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6892 Commits

Author SHA1 Message Date
Evan Cheng d22a4a1fd6 Patches to build EFI with Clang/LLVM. By Carl Norum. 
llvm-svn: 124639
 2011-02-01 01:14:13 +00:00
Devang Patel 56cc5fdf09 Keep track of incoming argument's location while emitting LiveIns. 
llvm-svn: 124611
 2011-01-31 21:38:14 +00:00
David Greene 34f7c0d8aa [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 36b1b47c5a 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 f3e20b9f0f 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 bab5e6ed0e [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 b6f1611928 [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 0cfdac078e Target/X86: Tweak win64's tailcall. 
llvm-svn: 124272
 2011-01-26 02:04:09 +00:00
NAKAMURA Takumi 9d29eff198 Fix whitespace. 
llvm-svn: 124270
 2011-01-26 02:03:37 +00:00
NAKAMURA Takumi c780782560 lib/Target/X86/X86RegisterInfo.cpp: Fix whitespace. 
llvm-svn: 124268
 2011-01-26 01:28:06 +00:00
NAKAMURA Takumi 86278dc3ea lib/Target/X86/X86RegisterInfo.cpp: Fix a typo in comment. 
llvm-svn: 124267
 2011-01-26 01:27:58 +00:00
Chris Lattner bf638d2a0d fix a missing shuffle pattern, PR9009. Patch by Artiom Myaskouvskey! 
llvm-svn: 124102
 2011-01-24 03:42:46 +00:00
Rafael Espindola b3eca9bb71 Add support for the --noexecstack option. 
llvm-svn: 124077
 2011-01-23 17:55:27 +00:00
Ted Kremenek 3c4408ceb6 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 0e7e34e476 Remove more duplicated code. 
llvm-svn: 124056
 2011-01-23 04:43:11 +00:00
Rafael Espindola aea4958ea6 Remove duplicated code. 
llvm-svn: 124054
 2011-01-23 04:28:49 +00:00
Eric Christopher 542f8a5221 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 69e6206b19 Add a missing <cctype> include, from Joerg Sonnenberger! 
llvm-svn: 123670
 2011-01-17 19:17:01 +00:00
Chris Lattner 35a2e65bcb 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 218092e68e 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 2d186574a6 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 b5241b2b59 '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 9be547cfd3 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 4d9de6be4b Cleanup 
llvm-svn: 123475
 2011-01-14 21:57:58 +00:00
Chris Lattner e93e4f118c 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 5ca1391003 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 21a64979f1 r123414 broke llvm-gcc bootstrap apparently, revert 
llvm-svn: 123422
 2011-01-14 02:07:32 +00:00
Chris Lattner 0c34cb429e 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 bbb1a54b84 Fix a few more places that should use MBB::getLastNonDebugInstr(). 
llvm-svn: 123408
 2011-01-13 22:47:43 +00:00
Jakob Stoklund Olesen 4bc5e38960 Teach frame lowering to ignore debug values after the terminators. 
llvm-svn: 123399
 2011-01-13 21:28:52 +00:00
Eric Christopher da2d2f4d1f 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 abd2dfd3dc Fix PR8946, a missing reg/reg form of movdqu. 
llvm-svn: 123242
 2011-01-11 17:04:55 +00:00
Anton Korobeynikov 441ae5b88c Update CMake stuff 
llvm-svn: 123171
 2011-01-10 12:39:23 +00:00
Anton Korobeynikov 2f93128109 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 2fb5b31578 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 4a7b48d5f4 Fix the last virtual register enumerations. 
llvm-svn: 123102
 2011-01-08 23:11:11 +00:00
Evan Cheng 078b0b095e Recognize inline asm 'rev /bin/bash, ' as a bswap intrinsic call. 
llvm-svn: 123048
 2011-01-08 01:24:27 +00:00
Evan Cheng 6eb516dbea 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 a048c83fe4 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 9f9a10691a Correctly disassemble truncated asm. 
Patch by Richard Simth.

llvm-svn: 122962
 2011-01-06 16:48:42 +00:00
Benjamin Kramer 3aa955e906 Remove dead code and silence warnings. 
llvm-svn: 122957
 2011-01-06 13:01:02 +00:00
Evan Cheng 7998b1d6fe 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 3ae2b79aa3 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 3b949bcaf3 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 81d40711f3 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 872908fdeb fix PR8900, a shuffle miscompilation. Patch by Nadav Rotem! 
llvm-svn: 122921
 2011-01-05 22:28:46 +00:00
Chris Lattner 2d7df02670 silence more self assignment warnings. 
llvm-svn: 122920
 2011-01-05 22:26:52 +00:00
Jakob Stoklund Olesen 01d4d86585 Use the EdgeBundles analysis in X86FloatingPoint instead of recomputing CFG 
bundles in the pass.

llvm-svn: 122833
 2011-01-04 21:10:11 +00:00
Jakob Stoklund Olesen f96ae684c4 Turn the EdgeBundles class into a stand-alone machine CFG analysis pass. 
The analysis will be needed by both the greedy register allocator and the
X86FloatingPoint pass. It only needs to be computed once when the CFG doesn't
change.

This pass is very fast, usually showing up as 0.0% wall time.

llvm-svn: 122832
 2011-01-04 21:10:05 +00:00
Dale Johannesen e45a2389ce Eliminate a warning compiling with llvm-gcc. (IMO the 
warning is overzealous but gcc is what it is.)

llvm-svn: 122829
 2011-01-04 19:31:24 +00:00