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Author SHA1 Message Date
Meador Inge
ba025d5d90 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
af8ed30774 Update the vectorizer docs. 
llvm-svn: 167688
 2012-11-11 06:47:51 +00:00
Meador Inge
e093f6c41e 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
bf03751391 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
0e46931b95 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
0f2d71a695 Fix a comment typo and add comments. 
llvm-svn: 167684
 2012-11-11 05:15:00 +00:00
Meador Inge
13e6be2fd6 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
a062b17960 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
9ad3990ff0 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
20d52f752f 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
a202e0c179 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
511004a2cd 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
f8089e0864 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
f04d47d0ca Tidy up spacing. No functional change. 
llvm-svn: 167671
 2012-11-10 09:02:47 +00:00
Craig Topper
2f64a42f1c Removed unimplemented method declaration. 
llvm-svn: 167670
 2012-11-10 09:00:12 +00:00
Craig Topper
adebc23cac 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
2599006e46 Convert an improper CodeGen test to a MC test. 
llvm-svn: 167663
 2012-11-10 04:30:40 +00:00
Meador Inge
9b62fb8d77 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
c87e59c34e 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
6ed26ba70c 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
ebe241fb9d 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
f424da6ff9 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
be8faeed70 [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
3163eb097c 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 #167634.
llvm-svn: 167635
 2012-11-09 21:27:03 +00:00
Evandro Menezes
065305e336 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
9040102509 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
9196fa48cc 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
887571e652 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
c928e82253 Revert r167620; this can be implemented using an existing CL option. 
llvm-svn: 167622
 2012-11-09 18:25:27 +00:00
Chad Rosier
2962c226a7 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
35333a7560 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
fab21a5c47 tsan: switch to new memory_order constants (ABI compatible) 
llvm-svn: 167615
 2012-11-09 14:12:16 +00:00
Dmitry Vyukov
62df6da6a6 tsan: instrument all atomics (including fetch_add, exchange, cas, etc) 
llvm-svn: 167612
 2012-11-09 12:55:36 +00:00
Nadav Rotem
ee232d62d1 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
41e4da88d8 indent 
llvm-svn: 167607
 2012-11-09 07:02:24 +00:00
NAKAMURA Takumi
cda12da6b9 llvm/ConstantFolding.cpp: Make ReadDataFromGlobal() and FoldReinterpretLoadFromConstPtr() Big-endian-aware. 
llvm-svn: 167595
 2012-11-08 20:34:25 +00:00
Benjamin Kramer
9647e19de7 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
f7a46cedbc 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
59114df23b 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
28cefe8802 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
f81ddf639b Fix up comment typo and 80-col. 
llvm-svn: 167560
 2012-11-07 23:38:51 +00:00
Eric Christopher
b34bece6a8 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
d166484584 Only do switch-to-lookup table transformation when TargetTransformInfo 
is available.

llvm-svn: 167552
 2012-11-07 21:35:12 +00:00
Akira Hatanaka
b8f5a8ab0b [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
381d412e60 Delete MipsFunctionInfo::NextStackOffset. No functionality change intended. 
llvm-svn: 167546
 2012-11-07 19:04:26 +00:00
Amara Emerson
8c6795b9fc Revert r167540 until regression tests are updated. 
llvm-svn: 167545
 2012-11-07 18:57:14 +00:00
Bill Wendling
f455fc4cc9 Remove accidental commit. 
llvm-svn: 167544
 2012-11-07 18:39:32 +00:00
Hans Wennborg
7dd7657cec Fix bad test IR in switch_to_lookup_table.ll 
llvm-svn: 167543
 2012-11-07 18:38:24 +00:00
Amara Emerson
44340f40d7 Improve ARM build attribute emission for architectures types. 
This also changes the default architecture emitted for a generic CPU to "v7".

llvm-svn: 167540
 2012-11-07 18:01:03 +00:00
Pawel Wodnicki
41cea79df9 fix typo PR1476 
llvm-svn: 167536
 2012-11-07 17:00:18 +00:00