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38940 Commits

Author SHA1 Message Date
Evan Cheng
84f60b7359 llvm can't correctly support 'H', 'Q' and 'R' modifiers. Just mark it an error. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104891 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-27 22:08:38 +00:00
Kevin Enderby
bd658918df MC/X86: Add aliases for Jcc variants. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104890 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-27 21:33:19 +00:00
Dan Gohman
d27047f87d Eliminate some unnessary Path::exists() calls. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104888 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-27 20:51:54 +00:00
Dan Gohman
c2f500aaed Don't flush the raw_ostream in llvm::WriteBitcodeToFile; it's at 
the wrong level. Clients which need to leave the stream open but
which still require the bitcode bits to be on disk should call
flush themselves.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104885 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-27 20:26:51 +00:00
Devang Patel
d8720f4ba3 Do not drop location info for inlined function args. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104884 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-27 20:25:04 +00:00
Bob Wilson
d984eb6073 Fix some bad fall-throughs in a switch statement. Both the 'Q' and 'R' cases 
should fall through to the 'H' case, but instead 'Q' was falling through to 'R'
so that it would do the wrong thing for a big-endian ARM target.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104883 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-27 20:23:42 +00:00
Dale Johannesen
54feef2950 Mark some math lib intrinsic nodes Legal on SSE4.1. 
No functional effect as these nodes are not generated yet.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104879 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-27 20:12:41 +00:00
Dan Gohman
d928fb670f Don't special-case stdout in llvm::WriteBitcodeToFile; just consider 
it to be the caller's responsibility to provide a stream in binary
mode. This fixes a layering violation and avoids an outs() call.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104878 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-27 20:06:51 +00:00
Duncan Sands
1d9b973fd7 Teach instCombine to remove malloc+free if malloc's only uses are comparisons 
to null.  Patch by Matti Niemenmaa.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104871 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-27 19:09:06 +00:00
Jim Grosbach
084fb0ea32 hook ISD::STACKADDR to an intrinsic 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104869 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-27 18:52:11 +00:00
Dan Gohman
4d3d6e1a0c FastISel doesn't yet handle callee-pop functions. 
To support this, move IsCalleePop from X86ISelLowering to X86Subtarget.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104866 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-27 18:43:40 +00:00
Jim Grosbach
ad9aaf038e add ISD::STACKADDR to get the current stack pointer. Will be used by sjlj EH 
to update the jmpbuf in the presence of VLAs.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104862 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-27 18:23:48 +00:00
Bruno Cardoso Lopes
aa02ff1a2b Merge basic binops SSE 1 & 2 instruction classes. This is a step towards refactoring 
common code between SSE versions.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104860 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-27 18:17:40 +00:00
Dan Gohman
30377e7809 Add basic error checking to MemoryBuffer::getSTDIN. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104855 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-27 17:31:51 +00:00
Dan Gohman
95131fcb67 Use the return value of getMagicNumber instead of using a 
separate canRead() call.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104853 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-27 17:18:38 +00:00
Dan Gohman
02d5824266 Don't bother clearing the Magic string when the magic number 
can't be read, since it isn't cleared on other error paths.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104852 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-27 17:14:10 +00:00
Dan Gohman
130de9c0b4 Don't bother checking canRead() before calling getMagicNumber(); 
getMagicNumber() does its own error checking.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104851 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-27 17:12:23 +00:00
Devang Patel
55e9717e59 inlined function's arguments need a label to mark the start point because they are not directly attached to current function. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104848 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-27 16:47:30 +00:00
Stuart Hastings
aa66d2f48a Support for nested functions/classes in debug output. Radar 7424645. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104841 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-27 16:16:54 +00:00
Eric Christopher
aeed4d81a8 Rearrange conditionals so we don't get caught with the correct type as wrong. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104793 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-27 00:52:31 +00:00
Devang Patel
80250686d5 Simplify. Eliminate unneeded debug_loc entry. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104785 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-26 23:55:23 +00:00
Jakob Stoklund Olesen
8b3ca84a8d Avoid counting InlineAsm as a call - it prevents loop unrolling. 
PR7026
Patch by Pekka Jääskeläinen!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104780 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-26 22:40:28 +00:00
Dan Gohman
a0f7ff334f Fix Lint printing warnings multiple times. Remove the ErrorStr 
option from lintModule, which was an artifact from being
based on Verifier code.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104765 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-26 22:28:53 +00:00
Daniel Dunbar
dcbab9cf5a AsmMatcher/X86: Mark _REV instructions as "code gen only", they aren't expected 
to be matched.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104757 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-26 22:21:28 +00:00
Dan Gohman
882ddb492d Reinstate checking of stackrestore, with checking for both Read 
and Write, and add a comment explaining this.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104756 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-26 22:21:25 +00:00
Jakob Stoklund Olesen
c8b9f6ce23 Give SubRegIndex names to all ARM subregisters. This will be required by 
TableGen shortly.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104754 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-26 22:15:03 +00:00
Dan Gohman
749be11f4d Stackrestore is not a load. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104752 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-26 22:00:10 +00:00
Bill Wendling
804a231dd5 Add FIXME comment to remove this. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104749 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-26 21:53:50 +00:00
Dan Gohman
df9c8bc569 Remove a TODO which isn't practical. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104748 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-26 21:50:41 +00:00
Daniel Dunbar
cb8326dc09 MC: Add TargetMachine support for setting the value of MCRelaxAll with 
-filetype=obj.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104747 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-26 21:48:55 +00:00
Jakob Stoklund Olesen
160a3bf74d Add StringRef::compare_numeric and use it to sort TableGen register records. 
This means that our Registers are now ordered R7, R8, R9, R10, R12, ...
Not R1, R10, R11, R12, R2, R3, ...

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104745 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-26 21:47:28 +00:00
Dan Gohman
113b3e2c6e Implement checking of the tail keyword. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104744 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-26 21:46:36 +00:00
Devang Patel
77051f58e9 There is no need to force an line number entry (using previous location) for a temp label at unknown location. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104740 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-26 21:23:46 +00:00
Bill Wendling
8d717c7d99 Add "setjmp_syscall", "savectx", "qsetjmp", "vfork", "getcontext" to the list of 
usual suspects that could "return twice".


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104737 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-26 20:39:00 +00:00
Daniel Dunbar
83194de76a MC: When running with -mc-relax-all, we can eagerly relax instructions and avoid creating unnecessary MCInstFragments. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104736 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-26 20:37:03 +00:00
Daniel Dunbar
2ac0c453b2 MC/Mach-O: Factor out EmitInstTo{Fragment,Data} for emitting MCInst's as MCInstFragments or appending onto an MCDataFragment. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104735 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-26 20:37:00 +00:00
Jim Grosbach
23ff7cff52 Adjust eh.sjlj.setjmp to properly have a chain and to have an opcode entry in 
ISD::. No functional change.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104734 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-26 20:22:18 +00:00
Devang Patel
394427b014 Update debug info when live-in reg is copied into a vreg. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104732 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-26 20:18:50 +00:00
Kevin Enderby
b106543592 Fix the x86 move to/from segment register instructions. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104731 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-26 20:10:45 +00:00
Bill Wendling
9af7e9a1b5 Move the check for "calls setjmp" to SelectionDAGISel so that it can be used by 
more than just the stack slot coloring algorithm.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104722 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-26 19:46:12 +00:00
Devang Patel
b2b31a6f93 Identify instructions, that needs a label to mark debug info entity, in advance. This simplifies beginScope(). 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104720 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-26 19:37:24 +00:00
Dan Gohman
93d3433579 Eliminate the use of PriorityQueue and just use a std::vector, 
implementing pop with a linear search for a "best" element. The priority
queue was a neat idea, but in practice the comparison functions depend
on dynamic information.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104718 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-26 18:52:00 +00:00
Dan Gohman
d89c258051 Delete an unused function. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104716 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-26 18:34:12 +00:00
Daniel Dunbar
95506d40c5 MC: Change RelaxInstruction to only take the input and output instructions. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104713 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-26 18:15:06 +00:00
Dan Gohman
d9c2af5409 Fix a typo in a comment that Gabor noticed. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104711 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-26 18:03:53 +00:00
Daniel Dunbar
dae5b9f804 MC: Eliminate an unnecessary copy. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104709 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-26 17:50:16 +00:00
Daniel Dunbar
8488252855 MC: Simplify MayNeedRelaxation to not provide the fixups, so we can query it 
before encoding.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104707 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-26 17:45:29 +00:00
Devang Patel
b21a758bc2 Remove dead code. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104706 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-26 17:42:50 +00:00
Devang Patel
e2df84254d Do not construct location list backword! 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104705 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-26 17:29:32 +00:00
Jakob Stoklund Olesen
ca561ffcf3 Replace the SubRegSet tablegen class with a less error-prone mechanism. 
A Register with subregisters must also provide SubRegIndices for adressing the
subregisters. TableGen automatically inherits indices for sub-subregisters to
minimize typing.

CompositeIndices may be specified for the weirder cases such as the XMM sub_sd
index that returns the same register, and ARM NEON Q registers where both D
subregs have ssub_0 and ssub_1 sub-subregs.

It is now required that all subregisters are named by an index, and a future
patch will also require inherited subregisters to be named. This is necessary to
allow composite subregister indices to be reduced to a single index.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104704 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-26 17:27:12 +00:00
Daniel Dunbar
c90e30aa6f MC: Eliminate MCAsmFixup, replace with MCFixup. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104699 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-26 15:18:56 +00:00
Daniel Dunbar
482ad802f1 MC: Use accessors for access to MCAsmFixup. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104697 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-26 15:18:31 +00:00
Daniel Dunbar
c9adb8c61e MC: Change MCInst::dump_pretty to not include a trailing newline. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104696 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-26 15:18:13 +00:00
Benjamin Kramer
1464c1d60a Kill unneeded SExt. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104692 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-26 09:45:04 +00:00
Zhongxing Xu
c2798a18a7 SRetReturnReg was set in LowerFormalArguments(). So only assert it here. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104691 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-26 08:10:02 +00:00
Daniel Dunbar
e614e393c7 MC: Eliminate MCFragment vtable, which was unnecessary. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104689 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-26 06:50:57 +00:00
Shih-wei Liao
9f3b6a381a Coding style change (Adding 1 missing space.) 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104670 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-26 04:46:50 +00:00
Shih-wei Liao
45469f38b6 Adding the missing implementation for ARM::SBFX and ARM::UBFX. 
Fixing http://llvm.org/bugs/show_bug.cgi?id=7225.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104667 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-26 03:21:39 +00:00
Eric Christopher
174e597d46 Temporarily revert r104655 as it's breaking the bots. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104664 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-26 01:59:55 +00:00
Jim Grosbach
54e13eceff fix off by 1 (insn) error in eh.sjlj.setjmp thumb code sequence. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104661 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-26 01:22:21 +00:00
Jakob Stoklund Olesen
b555609e73 Revert "Replace the SubRegSet tablegen class with a less error-prone mechanism." 
This reverts commit 104654.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104660 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-26 01:21:14 +00:00
Dan Gohman
a4e4ffd389 Change push_all to a non-virtual function and implement it in the 
base class, since all the implementations are the same.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104659 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-26 01:10:55 +00:00
Dan Gohman
5eabaa2d7c Trim #include. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104657 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-26 00:55:59 +00:00
Bill Wendling
be22683202 Dale and Evan suggested putting the "check for setjmp" much earlier in the 
machine code generation. That's a good idea, so I made it so.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104655 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-26 00:32:40 +00:00
Jakob Stoklund Olesen
6a45d681e5 Replace the SubRegSet tablegen class with a less error-prone mechanism. 
A Register with subregisters must also provide SubRegIndices for adressing the
subregisters. TableGen automatically inherits indices for sub-subregisters to
minimize typing.

CompositeIndices may be specified for the weirder cases such as the XMM sub_sd
index that returns the same register, and ARM NEON Q registers where both D
subregs have ssub_0 and ssub_1 sub-subregs.

It is now required that all subregisters are named by an index, and a future
patch will also require inherited subregisters to be named. This is necessary to
allow composite subregister indices to be reduced to a single index.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104654 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-26 00:28:19 +00:00
Shih-wei Liao
6d37a29588 Adding the missing implementation of Bitfield's "clear" and "insert". 
Fixing http://llvm.org/bugs/show_bug.cgi?id=7222.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104653 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-26 00:25:05 +00:00
Shih-wei Liao
5170b71143 To handle s* registers in emitVFPLoadStoreMultipleInstruction(). 
Fixing http://llvm.org/bugs/show_bug.cgi?id=7221.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104652 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-26 00:02:28 +00:00
Eric Christopher
96ac5156ca Start adding mach-o tls reloc support. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104651 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-26 00:02:12 +00:00
Jakob Stoklund Olesen
76f0ad7bf5 Drop the SuperregHashTable. It is essentially the same as SubregHashTable. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104650 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-25 23:43:18 +00:00
Devang Patel
c3f5f783a2 First cut at supporting .debug_loc section. 
This is used to track variable information.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104649 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-25 23:40:22 +00:00
Benjamin Kramer
48aefe15d0 Properly promote operands when optimizing a single-character memcmp. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104648 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-25 22:53:43 +00:00
Bill Wendling
f10bc81b4e Constify function. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104646 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-25 22:02:22 +00:00
Dan Gohman
eddc114a66 Do one map lookup instead of two. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104645 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-25 21:59:42 +00:00
Dan Gohman
5b71dcedf0 Fix a missing newline in debug output. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104644 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-25 21:50:35 +00:00
Eric Christopher
04386ca726 Move the verbose asm output up a bit so it can be used in the special cases 
as well.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104642 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-25 21:49:43 +00:00
Bill Wendling
5edfbdc963 Okay, bear with me here... 
If you have a setjmp/longjmp situation, it's possible for stack slot coloring to
reuse a stack slot before it's really dead. For instance, if we have something
like this:

1:  y = g;
    x = sigsetjmp(env, 0);
    switch (x) {
    case 1:
      /* ... */
      goto run;  
    case 0:
  run:
      do_run(); /* marked as "no return" */
      break;
    case 3:
      if (...) {
        /* ... */
        goto run;
      }
      /* ... */
      break;
    }

2:  g = y;

"y" may be put onto the stack, so the expression "g = y" is relying upon the
fact that the stack slot containing "y" isn't modified between (1) and (2). But
it can be, because of the "no return" calls in there. A longjmp might come back
with 3, modify the stack slot, and then go to case 0. And it's perfectly
acceptable to reuse the stack slot there because there's no CFG flow from case 3
to (2).

The fix is to disable certain optimizations in these situations. Ideally, we'd
disable them for all "returns twice" functions. But we don't support that
attribute. Check for "setjmp" and "sigsetjmp" instead.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104640 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-25 21:44:26 +00:00
Eric Christopher
02b46bc942 Add support for initialized global data for darwin tls. Update comments 
and testcases accordingly.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104635 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-25 21:28:50 +00:00
Kevin Enderby
cf50a5390c Changed the encoding of X86 floating point stack operations where both operands 
are st(0).  These can be encoded using an opcode for storing in st(0) or using
an opcode for storing in st(i), where i can also be 0.  To allow testing with
the darwin assembler and get a matching binary the opcode for storing in st(0)
is now used.  To do this the same logical trick is use from the darwin assembler
in converting things like this:

fmul %st(0), %st

into this:

fmul %st(0)

by looking for the second operand being X86::ST0 for specific floating point
mnemonics then removing the second X86::ST0 operand.  This also has the add
benefit to allow things like:

fmul %st(1), %st

that llvm-mc did not assemble.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104634 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-25 20:52:34 +00:00
Jakob Stoklund Olesen
b53985239c Separate unrelated cases that once shared a numeric value 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104629 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-25 19:49:40 +00:00
Jakob Stoklund Olesen
1fc8e759a7 Print symbolic SubRegIndex names on machine operands. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104628 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-25 19:49:38 +00:00
Jakob Stoklund Olesen
4fda9670f0 Remove NumberHack entirely. 
SubRegIndex instances are now numbered uniquely the same way Register instances
are - in lexicographical order by name.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104627 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-25 19:49:33 +00:00
Daniel Dunbar
39e2dd7bab MC/X86: Add a hack to allow recognizing 'cmpltps' and friends. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104626 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-25 19:49:32 +00:00
Dale Johannesen
86234c30a7 Fix another variant of PR 7191. Also add a testcase 
Mon Ping provided; unfortunately bugpoint failed to
reduce it, but I think it's important to have a test for
this in the suite.  8023512.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104624 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-25 18:47:23 +00:00
Daniel Dunbar
79373680ed MC/X86: Define explicit immediate forms of cmp{ss,sd,ps,pd}. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104622 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-25 18:40:53 +00:00
Kevin Enderby
04ac770be9 The BT64ri8 record in X86Instr64bit.td was missing a REX_W which is required 
for the 64-bit version of the Bit Test instruction.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104621 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-25 18:16:58 +00:00
Dale Johannesen
61734eb117 Fix PR 7191. I have been unable to create a .ll file that fails, sorry. 
(oye, a word which should be better known to people writing tree
traversals, means grandchild.)



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104619 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-25 17:50:03 +00:00
Eric Christopher
7e2f5aaa67 Make sure aeskeygenassist uses an unsigned immediate field. 
Fixes rdar://8017638


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104617 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-25 17:33:22 +00:00
Jakob Stoklund Olesen
48d0c163fb Ignore NumberHack and give each SubRegIndex instance a unique enum value instead. 
This passes lit tests, but I'll give it a go through the buildbots to smoke out
any remaining places that depend on the old SubRegIndex numbering.

Then I'll remove NumberHack entirely.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104615 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-25 17:21:04 +00:00
Jakob Stoklund Olesen
c159fba712 Use enums instead of literals for SystemZ subregisters 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104612 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-25 17:04:18 +00:00
Jakob Stoklund Olesen
22c0e97c56 Use enums instead of literals for X86 subregisters. 
The cases in getMatchingSuperRegClass cannot be broken up until the enums have
unique values.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104611 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-25 17:04:16 +00:00
Zonr Chang
f3c770a2cb Add missing implementation to the materialization of VFP misc. instructions (vmrs, vmsr and vmov (immediate)) 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104588 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-25 10:23:52 +00:00
Zonr Chang
f86399be0c Add support to MOVimm32 using movt/movw for ARM JIT 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104587 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-25 08:42:45 +00:00
Bob Wilson
a85df80ed7 Allow t2MOVsrl_flag and t2MOVsra_flag instructions to be predicated. 
I don't know of any particular reason why that would be important, but
neither can I see any reason to disallow it.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104583 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-25 04:51:47 +00:00
Bob Wilson
4876bdb69e Fix up instruction classes for Thumb2 RSB instructions to be consistent with 
Thumb2 ADD and SUB instructions: allow RSB instructions be changed to set the
condition codes, and allow RSBS instructions to be predicated.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104582 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-25 04:43:08 +00:00
Bob Wilson
ab3912e3ce Clean up indentation. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104580 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-25 03:36:52 +00:00
Jakob Stoklund Olesen
b7a3170917 Disable invalid coalescer assertion. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104574 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-25 00:15:18 +00:00
Jakob Stoklund Olesen
e00fa64c16 Use enums instead of literals in the ARM backend. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104573 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-25 00:15:15 +00:00
Bill Wendling
ef473bfc44 Print out the name of the function during SSC. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104572 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-24 23:16:04 +00:00
Jakob Stoklund Olesen
33276d95ef Switch SubRegSet to using symbolic SubRegIndices 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104571 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-24 23:03:18 +00:00
Bob Wilson
c21763fd99 Allow Thumb2 MVN instructions to set condition codes. The immediate operand 
version of t2MVN already allowed that, but not the register versions.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104570 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-24 22:41:19 +00:00