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6896 Commits

Author SHA1 Message Date
David Greene
2753be260c [AVX] VEXTRACTF128 support. This commit includes patterns for 
matching EXTRACT_SUBVECTOR to VEXTRACTF128 along with support routines
to examine and translate index values.  VINSERTF128 comes next.  With
these two in place we can begin supporting more AVX operations as
INSERT/EXTRACT can be used as a fallback when 256-bit support is not
available.

llvm-svn: 124797
 2011-02-03 15:50:00 +00:00
Rafael Espindola
5bfba89832 Fix PR9127 by reversing the operands even if they have more then one use. 
Reversing the operands allows us to fold, but doesn't force us to. Also, at
this point the DAG is still being optimized, so the check for hasOneUse is not
very precise.

llvm-svn: 124773
 2011-02-03 03:58:05 +00:00
Sean Callanan
27a8820ffa Fixed a bug in the disassembler where the mandatory 0x66 
prefix would be misinterpreted in some cases on 32-bit
x86 platforms.  Thanks to Olivier Meurant for identifying
the bug.

llvm-svn: 124709
 2011-02-02 01:09:02 +00:00
Carl Norum
667d5dbdcb Test commit - fix a double 'should' in a comment. 
llvm-svn: 124652
 2011-02-01 07:38:42 +00:00
Evan Cheng
0e8c521bbd Patches to build EFI with Clang/LLVM. By Carl Norum. 
llvm-svn: 124639
 2011-02-01 01:14:13 +00:00
Devang Patel
97c467ee47 Keep track of incoming argument's location while emitting LiveIns. 
llvm-svn: 124611
 2011-01-31 21:38:14 +00:00
David Greene
1f8b96494e [AVX] Clean up the code to configure target lowering for AVX. Specify 
how to lower more/new operations.  This is a prerequisite for adding
additional AVX lowering.

llvm-svn: 124447
 2011-01-27 22:38:56 +00:00
Roman Divacky
991a87e2e3 Introduce virtual ParseRegister method in TargetAsmParser. 
Create override of this method in X86/ARM/MBlaze.

llvm-svn: 124378
 2011-01-27 17:14:22 +00:00
NAKAMURA Takumi
d418ff3b1a lib/Target/X86/X86ISelDAGToDAG.cpp: __main should be WINCALL64 on Win64. 
CALL64 marks %xmm* as dead.

llvm-svn: 124354
 2011-01-27 03:20:19 +00:00
David Greene
5c173a307b [AVX] Add INSERT_SUBVECTOR and support it on x86. This provides a 
default implementation for x86, going through the stack in a similr
fashion to how the codegen implements BUILD_VECTOR.  Eventually this
will get matched to VINSERTF128 if AVX is available.

llvm-svn: 124307
 2011-01-26 19:13:22 +00:00
David Greene
93b74739e7 [AVX] Support EXTRACT_SUBVECTOR on x86. This provides a default 
implementation of EXTRACT_SUBVECTOR for x86, going through the stack
in a similr fashion to how the codegen implements BUILD_VECTOR.
Eventually this will get matched to VEXTRACTF128 if AVX is available.

llvm-svn: 124292
 2011-01-26 15:38:49 +00:00
NAKAMURA Takumi
8ace7260cc Target/X86: Tweak win64's tailcall. 
llvm-svn: 124272
 2011-01-26 02:04:09 +00:00
NAKAMURA Takumi
066378440a Fix whitespace. 
llvm-svn: 124270
 2011-01-26 02:03:37 +00:00
NAKAMURA Takumi
a3d094f248 lib/Target/X86/X86RegisterInfo.cpp: Fix whitespace. 
llvm-svn: 124268
 2011-01-26 01:28:06 +00:00
NAKAMURA Takumi
1557668f7b lib/Target/X86/X86RegisterInfo.cpp: Fix a typo in comment. 
llvm-svn: 124267
 2011-01-26 01:27:58 +00:00
Chris Lattner
9ba0a83f2b fix a missing shuffle pattern, PR9009. Patch by Artiom Myaskouvskey! 
llvm-svn: 124102
 2011-01-24 03:42:46 +00:00
Rafael Espindola
547873da60 Add support for the --noexecstack option. 
llvm-svn: 124077
 2011-01-23 17:55:27 +00:00
Ted Kremenek
880c19c032 Null initialize a few variables flagged by 
clang's -Wuninitialized-experimental warning.
While these don't look like real bugs, clang's
-Wuninitialized-experimental analysis is stricter
than GCC's, and these fixes have the benefit
of being general nice cleanups.

llvm-svn: 124073
 2011-01-23 17:05:06 +00:00
Rafael Espindola
492ad6ca06 Remove more duplicated code. 
llvm-svn: 124056
 2011-01-23 04:43:11 +00:00
Rafael Espindola
59c1246cee Remove duplicated code. 
llvm-svn: 124054
 2011-01-23 04:28:49 +00:00
Eric Christopher
e8aa8b114f The stub routine that we're calling uses test and so clobbers 
the flags.

llvm-svn: 123712
 2011-01-18 01:37:20 +00:00
Douglas Gregor
49f7d8c38c Add a missing <cctype> include, from Joerg Sonnenberger! 
llvm-svn: 123670
 2011-01-17 19:17:01 +00:00
Chris Lattner
dde85de90f fix PR8514, a bug where the "heroic" transformation of shift/and 
into and/shift would cause nodes to move around and a dangling pointer
to happen.  The code tried to avoid this with a HandleSDNode, but 
got the details wrong.

llvm-svn: 123578
 2011-01-16 08:48:11 +00:00
Chris Lattner
24ea7f696e fix PR8981, a crash trying to form a conditional inc with a floating point compare. 
llvm-svn: 123560
 2011-01-16 02:56:53 +00:00
Chris Lattner
c4d1d86d3e reapply my fix for PR8961 with a tweak to properly handle 
multi-instruction sequences like calls.  Many thanks to Jakob for
finding a testcase.

llvm-svn: 123559
 2011-01-16 02:27:38 +00:00
Ted Kremenek
4b09cdedb2 'HiReg' is written but never read. Nuke its 
declaration and its assignments.

Found by clang static analyzer.

llvm-svn: 123486
 2011-01-14 22:34:13 +00:00
Anton Korobeynikov
1f9df99db1 Add a possibility to switch between CFI directives- and table-based frame description emission. Currently all the backends use table-based stuff. 
llvm-svn: 123476
 2011-01-14 21:58:08 +00:00
Anton Korobeynikov
6b2f110a3d Cleanup 
llvm-svn: 123475
 2011-01-14 21:57:58 +00:00
Chris Lattner
eba719204c revert my fastisel patch again which apparently still gives the 
llvm-gcc-i386-linux-selfhost buildbot heartburn...

llvm-svn: 123431
 2011-01-14 06:14:33 +00:00
Chris Lattner
ee950eeb24 reapply r123414 now that the botz are calmed down and the fix is already in. 
llvm-svn: 123427
 2011-01-14 04:24:28 +00:00
Chris Lattner
349735530b r123414 broke llvm-gcc bootstrap apparently, revert 
llvm-svn: 123422
 2011-01-14 02:07:32 +00:00
Chris Lattner
5baec05809 fix PR8961 - a fast isel miscompilation where we'd insert a new instruction 
after sext's generated for addressing that got folded.  Previously we compiled
test5 into:

_test5:                                 ## @test5
## BB#0:
        movq    -8(%rsp), %rax          ## 8-byte Reload
        movq    (%rdi,%rax), %rdi
        addq    %rdx, %rdi
        movslq  %esi, %rax
        movq    %rax, -8(%rsp)          ## 8-byte Spill
        movq    %rdi, %rax
        ret

which is insane and wrong.  Now we produce:

_test5:                                 ## @test5
## BB#0:
	movslq	%esi, %rax
	movq	(%rdi,%rax), %rax
	addq	%rdx, %rax
	ret

llvm-svn: 123414
 2011-01-14 00:01:01 +00:00
Jakob Stoklund Olesen
918de3a3b8 Fix a few more places that should use MBB::getLastNonDebugInstr(). 
llvm-svn: 123408
 2011-01-13 22:47:43 +00:00
Jakob Stoklund Olesen
0f2b9d9dc4 Teach frame lowering to ignore debug values after the terminators. 
llvm-svn: 123399
 2011-01-13 21:28:52 +00:00
Eric Christopher
3821f63f4b Experiment with changing the default 32-bit linux stack alignment to 
16 bytes for PR8969. Update all testcases accordingly.

llvm-svn: 123367
 2011-01-13 06:47:10 +00:00
Chris Lattner
586e7af07d Fix PR8946, a missing reg/reg form of movdqu. 
llvm-svn: 123242
 2011-01-11 17:04:55 +00:00
Anton Korobeynikov
abd9a868df Update CMake stuff 
llvm-svn: 123171
 2011-01-10 12:39:23 +00:00
Anton Korobeynikov
cf5967630b Rename TargetFrameInfo into TargetFrameLowering. Also, put couple of FIXMEs and fixes here and there. 
llvm-svn: 123170
 2011-01-10 12:39:04 +00:00
Jakob Stoklund Olesen
32f1783ca1 Simplify a bunch of isVirtualRegister() and isPhysicalRegister() logic. 
These functions not longer assert when passed 0, but simply return false instead.

No functional change intended.

llvm-svn: 123155
 2011-01-10 02:58:51 +00:00
Jakob Stoklund Olesen
e2e0850651 Fix the last virtual register enumerations. 
llvm-svn: 123102
 2011-01-08 23:11:11 +00:00
Evan Cheng
1afd04fc59 Recognize inline asm 'rev /bin/bash, ' as a bswap intrinsic call. 
llvm-svn: 123048
 2011-01-08 01:24:27 +00:00
Evan Cheng
aa16fd02ad Do not model all INLINEASM instructions as having unmodelled side effects. 
Instead encode llvm IR level property "HasSideEffects" in an operand (shared
with IsAlignStack). Added MachineInstrs::hasUnmodeledSideEffects() to check
the operand when the instruction is an INLINEASM.

This allows memory instructions to be moved around INLINEASM instructions.

llvm-svn: 123044
 2011-01-07 23:50:32 +00:00
Evan Cheng
ae26b91353 Revert r122955. It seems using movups to lower memcpy can cause massive regression (even on Nehalem) in edge cases. I also didn't see any real performance benefit. 
llvm-svn: 123015
 2011-01-07 19:35:30 +00:00
Rafael Espindola
64814fff0b Correctly disassemble truncated asm. 
Patch by Richard Simth.

llvm-svn: 122962
 2011-01-06 16:48:42 +00:00
Benjamin Kramer
dcff486813 Remove dead code and silence warnings. 
llvm-svn: 122957
 2011-01-06 13:01:02 +00:00
Evan Cheng
1a1771584e Use movups to lower memcpy and memset even if it's not fast (like corei7). 
The theory is it's still faster than a pair of movq / a quad of movl. This
will probably hurt older chips like P4 but should run faster on current
and future Intel processors. rdar://8817010

llvm-svn: 122955
 2011-01-06 07:58:36 +00:00
Evan Cheng
cb39cc2164 Re-implement r122936 with proper target hooks. Now getMaxStoresPerMemcpy 
etc. takes an option OptSize. If OptSize is true, it would return
the inline limit for functions with attribute OptSize.

llvm-svn: 122952
 2011-01-06 06:52:41 +00:00
Bill Wendling
a59afdaec5 PR8919 - LLVM incorrectly generates "_alloca" as the stack probing call. That 
works only on MinGW32. On 64-bit, the function to call is "__chkstk".
Patch by KS Sreeram!

llvm-svn: 122934
 2011-01-06 00:50:34 +00:00
Bill Wendling
fae0dd1afa PR8918 - When used with MinGW64, LLVM generates a "calll __main" at the 
beginning of the "main" function. The assembler complains about the invalid
suffix for the 'call' instruction. The right instruction is "callq __main".
Patch by KS Sreeram!

llvm-svn: 122933
 2011-01-06 00:47:10 +00:00
Chris Lattner
3ef9db5cd4 fix PR8900, a shuffle miscompilation. Patch by Nadav Rotem! 
llvm-svn: 122921
 2011-01-05 22:28:46 +00:00