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Chris Lattner [Fri, 12 Mar 2010 07:15:36 +0000 (07:15 +0000)]
fix PR6577, a bug in sdbuilder lowering select instructions
whose true value was not Val#0.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98336
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Chris Lattner [Fri, 12 Mar 2010 06:32:12 +0000 (06:32 +0000)]
update mkpatch for MC, patch by Aaron Gray
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98334
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Bill Wendling [Fri, 12 Mar 2010 02:00:43 +0000 (02:00 +0000)]
The same situation that effected ARM effects PPC with regards to placing the
LSDA into the TEXT section. We need to generate non-lazy pointers to it on
Mach-O. However, the object the NLP points to may be local to the translation
unit. If so, then the NLP needs to have the value of that object specified
instead of "0", which the linker interprets as "external".
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98325
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Chris Lattner [Fri, 12 Mar 2010 01:56:43 +0000 (01:56 +0000)]
make TargetLoweringObjectFile::getExprForDwarfReference
just make unnamed temp symbols instead of having to come
up with its own names.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98324
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Devang Patel [Thu, 11 Mar 2010 23:44:52 +0000 (23:44 +0000)]
There is no need to create specification DIE for definitions at DIFile level.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98302
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Bill Wendling [Thu, 11 Mar 2010 23:39:44 +0000 (23:39 +0000)]
MC-ize PPC's asm printing of stubs.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98300
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Nate Begeman [Thu, 11 Mar 2010 23:21:19 +0000 (23:21 +0000)]
Whoops this already existed.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98297
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Nate Begeman [Thu, 11 Mar 2010 23:06:07 +0000 (23:06 +0000)]
Add a handful of additional useful pass manager things to the C API
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98296
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Jakob Stoklund Olesen [Thu, 11 Mar 2010 23:04:34 +0000 (23:04 +0000)]
Extract methods from LocalRewriter::RewriteMBB bringing it down to 666 lines.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98295
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Chris Lattner [Thu, 11 Mar 2010 22:56:10 +0000 (22:56 +0000)]
enhance MCContext::GetOrCreateTemporarySymbol() to create a new symbol
with an arbitrary unique name.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98294
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Chris Lattner [Thu, 11 Mar 2010 22:53:35 +0000 (22:53 +0000)]
change MCContext to always have an MCAsmInfo.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98293
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Chris Lattner [Thu, 11 Mar 2010 21:55:20 +0000 (21:55 +0000)]
fix a fixme in TargetLoweringObjectFile::getExprForDwarfReference
where we used ot create an MCSymbol for ".". Now emit an assembler
temporary label and reference it instead of "." textually.
rdar://
7739457
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98292
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Dan Gohman [Thu, 11 Mar 2010 21:39:57 +0000 (21:39 +0000)]
Remove getWidenVectorType, which is no longer used.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98289
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Chris Lattner [Thu, 11 Mar 2010 21:38:58 +0000 (21:38 +0000)]
empty symbols aren't possible, the mcsymbol ctor aborts on them.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98288
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Johnny Chen [Thu, 11 Mar 2010 21:02:50 +0000 (21:02 +0000)]
Set the (Format)F filed of t2Int_MemBarrierV7 & t2Int_SyncBarrierV7 to ThumbFrm,
instead of Pseudo, which helps Thumb decoder to recognize them as Thumb instr.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98285
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Benjamin Kramer [Thu, 11 Mar 2010 20:45:13 +0000 (20:45 +0000)]
stpcpy is so similar to strcpy, it doesn't deserve a complete copy of the __strcpy_chk -> strcpy code.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98284
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Bill Wendling [Thu, 11 Mar 2010 19:50:31 +0000 (19:50 +0000)]
revert r98270.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98281
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Chris Lattner [Thu, 11 Mar 2010 19:41:58 +0000 (19:41 +0000)]
rename getSymbolForDwarf* to getExprForDwarf* since it returns
an MCExpr and not an MCSymbol. Change it to take an MCStreamer,
which is currently unused.
No functionality change.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98278
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Evan Cheng [Thu, 11 Mar 2010 19:38:18 +0000 (19:38 +0000)]
In case of tail call size of Ins and InVals may not match.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98277
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Eric Christopher [Thu, 11 Mar 2010 19:24:34 +0000 (19:24 +0000)]
Lower stpcpy_chk when possible.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98274
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Evan Cheng [Thu, 11 Mar 2010 18:49:14 +0000 (18:49 +0000)]
Bad bad bug. x86 force indirect tail call address into eax when it's meant to force it into a call preserved register instead. Change it to ecx for now.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98270
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Richard Osborne [Thu, 11 Mar 2010 18:38:59 +0000 (18:38 +0000)]
Remove dead code. (S|U)MUL_LO is now lowered to LMUL or MACC(S|U)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98269
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Jeffrey Yasskin [Thu, 11 Mar 2010 18:29:55 +0000 (18:29 +0000)]
Avoid leaking CompileUnits in DwarfDebug.cpp.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98268
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Daniel Dunbar [Thu, 11 Mar 2010 18:22:51 +0000 (18:22 +0000)]
MC/Mach-O: Add MCSymbolData::getAddress() utility.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98266
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Eric Christopher [Thu, 11 Mar 2010 17:45:38 +0000 (17:45 +0000)]
Fix typo.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98260
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Richard Osborne [Thu, 11 Mar 2010 16:26:35 +0000 (16:26 +0000)]
Add dag combine to simplify lmul(x, 0, a, b)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98258
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Richard Osborne [Thu, 11 Mar 2010 14:58:56 +0000 (14:58 +0000)]
Switch XCore over to using inline jump table entries.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98256
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Richard Osborne [Thu, 11 Mar 2010 14:58:16 +0000 (14:58 +0000)]
Add a new jump table encoding to indicate jump tables entries
are inside the function by the target at the point of use.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98255
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Evan Cheng [Thu, 11 Mar 2010 08:20:21 +0000 (08:20 +0000)]
The check for coalescing a virtual register to a physical register, e.g.
cl = EXTRACT_SUBREG reg1024, 1, is overly conservative. It should check
for overlaps of vr's live interval with the super registers of the
physical register (ECX in this case) and let JoinIntervals() handle checking
the coalescing feasibility against the physical register (cl in this case).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98251
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Ted Kremenek [Thu, 11 Mar 2010 07:51:23 +0000 (07:51 +0000)]
Update CMake build.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98250
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Eric Christopher [Thu, 11 Mar 2010 06:20:22 +0000 (06:20 +0000)]
Have fast-isel understand llvm.objectsize. Update testcase for slightly
different codegen.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98244
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Jeffrey Yasskin [Thu, 11 Mar 2010 06:14:32 +0000 (06:14 +0000)]
Make clang bootstrap happier on OSX 10.5 by reducing the number of headers
included when using global symbols to ask the linker for the addresses of
various functions. One of the symbols was actually getting declared by a
header included in DynamicLibrary.cpp, which conflicted with the "extern void*"
declaration in SearchForAddressOfSpecialSymbol().
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98243
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Daniel Dunbar [Thu, 11 Mar 2010 05:53:37 +0000 (05:53 +0000)]
MC/Mach-O: Implement "absolutizing" semantics of .set, by evaluating the assembly time value of variables.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98241
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Daniel Dunbar [Thu, 11 Mar 2010 05:53:33 +0000 (05:53 +0000)]
MC/Mach-O: Start passing in the basic MCAsmLayout object.
- Also, drop the current location part of AsmLayout, I think I prefer to implement this via explicit symbols.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98240
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Eric Christopher [Thu, 11 Mar 2010 02:41:03 +0000 (02:41 +0000)]
Do some final lowering in CodeGenPrepare of _chk calls similar to
that in InstCombineCalls.
More call lowering needed.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98228
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Daniel Dunbar [Thu, 11 Mar 2010 02:28:59 +0000 (02:28 +0000)]
MC: Sketch initial MCAsmLayout class, which encapsulates the current layout of an assembly file. The MCAsmLayout is also available for use by MCExpr::EvaluateAs{Absolute,Relocatable}, to allow target specific hooks and "absolutizing" of symbols.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98227
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Daniel Dunbar [Thu, 11 Mar 2010 02:28:52 +0000 (02:28 +0000)]
Fix (unused) RegisterAsmBackend template, clang++ isn't happy about this.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98226
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Daniel Dunbar [Thu, 11 Mar 2010 02:28:48 +0000 (02:28 +0000)]
Remove dead include.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98225
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Dale Johannesen [Thu, 11 Mar 2010 02:10:24 +0000 (02:10 +0000)]
Fix debug_value handling.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98224
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Daniel Dunbar [Thu, 11 Mar 2010 01:34:27 +0000 (01:34 +0000)]
MC: Provide MCAssembler with a TargetAsmBackend.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98222
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Daniel Dunbar [Thu, 11 Mar 2010 01:34:21 +0000 (01:34 +0000)]
MC: Sketch some TargetAsmBackend hooks we are going to need.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98221
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Daniel Dunbar [Thu, 11 Mar 2010 01:34:16 +0000 (01:34 +0000)]
MC: Provide the target triple to AsmBackend constructors.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98220
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Eric Christopher [Thu, 11 Mar 2010 01:25:07 +0000 (01:25 +0000)]
Add strncpy libcall creator. Use it when it should be used.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98219
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Bill Wendling [Thu, 11 Mar 2010 01:18:13 +0000 (01:18 +0000)]
When outputing a non-lazy pointer for a stub, we may need to fill in the value
for the NLP because the object it's pointing to may be internal to the file.
This seems counter-intuitive, but bear with me. When we place the LSDA into the
TEXT section, the type info pointers need to be indirect and pc-rel. We
accomplish this by using NLPs. However, sometimes the types are local to the
file. GCC gets around this by not using a NLP in this case, but a "regular"
indirection like this:
GCC_except_tbl:
.long Lfoo-.
__ZTIA: @ This is local
...
Lfoo:
.long __ZTIA
LLVM prefers NLPs on Darwin. In fact, it's more optimal for load performance to
use them.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98218
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Johnny Chen [Thu, 11 Mar 2010 01:13:36 +0000 (01:13 +0000)]
Added Thumb2 LDRD/STRD pre/post variants for disassembly only.
Plus fixed the encoding of t2LDRDpci such that P = 1 and W = 0 (offset mode).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98217
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Dale Johannesen [Thu, 11 Mar 2010 00:52:12 +0000 (00:52 +0000)]
Make sure HasDebugValue is initialized. This should fix
the buildbot running valgrind.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98216
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Bob Wilson [Thu, 11 Mar 2010 00:46:22 +0000 (00:46 +0000)]
Fix ARM buildbot breakage.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98215
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Chris Lattner [Thu, 11 Mar 2010 00:22:57 +0000 (00:22 +0000)]
add support, testcases, and dox for the new GHC calling
convention. Patch by David Terei!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98212
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Bob Wilson [Thu, 11 Mar 2010 00:20:49 +0000 (00:20 +0000)]
Lower small memcpys to load/stores on Thumb2.
Radar
7686922.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98210
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Jakob Stoklund Olesen [Thu, 11 Mar 2010 00:11:33 +0000 (00:11 +0000)]
VirtRegRewriter spring cleaning. No functional change.
Move methods out of line and M-x whitespace-cleanup.
Promote common method arguments to member variables.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98207
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Chris Lattner [Thu, 11 Mar 2010 00:06:19 +0000 (00:06 +0000)]
Work around a bug in the openbsd assembler on i386,
which doesn't support .quad correctly because it is
"really really old". PR6528.
Yet another reason the mc assembler should take over ;-)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98205
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Chris Lattner [Wed, 10 Mar 2010 23:46:44 +0000 (23:46 +0000)]
fix PR6533 by updating the br(xor) code to remember the case
when it looked past a trunc.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98203
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Dale Johannesen [Wed, 10 Mar 2010 23:37:24 +0000 (23:37 +0000)]
Cosmetic: lengthen names and improve comments.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98202
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Bob Wilson [Wed, 10 Mar 2010 22:38:45 +0000 (22:38 +0000)]
Fix an obvious typo in an assert.
Patch by Sean Callanan.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98200
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Bill Wendling [Wed, 10 Mar 2010 22:34:10 +0000 (22:34 +0000)]
Add a bit along with the MCSymbols stored in the MachineModuleInfo maps that
indicates that an MCSymbol is external or not. (It's true if it's external.)
This will be used to specify the correct information to add to non-lazy
pointers. That will be explained further when this bit is used.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98199
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Dale Johannesen [Wed, 10 Mar 2010 22:13:47 +0000 (22:13 +0000)]
Progress towards shepherding debug info through SelectionDAG.
No functional effect yet. This is still evolving and should
not be viewed as final.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98195
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Chris Lattner [Wed, 10 Mar 2010 21:42:42 +0000 (21:42 +0000)]
move PR6576 here.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98194
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Chris Lattner [Wed, 10 Mar 2010 21:27:53 +0000 (21:27 +0000)]
add DESTDIR support for TOOLALIAS, for PR6557, patch by
Matthias Klose!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98193
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Dan Gohman [Wed, 10 Mar 2010 21:04:53 +0000 (21:04 +0000)]
Fix another bitwidth calculation to handle vector types; based on a
patch by Micah Villmow for PR6572.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98188
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Daniel Dunbar [Wed, 10 Mar 2010 20:58:31 +0000 (20:58 +0000)]
MC/Mach-O: Use the MCAssembler symbol map instead of reconstructing.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98187
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Daniel Dunbar [Wed, 10 Mar 2010 20:58:29 +0000 (20:58 +0000)]
MC: Move the backend section and symbol data maps to MCAssembler.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98186
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Daniel Dunbar [Wed, 10 Mar 2010 20:58:25 +0000 (20:58 +0000)]
Remove unneeded declarations.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98185
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Jim Grosbach [Wed, 10 Mar 2010 20:01:30 +0000 (20:01 +0000)]
Make sure the LR gets pushed in functions that use vaargs. This fixes
400.perlbench for the nightly tests.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98183
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Jim Grosbach [Wed, 10 Mar 2010 19:59:47 +0000 (19:59 +0000)]
comment why we use custom epilogue for t1 functions using vaargs.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98182
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Dale Johannesen [Wed, 10 Mar 2010 19:57:56 +0000 (19:57 +0000)]
Fix another place where DEBUG_VALUE affected codegen.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98181
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Dan Gohman [Wed, 10 Mar 2010 19:38:49 +0000 (19:38 +0000)]
Add a DominatorTree argument to isLCSSA so that it doesn't have to
compute a set of reachable blocks for itself each time it is called, which
is fairly frequently.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98179
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Dan Gohman [Wed, 10 Mar 2010 19:31:51 +0000 (19:31 +0000)]
Constant-fold GEP-of-GEP into a single GEP.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98178
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Dan Gohman [Wed, 10 Mar 2010 19:00:54 +0000 (19:00 +0000)]
Fix whitespace.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98173
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Johnny Chen [Wed, 10 Mar 2010 18:59:38 +0000 (18:59 +0000)]
Factored out the disassembly printing of CPS option, MSR mask, and Negative Zero
operands into their own PrintMethod, in order not to pollute the printOperand()
impl with disassembly only Imm modifiers.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98172
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Tobias Grosser [Wed, 10 Mar 2010 18:41:59 +0000 (18:41 +0000)]
Fix make check with cmake/lit
PR6540: Set the newly introduced variables ENABLE_SHARED and
SHLIBPATH_VAR in lit.site.cfg not only in the autoconf build, but also
in a cmake one.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98171
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Richard Osborne [Wed, 10 Mar 2010 18:14:47 +0000 (18:14 +0000)]
The backend now makes a reasonable job of targeting lmul / macc
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98169
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Richard Osborne [Wed, 10 Mar 2010 18:12:27 +0000 (18:12 +0000)]
Handle MVT::i64 type in DAG combine for ISD::ADD. Fold 64 bit
expression add(add(mul(x,y),a),b) -> lmul(x,y,a,b) if all
operands are zero extended.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98168
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Daniel Dunbar [Wed, 10 Mar 2010 17:56:05 +0000 (17:56 +0000)]
Remove unneeded includes.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98167
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Bob Wilson [Wed, 10 Mar 2010 17:54:11 +0000 (17:54 +0000)]
Testcase for pr6552. I changed the code to use "ip" instead of "fp" because
the "fp" register name is not valid on Darwin, and the "ip" register name was
broken for all ARM targets.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98166
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Richard Osborne [Wed, 10 Mar 2010 17:16:29 +0000 (17:16 +0000)]
Fix checking of intermediates having one use in isADDADDMUL
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98164
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Richard Osborne [Wed, 10 Mar 2010 17:10:35 +0000 (17:10 +0000)]
Extract recognition of patterns such as add(add(mul(x,y),a),b)
into a seperate function.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98162
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Richard Osborne [Wed, 10 Mar 2010 16:27:11 +0000 (16:27 +0000)]
Fix thinko.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98158
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Richard Osborne [Wed, 10 Mar 2010 16:19:31 +0000 (16:19 +0000)]
Fold add(add(mul(x,y),a),b) -> lmul(x,y,a,b) if the intermediate
results are unused elsewhere.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98157
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Benjamin Kramer [Wed, 10 Mar 2010 16:04:20 +0000 (16:04 +0000)]
Remove duplicated code. No functionality change.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98156
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Dale Johannesen [Wed, 10 Mar 2010 15:06:26 +0000 (15:06 +0000)]
Fix a bug in DEBUG_VALUE handling Devang ran into.
I'll get this loop right yet.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98155
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Richard Osborne [Wed, 10 Mar 2010 13:27:10 +0000 (13:27 +0000)]
Prefer LMUL to MACCU as LMUL has no tied operands.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98153
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Richard Osborne [Wed, 10 Mar 2010 13:20:07 +0000 (13:20 +0000)]
Custom lower (S|U)MUL_LOHI -> MACC(S|U)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98152
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Richard Osborne [Wed, 10 Mar 2010 11:42:05 +0000 (11:42 +0000)]
Fix indentation
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98151
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Richard Osborne [Wed, 10 Mar 2010 11:41:08 +0000 (11:41 +0000)]
Lower add (mul a, b), c into MACCU / MACCS nodes which translate
directly to the maccu / maccs instructions. We handle this in
ExpandADDSUB since after type legalisation it is messy to
recognise these operations.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98150
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Richard Osborne [Wed, 10 Mar 2010 11:24:03 +0000 (11:24 +0000)]
Convert test to FileCheck.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98148
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Chris Lattner [Wed, 10 Mar 2010 07:20:42 +0000 (07:20 +0000)]
move three lowering hooks from MAI to TLOF and make one of them
semantic instead of syntactic. This completes MCization of
darwin/x86[-64]!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98145
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Evan Cheng [Wed, 10 Mar 2010 07:07:55 +0000 (07:07 +0000)]
Fix typo.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98142
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Evan Cheng [Wed, 10 Mar 2010 07:07:45 +0000 (07:07 +0000)]
Unbreak test on Linux.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98141
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Dale Johannesen [Wed, 10 Mar 2010 05:45:47 +0000 (05:45 +0000)]
This survived a bootstrap, so let's try 98104 again.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98137
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Evan Cheng [Wed, 10 Mar 2010 03:07:41 +0000 (03:07 +0000)]
Enable machine cse pass.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98132
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Chris Lattner [Wed, 10 Mar 2010 02:48:06 +0000 (02:48 +0000)]
mcize the rest of EH emission, only one more directive missing
for darwin/x86 to be completely mcized.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98130
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Chris Lattner [Wed, 10 Mar 2010 02:29:31 +0000 (02:29 +0000)]
add missing filename!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98125
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Chris Lattner [Wed, 10 Mar 2010 02:25:11 +0000 (02:25 +0000)]
set the temporary bit on MCSymbols correctly.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98124
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Dan Gohman [Wed, 10 Mar 2010 02:18:48 +0000 (02:18 +0000)]
Fix a comment.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98122
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Evan Cheng [Wed, 10 Mar 2010 02:12:03 +0000 (02:12 +0000)]
Add a couple more heuristics to neuter machine cse some more.
1. Be careful with cse "cheap" expressions. e.g. constant materialization. Only cse them when the common expression is local or in a direct predecessor. We don't want cse of cheap instruction causing other expressions to be spilled.
2. Watch out for the case where the expression doesn't itself uses a virtual register. e.g. lea of frame object. If the common expression itself is used by copies (common for passing addresses to function calls), don't perform the cse. Since these expressions do not use a register, it creates a live range but doesn't close any, we want to be very careful with increasing register pressure.
Note these are heuristics so machine cse doesn't make register allocator unhappy. Once we have proper live range splitting and re-materialization support in place, these should be evaluated again.
Now machine cse is almost always a win on llvm nightly tests on x86 and x86_64.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98121
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Daniel Dunbar [Wed, 10 Mar 2010 02:10:29 +0000 (02:10 +0000)]
MC/Mach-O: Resolve a FIXME; these relocation types are no longer semanticaly different.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98120
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Dan Gohman [Wed, 10 Mar 2010 01:29:39 +0000 (01:29 +0000)]
Clarify the documentation for MachineFunctionPasses.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98119
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Chris Lattner [Wed, 10 Mar 2010 01:29:27 +0000 (01:29 +0000)]
eliminate MCContext::CreateSymbol and CreateTemporarySymbol.
Add a new GetOrCreateTemporarySymbol method and a version that
takes a twine.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98118
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Chris Lattner [Wed, 10 Mar 2010 01:17:49 +0000 (01:17 +0000)]
inline away a form of IsPCRelative, eliminating the
dead IsPCRel argument.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98117
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Chris Lattner [Wed, 10 Mar 2010 01:04:13 +0000 (01:04 +0000)]
add some fixme's for MCizing. EH still has a few things that
need to be MCized, but the last debug info thing are LEB and
cygwin specific (which the MC api doesn't support yet) and
one specific form of EmitReference which I'll tackle next.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98116
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