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11128 Commits

Author SHA1 Message Date
Rafael Espindola
e2bc98a2b2 Implement more alias cases. 
llvm-svn: 115699
 2010-10-05 22:26:43 +00:00
Bill Wendling
4938e4d00a PSHUFW is in SSE, not SSSE3. 
llvm-svn: 115691
 2010-10-05 21:58:12 +00:00
Chris Lattner
ca34143ddd Replace a gross hack (the MOV64ri_alt instruction) with a slightly less 
gross hack (having the asmmatcher handle the alias).

llvm-svn: 115685
 2010-10-05 21:09:45 +00:00
Rafael Espindola
5762077d52 Don't crash in a strange .size directive. 
llvm-svn: 115684
 2010-10-05 21:02:45 +00:00
Michael J. Spencer
19b6962abb MC-COFF: Fix (PR8278) temporary symbol relocations. 
llvm-svn: 115656
 2010-10-05 19:48:03 +00:00
Rafael Espindola
0b536fb0fb Add support for a fill value in the .zero directive. 
llvm-svn: 115655
 2010-10-05 19:42:57 +00:00
Rafael Espindola
f850cfbc16 Implement a simple alias case and refactor the code a bit so that the 
isInSymtab and isLocal logic in the two loops don't get easily out of sync.

llvm-svn: 115643
 2010-10-05 18:01:23 +00:00
Michael J. Spencer
26a49596d7 test/COFF: Fix symbol indexes and names. Update tests to match. 
llvm-svn: 115642
 2010-10-05 17:57:08 +00:00
Michael J. Spencer
723b94923a test/COFF: Remove temp file usage. 
llvm-svn: 115641
 2010-10-05 17:56:56 +00:00
Michael J. Spencer
513daaafdd test/coff-dump: Support reading from stdin. 
llvm-svn: 115640
 2010-10-05 17:56:46 +00:00
Michael J. Spencer
8d37ea7265 Cleanup Whitespace. 
llvm-svn: 115639
 2010-10-05 17:56:37 +00:00
Owen Anderson
20b48697cd Use a more efficient lowering of uint64_t --> float that can take advantage of hardware signed integer conversion without 
having to do a double cast (uint64_t --> double --> float).  This is based on the algorithm from compiler_rt's __floatundisf
for X86-64.

llvm-svn: 115634
 2010-10-05 17:24:05 +00:00
Rafael Espindola
e829a55e8e Produce a undefined reference to _GLOBAL_OFFSET_TABLE_ when needed. 
llvm-svn: 115623
 2010-10-05 15:48:37 +00:00
Rafael Espindola
9cd97ce8ed Tests that now pass. 
llvm-svn: 115622
 2010-10-05 15:43:32 +00:00
NAKAMURA Takumi
33e956ce63 test/CodeGen/X86/atomic_op.ll: Rename @main to @func. Extra sequences will be inserted to @main as prologue on cygming, to fail. 
llvm-svn: 115611
 2010-10-05 11:16:24 +00:00
Sean Callanan
be873cd53a Added a testcase for the ENTER instruction. 
llvm-svn: 115580
 2010-10-05 00:21:40 +00:00
Bill Wendling
b94ade249a The pshufw instruction came about in MMX2 when SSE was introduced. Don't place 
it in with the SSSE3 instructions.

Steward! Could you place this chair by the aft sun deck? I'm trying to get away
from the Astors. They are such boors!

llvm-svn: 115552
 2010-10-04 20:24:01 +00:00
Rafael Espindola
dcac047c7f Implement ELF::R_X86_64_GOTPCREL. 
llvm-svn: 115547
 2010-10-04 19:51:39 +00:00
Rafael Espindola
f7e642c0da Produce a R_X86_64_PLT32 when needed. 
llvm-svn: 115541
 2010-10-04 19:04:13 +00:00
Rafael Espindola
08361a0329 Produce a R_X86_64_GOT32 when needed. 
llvm-svn: 115537
 2010-10-04 18:44:25 +00:00
Jan Wen Voung
9c76bbf90a Add hook in MCSection to decide when to use "optimized nops", for each 
section kind. Previously, optimized nops were only used for MachO.
Also added tests for ELF and COFF.

llvm-svn: 115523
 2010-10-04 17:32:41 +00:00
Rafael Espindola
491c3f9ef7 Include the section address in the computation of the relocation. 
llvm-svn: 115509
 2010-10-04 15:59:01 +00:00
Rafael Espindola
ce6ea76503 Correctly compute the relocation when it is not in the first fragment. 
llvm-svn: 115506
 2010-10-04 15:28:43 +00:00
Anton Korobeynikov
f1acea8615 va_args support for Win64. 
Patch by Cameron!

llvm-svn: 115480
 2010-10-03 22:52:07 +00:00
Anton Korobeynikov
31b3b2ca41 Properly emit stack probe on win64 (for non-mingw targets). 
Based on the patch by Cameron Esfahani!

llvm-svn: 115479
 2010-10-03 22:02:38 +00:00
Eli Friedman
35432e5685 Add 3DNowA instructions. 
llvm-svn: 115477
 2010-10-03 20:23:13 +00:00
Chris Lattner
f58652610d unbreak buildbot 
llvm-svn: 115476
 2010-10-03 20:02:48 +00:00
Chris Lattner
d03783eaf2 the immediate field of pshufw is actually an 8-bit field, not a 8-bit field that is sign extended. This fixes PR8288 
llvm-svn: 115473
 2010-10-03 19:09:13 +00:00
Chris Lattner
4599fd89fd add support for the prefetch/prefetchw instructions, move femms into 
the right file.  The assembler supports all the 3dnow instructions now,
but not the "3dnowa" ones.

llvm-svn: 115468
 2010-10-03 18:42:30 +00:00
Chris Lattner
6d6f84f99c what the heck, add support for the rest of the 3dNow! binary operations. 
llvm-svn: 115467
 2010-10-03 18:24:18 +00:00
Chris Lattner
8174253484 Implement support for the bizarre 3DNow! encoding (which is unlike anything 
else in X86), and add support for pavgusb.  This is apparently the
only instruction (other than movsx) that is preventing ffmpeg from building
with clang.

If someone else is interested in banging out the rest of the 3DNow! 
instructions, it should be quite easy now.

llvm-svn: 115466
 2010-10-03 18:08:05 +00:00
Bill Wendling
f1552256a1 Add test to make sure that the MMX intrinsic calls make it out the other end in 
tact.

llvm-svn: 115458
 2010-10-03 03:30:30 +00:00
Bill Wendling
0090e3b6a1 Auto-upgrade tests for the new MMX intrinsic calls. 
llvm-svn: 115456
 2010-10-03 01:12:20 +00:00
Rafael Espindola
e209fd8ab7 Implement a very basic PIC case. 
llvm-svn: 115454
 2010-10-03 00:46:57 +00:00
Chris Lattner
3c29a2b776 fix a regression introduced in r115243, in which the instruction 
backing int_x86_ssse3_pshuf_w got removed.  This caused PR8280.

llvm-svn: 115422
 2010-10-02 21:32:15 +00:00
Chris Lattner
0f389ed003 actually, move the elf tests into the existing elf dir. 
llvm-svn: 115416
 2010-10-02 18:53:48 +00:00
Chris Lattner
1a96333869 consolidate ELF tests into asmparser tests. 
llvm-svn: 115415
 2010-10-02 18:52:57 +00:00
Chris Lattner
3528fce592 move ARM MC tests up one level. 
llvm-svn: 115414
 2010-10-02 18:52:05 +00:00
Bill Wendling
1f47b01f08 Need to specify SSE4 for machines which don't have SSE4. The code checked for is generated by SSE4. Otherwise, we get something else. 
llvm-svn: 115352
 2010-10-01 21:39:35 +00:00
Owen Anderson
a88628cd72 Now that the profitable bits of EnableFullLoadPRE have been enabled by default, rip out the remainder. 
Anyone interested in more general PRE would be better served by implementing it separately, to get real
anticipation calculation, etc.

llvm-svn: 115337
 2010-10-01 20:02:55 +00:00
Devang Patel
1f2abb3af0 Fix code gen crash reported in PR 8235. We still lose debug info for the unused argument here. This is a known limitation recorded debuginfo-tests/trunk/dbg-declare2.ll function 'f6' test case. 
llvm-svn: 115323
 2010-10-01 19:00:44 +00:00
Bill Wendling
89da1661a3 We must check for something. 
llvm-svn: 115309
 2010-10-01 10:20:10 +00:00
Bill Wendling
a5e9e55778 Disable tests until I can figure out why they're failing on just two machines but not others. 
llvm-svn: 115308
 2010-10-01 10:01:10 +00:00
Bill Wendling
18960d3eaa Try adding an mtriple. 
llvm-svn: 115307
 2010-10-01 09:40:50 +00:00
Kalle Raiskila
c6bdc97934 Zap some redundant 'ori $?, $?, 0' from SPU. 
Also remove some code that died in the process.
One now non-existant ori is checked for.

llvm-svn: 115306
 2010-10-01 09:20:01 +00:00
Bill Wendling
7cb3d0c43e FileCheck-ize this test. 
llvm-svn: 115304
 2010-10-01 08:55:48 +00:00
Bill Wendling
7b19f58e1c FileCheck-ize this test. 
llvm-svn: 115303
 2010-10-01 08:50:12 +00:00
Chris Lattner
bf0f375aba fix PR8267 - Instcombine shouldn't optimizer away volatile memcpy's. 
llvm-svn: 115296
 2010-10-01 05:51:02 +00:00
Chris Lattner
c131f7d23b upgrade this test. 
llvm-svn: 115295
 2010-10-01 05:47:16 +00:00
Chris Lattner
01c6e93ea4 fix rdar://8494845 + PR8244 - a miscompile exposed by my patch in r101350 
llvm-svn: 115294
 2010-10-01 05:36:09 +00:00
Dale Johannesen
d2ab5dccdc One more +sse2. 
llvm-svn: 115293
 2010-10-01 05:08:18 +00:00
Chris Lattner
2c53557b0d move X86 subdir up a level 
llvm-svn: 115292
 2010-10-01 04:32:20 +00:00
Dale Johannesen
4d1ca2ab29 Mark all these as needing SSE2. Should fix PPC and 
maybe even Linux.

llvm-svn: 115291
 2010-10-01 04:17:55 +00:00
Dale Johannesen
c9a4261060 Disable these tests for now; it's not obvious why they fail on Linux. 
llvm-svn: 115257
 2010-10-01 00:59:21 +00:00
Dale Johannesen
51bf690108 Make test not sensitive to register choice. 
llvm-svn: 115250
 2010-10-01 00:16:17 +00:00
Dale Johannesen
c14a1eda84 Massive rewrite of MMX: 
The x86_mmx type is used for MMX intrinsics, parameters and
return values where these use MMX registers, and is also
supported in load, store, and bitcast.

Only the above operations generate MMX instructions, and optimizations
do not operate on or produce MMX intrinsics. 

MMX-sized vectors <2 x i32> etc. are lowered to XMM or split into
smaller pieces.  Optimizations may occur on these forms and the
result casted back to x86_mmx, provided the result feeds into a
previous existing x86_mmx operation.

The point of all this is prevent optimizations from introducing
MMX operations, which is unsafe due to the EMMS problem.

llvm-svn: 115243
 2010-09-30 23:57:10 +00:00
NAKAMURA Takumi
66978c202a test/CodeGen/X86/sibcall.ll: Add explicit triplets and remove XFAIL: apple-darwin8. 
llvm-svn: 115215
 2010-09-30 22:02:06 +00:00
Owen Anderson
5adba2c2ff We do want to allow LoadPRE to perform LICM-like transformations: we already consider PHI nodes to be negligible for 
code size (making this transform code size neutral), and it allows us to hoist values out of loops, which is always
a good thing.

llvm-svn: 115205
 2010-09-30 20:53:04 +00:00
Jakob Stoklund Olesen
603950c4af Try again to disable critical edge splitting in CodeGenPrepare. 
The bug that broke i386 linux has been fixed in r115191.

llvm-svn: 115204
 2010-09-30 20:51:52 +00:00
Rafael Espindola
5aae0d6863 Factor some logic into ShouldRelocOnSymbol. This simplifies the code and 
fixes some cases where we were producing relocations with at symbol that
should use a section instead.

llvm-svn: 115194
 2010-09-30 20:18:35 +00:00
Jakob Stoklund Olesen
8f4d623f9a When isel is emitting instructions for an x86 target without CMOV, the CFG is 
edited during emission.

If the basic block ends in a switch that gets lowered to a jump table, any
phis at the default edge were getting updated wrong. The jump table data
structure keeps a pointer to the header blocks that wasn't getting updated
after the MBB is split.

This bug was exposed on 32-bit Linux when disabling critical edge splitting in
codegen prepare.

The fix is to uipdate stale MBB pointers whenever a block is split during
emission.

llvm-svn: 115191
 2010-09-30 19:44:31 +00:00
Chris Lattner
5bf2e8957f more cleanups. 
llvm-svn: 115178
 2010-09-30 17:29:05 +00:00
Chris Lattner
06b22c9040 merge and clean up tests. 
llvm-svn: 115177
 2010-09-30 17:24:05 +00:00
Chris Lattner
3eb4b129ce merge two tests. 
llvm-svn: 115175
 2010-09-30 17:18:22 +00:00
Chris Lattner
4305b3410a rename test 
llvm-svn: 115174
 2010-09-30 17:16:49 +00:00
Chris Lattner
3c83d4c5b2 generalize test. 
llvm-svn: 115172
 2010-09-30 17:15:42 +00:00
Chris Lattner
ba10206990 rename test. 
llvm-svn: 115171
 2010-09-30 17:14:55 +00:00
Chris Lattner
4e40805fb9 merge two tests. 
llvm-svn: 115170
 2010-09-30 17:14:30 +00:00
Chris Lattner
df2f5c0a40 preemptively add the rest of the non-n fpstack instructions. 
llvm-svn: 115168
 2010-09-30 17:11:29 +00:00
Chris Lattner
66e54dbadc merge two tests. 
llvm-svn: 115165
 2010-09-30 17:05:37 +00:00
Chris Lattner
bcc528fb04 fix this to not be completely broken. 
llvm-svn: 115164
 2010-09-30 17:04:59 +00:00
Chris Lattner
79ba84083a update, unxfail, fix bogus encodings. 
llvm-svn: 115163
 2010-09-30 17:03:20 +00:00
Chris Lattner
ae85c49bd0 update and unxfail 
llvm-svn: 115162
 2010-09-30 17:00:53 +00:00
Chris Lattner
cd33e7e984 unxfail this by fixing syntactic differences. 
llvm-svn: 115161
 2010-09-30 16:59:28 +00:00
Chris Lattner
8e7a4b7b57 implement support for finit, PR8258 
llvm-svn: 115156
 2010-09-30 16:42:53 +00:00
Chris Lattner
fecf3a7717 add support for fstcw, PR8259 
llvm-svn: 115154
 2010-09-30 16:39:29 +00:00
Jan Wen Voung
7df9bf0092 Move logic of determining ELF entsize from the .s printer to initialization 
time. That way, the EntrySize field is initialized for other code paths, 
namely, the .ll -> .o code path.

llvm-svn: 115141
 2010-09-30 05:59:22 +00:00
Rafael Espindola
b371d39f74 Add another test that now passes. 
llvm-svn: 115137
 2010-09-30 04:22:07 +00:00
Rafael Espindola
480ee577ad Correctly produce R_X86_64_32 or R_X86_64_32S. 
With this patch in

movq    $foo, foo(%rip)
foo:
.long   foo

We produce a R_X86_64_32S for the first relocation and R_X86_64_32 for the
second one.

llvm-svn: 115134
 2010-09-30 03:11:42 +00:00
Jason W Kim
7822e6aab5 Tiny patch for proof-of-concept cleanup of ARMAsmPrinter::EmitStartOfAsmFile() 
Small test for sanity check of resulting ARM .s file.
Tested against -r115129.

llvm-svn: 115133
 2010-09-30 02:45:56 +00:00
Jan Wen Voung
0d25ddb1de Have ELFAsmParser.cpp use the already parsed "Size" (entry size) when 
constructing a section. Test for a few cases also included.

llvm-svn: 115132
 2010-09-30 02:41:46 +00:00
Rafael Espindola
3e2630deca Make it possible for the MCObjectWriter to decide if a given fixup is fully 
resolved or not. Different object files have different restrictions and
different native assemblers have different idiosyncrasies we want to emulate
for now.

Move the existing MachO logic to the new place and implement an ELF one that
gets fixups to globals right.

llvm-svn: 115131
 2010-09-30 02:22:20 +00:00
Benjamin Kramer
2a44a539e2 Add constant folding for strspn and strcspn to SimplifyLibCalls. 
llvm-svn: 115116
 2010-09-30 00:58:35 +00:00
Benjamin Kramer
476bfb7a10 Add strpbrk folding to SimplifyLibCalls. 
llvm-svn: 115111
 2010-09-29 23:52:12 +00:00
Benjamin Kramer
cec2603ec2 Simplify the loop in StrChrOptimizer. FileCheckize test. 
llvm-svn: 115095
 2010-09-29 22:29:12 +00:00
Benjamin Kramer
75a825ff6b Teach SimplifyLibCalls how to optimize strrchr. 
llvm-svn: 115091
 2010-09-29 21:50:51 +00:00
Devang Patel
bbd003ab48 Generalize DISubprogram element to encode various flags instead of just one boolean for isArtificial. 
This is a backword compatible change.

llvm-svn: 115084
 2010-09-29 21:04:46 +00:00
Owen Anderson
8e70968a13 Fix PR8247: JumpThreading can cause a block to become unreachable while still having predecessor, if it is part of a self-loop. 
Because of this, we cannot use the Simplify* APIs, as they can assert-fail on unreachable code.  Since it's not easy to determine
if a given threading will cause a block to become unreachable, simply defer simplifying simplification to later InstCombine and/or
DCE passes.

llvm-svn: 115082
 2010-09-29 20:34:41 +00:00
Benjamin Kramer
caacff25e4 Remove PointerTracking tests. 
llvm-svn: 115072
 2010-09-29 19:20:35 +00:00
Chris Lattner
7f466d63e0 implement rdar://8491845 - Gas supports commuted forms of non-commutable instructions. 
llvm-svn: 115061
 2010-09-29 18:39:16 +00:00
Bob Wilson
d16aaccb05 Increase ARM APCS preferred alignment for i64 and f64 from 32 bits to 64 bits. 
LDM/STM instructions can run one cycle faster on some ARM processors if the
memory address is 64-bit aligned.  Radar 8489376.

llvm-svn: 115047
 2010-09-29 17:54:10 +00:00
Rafael Espindola
96509a5550 Move "local commons" to the end of .bss to match the gnu as behavior. 
llvm-svn: 115037
 2010-09-29 14:52:01 +00:00
Rafael Espindola
1b3d55417c Add a test that I forgot to add with a previous commit. 
llvm-svn: 115036
 2010-09-29 14:40:49 +00:00
Gabor Greif
c6deccbe3a do not compare actual branch labels; this may fix llvm-gcc-x86_64-darwin10-cross-mingw32 buildbot too 
llvm-svn: 115034
 2010-09-29 10:45:43 +00:00
Gabor Greif
e1de402213 improve heuristics to find the 'and' corresponding to 'tst' to also catch opportunities on thumb2 
added some doxygen on the way

llvm-svn: 115033
 2010-09-29 10:12:08 +00:00
Chris Lattner
9c58de2dc4 fix rdar://8490728 - llvm-mc rejects gpr64 form of 'movmskpd' 
llvm-svn: 115029
 2010-09-29 05:05:03 +00:00
Chris Lattner
890c21a20a add assembler support for the cvtsd2sil/cvtsd2siq mnemonics, rdar://8456382 
llvm-svn: 115027
 2010-09-29 04:55:40 +00:00
Michael J. Spencer
65330be0ae MC-COFF: Fix test. IMAGE_SYM_CLASS_LABEL should never have been emitted. 
llvm-svn: 115024
 2010-09-29 03:59:25 +00:00
Chris Lattner
54939ddf1f make the x86 mccode emitter emit the 0x67 and 0x66 prefix bytes in the same 
order as cctools for diffability.

llvm-svn: 115022
 2010-09-29 03:43:43 +00:00
Chris Lattner
13354d7bbc implement support for 32-bit address operands in 64-bit mode, which 
are defined to emit the 0x67 prefix byte.  rdar://8482675

llvm-svn: 115021
 2010-09-29 03:33:25 +00:00
Chris Lattner
c14d59589c add basic avx support to the disassembler, also teach it about ssmem/sdmem 
operands.

With this done, we can remove the _Int suffixes from the round instructions
without the disassembler blowing up.  This allows the assembler to support
them, implementing rdar://8456376 - llvm-mc rejects 'roundss'

llvm-svn: 115019
 2010-09-29 02:57:56 +00:00
Chris Lattner
f90296b045 add asmparser support for cvttpd2dq by removing some Int_ prefixes. 
Clean up cvttps2dq by removing some redundant implementations of the
same instruction.  rdar://8456382

llvm-svn: 115018
 2010-09-29 02:36:32 +00:00
Chris Lattner
e5c5c8dc1f implement rdar://8456382 - cvtsd2si support, by removing some Int_ prefixes. 
llvm-svn: 115017
 2010-09-29 02:24:57 +00:00
Chris Lattner
cbecb9a4d3 implement rdar://8456378 and PR7557 - support for the fstsw, 
an instruction that requires a WHOLE NEW wonderful kind of alias.

llvm-svn: 115015
 2010-09-29 01:50:45 +00:00
Bill Wendling
b01224f53c And remove r114997's test. 
llvm-svn: 115003
 2010-09-28 23:24:18 +00:00
Bill Wendling
fc29f0d706 Revert r114997. It was causing a failure on darwin10-selfhost. 
llvm-svn: 115002
 2010-09-28 23:11:55 +00:00
Bill Wendling
13775375ed Fix a FIXME. _foo.eh symbols are currently always exported so that the linker 
knows about them. This is not necessary on 10.6 and later.

llvm-svn: 114997
 2010-09-28 22:36:56 +00:00
Owen Anderson
c34e1296b8 Add a subtarget hook for reporting the misprediction penalty. Use this to provide more precise 
cost modeling for if-conversion.  Now if only we had a way to estimate the misprediction probability.

Adjsut CodeGen/ARM/ifcvt10.ll.  The pipeline on Cortex-A8 is long enough that it is still profitable
to predicate an ldm, but the shorter pipeline on Cortex-A9 makes it unprofitable.

llvm-svn: 114995
 2010-09-28 21:57:50 +00:00
Anton Korobeynikov
f1be021755 User proper libcall names & condcodes while compiling for ARM EABI. 
Patch by Evzen Muller!

llvm-svn: 114991
 2010-09-28 21:39:26 +00:00
Owen Anderson
c0e1200323 Part one of switching to using a more sane heuristic for determining if-conversion profitability. 
Rather than having arbitrary cutoffs, actually try to cost model the conversion.

For now, the constants are tuned to more or less match our existing behavior, but these will be
changed to reflect realistic values as this work proceeds.

llvm-svn: 114973
 2010-09-28 18:32:13 +00:00
Jim Grosbach
ad51f6522d Add target triple info to these tests to make the results comparable when 
hosted on different platforms.

llvm-svn: 114965
 2010-09-28 17:10:36 +00:00
Rafael Espindola
c604f87ba4 On elf, undefined symbols can start with .L. 
llvm-svn: 114958
 2010-09-28 16:19:11 +00:00
Bob Wilson
dc396388cb Add a command line option "-arm-strict-align" to disallow unaligned memory 
accesses for ARM targets that would otherwise allow it.  Radar 8465431.

llvm-svn: 114941
 2010-09-28 04:09:35 +00:00
Rafael Espindola
c4d0ee0b96 Write relocations in the end of the file. This matches what gas does and 
makes files easier to diff.

llvm-svn: 114898
 2010-09-27 22:04:54 +00:00
Rafael Espindola
442f81681e Make sure .text doesn't produce extra alignment. 
llvm-svn: 114895
 2010-09-27 21:40:27 +00:00
Jakob Stoklund Olesen
c9755c5213 Don't try to constant fold libm functions with non-finite arguments. 
Usually we wouldn't do this anyway because llvm_fenv_testexcept would return an
exception, but we have seen some cases where neither errno nor fenv detect an
exception on arm-linux.

llvm-svn: 114893
 2010-09-27 21:29:20 +00:00
Daniel Dunbar
7179426193 MC/AsmParser: Handle exponents in floating point literals. 
llvm-svn: 114861
 2010-09-27 20:12:52 +00:00
Jakob Stoklund Olesen
cfed90fe40 Revert "Disable codegen prepare critical edge splitting. Machine instruction passes now" 
This reverts revision 114633. It was breaking llvm-gcc-i386-linux-selfhost.

It seems there is a downstream bug that is exposed by
-cgp-critical-edge-splitting=0. When that bug is fixed, this patch can go back
in.

Note that the changes to tailcallfp2.ll are not reverted. They were good are
required.

llvm-svn: 114859
 2010-09-27 18:43:48 +00:00
Jakob Stoklund Olesen
51362ba70e Explicitly disable CGP critical edge splitting for this test so it won't break 
by reenabling it temporarily.

llvm-svn: 114858
 2010-09-27 18:43:43 +00:00
Jakob Stoklund Olesen
d1779cf19c Don't depend on basic block numbering. 
llvm-svn: 114857
 2010-09-27 18:43:40 +00:00
Michael J. Spencer
4867bf0fad MC-COFF: Drop empty sections, and label symbols. Convert relocations 
targeted at symbols into relocations relative to the containing section.

Patch by Nathan Jeffords!

llvm-svn: 114823
 2010-09-27 08:58:26 +00:00
Chris Lattner
b335259960 yet more aliases. 
llvm-svn: 114822
 2010-09-27 07:24:57 +00:00
Chris Lattner
be06321564 add a couple more aliases, rdar://8456378 
llvm-svn: 114821
 2010-09-27 07:21:41 +00:00
Chris Lattner
26c94e7200 fix rdar://8470918 - llvm-mc can't assemble smovl 
llvm-svn: 114819
 2010-09-27 07:11:53 +00:00
Chris Lattner
5cadf79b60 Fix rdar://8468087 - llvm-mc commutes fmul (and friend) operands. 
My previous fix for rdar://8456371 should only apply to fmulp/faddp,
not to fmul/fadd.  Instruction set orthogonality is overrated or 
something.

llvm-svn: 114818
 2010-09-27 07:08:21 +00:00
Chris Lattner
0ebcc18dec the latest assembler that runs on powerpc 10.4 machines doesn't 
support aligned comm.  Detect when compiling for 10.4 and don't
emit an alignment for comm.  THis will hopefully fix PR8198.

llvm-svn: 114817
 2010-09-27 06:44:54 +00:00
Chris Lattner
75edc6b6e0 implement support for 'clr' alias. This is part of rdar://8416805, 
but balrog was wanting it on irc.

llvm-svn: 114809
 2010-09-27 04:23:03 +00:00
Che-Liang Chiou
aeccb0793b Add test case for PTX ret instruction 
llvm-svn: 114789
 2010-09-25 07:49:54 +00:00
Che-Liang Chiou
0eaf890a31 Add ret instruction to PTX backend 
llvm-svn: 114788
 2010-09-25 07:46:17 +00:00
Rafael Espindola
e4c0edf697 Move ELF to HasReliableSymbolDifference=true. Also take the opportunity to put 
symbols defined in merge sections in independent atoms.

llvm-svn: 114786
 2010-09-25 05:42:19 +00:00
Owen Anderson
856fcd57d1 LoadPRE was not properly checking that the load it was PRE'ing post-dominated the block it was being hoisted to. 
Splitting critical edges at the merge point only addressed part of the issue; it is also possible for non-post-domination
to occur when the path from the load to the merge has branches in it.  Unfortunately, full anticipation analysis is
time-consuming, so for now approximate it.  This is strictly more conservative than real anticipation, so we will miss
some cases that real PRE would allow, but we also no longer insert loads into paths where they didn't exist before. :-)

This is a very slight net positive on SPEC for me (0.5% on average).  Most of the benchmarks are largely unaffected, but
when it pays off it pays off decently: 181.mcf improves by 4.5% on my machine.

llvm-svn: 114785
 2010-09-25 05:26:18 +00:00
Rafael Espindola
b70ab59ca8 Reapply 114678 and 114667. Reverting them did not fix the bot: 
http://google1.osuosl.org:8011/builders/llvm-gcc-i386-linux-selfhost/builds/69

llvm-svn: 114761
 2010-09-24 21:19:03 +00:00
Jakob Stoklund Olesen
eb9c5129d1 Be more precise when trying to XFAIL this tester: http://google1.osuosl.org:8011/builders/llvm-arm-linux 
llvm-svn: 114755
 2010-09-24 20:34:49 +00:00
Evan Cheng
1d50dccdc5 Enable code placement optimization pass for ARM. 
llvm-svn: 114746
 2010-09-24 19:07:23 +00:00
Rafael Espindola
909ffec6eb Revert 114678 and 114667 to see if 
http://google1.osuosl.org:8011/builders/llvm-gcc-i386-linux-selfhost

gets happy.

llvm-svn: 114742
 2010-09-24 18:48:08 +00:00
Daniel Dunbar
452f5345c5 MC/AsmParser: Handle a missed case of floating literals in the lexer. 
llvm-svn: 114733
 2010-09-24 17:10:26 +00:00
Michael J. Spencer
090c16fb92 CMake: Build unittests. 
llvm-svn: 114725
 2010-09-24 09:01:13 +00:00
Michael J. Spencer
7160458b8e Fix whitespace. 
llvm-svn: 114724
 2010-09-24 09:00:56 +00:00
Daniel Dunbar
702c4ef9d8 MC/AsmParser: Support .single and .double for embedding floating point literals. 
- I believe more modern 'gas' supports a more enhanced set of arithmetic on
   them, but for now the only thing we can do is emit them as data.

llvm-svn: 114719
 2010-09-24 01:59:56 +00:00
Bob Wilson
ff8139baa0 Set alignment operand for NEON VST instructions. 
llvm-svn: 114709
 2010-09-23 23:42:37 +00:00
Bob Wilson
026ef4b7f8 Set alignment operand for NEON VLD instructions. 
llvm-svn: 114696
 2010-09-23 21:43:54 +00:00
Rafael Espindola
4b0d25a0db Correctly handle weak undefined symbols. Before we would get a invalid binding 
(2 == STB_WEAK | STB_GLOBAL).

llvm-svn: 114690
 2010-09-23 19:55:14 +00:00
Rafael Espindola
ce04ba0f70 Represent relocations against local symbols as relocations against the section 
they are in. Both ways should be equivalent, but gas produces relocations
against the section.

Roman wrote the patch, I added the test.

llvm-svn: 114667
 2010-09-23 17:25:18 +00:00
Bob Wilson
0fdee121f7 Fix llvm-extract so that it changes the linkage of all GlobalValues to 
"external" even when doing lazy bitcode loading.  This was broken because
a function that is not materialized fails the !isDeclaration() test.

llvm-svn: 114666
 2010-09-23 17:25:06 +00:00
Evan Cheng
1493b1799e Disable codegen prepare critical edge splitting. Machine instruction passes now 
break critical edges on demand.

llvm-svn: 114633
 2010-09-23 06:55:34 +00:00
Dan Gohman
007957687e Fix llvm-extract -delete's lazy loading to materialize the functions that 
will not be deleted, rather than the ones that will.

llvm-svn: 114614
 2010-09-23 00:33:13 +00:00
Owen Anderson
7d6373ea9d A select between a constant and zero, when fed by a bit test, can be efficiently 
lowered using a series of shifts.
Fixes <rdar://problem/8285015>.

llvm-svn: 114599
 2010-09-22 22:58:22 +00:00
Cameron Esfahani
662193bddc Fix PR8201: Update the code to call via X86::CALL64pcrel32 in the 64-bit case. 
llvm-svn: 114597
 2010-09-22 22:35:21 +00:00
Rafael Espindola
3cfff6e0c5 Avoid some Mach-O specific alignment being done on ELF. 
llvm-svn: 114594
 2010-09-22 22:27:05 +00:00
Rafael Espindola
a2d73f0a38 Correctly align bss. 
llvm-svn: 114556
 2010-09-22 17:43:04 +00:00