Commit Graph

86359 Commits

Author SHA1 Message Date
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
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
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
Benjamin Kramer 933f41161d Provide definitions for all functions.
ICC refuses to compile a class in an anonymous namespace if some functions
aren't defined. Fixes PR13477.

llvm-svn: 167676
2012-11-10 16:10:16 +00:00
Meador Inge bcd88ef764 instcombine: Migrate strcspn optimizations
This patch migrates the strcspn optimizations from the simplify-libcalls
pass into the instcombine library call simplifier.

llvm-svn: 167675
2012-11-10 15:16:48 +00:00
Benjamin Kramer 91b014cd66 Simplify the SmallVector pretty printer for LLDB a bit and make it work with reference types.
llvm-svn: 167674
2012-11-10 09:45:32 +00:00
Craig Topper a43e2fd3eb Remove unnecessary subtraction and addition by 1 around a couple for loops.
llvm-svn: 167673
2012-11-10 09:25:36 +00:00
Craig Topper 84afbf2b02 Tidy up spacing. No functional change.
llvm-svn: 167671
2012-11-10 09:02:47 +00:00
Craig Topper 2dfc1a4d24 Removed unimplemented method declaration.
llvm-svn: 167670
2012-11-10 09:00:12 +00:00
Craig Topper f5d527401f Simplify custom emitter code for pcmp(e/i)str(i/m) and make the helper functions static.
llvm-svn: 167669
2012-11-10 08:57:41 +00:00
Evan Cheng a5d363ec24 Convert an improper CodeGen test to a MC test.
llvm-svn: 167663
2012-11-10 04:30:40 +00:00
Meador Inge 03be256db9 instcombine: Query target library information to gate libcall simplifications
Several of the simplifiers migrated from the simplify-libcalls pass to
the instcombine pass were not correctly checking the target library
information to gate the simplifications.  This patch ensures that the
check is made.

llvm-svn: 167660
2012-11-10 03:11:10 +00:00
Meador Inge 2526a42ef1 Add more functions to the target library information.
In the process of migrating optimizations from the simplify-libcalls pass
to the instcombine pass I noticed that a few functions are missing from
the target library information.  These functions need to be available for
querying in the instcombine library call simplifiers.  More functions will
probably be added in the future as more simplifiers are migrated to
instcombine.

llvm-svn: 167659
2012-11-10 03:11:06 +00:00
Evan Cheng a17fea1967 xfail a bad test. This is a MC test but it's dependent on a codegen optimization which is now disabled.
llvm-svn: 167658
2012-11-10 02:34:36 +00:00
Evan Cheng 21b0348199 Disable the Thumb no-return call optimization:
mov lr, pc
b.w _foo

The "mov" instruction doesn't set bit zero to one, it's putting incorrect
value in lr. It messes up backtraces.

rdar://12663632

llvm-svn: 167657
2012-11-10 02:09:05 +00:00
Craig Topper 9268c94b15 Cleanup pcmp(e/i)str(m/i) instruction definitions and load folding support.
llvm-svn: 167652
2012-11-10 01:23:36 +00:00
Justin Holewinski 2dc9d072e5 [NVPTX] Use ABI alignment for parameters when alignment is not specified.
Affects SM 2.0+.  Fixes bug 13324.

llvm-svn: 167646
2012-11-09 23:50:24 +00:00
Evandro Menezes 03789a9ec7 Fix issue with invalid flat operand number
Avoid iterating over list of operands beyond the number of operands in it.

PS: this fixes issue with revision .
llvm-svn: 167635
2012-11-09 21:27:03 +00:00
Evandro Menezes 567698a6ca Fix issue with invalid flat operand number
Avoid iterating over list of operands beyond the number of operands in it.

llvm-svn: 167634
2012-11-09 20:29:37 +00:00
Anton Korobeynikov a305ea5511 Add ARM TARGET2 relocation. The testcase will follow with actualy use-case.
Based on the patch by Logan Chien!

llvm-svn: 167633
2012-11-09 20:20:12 +00:00
Roman Divacky 22135678b9 Switch FreeBSD/i386 back to 4byte stack alignment. This partially
reverts r126226.

llvm-svn: 167632
2012-11-09 20:10:44 +00:00
Jakob Stoklund Olesen 13d5562963 Fix assertions in updateRegMaskSlots().
The RegMaskSlots contains 'r' slots while NewIdx and OldIdx are 'B'
slots. This broke the checks in the assertions.

This fixes PR14302.

llvm-svn: 167625
2012-11-09 19:18:49 +00:00
Chad Rosier 66bb178eef Revert r167620; this can be implemented using an existing CL option.
llvm-svn: 167622
2012-11-09 18:25:27 +00:00
Chad Rosier 332fc75b2c Add support for -mstrict-align compiler option for ARM targets.
rdar://12340498

llvm-svn: 167620
2012-11-09 17:29:38 +00:00
Benjamin Kramer c280f41864 Silence GCC warning about falling off the end of a non-void function.
llvm-svn: 167618
2012-11-09 15:45:22 +00:00
Dmitry Vyukov 0044e386e9 tsan: switch to new memory_order constants (ABI compatible)
llvm-svn: 167615
2012-11-09 14:12:16 +00:00
Dmitry Vyukov 92b9e1dbfd tsan: instrument all atomics (including fetch_add, exchange, cas, etc)
llvm-svn: 167612
2012-11-09 12:55:36 +00:00
Nadav Rotem 1cfef3e9ee Add support for memory runtime check. When we can, we calculate array bounds.
If the arrays are found to be disjoint then we run the vectorized version of
the loop. If they are not, we run the scalar code.

llvm-svn: 167608
2012-11-09 07:09:44 +00:00
Nadav Rotem d1e906e1f1 indent
llvm-svn: 167607
2012-11-09 07:02:24 +00:00
NAKAMURA Takumi 43ab4ef9ba llvm/ConstantFolding.cpp: Make ReadDataFromGlobal() and FoldReinterpretLoadFromConstPtr() Big-endian-aware.
llvm-svn: 167595
2012-11-08 20:34:25 +00:00
Benjamin Kramer 08be41adbf Drop the limitation to IEEE floating point types from the fdiv of pow2 -> fmul transform.
This is safe for x87 long doubles and ppc double doubles too.

llvm-svn: 167582
2012-11-08 13:58:10 +00:00
Amara Emerson ec2cd56708 Recommit modified r167540.
Improve ARM build attribute emission for architectures types.
This also changes the default architecture emitted for a generic CPU to "v7".

llvm-svn: 167574
2012-11-08 09:51:45 +00:00
Michael Liao 73cffddb95 Add support of RTM from TSX extension
- Add RTM code generation support throught 3 X86 intrinsics:
  xbegin()/xend() to start/end a transaction region, and xabort() to abort a
  tranaction region

llvm-svn: 167573
2012-11-08 07:28:54 +00:00
Meador Inge 489b5d645f instcombine: Migrate strspn optimizations
This patch migrates the strspn optimizations from the simplify-libcalls
pass into the instcombine library call simplifier.

llvm-svn: 167568
2012-11-08 01:33:50 +00:00
Eric Christopher e5be9fc1c2 Fix up comment typo and 80-col.
llvm-svn: 167560
2012-11-07 23:38:51 +00:00
Eric Christopher 7c678de861 Add a relocation visitor to lib object. This works via caching relocated
values in a map that can be passed to consumers. Add a testcase that
ensures this works for llvm-dwarfdump.

llvm-svn: 167558
2012-11-07 23:22:07 +00:00
Hans Wennborg c3c8d95c51 Only do switch-to-lookup table transformation when TargetTransformInfo
is available.

llvm-svn: 167552
2012-11-07 21:35:12 +00:00
Akira Hatanaka 28e02ec8c1 [mips] Custom-lower ISD::FRAME_TO_ARGS_OFFSET node.
Patch by Sasa Stankovic.

llvm-svn: 167548
2012-11-07 19:10:58 +00:00
Akira Hatanaka 40f2d30987 Delete MipsFunctionInfo::NextStackOffset. No functionality change intended.
llvm-svn: 167546
2012-11-07 19:04:26 +00:00
Amara Emerson dfa5cafb98 Revert r167540 until regression tests are updated.
llvm-svn: 167545
2012-11-07 18:57:14 +00:00
Bill Wendling 3fdaa244e1 Remove accidental commit.
llvm-svn: 167544
2012-11-07 18:39:32 +00:00