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14027 Commits

Author SHA1 Message Date
Owen Anderson b205c029a4 Improve encoding support for BLX with immediat eoperands, and fix a BLX decoding bug this uncovered. 
llvm-svn: 138675
 2011-08-26 23:32:08 +00:00
Owen Anderson 6c70e58041 Correct encoding of BL with immediate offset. 
llvm-svn: 138673
 2011-08-26 22:54:51 +00:00
Eli Friedman 5e5704277f Add support for generating CMPXCHG16B on x86-64 for the cmpxchg IR instruction. 
llvm-svn: 138660
 2011-08-26 21:21:21 +00:00
Bill Wendling ac88ab7cce Revert r138606 until LowerInvoke has been converted to the new EH scheme. 
llvm-svn: 138656
 2011-08-26 21:11:23 +00:00
Owen Anderson 16d33f36d5 invalid-LDR_PRE-arm.txt was already passing, but for the wrong reasons. We were failing to specify enough fixed bits of LDR_PRE/LDRB_PRE, resulting in decoding conflicts. Separate them into immediate vs. register versions, allowing us to specify the necessary fixed bits. This in turn results in the test being decoded properly, and being rejected as UNPREDICTABLE rather than a hard failure. 
llvm-svn: 138653
 2011-08-26 20:43:14 +00:00
Andrew Trick 28dc5abd05 valgrind: Always suppress tblgen leaks. 
I'll clean up the rest of the XFAIL: vg_leak lines if this works.

llvm-svn: 138652
 2011-08-26 20:41:20 +00:00
Bill Wendling eed1e8905a Don't sink landingpad instructions during ind-var simplification. 
llvm-svn: 138651
 2011-08-26 20:40:15 +00:00
Andrew Trick 07aeb629ec Use %% for literals in RUN lines. 
llvm-svn: 138647
 2011-08-26 20:09:48 +00:00
Owen Anderson a01bcbfc80 Support an extension of ARM asm syntax to allow immediate operands to ADR instructions. This is helpful for disassembler testing, and indeed exposed a disassembler bug that is also fixed here. 
llvm-svn: 138635
 2011-08-26 18:09:22 +00:00
Benjamin Kramer 6eb9666bb8 We don't care if TableGen leaks memory. 
llvm-svn: 138634
 2011-08-26 17:00:30 +00:00
Owen Anderson f3b6507e26 Add a testcase for r138625. 
llvm-svn: 138626
 2011-08-26 06:45:08 +00:00
Craig Topper c66d50d1a2 Fix disassembling of VCVTSD2SI 
llvm-svn: 138623
 2011-08-26 04:49:29 +00:00
Eli Friedman 452aae6202 Atomic load/store on ARM/Thumb. 
I don't really like the patterns, but I'm having trouble coming up with a
better way to handle them.

I plan on making other targets use the same legalization
ARM-without-memory-barriers is using... it's not especially efficient, but
if anyone cares, it's not that hard to fix for a given target if there's
some better lowering.

llvm-svn: 138621
 2011-08-26 02:59:24 +00:00
Benjamin Kramer fb212a6309 SimplifyCFG: If we have a PHI node that can evaluate to NULL and do a load or store to the address returned by the PHI node then we can consider this incoming value as dead and remove the edge pointing there, unless there are instructions that can affect control flow executed in between. 
In theory this could be extended to other instructions, eg. division by zero, but it's likely that it will "miscompile" some code because people depend on div by zero not trapping. NULL pointer dereference usually leads to a crash so we should be on the safe side.

This shrinks the size of a Release clang by 16k on x86_64.

llvm-svn: 138618
 2011-08-26 01:22:29 +00:00
Bill Wendling 62fe9e9aa6 Update to the new EH scheme. 
llvm-svn: 138606
 2011-08-25 23:48:37 +00:00
Bruno Cardoso Lopes 8347b86293 Add support for AVX 256-bit version of MOVDDUP! 
llvm-svn: 138588
 2011-08-25 21:40:37 +00:00
Owen Anderson 5e30972cff Port over additional encoding tests to decoding tests, and fix an operand ordering bug this exposed. 
llvm-svn: 138575
 2011-08-25 18:30:18 +00:00
Andrew Trick 6446bf780a ARM fix for missing implicit operands on ldmia_ret. 
rdar://10005094: miscompile of 176.gcc

llvm-svn: 138568
 2011-08-25 17:50:53 +00:00
Craig Topper 76e3e0b554 Give ATTR_VEX higher priority when generating the disassembler context table. Fixes disassembling of VEX instructions with 'pp'=00. Fixes subset of PR10678. 
llvm-svn: 138552
 2011-08-25 07:42:00 +00:00
Craig Topper e1541838f9 Add TB encoding to VEROALL, VZEROUPPER, and VCVTPS2PD to allow them to be disassembled. Fixes PR10723. 
llvm-svn: 138551
 2011-08-25 06:57:46 +00:00
Bill Wendling 3fb137f7ef LSR wants to split the landing pad's critical edge. Let it do it, but use the 
proper function to do it.

llvm-svn: 138550
 2011-08-25 05:55:40 +00:00
Bruno Cardoso Lopes 296256fb32 Add support for 256-bit versions of VSHUFPD and VSHUFPS. 
llvm-svn: 138546
 2011-08-25 02:58:26 +00:00
Bill Wendling ff2091737e Update tests to the newest EH syntax. 
llvm-svn: 138541
 2011-08-25 01:30:18 +00:00
Bill Wendling b37db20e40 Add feature test for the new exception handling stuff. 
llvm-svn: 138539
 2011-08-25 01:19:13 +00:00
Eli Friedman 9c73a57b20 Hook up 64-bit atomic load/store on x86-32. I plan to write more efficient implementations eventually. 
llvm-svn: 138505
 2011-08-24 22:33:28 +00:00
Evan Cheng eee864520c Some autoconf tests use module level inline asm to test compiler's handling of 
.cfi_startproc. e.g. libffi:

 $ cat confopt.c 
asm (".cfi_startproc\n\t.cfi_endproc");

int main () { return 0; }

Teach MC / dwarf emission to handle these cfi directives which essentially
create an empty frame.

rdar://10017184

llvm-svn: 138504
 2011-08-24 22:31:37 +00:00
Jim Grosbach b2a2c031b8 Update tests for 138501. 
llvm-svn: 138502
 2011-08-24 22:30:18 +00:00
Jim Grosbach 4b701af908 Thumb parsing and encoding for SUB (SP minu immediate). 
Fix FiXME in test file. Remove FIXME for SUB (SP minus register) since that
form is Thumb2 only.

llvm-svn: 138494
 2011-08-24 21:42:27 +00:00
Jim Grosbach 0a0b3071df Thumb parsing and encoding support for ADD SP instructions. 
Fix the test FIXME and add parsing support for the ADD (SP plus immediate)
and ADD (SP plus register) instruction forms.

llvm-svn: 138488
 2011-08-24 21:22:15 +00:00
Eli Friedman 5aabaaa367 Basic tests for atomic load and store on x86. 
llvm-svn: 138486
 2011-08-24 21:16:59 +00:00
Nadav Rotem 365af6f17b Implement Constant::isAllOnesValue(). Fix ConstantFolding to use the new api. 
llvm-svn: 138469
 2011-08-24 20:18:38 +00:00
Owen Anderson 16fd0d96f2 Port over more encoding tests to decoding tests. 
llvm-svn: 138441
 2011-08-24 17:08:34 +00:00
Richard Osborne 6e3c83eb1c Add Uses=[SP] to call instructions. This fixes a miscompilation with a 
variable sized alloca.

llvm-svn: 138433
 2011-08-24 13:32:43 +00:00
Craig Topper de92622aa5 Break 256-bit vector int add/sub/mul into two 128-bit operations to avoid costly scalarization. Fixes PR10711. 
llvm-svn: 138427
 2011-08-24 06:14:18 +00:00
Bruno Cardoso Lopes 9e9f2ce32d Fix a nasty bug where a v4i64 was being wrong emitted with 32-bit 
permutations. Also tidy up some patterns and make them close to their
instruction definition!

llvm-svn: 138392
 2011-08-23 22:06:37 +00:00
Eric Christopher 7bc78f692c Revert "Address Duncan's CR request:" 
This reverts commit 20a05be15ea5271ab6185b83200fa88263362400. (svn rev 138340)

Conflicts:

	test/Transforms/InstCombine/bitcast.ll

llvm-svn: 138366
 2011-08-23 20:11:10 +00:00
Jim Grosbach 37563cd545 Thumb parsing and encoding for WFE, WFI and YIELD. 
llvm-svn: 138364
 2011-08-23 20:02:30 +00:00
Jim Grosbach ad9e8655ee Thumb parsing and encoding for UXTB and UXTH. 
llvm-svn: 138363
 2011-08-23 19:59:32 +00:00
Jim Grosbach 5e4ea175f6 Thumb parsing and encoding for TST. 
llvm-svn: 138362
 2011-08-23 19:53:17 +00:00
Jim Grosbach bb07e73e0d Thumb parsing and encoding for SXTB and SXTH. 
llvm-svn: 138361
 2011-08-23 19:51:42 +00:00
Jim Grosbach 5cc338da67 Thumb parsing and encoding for SVC. 
llvm-svn: 138360
 2011-08-23 19:49:10 +00:00
Jim Grosbach d88404fbaa Thumb parsing and encoding for SUB. 
llvm-svn: 138359
 2011-08-23 19:45:45 +00:00
Nick Lewycky 4c8ff77f1b PerformSubCombine to work on integers larger than i128. Fixes a crasher. 
llvm-svn: 138354
 2011-08-23 19:01:24 +00:00
Jim Grosbach f1ca6a6df6 Thumb parsing and encoding for STRH. 
llvm-svn: 138352
 2011-08-23 18:56:20 +00:00
Jim Grosbach 635aa69a91 Thumb parsing and encoding for STRB. 
llvm-svn: 138349
 2011-08-23 18:43:06 +00:00
Jim Grosbach 505be75900 Thumb parsing and encoding for tSTRspi. 
llvm-svn: 138348
 2011-08-23 18:39:41 +00:00
Jim Grosbach 6e546e0725 Thumb parsing and encoding for STR. 
Not including tSTRspi.

llvm-svn: 138347
 2011-08-23 18:33:38 +00:00
Jim Grosbach d80d169a04 Thumb parsing and encoding for STM. 
llvm-svn: 138345
 2011-08-23 18:15:37 +00:00
Nadav Rotem 7d3effa389 Fix a typo in the test from the previous commit. 
llvm-svn: 138342
 2011-08-23 17:56:54 +00:00
Owen Anderson 924bcfc92f Fix decoding of Thumb2 prefetch instructions, which account for all the remaining Thumb2 decoding failures found by randomized testing so far. 
llvm-svn: 138341
 2011-08-23 17:51:38 +00:00