)]
[NVPTX] Let NVPTX backend detect integer min and max patterns.
Summary:
Let NVPTX backend detect integer min and max patterns during isel and emit intrinsics that enable hardware support.
Reviewers: jholewinski, meheff, jingyue
Subscribers: arsenm, llvm-commits, meheff, jingyue, eliben, jholewinski
Differential Revision: http://reviews.llvm.org/D12377
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@246107
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Cong Hou [Wed, 26 Aug 2015 23:17:52 +0000 (23:17 +0000)]
[ARM] Use BranchProbability::scale() to scale an integer with a probability in ARMBaseInstrInfo.cpp,
Previously in isProfitableToIfCvt() in ARMBaseInstrInfo.cpp, the multiplication between an integer and a branch probability is done manually in an unsafe way that may lead to overflow. This patch corrects those cases by using BranchProbability's member function scale() to avoid overflow (which stores the intermediate result in int64).
Differential Revision: http://reviews.llvm.org/D12295
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@246106
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Cong Hou [Wed, 26 Aug 2015 23:15:32 +0000 (23:15 +0000)]
Assign weights to edges to jump table / bit test header when lowering switch statement.
Currently, when lowering switch statement and a new basic block is built for jump table / bit test header, the edge to this new block is not assigned with a correct weight. This patch collects the edge weight from all its successors and assign this sum of weights to the edge (and also the other fall-through edge). Test cases are adjusted accordingly.
Differential Revision: http://reviews.llvm.org/D12166#
fae6eca7
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@246104
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Philip Reames [Wed, 26 Aug 2015 23:13:35 +0000 (23:13 +0000)]
[docs][Statepoints] More on base pointers
Expand the information on base pointers to include an example, the assumptions a collector is allowed to make, legal optimizations over gc.relocates, and the assumptions made by RewriteStatepointsForGC. This is the result of a recent conversation with folks from LLIC and the confusions that came to light therein.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@246103
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JF Bastien [Wed, 26 Aug 2015 23:03:07 +0000 (23:03 +0000)]
WebAssembly: NFC comment update
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@246101
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Duncan P. N. Exon Smith [Wed, 26 Aug 2015 22:50:16 +0000 (22:50 +0000)]
DI: Make Subprogram definitions 'distinct'
Change `DIBuilder` always to produce 'distinct' nodes when creating
`DISubprogram` definitions. I measured a ~5% memory improvement in the
link step (of ld64) when using `-flto -g`.
`DISubprogram`s are used in two ways in the debug info graph.
Some are definitions, point at actual functions, and can't really be
shared between compile units. With full debug info, these point down at
their variables, forming uniquing cycles. These uniquing cycles are
expensive to link between modules, since all unique nodes that reference
them transitively need to be duplicated (see commit message for r244181
for more details).
Others are declarations, primarily used for member functions in the type
hierarchy. Definitions never show up there; instead, a definition
points at its corresponding declaration node.
I started by making all subprograms 'distinct'. However, that was too
big a hammer: memory usage *increased* ~5% (net increase vs. this patch
of ~10%) because the 'distinct' declarations undermine LTO type
uniquing. This is a targeted fix for the definitions (where uniquing is
an observable problem).
A couple of notes:
- There's an accompanying commit to update IRGen testcases in clang.
- ^ That's what I'm using to test this commit.
- In a follow-up, I'll change the verifier to require 'distinct' on
definitions and add an upgrade to `BitcodeReader`.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@246098
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JF Bastien [Wed, 26 Aug 2015 22:09:54 +0000 (22:09 +0000)]
WebAssembly: handle private/internal globals.
Things of note:
- Other linkage types aren't handled yet. We'll figure it out with dynamic linking.
- Special LLVM globals are either ignored, or error out for now.
- TLS isn't supported yet (WebAssembly will have threads later).
- There currently isn't a syntax for alignment, I left it in a comment so it's easy to hook up.
- Undef is convereted to whatever the type's appropriate null value is.
- assert versus report_fatal_error: follow what other AsmPrinters do, and assert only on what should have been caught elsewhere.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@246092
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Reid Kleckner [Wed, 26 Aug 2015 21:57:25 +0000 (21:57 +0000)]
[ms-inline-asm] Relax assertion around funky identifiers slightly
A corresponding clang change will make it so that clang can consume part
of an assembler token. The assembler treats '.' as an identifier
character while clang does not, so it's view of the token stream is a
little different.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@246089
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Kostya Serebryany [Wed, 26 Aug 2015 21:55:19 +0000 (21:55 +0000)]
[libFuzzer] fix minor inefficiency, PR24584
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@246087
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Mehdi Amini [Wed, 26 Aug 2015 21:16:29 +0000 (21:16 +0000)]
Fix LLVM C API for DataLayout
We removed access to the DataLayout on the TargetMachine and
deprecated the C API function LLVMGetTargetMachineData() in r243114.
However the way I tried to be backward compatible was broken: I
changed the wrapper of the TargetMachine to be a structure that
includes the DataLayout as well. However the TargetMachine is also
wrapped by the ExecutionEngine, in the more classic way. A client
using the TargetMachine wrapped by the ExecutionEngine and trying
to get the DataLayout would break.
It seems tricky to solve the problem completely in the C API
implementation. This patch tries to address this backward
compatibility in a more lighter way in the C++ API. The C API is
restored in its original state and the removed C++ API is
reintroduced, but privately. The C API is friended to the
TargetMachine and should be the only consumer for this API.
Reviewers: ributzka
Differential Revision: http://reviews.llvm.org/D12263
From: Mehdi Amini <mehdi.amini@apple.com>
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@246082
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Lang Hames [Wed, 26 Aug 2015 20:57:03 +0000 (20:57 +0000)]
[Kaleidoscope] Fix a typo in Chapter 5.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@246081
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Matt Arsenault [Wed, 26 Aug 2015 20:48:08 +0000 (20:48 +0000)]
AMDGPU: Delete dead code
There is no context where s_mov_b64 is emitted
and could potentially be moved to the VALU.
It is currently only emitted for materializing
immediates, which can't be dependent on vector sources.
The immediate splitting is already done when selecting
constants. I'm not sure what contexts if any the register
splitting would have been used before.
Also clean up using s_mov_b64 in place of v_mov_b64_pseudo,
although this isn't required and just skips the extra step
of eliminating the copy from the SReg_64.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@246080
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Matt Arsenault [Wed, 26 Aug 2015 20:48:04 +0000 (20:48 +0000)]
AMDGPU: Don't reprocess instructions when splitting i64 bcnt
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@246079
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Matt Arsenault [Wed, 26 Aug 2015 20:47:58 +0000 (20:47 +0000)]
AMDGPU: Fix not moving users of s_bfe_i64 to VALU
This wouldn't propagate to users of the original BFE
and would hit a verifier error.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@246078
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Matt Arsenault [Wed, 26 Aug 2015 20:47:50 +0000 (20:47 +0000)]
AMDGPU: Don't create intermediate SALU instructions
When splitting 64-bit operations, create the correct
VALU instructions immediately.
This was splitting things like s_or_b64 into the two
s_or_b32s and then pushing the new instructions
onto the worklist. There's no reason we need
to do this intermediate step.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@246077
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Matthias Braun [Wed, 26 Aug 2015 20:46:52 +0000 (20:46 +0000)]
SelectionDAGBuilder: Fix SPDescriptor not resetting GuardReg
This was causing problems when some functions use a GuardReg and some
don't as can happen when mixing SelectionDAG and FastISel generated
functions.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@246075
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Matthias Braun [Wed, 26 Aug 2015 20:46:49 +0000 (20:46 +0000)]
FastISel: Avoid adding a successor block twice for degenerate IR.
This fixes http://llvm.org/PR24581
Differential Revision: http://reviews.llvm.org/D12350
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@246074
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Andrew Kaylor [Wed, 26 Aug 2015 20:36:52 +0000 (20:36 +0000)]
Expose hasLiveCondCodeDef as a member function of the X86InstrInfo class. NFC
This takes the existing static function hasLiveCondCodeDef and makes it a member function of the X86InstrInfo class. This is a useful utility function that an upcoming change would like to use. NFC.
Patch by: Kevin B. Smith
Differential Revision: http://reviews.llvm.org/D12371
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@246073
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Diego Novillo [Wed, 26 Aug 2015 20:00:27 +0000 (20:00 +0000)]
Fix memory leak in sample profile pass.
The problem here were the function analyses invoked by the function pass
manager from the new IPO pass. I looked at other IPO passes needing
dominance information and the only one that requires it (partial
inliner) does not use the standard dependency mechanism.
This patch mimics what the partial inliner does to compute dominance,
post-dominance and loop info. One thing I like about this approach is
that I can delay the computation of all this until I actually need it.
This should bring the ASAN buildbot back to green. If there's a better
way to fix this, I'll do it in a follow-up patch.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@246066
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Mehdi Amini [Wed, 26 Aug 2015 19:24:59 +0000 (19:24 +0000)]
Revert "Fix LLVM C API for DataLayout"
This reverts commit r246052.
Third attempt, still unpleasant for some bots.
From: Mehdi Amini <mehdi.amini@apple.com>
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@246057
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Matt Arsenault [Wed, 26 Aug 2015 19:12:03 +0000 (19:12 +0000)]
AMDGPU/SI: Report SIFixSGPRLiveRanges changed function
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@246056
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Mehdi Amini [Wed, 26 Aug 2015 18:56:01 +0000 (18:56 +0000)]
Fix LLVM C API for DataLayout
We removed access to the DataLayout on the TargetMachine and
deprecated the C API function LLVMGetTargetMachineData() in r243114.
However the way I tried to be backward compatible was broken: I
changed the wrapper of the TargetMachine to be a structure that
includes the DataLayout as well. However the TargetMachine is also
wrapped by the ExecutionEngine, in the more classic way. A client
using the TargetMachine wrapped by the ExecutionEngine and trying
to get the DataLayout would break.
It seems tricky to solve the problem completely in the C API
implementation. This patch tries to address this backward
compatibility in a more lighter way in the C++ API. The C API is
restored in its original state and the removed C++ API is
reintroduced, but privately. The C API is friended to the
TargetMachine and should be the only consumer for this API.
Reviewers: ributzka
Differential Revision: http://reviews.llvm.org/D12263
From: Mehdi Amini <mehdi.amini@apple.com>
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@246052
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Matt Arsenault [Wed, 26 Aug 2015 18:54:50 +0000 (18:54 +0000)]
AMDGPU: Make sure to reserve super registers
I think this could potentially have broken if
one of the super registers were allocated
that contain v254/v255.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@246051
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Mehdi Amini [Wed, 26 Aug 2015 18:37:59 +0000 (18:37 +0000)]
Revert "Fix LLVM C API for DataLayout"
This reverts commit r246044.
Build broken, still. It builds for me...
From: Mehdi Amini <mehdi.amini@apple.com>
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@246049
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Matt Arsenault [Wed, 26 Aug 2015 18:37:13 +0000 (18:37 +0000)]
AMDGPU: Produce error on dynamic_stackalloc
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@246048
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David Majnemer [Wed, 26 Aug 2015 18:30:16 +0000 (18:30 +0000)]
[SimplifyLibCalls] Fix a typo
cbrt(sqrt(x)) calculates the sixth root, not the ninth root.
cbrt(cbrt(x)) calculates the ninth root.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@246046
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Mehdi Amini [Wed, 26 Aug 2015 18:22:34 +0000 (18:22 +0000)]
Fix LLVM C API for DataLayout
We removed access to the DataLayout on the TargetMachine and
deprecated the C API function LLVMGetTargetMachineData() in r243114.
However the way I tried to be backward compatible was broken: I
changed the wrapper of the TargetMachine to be a structure that
includes the DataLayout as well. However the TargetMachine is also
wrapped by the ExecutionEngine, in the more classic way. A client
using the TargetMachine wrapped by the ExecutionEngine and trying
to get the DataLayout would break.
It seems tricky to solve the problem completely in the C API
implementation. This patch tries to address this backward
compatibility in a more lighter way in the C++ API. The C API is
restored in its original state and the removed C++ API is
reintroduced, but privately. The C API is friended to the
TargetMachine and should be the only consumer for this API.
Reviewers: ributzka
Differential Revision: http://reviews.llvm.org/D12263
From: Mehdi Amini <mehdi.amini@apple.com>
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@246044
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James Y Knight [Wed, 26 Aug 2015 17:57:51 +0000 (17:57 +0000)]
[SPARC] Fix stupid oversight in stack realignment support.
If you're going to realign %sp to get object alignment properly (which
the code does), and stack offsets and alignments are calculated going
down from %fp (which they are), then the total stack size had better
be a multiple of the alignment. LLVM did indeed ensure that.
And then, after aligning, the sparc frame code added 96 (for sparcv8)
to the frame size, making any requested alignment of 64-bytes or
higher *guaranteed* to be misaligned. The test case added with r245668
even tests this exact scenario, and asserted the incorrect behavior,
which I somehow failed to notice. D'oh.
This change fixes the frame lowering code to align the stack size
*after* adding the spill area, instead.
Differential Revision: http://reviews.llvm.org/D12349
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@246042
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Philip Reames [Wed, 26 Aug 2015 17:25:36 +0000 (17:25 +0000)]
[docs][Statepoint] Add definitions for base and derived pointers
This section will be expanded over the next few days. This is just some initial content.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@246041
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