Commit Graph

75263 Commits

Author SHA1 Message Date
Bill Wendling 07efd6f1e0 When inserting new instructions, use getFirstInsertionPt instead of
getFirstNonPHI so that it will skip over the landingpad instructions as well.

llvm-svn: 138537
2011-08-25 01:08:34 +00:00
Evan Cheng f066b2fe99 Add a command line option to disable global merge pass.
llvm-svn: 138536
2011-08-25 01:00:36 +00:00
Evan Cheng 3ca20e64ac Remove a out-of-place comment.
llvm-svn: 138534
2011-08-25 00:54:42 +00:00
Bruno Cardoso Lopes 50d74211df Create a section for non-instructions patterns in the beginning of the
file, and move more code around!

llvm-svn: 138521
2011-08-24 23:18:11 +00:00
Bruno Cardoso Lopes 2fb51d38e6 Move code around!
llvm-svn: 138520
2011-08-24 23:18:09 +00:00
Bruno Cardoso Lopes fb702fe8d6 Organize UNPCK* patterns, also add remaining for AVX.
llvm-svn: 138519
2011-08-24 23:18:06 +00:00
Bruno Cardoso Lopes 9ade17b7f2 Move remaining MOVDDUP patterns close to MOVDDUP defintion and duplicate
the missing ones for AVX.

llvm-svn: 138518
2011-08-24 23:18:04 +00:00
Bruno Cardoso Lopes c1e1e7ab97 Organize and tidy up MOVDDUP section. Also update comments!
llvm-svn: 138517
2011-08-24 23:18:02 +00:00
Bruno Cardoso Lopes 813891a215 Move MOVHLPS patterns close to MOVHLPS definition, and duplicate the
pattern for 128-bit AVX mode.

llvm-svn: 138516
2011-08-24 23:17:59 +00:00
Bruno Cardoso Lopes 9566a66a7c Move all PSHUF* patterns close to the PSHUF* definitions. Also be
explicit about which subtarget they refer to, and add AVX versions of
the ones we currently don't. Remove old and now wrong comments!

llvm-svn: 138515
2011-08-24 23:17:57 +00:00
Bruno Cardoso Lopes 2953d7b320 Move all SHUFP* patterns close to the SHUFP* definitions. Also be
explicit about which subtarget they refer to, and add AVX versions of
the ones we currently don't. Make the mask check more strict, to be
clear it won't be used to match to 256-bit versions!

llvm-svn: 138514
2011-08-24 23:17:55 +00:00
Owen Anderson 37612a3de3 Perform more thorough checking of t2IT mask parameters, which fixes all remaining crashers when disassembling the entire 16-bit instruction space.
llvm-svn: 138507
2011-08-24 22:40:22 +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 21a60b6f90 ARM asm backend initialize isThumbMode based on target triple.
llvm-svn: 138501
2011-08-24 22:27:35 +00:00
Jim Grosbach 838ed3af46 Thumb .n mnemonic qualifiers can be ignored for now.
We'll need to pay attention to them when we start getting more serious about
the details of parsing thumb2 assembly.

llvm-svn: 138500
2011-08-24 22:19:48 +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
Owen Anderson 216cfaa808 Be careful not to walk off the end of the operand info list while updating VFP predicates.
llvm-svn: 138492
2011-08-24 21:35:46 +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 38cd821dc4 Fix whitespace.
llvm-svn: 138487
2011-08-24 21:17:30 +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
Bill Wendling 86c5cbe613 Skip the landingpad instruction when determining the insertion point.
llvm-svn: 138481
2011-08-24 21:06:46 +00:00
Eli Friedman 342e8df0e0 Basic x86 code generation for atomic load and store instructions.
llvm-svn: 138478
2011-08-24 20:50:09 +00:00
Bill Wendling 0902a68f69 Use getFirstInsertionPt instead of getFirstNonPHI so that it skips to the proper
insertion place.

llvm-svn: 138473
2011-08-24 20:28:43 +00:00
Eli Friedman 0cb3b56de5 Some minor updates to atomic acquire/release docs in LangRef.
llvm-svn: 138472
2011-08-24 20:28:39 +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
Jim Grosbach af2f827a2c When printing Thumb1 NOP ('mov r8, r8'), make sure to print the predicate.
rdar://10015134

llvm-svn: 138467
2011-08-24 20:06:14 +00:00
Bruno Cardoso Lopes ce02840633 Mark VZEROALL as clobbering all YMM registers
llvm-svn: 138461
2011-08-24 18:48:33 +00:00
Jim Grosbach 6ccd79f4d5 Add missing explicit writeback operand to tSTMIA_UPD.
rdar://10014745

llvm-svn: 138457
2011-08-24 18:19:42 +00:00
Evan Cheng 2bb4035707 Move TargetRegistry and TargetSelect from Target to Support where they belong.
These are strictly utilities for registering targets and components.

llvm-svn: 138450
2011-08-24 18:08:43 +00:00
Rafael Espindola d3e65e702f Fix a crashing bug in SplitBlock when it is called on a block with no
dominator information even though dominators were previously computed.

Patch by Nick Sumner.

llvm-svn: 138449
2011-08-24 18:07:01 +00:00
Jim Grosbach a281f2d07d Thumb add SP assembly syntax fix.
llvm-svn: 138448
2011-08-24 18:04:27 +00:00
Jim Grosbach 1b8457a84c Thumb1 ADD/SUB SP instructions are predicable in Thumb2 mode.
Add the predicate operand to the instructions. Update the back end
accordingly where the instructions are used. Restrict the SP operands
to actually only be SP, as otherwise these break assembly parsing for the
normal instruction variants.

llvm-svn: 138445
2011-08-24 17:46:13 +00:00
Owen Anderson 523004145e Be stricter in enforcing IT instruction predicate values, so that we don't end up trying to print out an illegal predicate.
llvm-svn: 138443
2011-08-24 17:21:43 +00:00
Owen Anderson 16fd0d96f2 Port over more encoding tests to decoding tests.
llvm-svn: 138441
2011-08-24 17:08:34 +00:00
Jim Grosbach dee9e8a37c Tidy up. Trailing whitespace.
llvm-svn: 138437
2011-08-24 16:44:17 +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
Bill Wendling f4ee0c0db2 Add the sentinal "no handle" value to the ResumeInst.
A value of -1 at a call site tells the personality function that this call isn't
handled by the current function. Since the ResumeInsts are converted to calls to
_Unwind_SjLj_Resume, add a (volatile) store of -1 to its 'call site'.

llvm-svn: 138416
2011-08-24 00:00:23 +00:00
Bill Wendling 2d4f0bea57 Don't replace *all* uses with the new stuff.
This is not necessarily the first or dominating use of the EH values. The IR
breaks if it's not. So replace the specific value in the instruction with the
new value.

llvm-svn: 138406
2011-08-23 22:55:03 +00:00
Bill Wendling 01a325a40e Look at the end of the entry block for an invoke.
The invoke could be at the end of the entry block. If it's the only one, then we
won't process all of the landingpad instructions correctly. This code is
currently ugly, but should be made much nicer once the new EH switch is thrown.

llvm-svn: 138397
2011-08-23 22:20:16 +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
Bill Wendling 4eb0433672 A landingpad instruction is neither folded nor dead.
llvm-svn: 138387
2011-08-23 21:33:05 +00:00
Jim Grosbach 51b554247d Move ARM frame-unwinding EHABI handling a touch earlier.
It should go before AsmPrinter MC pseudo expansion since it's based on
MachineInstr, not MCInst. Otherwise any frame related pseudo instructions
may be missed.

llvm-svn: 138386
2011-08-23 21:32:34 +00:00
Jim Grosbach 50b0f6669c [SU]XT[BH] are only available on ARMv6 and up.
llvm-svn: 138373
2011-08-23 20:53:08 +00:00
Nate Begeman 43c322b5b2 Add some useful accessors to c++ api that appear to be missing from the c api
llvm-svn: 138371
2011-08-23 20:27:46 +00:00
Evan Cheng 4d6c9d711d Some refactoring so TargetRegistry.h no longer has to include any files
from MC.

llvm-svn: 138367
2011-08-23 20:15:21 +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
Evan Cheng 6b477b985b Fix 80 col violations.
llvm-svn: 138356
2011-08-23 19:17:21 +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
Caitlin Sadowski ffa5a909b4 Thread safety: Adding in an option for variadic expr* array of arguments
llvm-svn: 138351
2011-08-23 18:49:23 +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
Rafael Espindola f9a688176f Fix an example in the documentation.
Patch by Sanjoy Das!

llvm-svn: 138346
2011-08-23 18:26:56 +00:00
Jim Grosbach d80d169a04 Thumb parsing and encoding for STM.
llvm-svn: 138345
2011-08-23 18:15:37 +00:00
Jim Grosbach 169b2be611 Factor low reg checking into a helper function.
llvm-svn: 138344
2011-08-23 18:13:04 +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
Nadav Rotem c78e6607b5 Address Duncan's CR request:
1. Cleanup the tests in ConstantFolding.cpp
2. Implement isAllOnes for Constant, ConstantFP, ConstantVector

llvm-svn: 138340
2011-08-23 17:48:43 +00:00
Owen Anderson 9b7bd15d0b Fix Thumb2 decoding of CPS instructions to mirror ARM decoding of the same instructions.
llvm-svn: 138339
2011-08-23 17:45:18 +00:00
Jim Grosbach e364ad540a Clean up Thumb load/store multiple definitions.
There is no non-writeback store multiple instruction in Thumb1, so
don't define one. As a result load multiple is the only instantiation of
the multiclass, so refactor that away entirely.

llvm-svn: 138338
2011-08-23 17:41:15 +00:00
Owen Anderson 041dba6dec Fix two more instances of mis-matched operand names breaking disassembly. Found by randomized testing.
llvm-svn: 138337
2011-08-23 17:37:32 +00:00
Owen Anderson dcea63236e Port more assemble tests over to disassembly tests.
llvm-svn: 138336
2011-08-23 17:26:35 +00:00
Ivan Krasin 771ef8c66a This patch adds support of le32 pseudo-cpu that stands for generic
32-bit little-endian CPU. Used by PNaCl and Emscripten.

llvm-svn: 138335
2011-08-23 16:59:00 +00:00
Eric Christopher c50ea3beaf Fix fpimmm->fpimm typo.
Patch by Micah Villmow!

llvm-svn: 138330
2011-08-23 15:42:35 +00:00
Ivan Krasin 05e609331c Update config.sub, config.guess and configure.
The motivation to do that:

1. Now, llvm would use the stock config.sub. Before that we had an
uncommitted FreeBSD-related patch. Now, it has been upstreamed and
comes back. It means that it would be easier to update these files in
the next time (less magic knowledge)

2. Fix a typo for pseudo-CPUs: 32e[lb] -> [lb]e32, 64e[lb]->[lb]64.
One of these CPUs is used for PNaCl and it was not really convenient
to have a CPU that starts with a digit.

llvm-svn: 138323
2011-08-23 06:43:49 +00:00
Craig Topper 6612e35b0d Add support for breaking 256-bit v16i16 and v32i8 VSETCC into two 128-bit ones, avoiding sclarization. Add vex form of pcmpeqq and pcmpgtq. Fixes more cases for PR10712.
llvm-svn: 138321
2011-08-23 04:36:33 +00:00
NAKAMURA Takumi fd6cb64c48 lib/Support/Windows/Windows.h: Update required IE ver. 0x0600 should be enough for Windows XP.
llvm-svn: 138319
2011-08-23 03:49:11 +00:00
Bruno Cardoso Lopes 2a3ffb5d97 Introduce a pass to insert vzeroupper instructions to avoid AVX to
SSE transition penalty. The pass is enabled through the "x86-use-vzeroupper"
llc command line option. This is only the first step (very naive and
conservative one) to sketch out the idea, but proper DFA is coming next
to allow smarter decisions. Comments and ideas now and in further commits
will be very appreciated.

llvm-svn: 138317
2011-08-23 01:14:17 +00:00
Jim Grosbach cc9d792ec1 Thumb parsing and encoding for SETEND.
llvm-svn: 138312
2011-08-22 23:58:02 +00:00
Jim Grosbach 3636be3c8f Thumb parsing and encoding for SBC.
llvm-svn: 138311
2011-08-22 23:55:58 +00:00
Jim Grosbach c3c32d9e09 Thumb parsing and encoding for RSB.
llvm-svn: 138308
2011-08-22 23:47:13 +00:00
Owen Anderson eb1367b2b8 Reject invalid imod values in t2CPS instructions.
llvm-svn: 138306
2011-08-22 23:44:04 +00:00
Benjamin Kramer 08b5c19a4d Add an MCInstrAnalysis version of isCall.
llvm-svn: 138305
2011-08-22 23:41:41 +00:00
Jim Grosbach 73661b8a37 Thumb parsing and encoding for ROR.
llvm-svn: 138304
2011-08-22 23:40:51 +00:00
Jim Grosbach a9d88df987 Thumb parsing and encoding for REV/REV16/REVSH.
llvm-svn: 138303
2011-08-22 23:39:25 +00:00
Bill Wendling f0d2dfde4f Split the landing pad's edge. Then for all uses of a landingpad instruction's
value, we insert a load of the exception object and selector object from memory,
which is where it actually resides. If it's used by a PHI node, we follow that
to where it is being used. Eventually, all landingpad instructions should have
no uses. Any PHI nodes that were associated with those landingpads should be
removed.

llvm-svn: 138302
2011-08-22 23:38:40 +00:00
Owen Anderson 1346d79b4b t2SMLAD is a four-register instruction, not a three-register one.
llvm-svn: 138301
2011-08-22 23:31:45 +00:00
Owen Anderson f94b7b7d57 Correct operand naming of t2USAT16 to allow proper decoding.
llvm-svn: 138300
2011-08-22 23:27:47 +00:00
Jim Grosbach bfeb4f78af Revert r138278 now that r138289 has fixed the root issue.
llvm-svn: 138299
2011-08-22 23:25:48 +00:00
Owen Anderson 5e9989a920 Match operand naming to allow correct decoding of t2LDRSH_POST.
llvm-svn: 138298
2011-08-22 23:22:05 +00:00
NAKAMURA Takumi 2b462b54b9 docs/ReleaseNotes.html: Mention that Windows 2000 will not be supported any more.
llvm-svn: 138297
2011-08-22 23:22:05 +00:00
Jim Grosbach 38c59fcb08 Improve error checking for tPUSH and tPOP register lists.
llvm-svn: 138295
2011-08-22 23:17:34 +00:00
Owen Anderson 2844a81079 Match operand names to provide correct decoding for Thumb2 SMULL.
llvm-svn: 138294
2011-08-22 23:16:48 +00:00
Jim Grosbach 096423b6be Tidy up. Trailing whitespace.
llvm-svn: 138293
2011-08-22 23:13:54 +00:00
Owen Anderson a743409ec8 Provide a correct decoder hook for Thumb2 shifted registers. Found by randomized testing.
llvm-svn: 138292
2011-08-22 23:10:16 +00:00
Ivan Krasin b296790bb6 Add NativeClient support to Triple::ParseOS.
llvm-svn: 138291
2011-08-22 23:08:53 +00:00
Jim Grosbach 40da063178 Thumb parsing and encoding for PUSH.
llvm-svn: 138290
2011-08-22 23:05:11 +00:00
Evan Cheng 6aa2744bed Follow up to Jim's r138278. This fixes commuteInstruction so it handles two-address instructions correctly. I'll let Jim add a test case. :-)
llvm-svn: 138289
2011-08-22 23:04:56 +00:00
Jim Grosbach 5507203262 Fix think-o.
llvm-svn: 138288
2011-08-22 23:04:26 +00:00
Jim Grosbach 139acd21e6 Thumb assemmbly parsing diagnostic improvements for LDM.
llvm-svn: 138287
2011-08-22 23:01:07 +00:00