Commit Graph

137022 Commits

Author SHA1 Message Date
Andrew Trick a7714a0ff9 misched: Target-independent support for load/store clustering.
This infrastructure is generally useful for any target that wants to
strongly prefer two instructions to be adjacent after scheduling.

A following checkin will add target-specific hooks with unit
tests. Then this feature will be enabled by default with misched.

llvm-svn: 167742
2012-11-12 19:40:10 +00:00
Chad Rosier 7ea7397ebc If we encounter a fatal error, call the interrupt handler to ensure any
temporary files are removed.
rdar://12282296

llvm-svn: 167741
2012-11-12 19:39:37 +00:00
Shuxin Yang 1c442f5ec6 This change is to fix rdar://12571717 which is about assertion in Reassociate pass.
The assertion is trigged when the Reassociater tries to transform expression
     ... + 2 * n * 3 + 2 * m + ...
  into:
     ... + 2 * (n*3 + m).

In the process of the transformation, a helper routine folds the constant 2*3 into 6,
confusing optimizer which is trying the to eliminate the common factor 2, and cannot
find 2 any more. 

Review is pending. But I'd like commit first in order to help those who are waiting 
for this fix. 

llvm-svn: 167740
2012-11-12 19:34:11 +00:00
David Blaikie 6bffd6fe81 80 cols & unnecessary braces from r167736.
Post-commit review feedback by Eli Friedman.

llvm-svn: 167739
2012-11-12 19:32:32 +00:00
Andrew Trick f1ff84c64e misched: Infrastructure for weak DAG edges.
This adds support for weak DAG edges to the general scheduling
infrastructure in preparation for MachineScheduler support for
heuristics based on weak edges.

llvm-svn: 167738
2012-11-12 19:28:57 +00:00
Ulrich Weigand 2c93acdfbf Make TOC order deterministic by using MapVector instead of DenseMap.
llvm-svn: 167737
2012-11-12 19:13:24 +00:00
David Blaikie 8fab8e53fb Correct printing of nested anonymous type member accesses.
Patch by Florent Bruneau!

llvm-svn: 167736
2012-11-12 19:12:12 +00:00
Bill Wendling 3c7fed87d2 The register constraint could mean a 16- or 8-bit register.
llvm-svn: 167735
2012-11-12 18:52:32 +00:00
Nadav Rotem 0767d177ec fix a spelling mistake
llvm-svn: 167734
2012-11-12 18:45:12 +00:00
Howard Hinnant 70abebed37 Wen-Han Gu: Fix for http://llvm.org/bugs/show_bug.cgi?id=14312 Exception Table out-of-range but still keep walking.
llvm-svn: 167733
2012-11-12 18:19:15 +00:00
Sean Callanan 467ab7b8d0 Fixed a potential crash in the Darwin platform.
llvm-svn: 167732
2012-11-12 18:00:29 +00:00
Hal Finkel ef53df0f9f BBVectorize: Check the input types of shuffles for legality
This fixes a bug where shuffles were being fused such that the
resulting input types were not legal on the target. This would
occur only when both inputs and dependencies were also foldable
operations (such as other shuffles) and there were other connected
pairs in the same block.

llvm-svn: 167731
2012-11-12 14:50:59 +00:00
Alexander Potapenko 5a578119ad Don't use __cxa_demangle under MSVC (which doesn't have it)
llvm-svn: 167730
2012-11-12 14:49:58 +00:00
Alexey Samsonov afc550d948 [ASan] fixup for r167725: Don't fetch name of StructType if it is literal
llvm-svn: 167729
2012-11-12 14:47:00 +00:00
Alexey Samsonov 9cb13d59b7 Fixup for r167558: Store raw pointer (instead of reference) to RelocMap in DIContext. This is needed to prevent crashes because of dangling reference if the clients don't provide RelocMap to DIContext constructor.
llvm-svn: 167728
2012-11-12 14:25:36 +00:00
Alexey Samsonov c835b9e4a3 [ASan] test blacklist functionality for global-init-order checker (r167725)
llvm-svn: 167727
2012-11-12 14:03:00 +00:00
Meador Inge b3e91f6ae0 Normalize memcmp constant folding results.
The library call simplifier folds memcmp calls with all constant arguments
to a constant.  For example:

  memcmp("foo", "foo", 3) ->  0
  memcmp("hel", "foo", 3) ->  1
  memcmp("foo", "hel", 3) -> -1

The folding is implemented in terms of the system memcmp that LLVM gets
linked with.  It currently just blindly uses the value returned from
the system memcmp as the folded constant.

This patch normalizes the values returned from the system memcmp to
(-1, 0, 1) so that we get consistent results across multiple platforms.
The test cases were adjusted accordingly.

llvm-svn: 167726
2012-11-12 14:00:45 +00:00
Alexey Samsonov 582d7de709 [ASan]: Add minimalistic support for turning off initialization-order checking for globals of specified types. Tests for this behavior will go to ASan test suite in compiler-rt.
llvm-svn: 167725
2012-11-12 14:00:01 +00:00
Gabor Greif ea5fa1004f do not play preprocessor tricks with 'private', use public interfaces instead; this appeases the VC++ buildbots
llvm-svn: 167724
2012-11-12 13:34:59 +00:00
Alexander Potapenko 8c07f55568 [ASan] Add llvm-symbolizer from to tools/
This is the second and last (2/2) part of a change that moves llvm-symbolizer to llvm/tools/, which will allow to build it
with both cmake and configure+make.

llvm-svn: 167723
2012-11-12 11:33:29 +00:00
Alexander Potapenko 9448581d9e [ASan] Remove llvm-symbolizer from compiler-rt/utils/
This is the first (1/2) part of a change that moves llvm-symbolizer to llvm/tools/, which will allow to build it
with both cmake and configure+make.

llvm-svn: 167722
2012-11-12 11:32:42 +00:00
Alexander Potapenko 5066c5d9b7 [ASan] Fix the golden stack for use-after-free.cc.
The change has been caused by the switch to llvm-symbolizer, that prints inlined stack frames.
This should fix PR 14251

llvm-svn: 167721
2012-11-12 11:27:24 +00:00
Gabor Greif fea6a551a9 add unit test for waymarking algorithm (Use::getUser)
llvm-svn: 167720
2012-11-12 10:01:17 +00:00
Eric Christopher 166311301c Remove unused field.
llvm-svn: 167719
2012-11-12 07:35:12 +00:00
Michael Liao d39c0fb19f Fix PR14314
- Fix operand order for atomic sub, where the minuend is the value
  loaded from memory and the subtrahend is the parameter specified.

llvm-svn: 167718
2012-11-12 06:49:17 +00:00
Bill Wendling 887b485dbe Check that the input size is correct for the given constraint.
The 'a', 'c', and 'd' constraints on i386 mean a 32-bit register. We cannot
place a 64-bit value into the 32-bit register. Error out instead of causing the
compiler to spew general badness.
<rdar://problem/12415959>

llvm-svn: 167717
2012-11-12 06:42:51 +00:00
Craig Topper b41000ed70 Add --enable-werror and --enable-cxx11 to projects/sample/
llvm-svn: 167716
2012-11-12 06:11:12 +00:00
Rafael Espindola ab53a72781 Remove calls to getMostRecentDecl. The case they were added for in r117526 are
now covered by attribute merging.

llvm-svn: 167714
2012-11-12 04:32:23 +00:00
Rafael Espindola d5ed033d56 In Sema::MergeVarDecl we handle merging of storage classes and visibility
attributes. In cases where the merged declaration is fully equivalent to the
two original ones, some of the code was getLVForDecl was duplicated.

Cases that are still handled in getLVForDecl are things like

__private_extern__ int N;
int N;

For which we cannot produce a single merged decl with all the information.

llvm-svn: 167703
2012-11-12 04:10:23 +00:00
Justin Holewinski 2700433f89 [NVPTX] Fix const modifier on builtins
Some NVVM intrinsics were incorrectly labeled.

llvm-svn: 167700
2012-11-12 03:16:56 +00:00
Justin Holewinski 1812ee9a5b [NVPTX] Add more precise PTX/SM target attributes
Each SM and PTX version is modeled as a subtarget feature/CPU. Additionally,
PTX 3.1 is added as the default PTX version to be out-of-the-box compatible
with CUDA 5.0.

Available CPUs for this target:

  sm_10 - Select the sm_10 processor.
  sm_11 - Select the sm_11 processor.
  sm_12 - Select the sm_12 processor.
  sm_13 - Select the sm_13 processor.
  sm_20 - Select the sm_20 processor.
  sm_21 - Select the sm_21 processor.
  sm_30 - Select the sm_30 processor.
  sm_35 - Select the sm_35 processor.

Available features for this target:

  ptx30 - Use PTX version 3.0.
  ptx31 - Use PTX version 3.1.
  sm_10 - Target SM 1.0.
  sm_11 - Target SM 1.1.
  sm_12 - Target SM 1.2.
  sm_13 - Target SM 1.3.
  sm_20 - Target SM 2.0.
  sm_21 - Target SM 2.1.
  sm_30 - Target SM 3.0.
  sm_35 - Target SM 3.5.

llvm-svn: 167699
2012-11-12 03:16:43 +00:00
Meador Inge f963a8ffcc Delete a stale comment. No functional change.
llvm-svn: 167698
2012-11-12 00:28:15 +00:00
Craig Topper dd13d3fda1 Move some helper methods to being static functions in the implementation file.
llvm-svn: 167696
2012-11-11 22:45:02 +00:00
Daniel Jasper 33806cdefc Fix binding of nodes in case of forEach..() matchers.
When recursively visiting the generated matches, the aggregated bindings need
to be copied during the recursion. Otherwise, we they might not be properly
overwritten (which is shown by the test), or there might be bound nodes present
that were bound on a different matching branch.

Review: http://llvm-reviews.chandlerc.com/D112
llvm-svn: 167695
2012-11-11 22:14:55 +00:00
Nico Weber 07351f8e78 Remove unneeded includes from IdentifierTable
llvm-svn: 167694
2012-11-11 21:39:39 +00:00
Nico Weber 496b6dd5b1 Delete comment reference to non-existent method
llvm-svn: 167692
2012-11-11 21:02:03 +00:00
Meador Inge 9493eb9bc4 Remove hard-coded constant in Transforms/InstCombine/memcmp-1.ll
Transforms/InstCombine/memcmp-1.ll has a test case that looks like:

  @foo = constant [4 x i8] c"foo\00"
  @hel = constant [4 x i8] c"hel\00"

  ...

  %mem1 = getelementptr [4 x i8]* @hel, i32 0, i32 0
  %mem2 = getelementptr [4 x i8]* @foo, i32 0, i32 0
  %ret = call i32 @memcmp(i8* %mem1, i8* %mem2, i32 3)
  ret i32 %ret
  ; CHECK: ret i32 2

The folded return value (2 above) is computed using the system memcmp
that the compiler is linked with.  This can return different values on
different systems.  The test was originally written on an OS X 10.7.5
x86-64 box and passed.  However, it failed on one of the x86-64 FreeBSD
buildbots because the system memcpy on that machine returned a different
value (1 instead of 2).

I fixed the test by checking the folding constants with regexes.

llvm-svn: 167691
2012-11-11 07:10:25 +00:00
Nico Weber 158a31abe2 s/BCPLComment/LineComment/
llvm-svn: 167690
2012-11-11 07:02:14 +00:00
Meador Inge d4825780ed instcombine: Migrate memset optimizations
This patch migrates the memset optimizations from the simplify-libcalls
pass into the instcombine library call simplifier.

llvm-svn: 167689
2012-11-11 06:49:03 +00:00
Nadav Rotem 913805703d Update the vectorizer docs.
llvm-svn: 167688
2012-11-11 06:47:51 +00:00
Meador Inge 9cf328b526 instcombine: Migrate memmove optimizations
This patch migrates the memmove optimizations from the simplify-libcalls
pass into the instcombine library call simplifier.

llvm-svn: 167687
2012-11-11 06:22:40 +00:00
Meador Inge dd9234a10a instcombine: Migrate memcpy optimizations
This patch migrates the memcpy optimizations from the simplify-libcalls
pass into the instcombine library call simplifier.

llvm-svn: 167686
2012-11-11 05:54:34 +00:00
Nadav Rotem 3b99dc62a7 Use the isTruncFree and isZExtFree API to figure out of these operations are free. Thanks Andy!
llvm-svn: 167685
2012-11-11 05:34:45 +00:00
Nadav Rotem 12930749ab Fix a comment typo and add comments.
llvm-svn: 167684
2012-11-11 05:15:00 +00:00
Meador Inge 4d2827c10d instcombine: Migrate memcmp optimizations
This patch migrates the memcmp optimizations from the simplify-libcalls
pass into the instcombine library call simplifier.

llvm-svn: 167683
2012-11-11 05:11:20 +00:00
Meador Inge 56edbc9323 instcombine: Migrate strstr optimizations
This patch migrates the strstr optimizations from the simplify-libcalls
pass into the instcombine library call simplifier.

llvm-svn: 167682
2012-11-11 03:51:48 +00:00
Meador Inge 76fc1a479a Add method for replacing instructions to LibCallSimplifier
In some cases the library call simplifier may need to replace instructions
other than the library call being simplified.  In those cases it may be
necessary for clients of the simplifier to override how the replacements
are actually done.  As such, a new overrideable method for replacing
instructions was added to LibCallSimplifier.

A new subclass of LibCallSimplifier is also defined which overrides
the instruction replacement method.  This is because the instruction
combiner defines its own replacement method which updates the worklist
when instructions are replaced.

llvm-svn: 167681
2012-11-11 03:51:43 +00:00
Nico Weber 1ed35ba2dd FileCheckize test
llvm-svn: 167680
2012-11-11 01:35:05 +00:00
Richard Smith 67ea635f7a Fix a typo which Matt pointed out.
llvm-svn: 167679
2012-11-11 00:28:33 +00:00
Fariborz Jahanian e14f98e0bc objective-C blocks: Change BLOCK_HAS_EXTENDED_LAYOUT to be 1<<31.
lower 24bit is currently being used.

llvm-svn: 167678
2012-11-10 18:30:40 +00:00