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287cca11b3
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24161 Commits

Author SHA1 Message Date
Matthijs Kooijman
287cca11b3 Fix SRETPromotion, it was generating functions without returns statements since 
r53941 (but this was not noticed due to the lack of a basic test for
SRETPromotion). 

llvm-svn: 54467
 2008-08-07 15:58:09 +00:00
Matthijs Kooijman
9ff5c484cf Add some debug output to SRETPromotion. 
llvm-svn: 54464
 2008-08-07 15:14:04 +00:00
Anton Korobeynikov
212df90ce5 Remove dead forward decl 
llvm-svn: 54461
 2008-08-07 09:55:25 +00:00
Anton Korobeynikov
52d0ff92cc Print section flags ok on platforms, which use '@' as comment string. Fix test. 
llvm-svn: 54460
 2008-08-07 09:55:06 +00:00
Anton Korobeynikov
5fa19dc20a Add assertion for easy debugging of missing stuff 
llvm-svn: 54459
 2008-08-07 09:54:40 +00:00
Anton Korobeynikov
0c8d06f030 Switch ARM to new section handling stuff 
llvm-svn: 54458
 2008-08-07 09:54:23 +00:00
Anton Korobeynikov
b75c98436a Switch Alpha to new section handling stuff 
llvm-svn: 54457
 2008-08-07 09:53:57 +00:00
Anton Korobeynikov
61a8f92b2c Use EmitAlignment consistently 
llvm-svn: 54456
 2008-08-07 09:53:38 +00:00
Anton Korobeynikov
a7b288b4d8 Cleanup 
llvm-svn: 54455
 2008-08-07 09:53:13 +00:00
Anton Korobeynikov
bb99d4b900 Cleanup 
llvm-svn: 54454
 2008-08-07 09:52:54 +00:00
Anton Korobeynikov
2755fabf07 Switch IA64 to new section-handling stuff 
llvm-svn: 54453
 2008-08-07 09:52:35 +00:00
Anton Korobeynikov
9d8232ec1d Cleanup 
llvm-svn: 54452
 2008-08-07 09:52:13 +00:00
Anton Korobeynikov
d3009663dd Provide convenient helpers 
llvm-svn: 54451
 2008-08-07 09:51:54 +00:00
Anton Korobeynikov
912a2a8114 Switch Sparc to new section handling stuff. Refactor printing of module-level GVs significantly. 
llvm-svn: 54450
 2008-08-07 09:51:25 +00:00
Anton Korobeynikov
ebd773939c Add hook for constant pool section selection for darwin. 
llvm-svn: 54449
 2008-08-07 09:51:02 +00:00
Anton Korobeynikov
d37daa2aeb Select section for constant pool entries 
llvm-svn: 54448
 2008-08-07 09:50:34 +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
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
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
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
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
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
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
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
Owen Anderson
e9c3ae9fe4 Fix breakage on ARM/2008-04-10-ScavengerAssert.ll. 
llvm-svn: 54378
 2008-08-05 22:24:40 +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
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
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
Dan Gohman
de163bb39d Fix several const-correctness issues, resolving some -Wcast-qual warnings. 
llvm-svn: 54349
 2008-08-05 14:45:15 +00:00
Evan Cheng
1b731b8504 Remove #if 0. 
llvm-svn: 54347
 2008-08-05 07:20:57 +00:00
Evan Cheng
754148a2ec Fix PR2568: Fix bug that cause redudant kill marker after its live interval has been extended due to coalescing. 
llvm-svn: 54346
 2008-08-05 07:10:38 +00:00
Owen Anderson
7b5fe60440 Remove unneeded iteration. Thanks to Dan for the feedback. 
llvm-svn: 54337
 2008-08-05 00:30:10 +00:00