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Author SHA1 Message Date
Matthijs Kooijman
7f69239612 Remove trailing spaces. 
llvm-svn: 54447
 2008-08-07 09:00:46 +00:00
Chris Lattner
863d710738 Don't verify passes when assertions are disabled. 
llvm-svn: 54446
 2008-08-07 07:34:50 +00:00
Dan Gohman
74fa421281 Re-enable elimination of unnecessary SUBREG_TO_REG instructions in 
LowerSubregs, and fix an x86-64 isel bug that this exposed.

SUBREG_TO_REG for x86-64 implicit zero extension is only safe for
isel to generate when the source is known to always have zeros in
the high 32 bits. The EXTRACT_SUBREG instruction does not clear
the high 32 bits.

llvm-svn: 54444
 2008-08-07 02:54:50 +00:00
Dan Gohman
1674a7c2f3 Add an extra example that shouldn't get an and instruction. 
llvm-svn: 54443
 2008-08-07 02:23:06 +00:00
Dale Johannesen
a4de0fa539 Rewrite JIT handling of GlobalVariables so they 
are allocated in the same buffer as the code,
jump tables, etc.

The default JIT memory manager does not handle buffer
overflow well.  I didn't introduce this and I'm not
attempting to fix it here, but it is more likely to
be hit now since we're putting more stuff in the
buffer.  This affects one test that I know of so far,
MultiSource/Benchmarks/NPB-serial/is.

llvm-svn: 54442
 2008-08-07 01:30:15 +00:00
Evan Cheng
f8a801a9b8 Factor code that finalize PHI nodes, jump tables, etc. out of SelectBasicBlock. No functionality changes. 
llvm-svn: 54438
 2008-08-07 00:43:25 +00:00
Owen Anderson
2975ced4df SDISel's constant branch folding can fold away self-loops, which doesn't result in any dead blocks, but 
rather an incorrect phi input.  Add code to UnreachableMachineBlockElim to get rid of these entries.

llvm-svn: 54432
 2008-08-06 23:16:52 +00:00
Owen Anderson
655eb1a3bc Correct handle cases where two phis are coalesced together, and correct break up the case where two different 
phis want to coalesce with the same vreg.

llvm-svn: 54426
 2008-08-06 22:08:58 +00:00
Owen Anderson
33cf898dff Oops, didn't mean to commit this. 
llvm-svn: 54425
 2008-08-06 20:58:38 +00:00
Ted Kremenek
58049cc4a9 Add libDriver.vcproj to solution file. 
llvm-svn: 54424
 2008-08-06 20:57:07 +00:00
Owen Anderson
5929d57f67 We don't need to try to coalesce input vregs that are the same as the output vreg. 
llvm-svn: 54422
 2008-08-06 20:29:20 +00:00
Owen Anderson
482d679301 Only trim a live interval if the register is not used after the PHI node. 
llvm-svn: 54421
 2008-08-06 18:36:17 +00:00
Owen Anderson
e95b75bed2 Only remap each VNInfo once when doing renumbering. 
llvm-svn: 54420
 2008-08-06 18:35:45 +00:00
Dan Gohman
cc784f1662 Re-introduce the 8-bit subreg zext-inreg patterns for x86-32, 
this time using MOV32to32_ and MOV16to16_. Thanks to Evan for
suggesting this.

llvm-svn: 54418
 2008-08-06 18:27:21 +00:00
Dan Gohman
4ad77e1ca2 Fix a shufflevector instcombine that was emitting invalid masks indices 
when it meant to be emitting undef indices.

llvm-svn: 54417
 2008-08-06 18:17:32 +00:00
Evan Cheng
cbb33fb6e8 PR2535, not PR2355. 
llvm-svn: 54416
 2008-08-06 18:06:48 +00:00
Evan Cheng
c5cc2cb4aa Fix PR2355: bug in ChangeCompareStride. When the loop termination compare is the only use of its iv stride, the stride can be eliminated by moving it to another stride. If the scale is negative, swap the predicate instead of using a inverse predicate. 
llvm-svn: 54415
 2008-08-06 18:04:43 +00:00
Dan Gohman
99d70043f9 xchg does not modify FLAGS. 
llvm-svn: 54411
 2008-08-06 15:52:50 +00:00
Dan Gohman
680de089b7 Clarify "node" vs. "value" in some comments. 
llvm-svn: 54409
 2008-08-06 15:18:10 +00:00
Chris Lattner
55b99a6739 optimize a common idiom generated by clang for bitfield access, PR2638. 
llvm-svn: 54408
 2008-08-06 07:35:52 +00:00
Bruno Cardoso Lopes
fa0a8e3e2b Added support for fp callee saved registers. 
Added fp register clobbering during calls.
Added AsmPrinter support for "fmask", a bitmask that indicates where on the 
stack the fp callee saved registers are.

Fixed the stack frame layout for Mips, now the callee saved regs 
are in the right stack location (a little documentation about how this
stack frame must look like is present in MipsRegisterInfo.cpp).
This was done using the method MipsRegisterInfo::adjustMipsStackFrame
To be more clear, these are examples of what is solves :  

1) FP and RA are also callee saved, and despite they aren't in CSI they 
   must be saved before the fp callee saved registers. 
2) The ABI requires that local varibles are allocated before the callee 
   saved register area, the opposite behavior from the default allocation.
3) CPU and FPU saved register area must be aligned independent of each
   other.

llvm-svn: 54403
 2008-08-06 06:14:43 +00:00
Chris Lattner
fba89ee08e stacker is really gone. 
llvm-svn: 54400
 2008-08-06 05:57:58 +00:00
Chris Lattner
127375e0ed remove stacker 
llvm-svn: 54398
 2008-08-06 05:56:52 +00:00
Chris Lattner
cae04940bd Zap sitofp/fptoui pairs. In all cases when the sign difference 
matters, the result is undefined anyway.

llvm-svn: 54396
 2008-08-06 05:13:06 +00:00
Nick Lewycky
0bf3c812d2 Reinstate this optimization, but without the miscompile. Thanks to Bill for 
tracking down that this was breaking llvm-gcc bootstrap on Linux.

llvm-svn: 54394
 2008-08-06 04:54:03 +00:00
Bill Wendling
1854852a75 Just grep for through the LL code instead of the ASM code 
llvm-svn: 54389
 2008-08-06 00:10:32 +00:00
Bill Wendling
cff4a97a86 Add ARM to the targets to build. 
llvm-svn: 54386
 2008-08-05 23:52:28 +00:00
Dan Gohman
3e389ed424 Use strcpy instead of sprintf here. This avoids a GCC 4.3 format-string 
warning. There wasn't actually a problem here, because the contents of
the string are known.

llvm-svn: 54385
 2008-08-05 23:36:35 +00:00
Bill Wendling
aea14c2dfe Add default architecture. 
llvm-svn: 54384
 2008-08-05 23:36:00 +00:00
Dan Gohman
8377e7019f Pass the computed iteration count value to RewriteLoopExitValues 
instead of having it call getIterationCount again.

llvm-svn: 54380
 2008-08-05 22:34:21 +00:00
Bill Wendling
b120b02f4d It's "a static", not "an static" 
llvm-svn: 54379
 2008-08-05 22:29:16 +00:00
Owen Anderson
e9c3ae9fe4 Fix breakage on ARM/2008-04-10-ScavengerAssert.ll. 
llvm-svn: 54378
 2008-08-05 22:24:40 +00:00
Bill Wendling
f69c83e554 Testcase for PR2629. 
llvm-svn: 54377
 2008-08-05 22:23:59 +00:00
Evan Cheng
f4d1119fbd Fix PR2620: Fix X86cmppd selection code so it expects operands to be v2f64. 
llvm-svn: 54376
 2008-08-05 22:19:15 +00:00
Evan Cheng
a07795a0c3 Fix PR2596: out of bound reference. 
llvm-svn: 54375
 2008-08-05 21:51:46 +00:00
Owen Anderson
acd5487eb9 Correctly handle replacement and removal of PHIs with one incoming register. 
llvm-svn: 54374
 2008-08-05 21:40:45 +00:00
Bill Wendling
3882f060ef Revert r53282. This was causing a miscompile on Linux. Also, the transformation 
looks bogus. Please see PR2629 for details on why this is breaking things.

llvm-svn: 54372
 2008-08-05 21:23:45 +00:00
Owen Anderson
11731063b9 Oops, we were already checking for dead phis. Handle this the proper way, then. 
llvm-svn: 54371
 2008-08-05 21:18:51 +00:00
Owen Anderson
dacdf44612 We don't need to update live intervals for dead PHIs. 
llvm-svn: 54369
 2008-08-05 20:51:26 +00:00
Chris Lattner
ffc6ce44a7 Expand acronyms, suggested by Walter Pawley 
llvm-svn: 54362
 2008-08-05 18:29:16 +00:00
Owen Anderson
667d9c95c2 Remove the -disable-correct-folding option, which was ugly and is no longer needed. 
llvm-svn: 54361
 2008-08-05 18:27:54 +00:00
Chris Lattner
0ad96be1be Capitalize LLVM, suggested by Walt Pawley 
llvm-svn: 54360
 2008-08-05 18:21:08 +00:00
Owen Anderson
d1185e4da3 Update the remaining tests not to use -disable-correct-folding, and remove two 
that couldn't be updated.

llvm-svn: 54359
 2008-08-05 18:19:14 +00:00
Owen Anderson
117b0e405d One more -disable-correct-folding case removed. 
llvm-svn: 54358
 2008-08-05 18:08:56 +00:00
Owen Anderson
c5fd801d85 Remove another -disable-correct-folding use. 
llvm-svn: 54357
 2008-08-05 18:05:58 +00:00
Owen Anderson
f845ea8d52 Eliminate another use of -disable-correct-folding. 
llvm-svn: 54356
 2008-08-05 18:03:01 +00:00
Owen Anderson
4c7ea0c270 This check is unnecessary, and getting rid of it removes a use of -disable-correct-folding. 
llvm-svn: 54355
 2008-08-05 17:52:54 +00:00
Owen Anderson
7fca48d0bd Remove the need for -disable-correct-folding from this test. 
llvm-svn: 54354
 2008-08-05 17:49:52 +00:00
Dan Gohman
51a5eb52c5 Fix the AsmWriter to not print extra spaces after parameter attributes. 
llvm-svn: 54351
 2008-08-05 15:51:44 +00:00
Dan Gohman
1238bf634b Trim #includes. 
llvm-svn: 54350
 2008-08-05 15:32:23 +00:00