Bruno Cardoso Lopes [Thu, 8 Sep 2011 21:05:43 +0000 (21:05 +0000)]
Reapply testcase from r139309!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139318
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Eli Friedman [Thu, 8 Sep 2011 21:00:31 +0000 (21:00 +0000)]
Make sure to handle the case where emitPredicateMatch returns false. Noticed by inspection.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139317
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Kevin Enderby [Thu, 8 Sep 2011 20:53:44 +0000 (20:53 +0000)]
Fix a Darwin x86_64 special case of a jmp to a temporary symbol from an atom
without a base symbol that must not have a relocation entry.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139316
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Benjamin Kramer [Thu, 8 Sep 2011 20:52:17 +0000 (20:52 +0000)]
Add support for relocations to ObjectFile.
Patch by Danil Malyshev!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139314
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Bruno Cardoso Lopes [Thu, 8 Sep 2011 18:35:57 +0000 (18:35 +0000)]
* Combines Alignment, AuxInfo, and TB_NOT_REVERSABLE flag into a
single field (Flags), which is a bitwise OR of items from the TB_*
enum. This makes it easier to add new information in the future.
* Gives every static array an equivalent layout: { RegOp, MemOp, Flags }
* Adds a helper function, AddTableEntry, to avoid duplication of the
insertion code.
* Renames TB_NOT_REVERSABLE to TB_NO_REVERSE.
* Adds TB_NO_FORWARD, which is analogous to TB_NO_REVERSE, except that
it prevents addition of the Reg->Mem entry. (This is going to be used
by Native Client, in the next CL).
Patch by David Meyer
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139311
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Bruno Cardoso Lopes [Thu, 8 Sep 2011 18:32:36 +0000 (18:32 +0000)]
Remove this crashing test, until I figure out what's going wrong here
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139309
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Bruno Cardoso Lopes [Thu, 8 Sep 2011 18:05:08 +0000 (18:05 +0000)]
Add AVX versions of blend vector operations and fix some issues noticed
in Nadav's r139285 and r139287 commits.
1) Rename vsel.ll to a more descriptive name
2) Change the order of BLEND operands to "Op1, Op2, Cond", this is
necessary because PBLENDVB is already used in different places with
this order, and it was being emitted in the wrong way for vselect
3) Add AVX patterns and tests for the same SSE41 instructions
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139305
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Bruno Cardoso Lopes [Thu, 8 Sep 2011 18:05:02 +0000 (18:05 +0000)]
Fix PR10844: Add patterns to cover non foldable versions of X86vzmovl.
Triggered using llc -O0. Also fix some SET0PS patterns to their AVX
forms and test it on the testcase.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139304
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Caitlin Sadowski [Thu, 8 Sep 2011 17:40:49 +0000 (17:40 +0000)]
Added LateParsed property to TableGen attributes.
This patch was written by DeLesley Hutchins.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139300
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Jim Grosbach [Thu, 8 Sep 2011 16:49:36 +0000 (16:49 +0000)]
Add tests for Thumb2 LDRB indexed addressing w/ writeback.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139292
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Nadav Rotem [Thu, 8 Sep 2011 08:43:23 +0000 (08:43 +0000)]
This test is already covered by llvm/trunk/test/CodeGen/X86/vsel.ll
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139288
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Nadav Rotem [Thu, 8 Sep 2011 08:31:31 +0000 (08:31 +0000)]
add a testcase for the previous patch
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139287
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James Molloy [Thu, 8 Sep 2011 08:12:01 +0000 (08:12 +0000)]
Fix warning on windows; use of comparison with bool argument.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139286
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Nadav Rotem [Thu, 8 Sep 2011 08:11:19 +0000 (08:11 +0000)]
Add X86-SSE4 codegen support for vector-select.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139285
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Ivan Krasin [Thu, 8 Sep 2011 07:38:25 +0000 (07:38 +0000)]
lto/addAsmGlobalSymbols: fast path when no module level asm is present.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139284
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Ivan Krasin [Thu, 8 Sep 2011 07:36:39 +0000 (07:36 +0000)]
lto/addAsmGlobalSymbols: fail fracefully when the target does not define AsmParser.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139283
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David Blaikie [Thu, 8 Sep 2011 05:32:49 +0000 (05:32 +0000)]
Adding myself to test my new commit powers.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139280
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Andrew Trick [Thu, 8 Sep 2011 05:25:49 +0000 (05:25 +0000)]
Fix a use of freed string contents.
Speculatively try to fix our windows testers with a patch I found on the internet.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139279
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Andrew Trick [Thu, 8 Sep 2011 05:23:14 +0000 (05:23 +0000)]
whitespace
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139278
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Eli Friedman [Thu, 8 Sep 2011 02:37:07 +0000 (02:37 +0000)]
A couple minor corrections to r139276.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139277
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Eli Friedman [Thu, 8 Sep 2011 02:23:31 +0000 (02:23 +0000)]
Fix the logic in BasicAliasAnalysis::aliasGEP for comparing GEP's with variable differences so that it actually does something sane. Fixes PR10881.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139276
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Jim Grosbach [Thu, 8 Sep 2011 01:01:32 +0000 (01:01 +0000)]
Thumb2 assembly parsing and encoding for LDR post-indexed.
More cleanup of the general indexed addressing T2 instructions. Still more to
do, especially for stores.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139272
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Jim Grosbach [Thu, 8 Sep 2011 00:39:19 +0000 (00:39 +0000)]
Thumb2 assembly parsing and encoding for LDR pre-indexed w/ writeback.
Adjust encoding of writeback load/store instructions to better reflect the
way the operand types are represented.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139270
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Owen Anderson [Thu, 8 Sep 2011 00:11:18 +0000 (00:11 +0000)]
Remove the "common" set of instructions shared between ARM and Thumb2 modes. This is no longer needed now that Thumb2 has its own copy of the STC/LDC instructions.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139268
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Jim Grosbach [Wed, 7 Sep 2011 23:39:14 +0000 (23:39 +0000)]
Thumb2 assembly parsing and encoding for LDRBT.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139267
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Jim Grosbach [Wed, 7 Sep 2011 23:17:00 +0000 (23:17 +0000)]
Thumb2 assembly parsing and encoding for LDRB(register).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139266
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Jim Grosbach [Wed, 7 Sep 2011 23:10:15 +0000 (23:10 +0000)]
Thumb2 assembly parsing and encoding for LDR(register).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139264
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Benjamin Kramer [Wed, 7 Sep 2011 22:49:26 +0000 (22:49 +0000)]
Add two notes for correlated-expression optimizations.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139263
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Jakob Stoklund Olesen [Wed, 7 Sep 2011 21:43:52 +0000 (21:43 +0000)]
Revert r139247 "Cache intermediate results during traceSiblingValue."
It broke the self host and clang-x86_64-darwin10-RA.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139259
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Jim Grosbach [Wed, 7 Sep 2011 21:41:25 +0000 (21:41 +0000)]
Thumb2 assembly parsing and encoding for LDRB(immediate).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139258
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Jim Grosbach [Wed, 7 Sep 2011 21:33:16 +0000 (21:33 +0000)]
Thumb2 assembly parsing and encoding for LDR(literal).
Need branch relocation support to distinguish this encoding from the
16-bit Thumb1 encoding w/o the explicit .w suffix. That comes later, though.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139257
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Owen Anderson [Wed, 7 Sep 2011 21:10:42 +0000 (21:10 +0000)]
Create Thumb2 versions of STC/LDC, and reenable the relevant tests.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139256
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Jim Grosbach [Wed, 7 Sep 2011 21:06:46 +0000 (21:06 +0000)]
Add tests for Thumb2 LDR(immediate) from r139254.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139255
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Jim Grosbach [Wed, 7 Sep 2011 20:58:57 +0000 (20:58 +0000)]
Thumb2 parsing and encoding for LDR(immediate).
The immediate offset of the non-writeback i8 form (encoding T4) allows
negative offsets only. The positive offset form of the encoding is the
LDRT instruction. Immediate offsets in the range [0,255] use encoding T3
instead.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139254
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Jim Grosbach [Wed, 7 Sep 2011 19:57:53 +0000 (19:57 +0000)]
Thumb2 parsing and encoding for LDMDB.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139251
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James Molloy [Wed, 7 Sep 2011 19:42:28 +0000 (19:42 +0000)]
Second of a three-patch series aiming to fix MSR/MRS on Cortex-M. This adds predicate checking to the Disassembler.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139250
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Jakob Stoklund Olesen [Wed, 7 Sep 2011 19:07:31 +0000 (19:07 +0000)]
Cache intermediate results during traceSiblingValue.
In some cases such as interpreters using indirectbr, the CFG can be very
complicated, and live range splitting may be forced to insert a large
number of phi-defs. When that happens, traceSiblingValue can spend a
lot of time zipping around in the CFG looking for defs and reloads.
This patch causes more information to be cached in SibValues, and the
cached values are used to terminate searches early. This speeds up
spilling by 20x in one interpreter test case. For more typical code,
this is just a 10% speedup of spilling.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139247
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Eli Friedman [Wed, 7 Sep 2011 18:48:32 +0000 (18:48 +0000)]
Fix atomic load and store on x86 to pass -verify-machineinstrs (and possibly fix some subtle bugs involving passes which check mayStore()).
This isn't exactly ideal, but it is good enough for the moment.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139245
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Jim Grosbach [Wed, 7 Sep 2011 18:40:06 +0000 (18:40 +0000)]
Update test for 139243
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139244
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Jim Grosbach [Wed, 7 Sep 2011 18:39:47 +0000 (18:39 +0000)]
Thumb2 ldm/stm 'db' mnemonics don't have a '.w' suffix.
There is no 16-bit wide encoding, so the .w suffix isn't needed (indeed, isn't
documented as allowed). Also add the missing '!' token on the _UPD
variant.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139243
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Jim Grosbach [Wed, 7 Sep 2011 18:05:34 +0000 (18:05 +0000)]
Thumb2 parsing and encoding for LDMIA.
Choose 32-bit vs. 16-bit encoding when there's no .w suffix in post-processing
as match classes are insufficient to handle the context-sensitiveness of
the writeback operand's legality for the 16-bit encodings.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139242
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Owen Anderson [Wed, 7 Sep 2011 17:55:19 +0000 (17:55 +0000)]
Port more assembler tests over to disassembler tests, and fix a minor logic error that exposed.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139240
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James Molloy [Wed, 7 Sep 2011 17:24:38 +0000 (17:24 +0000)]
Refactor instprinter and mcdisassembler to take a SubtargetInfo. Add -mattr= handling to llvm-mc. Reviewed by Owen Anderson.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139237
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Duncan Sands [Wed, 7 Sep 2011 16:44:14 +0000 (16:44 +0000)]
When inlining exception handling code into another function, ensure that
duplicate tests are eliminated (for example if the two functions both have
a catch clause catching the same type, ensure the redundant one is removed).
Note that it would probably be safe to say that eh.typeid.for is 'const',
but since two calls to it with the same argument can give different results
(but only if the calls are in different functions), it seems more correct to
mark it only 'pure'; this doesn't get in the way of the optimization.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139236
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Jim Grosbach [Wed, 7 Sep 2011 16:22:42 +0000 (16:22 +0000)]
Thumb2 use 'ldm' as default mnemonic.
Handle explicit 'ia' suffix via a MnemonicAlias (pre-existing).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139234
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Rafael Espindola [Wed, 7 Sep 2011 16:10:57 +0000 (16:10 +0000)]
Detect attempt to use segmented stacks on non ELF systems and error
(not assert) early.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139233
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Jim Grosbach [Wed, 7 Sep 2011 16:06:04 +0000 (16:06 +0000)]
Better diagnostic location information for mnemonic suffices.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139232
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Duncan Sands [Wed, 7 Sep 2011 10:05:14 +0000 (10:05 +0000)]
Another forgotten trampoline testcase.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139230
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Duncan Sands [Wed, 7 Sep 2011 09:21:38 +0000 (09:21 +0000)]
Forgot to add this trampoline testcase.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139229
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Eli Friedman [Wed, 7 Sep 2011 02:23:42 +0000 (02:23 +0000)]
Relax the MemOperands on atomics a bit. Fixes -verify-machineinstrs failures for atomic laod/store on ARM.
(The fix for the related failures on x86 is going to be nastier because we actually need Acquire memoperands attached to the atomic load instrs, etc.)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139221
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Joerg Sonnenberger [Wed, 7 Sep 2011 02:12:03 +0000 (02:12 +0000)]
Dependency should be on the output file name, not the dependency file
name.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139220
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Devang Patel [Wed, 7 Sep 2011 00:07:58 +0000 (00:07 +0000)]
While sinking machine instructions, sink matching DBG_VALUEs also otherwise live debug variable pass will drop DBG_VALUEs on the floor.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139208
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Bill Wendling [Tue, 6 Sep 2011 23:47:14 +0000 (23:47 +0000)]
Reenable compact unwind by default. However, also emit the old version of unwind
information for older linkers.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139206
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Owen Anderson [Tue, 6 Sep 2011 23:43:26 +0000 (23:43 +0000)]
memset_pattern16 uses a 16 BYTE pattern, not a 16 BIT pattern. Add comments to that effect.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139205
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Owen Anderson [Tue, 6 Sep 2011 23:33:25 +0000 (23:33 +0000)]
Teach BasicAA about the aliasing properties of memset_pattern16.
Fixes PR10872 and <rdar://problem/
10065079>.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139204
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Jim Grosbach [Tue, 6 Sep 2011 23:09:19 +0000 (23:09 +0000)]
ISB is HasDB, not just HasV7.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139202
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Jim Grosbach [Tue, 6 Sep 2011 22:53:27 +0000 (22:53 +0000)]
Thumb2 parsing and encoding for ISB.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139200
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Jim Grosbach [Tue, 6 Sep 2011 22:44:50 +0000 (22:44 +0000)]
Thumb2 parsing and encoding for EOR.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139199
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Jim Grosbach [Tue, 6 Sep 2011 22:19:40 +0000 (22:19 +0000)]
Thumb2 parsing and encoding for DSB.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139194
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Jim Grosbach [Tue, 6 Sep 2011 22:14:58 +0000 (22:14 +0000)]
Thumb2 parsing and encoding for DMB.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139193
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Nick Lewycky [Tue, 6 Sep 2011 22:08:18 +0000 (22:08 +0000)]
Disable these tests harder. They're XFAIL'd, but that means they still run, and
these tests all infinitely recurse, bringing my system down into swapping hell.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139192
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Jim Grosbach [Tue, 6 Sep 2011 22:06:40 +0000 (22:06 +0000)]
Thumb2 parsing and encoding for DBG.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139191
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Jim Grosbach [Tue, 6 Sep 2011 21:44:58 +0000 (21:44 +0000)]
Thumb2 parsing and encoding for CMN and CMP.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139188
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Nick Lewycky [Tue, 6 Sep 2011 21:42:18 +0000 (21:42 +0000)]
This transform only handles two-operand AddRec's. Prevent it from trying to
handle anything more complex. Fixes PR10383 again!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139186
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Eli Friedman [Tue, 6 Sep 2011 20:53:37 +0000 (20:53 +0000)]
Add mayLoad/mayStore markings to ARM 64-bit atomic pseudo-instructions.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139179
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Jim Grosbach [Tue, 6 Sep 2011 20:44:17 +0000 (20:44 +0000)]
Thumb2 parsing and encoding for CLZ.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139177
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Jim Grosbach [Tue, 6 Sep 2011 20:27:04 +0000 (20:27 +0000)]
Thumb2 parsing and encoding for CLREX.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139172
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Owen Anderson [Tue, 6 Sep 2011 20:26:34 +0000 (20:26 +0000)]
Port more encoding tests over to Thumb2 decoding tests.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139171
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Andrew Trick [Tue, 6 Sep 2011 20:20:38 +0000 (20:20 +0000)]
Add -verify-indvars for imperfect SCEV trip count verification after indvars.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139169
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Jim Grosbach [Tue, 6 Sep 2011 20:12:23 +0000 (20:12 +0000)]
Thumb2 parsing and encoding for CDP/CDP2.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139168
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Rafael Espindola [Tue, 6 Sep 2011 19:29:31 +0000 (19:29 +0000)]
Fix comment. Noticed by Duncan.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139161
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Duncan Sands [Tue, 6 Sep 2011 19:07:46 +0000 (19:07 +0000)]
Add codegen support for vector select (in the IR this means a select
with a vector condition); such selects become VSELECT codegen nodes.
This patch also removes VSETCC codegen nodes, unifying them with SETCC
nodes (codegen was actually often using SETCC for vector SETCC already).
This ensures that various DAG combiner optimizations kick in for vector
comparisons. Passes dragonegg bootstrap with no testsuite regressions
(nightly testsuite as well as "make check-all"). Patch mostly by
Nadav Rotem.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139159
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Evan Cheng [Tue, 6 Sep 2011 18:52:20 +0000 (18:52 +0000)]
Fix fall outs from my recent change on how carry bit is modeled during isel.
Now the 'S' instructions, e.g. ADDS, treat S bit as optional operand as well.
Also fix isel hook to correctly set the optional operand.
rdar://
10073745
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139157
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Devang Patel [Tue, 6 Sep 2011 18:49:53 +0000 (18:49 +0000)]
Use IRBuilder.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139156
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Jim Grosbach [Tue, 6 Sep 2011 18:46:23 +0000 (18:46 +0000)]
ARM .code directive should always go to the streamer.
Even if there's no mode switch performed, the .code directive should still
be sent to the output streamer. Otherwise, for example, an output asm stream
is not equivalent to the input stream which generated it (a dependency on
the input target triple arm vs. thumb is introduced which was not originally
there).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139155
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Rafael Espindola [Tue, 6 Sep 2011 18:43:08 +0000 (18:43 +0000)]
Fix style issues and typos found by Duncan.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139154
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Bill Wendling [Tue, 6 Sep 2011 18:37:11 +0000 (18:37 +0000)]
As a first step, emit both the compact unwind and CIE/FDEs for a function.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139152
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Owen Anderson [Tue, 6 Sep 2011 18:14:09 +0000 (18:14 +0000)]
Try again at r138809 (make DSE more aggressive in removing dead stores at the end of a function), now with less deleting stores before memcpy's.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139150
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Jakob Stoklund Olesen [Tue, 6 Sep 2011 17:40:35 +0000 (17:40 +0000)]
Atomic pseudos don't use (as in read) CPSR. They clobber it.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139148
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Devang Patel [Tue, 6 Sep 2011 17:40:08 +0000 (17:40 +0000)]
Now, named mdnode llvm.dbg.cu keeps track of all compile units in a module. Update DebugInfoFinder to collect compile units from llvm.dbg.cu.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139147
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Duncan Sands [Tue, 6 Sep 2011 13:37:06 +0000 (13:37 +0000)]
Split the init.trampoline intrinsic, which currently combines GCC's
init.trampoline and adjust.trampoline intrinsics, into two intrinsics
like in GCC. While having one combined intrinsic is tempting, it is
not natural because typically the trampoline initialization needs to
be done in one function, and the result of adjust trampoline is needed
in a different (nested) function. To get around this llvm-gcc hacks the
nested function lowering code to insert an additional parent variable
holding the adjust.trampoline result that can be accessed from the child
function. Dragonegg doesn't have the luxury of tweaking GCC code, so it
stored the result of adjust.trampoline in the memory GCC set aside for
the trampoline itself (this is always available in the child function),
and set up some new memory (using an alloca) to hold the trampoline.
Unfortunately this breaks Go which allocates trampoline memory on the
heap and wants to use it even after the parent has exited (!). Rather
than doing even more hacks to get Go working, it seemed best to just use
two intrinsics like in GCC. Patch mostly by Sanjoy Das.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139140
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Nick Lewycky [Tue, 6 Sep 2011 07:02:40 +0000 (07:02 +0000)]
Fix typo in comment again.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139139
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Nick Lewycky [Tue, 6 Sep 2011 06:56:00 +0000 (06:56 +0000)]
Apparently we compile the code, not the comments. Thanks Eli!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139138
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Nick Lewycky [Tue, 6 Sep 2011 06:46:01 +0000 (06:46 +0000)]
Fix typo in comment.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139137
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Nick Lewycky [Tue, 6 Sep 2011 06:39:54 +0000 (06:39 +0000)]
Nope! I had it right the first time. Revert the operative part of r139135 and
add more showing of my work.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139136
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Nick Lewycky [Tue, 6 Sep 2011 05:33:18 +0000 (05:33 +0000)]
Fix flipped sign. While there, show my math.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139135
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Nick Lewycky [Tue, 6 Sep 2011 05:08:09 +0000 (05:08 +0000)]
No no no, fix typo properly!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139134
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Nick Lewycky [Tue, 6 Sep 2011 05:05:14 +0000 (05:05 +0000)]
The logic inside getMulExpr to simplify {a,+,b}*{c,+,d} was wrong, which was
visible given a=b=c=d=1, on iteration #1 (the second iteration). Replace it with
correct math. Fixes PR10383!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139133
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Nick Lewycky [Tue, 6 Sep 2011 02:43:13 +0000 (02:43 +0000)]
Revert r139126 due to selfhost failures reported by buildbots.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139130
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Nick Lewycky [Mon, 5 Sep 2011 23:25:16 +0000 (23:25 +0000)]
Teach SCEV to report a max backedge count in one interesting case in
HowFarToZero; the case for a canonical loop.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139126
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Nick Lewycky [Mon, 5 Sep 2011 21:51:43 +0000 (21:51 +0000)]
Add a new MC bit for NaCl (Native Client) mode. NaCl requires that certain
instructions are more aligned than the CPU requires, and adds some additional
directives, to follow in future patches. Patch by David Meyer!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139125
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Nick Lewycky [Mon, 5 Sep 2011 18:50:59 +0000 (18:50 +0000)]
Update the C++ backend to use the new ArrayRef'ified APIs. Patch by arrowdodger!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139124
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Nick Lewycky [Mon, 5 Sep 2011 18:35:03 +0000 (18:35 +0000)]
Fix typo in comment.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139122
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Benjamin Kramer [Mon, 5 Sep 2011 18:16:19 +0000 (18:16 +0000)]
InstSimplify: Don't try to replace an extractvalue/insertvalue pair with the original value if types don't match.
Fixes clang selfhost.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139120
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Duncan Sands [Mon, 5 Sep 2011 12:57:57 +0000 (12:57 +0000)]
Delete trivial landing pads that just continue unwinding the caught
exception.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139117
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Duncan Sands [Mon, 5 Sep 2011 06:52:48 +0000 (06:52 +0000)]
Add some simple insertvalue simplifications, for the purpose of cleaning
up do-nothing exception handling code produced by dragonegg.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139113
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Benjamin Kramer [Sun, 4 Sep 2011 23:53:04 +0000 (23:53 +0000)]
Use canonical forms for the branch probability zero heutistic.
- Drop support for X >u 0, it's equivalent to X != 0 and should be canonicalized into the latter.
- Add X < 1 -> unlikely, which is what instcombine canonicalizes X <= 0 into.
- Add X > -1 -> likely, which is what instcombine canonicalizes X >= 0 into.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139110
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Chandler Carruth [Sun, 4 Sep 2011 23:32:05 +0000 (23:32 +0000)]
As a (rather delayed) followup to r136738 which stopped building the
edis shared library in the Makefile build, also stop building it in the
CMake build.
Patch by arrowdodger!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139108
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Chandler Carruth [Sun, 4 Sep 2011 23:29:12 +0000 (23:29 +0000)]
Complete the removal of FindBison from CMake. Noticed this when browsing
some CMake patch backlog...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139107
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Chandler Carruth [Sun, 4 Sep 2011 23:24:13 +0000 (23:24 +0000)]
Update the CMake documentation to the correct variables.
Patch by arrowdodger!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139106
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