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8cb65a5092
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29003 Commits

Author SHA1 Message Date
Chris Lattner
8cb65a5092 remove dead code, the main codepath never has to deal 
with MBB's.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73830 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-20 19:34:47 +00:00
Chris Lattner
7680e73341 eliminate the "call" operand modifier from the asm descriptions, modeling 
it as a pcrel immediate instead.  This gets pc-rel weirdness out of the
main printoperand codepath.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73829 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-20 19:34:09 +00:00
Chris Lattner
7f8217f64b fix edit-o 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73824 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-20 08:13:12 +00:00
Chris Lattner
dc479f6ebf some comments and cleanup 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73818 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-20 07:59:10 +00:00
Chris Lattner
c12430644a implement support for lowering subregs when preparing to print 
LEA64_32r, eliminating a bunch of modifier logic stuff on addr modes.

Implement support for printing mbb labels as operands.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73817 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-20 07:03:18 +00:00
Evan Cheng
694f6c81e8 Fix PR4419: handle defs of partial uses. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73816 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-20 04:34:51 +00:00
Devang Patel
e9fe6c7729 Remove unused field. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73815 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-20 01:07:54 +00:00
Devang Patel
66b4d3ba52 Initialize MMI 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73813 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-20 01:00:07 +00:00
Chris Lattner
ad48be0ea3 hook up printMemReference. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73811 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-20 00:50:32 +00:00
Chris Lattner
f38c03af2a Start implementing translation of MachineInstr to MCInst. Next 
step is to make tblgen generate something more appropriate for MCInst,
and generate calls to operand translation routines where needed.
This includes a bunch of #if 0 code which will slowly be refactored into
something sensible.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73810 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-20 00:49:26 +00:00
Dan Gohman
763bad1a2b Generalize isLoopGuardedByCond's checking to consider two 
SCEVUnknowns with identical Instructions to be equal. This allows
it to analze cases such as the attached testcase, where the front-end
has cloned the loop controlling expression. Along with r73805, this
lets IndVarSimplify eliminate all the sign-extend casts in the
loop in the attached testcase.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73807 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-20 00:35:32 +00:00
Owen Anderson
107a537db1 Workaround for an... interesting bug in Darwin's pthread_rwlock_init. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73806 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-20 00:32:27 +00:00
Dan Gohman
3964acc2f4 Use ScalarEvolution's new GetMinSignBits and GetMinLeadingZeros 
in the loop backedge-taken count computation of the maximum
possible trip count.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73805 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-20 00:32:22 +00:00
Owen Anderson
ac7087ecf0 Forgot this file. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73802 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-20 00:26:26 +00:00
Owen Anderson
04fb7c36a9 Revert r73790, and replace it with a significantly less ugly solution. Rather than trying to make the global reader-writer lock work, 
create separate recursive mutexes for each value map.  The recursive-ness fixes the double-acquiring issue, which having one per ValueMap
lets us continue to maintain some concurrency.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73801 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-20 00:24:58 +00:00
Chris Lattner
d5fb790613 stub out some hacky code for wiring up the new asmprinter interfaces 
on X86.  Not useful yet.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73799 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-19 23:59:57 +00:00
Dan Gohman
224a19c490 Fix a typo in a comment that Frits von Bommel noticed. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73796 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-19 23:41:37 +00:00
Dan Gohman
2c364ad4a6 Make GetMinTrailingZeros a member function of ScalarEvolution, 
so that it can access the TargetData member (when available) and
use ValueTracking.h information to compute information for
SCEVUnknown Values.

Also add GetMinLeadingZeros and GetMinSignBits functions,
with minimal implementations.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73794 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-19 23:29:04 +00:00
Dan Gohman
2781f30eac Re-apply r73718, now that the fix in r73787 is in, and add a 
hand-crafted testcase which demonstrates the bug that was exposed
in 254.gap.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73793 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-19 23:23:27 +00:00
Devang Patel
5090f19f09 DwarfWriter is used to emit EH info also. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73792 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-19 23:21:20 +00:00
Evan Cheng
ae69a2a12b Enable arm pre-allocation load / store multiple optimization pass. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73791 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-19 23:17:27 +00:00
Owen Anderson
430444b102 Fix a serious bug that would cause deadlock during abstract type refinement. The constant creation 
gets involved, and we end up trying to recursively acquire a writer lock.  The fix for this is slightly horrible,
and involves passing a boolean "locked" parameter around in Constants.cpp, but it's better than having locked and
unlocked versions of most of the code.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73790 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-19 23:16:19 +00:00
Dan Gohman
4d1c1efd80 Fix LSR's OptimizeSMax to ignore max operators with more than 2 operands, 
which it isn't prepared to handle.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73787 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-19 23:03:46 +00:00
Devang Patel
1e86a66b00 mv CodeGen/DebugLoc.h Support/DebugLoc.h 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73786 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-19 22:08:58 +00:00
Devang Patel
14a55d952c Move up dwarf writer initialization in common AsmPrinter class. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73784 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-19 21:54:26 +00:00
Evan Cheng
73a76736fb Revert 73718. It's breaking 254.gap. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73783 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-19 21:15:06 +00:00
Anton Korobeynikov
e494b9e0d7 Unbreak cyclic deps 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73781 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-19 19:36:55 +00:00
Owen Anderson
b9c2f58229 Fix bad paste-o in the MSVC atomics. 
Patch by Иван Сорокин.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73779 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-19 18:37:50 +00:00
Owen Anderson
1f0ba8c57b Forgot to remove some explicit locking when it became implicit in the ValueMap. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73778 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-19 18:34:09 +00:00
Dan Gohman
0c689c5e05 Make ScalarEvolution::print print getSCEVAtScope values for 
expressions, when interesting.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73776 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-19 17:49:54 +00:00
Owen Anderson
8e1c17aa5a Move the memory fences out of the path for single-threaded mode. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73775 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-19 17:45:12 +00:00
Dan Gohman
958e292c7a Don't (unconditionally) use getSCEVAtScope to simplify the step 
expression in IVUsers, because in the case of a use of a non-linear
addrec outside of a loop, this causes the addrec to be evaluated as
a linear addrec.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73774 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-19 17:33:15 +00:00
Owen Anderson
ae60c0f78e Fix incorrect comment pointed out by Duncan. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73773 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-19 17:20:50 +00:00
Chris Lattner
79c740ff47 make jump threading handle lexically identical compare instructions 
as if they were multiple uses of the same instruction.  This interacts
well with the existing loadpre that j-t does to open up many new jump
threads earlier.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73768 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-19 16:27:56 +00:00
Chris Lattner
225503a5b5 fix the sparc codegen to not depend on the sparc asmprinter. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73767 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-19 15:48:10 +00:00
Duncan Sands
852cd112ed Add support for AuroraUX. Patch by evocallaghan. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73766 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-19 14:40:01 +00:00
Evan Cheng
b1019480b6 Add comments. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73761 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-19 07:06:07 +00:00
Eli Friedman
7e2242be71 Fix for PR2484: add an SSE1 pattern for a shuffle we normally prefer to 
handle with an SSE2 instruction.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73760 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-19 07:00:55 +00:00
Evan Cheng
7a42b08be8 Should be using Bcc (average) latency to determine if-conversion threshold, not BL. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73759 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-19 06:56:26 +00:00
Eli Friedman
2fb070bf5a Minor cleanup; fixes review comments for a previous patch. Sorry for 
taking so long to get to this!



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73757 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-19 06:01:55 +00:00
Nick Lewycky
9683f18174 Teach jump threading to look at comparisons between phi nodes and non-constants. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73755 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-19 04:56:29 +00:00
Eli Friedman
aace4b1a2c Misc tweaks to Intel asm printing to make it more compatible with MASM. 
Patch by Benedict Gaster.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73753 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-19 04:48:38 +00:00
Chris Lattner
6a35b40250 Improve tail call elim to move loads above readonly calls 
when it allows forming a tail call.  Patch by Frits van
Bommel.  This implements PR4323.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73752 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-19 04:22:16 +00:00
Chris Lattner
849832c0fb part of PR4405: disable a contentious optimization for 
strcmp -> memcmp when the lengths of the strings are unknown.

Patch by Nick Lewycky!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73751 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-19 04:17:36 +00:00
Lang Hames
10382fb71d More VNInfo tweaking, plus a little progress on intra-block splitting. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73750 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-19 02:17:53 +00:00
Evan Cheng
974fe5d691 Transfer dead markers when a ldrd is changed into a ldm or a pair of ldr. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73749 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-19 01:59:04 +00:00
Evan Cheng
8557c2bcb8 Latency information for ARM v6. It's rough and not yet hooked up. Right now we are only using branch latency to determine if-conversion limits. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73747 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-19 01:51:50 +00:00
Eli Friedman
6b7bb42c36 Mark a few Thumb instructions commutable; just happened to spot this 
while experimenting.  I'm reasonably sure this is correct, but please 
tell me if these instructions have some strange property which makes this
change unsafe.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73746 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-19 01:43:08 +00:00
Chris Lattner
fadc83c699 add a file I missed, this goes with r73743 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73744 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-19 00:47:59 +00:00
Chris Lattner
475370b036 Add some scaffolding for a new experimental asmprinter 
implementation.  The idea is that we want asmprinting to
work by converting MachineInstrs into a new MCInst class,
then the per-instruction asmprinter works on MCInst.  MCInst
and the new asmprinters will not depend on most of the 
llvm code generators.  This allows building diassemblers
that don't link in the whole llvm code generator.  This is
step #1 of many.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73743 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-19 00:47:33 +00:00