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724acf1c52
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24250 Commits

Author SHA1 Message Date
Owen Anderson
724acf1c52 Do a dominator walk when scheduling copies, rather than a DFS on the CFG. Also, fix a few problems when creating 
live intervals for temporaries created by phi elimination.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54483 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-07 18:28:07 +00:00
Matthijs Kooijman
7d942001fa Let SRETPromotion properly preserve the function name instead of (implicitly) 
postfixing it with a number.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54468 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-07 16:01:23 +00:00
Matthijs Kooijman
a7bab2c81c 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). 


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54467 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-07 15:58:09 +00:00
Matthijs Kooijman
81ec2486b3 Add some debug output to SRETPromotion. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54464 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-07 15:14:04 +00:00
Anton Korobeynikov
6a35daed6f Remove dead forward decl 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54461 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-07 09:55:25 +00:00
Anton Korobeynikov
feac94b18d Print section flags ok on platforms, which use '@' as comment string. Fix test. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54460 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-07 09:55:06 +00:00
Anton Korobeynikov
1e27da3e6c Add assertion for easy debugging of missing stuff 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54459 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-07 09:54:40 +00:00
Anton Korobeynikov
0f3cc65738 Switch ARM to new section handling stuff 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54458 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-07 09:54:23 +00:00
Anton Korobeynikov
79579c911f Switch Alpha to new section handling stuff 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54457 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-07 09:53:57 +00:00
Anton Korobeynikov
fcd99bb428 Use EmitAlignment consistently 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54456 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-07 09:53:38 +00:00
Anton Korobeynikov
2a166e9739 Cleanup 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54455 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-07 09:53:13 +00:00
Anton Korobeynikov
98a6dd0cf5 Cleanup 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54454 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-07 09:52:54 +00:00
Anton Korobeynikov
dc3ca2ec3c Switch IA64 to new section-handling stuff 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54453 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-07 09:52:35 +00:00
Anton Korobeynikov
003bcab8f3 Cleanup 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54452 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-07 09:52:13 +00:00
Anton Korobeynikov
4578862dcc Provide convenient helpers 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54451 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-07 09:51:54 +00:00
Anton Korobeynikov
5b794b98ce Switch Sparc to new section handling stuff. Refactor printing of module-level GVs significantly. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54450 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-07 09:51:25 +00:00
Anton Korobeynikov
84e160e265 Add hook for constant pool section selection for darwin. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54449 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-07 09:51:02 +00:00
Anton Korobeynikov
93cacf131d Select section for constant pool entries 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54448 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-07 09:50:34 +00:00
Chris Lattner
e2c5ecd46a Don't verify passes when assertions are disabled. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54446 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-07 07:34:50 +00:00
Dan Gohman
e3d920699c 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54444 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-07 02:54:50 +00:00
Dale Johannesen
dd947ea3c5 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.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54442 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-07 01:30:15 +00:00
Evan Cheng
39fd6e81b1 Factor code that finalize PHI nodes, jump tables, etc. out of SelectBasicBlock. No functionality changes. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54438 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-07 00:43:25 +00:00
Owen Anderson
9200e81a18 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54432 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-06 23:16:52 +00:00
Owen Anderson
883771f86a 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54426 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-06 22:08:58 +00:00
Owen Anderson
aa111080df Oops, didn't mean to commit this. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54425 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-06 20:58:38 +00:00
Owen Anderson
9860b71b6a We don't need to try to coalesce input vregs that are the same as the output vreg. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54422 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-06 20:29:20 +00:00
Owen Anderson
9b49120408 Only trim a live interval if the register is not used after the PHI node. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54421 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-06 18:36:17 +00:00
Owen Anderson
788d04152a Only remap each VNInfo once when doing renumbering. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54420 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-06 18:35:45 +00:00
Dan Gohman
8a1510d192 Re-introduce the 8-bit subreg zext-inreg patterns for x86-32, 
this time using MOV32to32_ and MOV16to16_. Thanks to Evan for
suggesting this.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54418 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-06 18:27:21 +00:00
Dan Gohman
4ce9627e97 Fix a shufflevector instcombine that was emitting invalid masks indices 
when it meant to be emitting undef indices.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54417 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-06 18:17:32 +00:00
Evan Cheng
f5e25f32c7 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. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54415 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-06 18:04:43 +00:00
Dan Gohman
165660e417 xchg does not modify FLAGS. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54411 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-06 15:52:50 +00:00
Chris Lattner
46bbad217b optimize a common idiom generated by clang for bitfield access, PR2638. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54408 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-06 07:35:52 +00:00
Bruno Cardoso Lopes
bbe51362d5 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54403 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-06 06:14:43 +00:00
Chris Lattner
5af5f463e1 Zap sitofp/fptoui pairs. In all cases when the sign difference 
matters, the result is undefined anyway.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54396 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-06 05:13:06 +00:00
Nick Lewycky
b30591ec64 Reinstate this optimization, but without the miscompile. Thanks to Bill for 
tracking down that this was breaking llvm-gcc bootstrap on Linux.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54394 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-06 04:54:03 +00:00
Dan Gohman
1eac4e0844 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54385 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-05 23:36:35 +00:00
Dan Gohman
5a6c448a7e Pass the computed iteration count value to RewriteLoopExitValues 
instead of having it call getIterationCount again.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54380 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-05 22:34:21 +00:00
Owen Anderson
24d79ba2ef Fix breakage on ARM/2008-04-10-ScavengerAssert.ll. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54378 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-05 22:24:40 +00:00
Evan Cheng
e9d5035838 Fix PR2620: Fix X86cmppd selection code so it expects operands to be v2f64. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54376 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-05 22:19:15 +00:00
Evan Cheng
e3b8a48d32 Fix PR2596: out of bound reference. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54375 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-05 21:51:46 +00:00
Owen Anderson
5d2f8072d4 Correctly handle replacement and removal of PHIs with one incoming register. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54374 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-05 21:40:45 +00:00
Bill Wendling
021507be82 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54372 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-05 21:23:45 +00:00
Owen Anderson
71ac0be6bb Oops, we were already checking for dead phis. Handle this the proper way, then. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54371 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-05 21:18:51 +00:00
Owen Anderson
e7b8205e6e We don't need to update live intervals for dead PHIs. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54369 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-05 20:51:26 +00:00
Owen Anderson
3bc9c6f3e7 Remove the -disable-correct-folding option, which was ugly and is no longer needed. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54361 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-05 18:27:54 +00:00
Dan Gohman
c3be0fd8c3 Fix the AsmWriter to not print extra spaces after parameter attributes. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54351 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-05 15:51:44 +00:00
Dan Gohman
8f613f30a7 Trim #includes. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54350 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-05 15:32:23 +00:00
Dan Gohman
430b8a22e2 Fix several const-correctness issues, resolving some -Wcast-qual warnings. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54349 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-05 14:45:15 +00:00
Evan Cheng
4fa393aae1 Remove #if 0. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54347 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-05 07:20:57 +00:00