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* Fix test case.Evan Cheng2006-10-231-6/+3
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31127 91177308-0d34-0410-b5e6-96231b3b80d8
* Remove the Backwards operation. Resolving now works at the time when aNick Lewycky2006-10-231-90/+102
| | | | | | | | property is added by running through the list of uses of the value and adding resolved properties to the property set. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31126 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix phi node updating for switches lowered to linear sequences of branches.Chris Lattner2006-10-221-1/+13
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* disable this code for now, it's not yet safely updating phi nodesChris Lattner2006-10-221-3/+3
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* Fix similar missing optimization opportunity in XOR.Nick Lewycky2006-10-221-13/+22
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* this part implemented.Chris Lattner2006-10-221-29/+0
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* Whoops! Add missing NULL check.Nick Lewycky2006-10-221-0/+1
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* Do section switching right way for Mingw\Cygwin and Linux.Anton Korobeynikov2006-10-221-4/+10
| | | | | | | | This will allow (after llvm-gcc linkage fix) more dummy tests using libstdc++ to pass on mingw :) git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31120 91177308-0d34-0410-b5e6-96231b3b80d8
* Implement PR964 and Regression/CodeGen/Generic/SwitchLowering.llChris Lattner2006-10-221-5/+44
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* Handle "if ((x|y) != 0)" for ints like we do for bools. Fixes missedNick Lewycky2006-10-222-10/+34
| | | | | | | optimization opportunity pointed out by Chris Lattner. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31118 91177308-0d34-0410-b5e6-96231b3b80d8
* new testcase for PR964Chris Lattner2006-10-221-0/+27
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* AllocaInst can't return a null pointer. Fixes missed optimizationNick Lewycky2006-10-222-1/+22
| | | | | | | opportunity pointed out by Andrew Lewycky. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31115 91177308-0d34-0410-b5e6-96231b3b80d8
* Add a workaround for PR962, disabling the more aggressive form of thisChris Lattner2006-10-221-0/+8
| | | | | | | transformation. This speeds up a C++ app 2.25x. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31113 91177308-0d34-0410-b5e6-96231b3b80d8
* Don't generate a prototype for _setjmp. At least on Linux, this functionReid Spencer2006-10-222-4/+4
| | | | | | | | | has a different prototype than the one #included from <setjmp.h>. This patch fixes siod and a number of other test cases on Linux that were failing the CBE because of this _setjmp issue. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31112 91177308-0d34-0410-b5e6-96231b3b80d8
* Regenerate.Reid Spencer2006-10-223-2885/+3870
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* Remove unneeded CHECK_FOR_ERROR invocations.Reid Spencer2006-10-221-2/+0
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* regenerateChris Lattner2006-10-225-4288/+3300
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* change keyword to datalayoutChris Lattner2006-10-222-3/+3
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* Change keyword to datalayoutChris Lattner2006-10-221-1/+1
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* 3 Changes:Chris Lattner2006-10-221-24/+35
| | | | | | | | | | | 1. Better document what is going on here. 2. Only hack on one branch per iteration, making the results less conservative. 3. Handle the problematic case by marking edges executable instead of by playing with value lattice states. This is far less pessimistic, and fixes SCCP/ipsccp-gvar.ll. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31106 91177308-0d34-0410-b5e6-96231b3b80d8
* New, wonderful isSuccessor methodChris Lattner2006-10-211-12/+21
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* don't break infinite loopsChris Lattner2006-10-211-6/+19
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* Implement support for branch reversal, fix a bug in branch analysis.Chris Lattner2006-10-211-2/+5
| | | | | | | | | | | | | | | | | This provides stuff like: cmpw cr0, r15, r29 mr r14, r15 - bge cr0, LBB3_111 ;bb656 - b LBB3_90 ;bb501 + blt cr0, LBB3_90 ;bb501 LBB3_111: ;bb656 lwz r18, 68(r1) which is particularly good for dispatch group formation. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31101 91177308-0d34-0410-b5e6-96231b3b80d8
* Use branch reversal to do stuff like this:Chris Lattner2006-10-211-0/+14
| | | | | | | | | | | | | | | | | | | | | | | | | | | call L_strcmp$stub testl %eax, %eax - jne LBB26_208 #cond_true6020 - jmp LBB26_227 #bb7119 + je LBB26_227 #bb7119 LBB26_208: #cond_true6020 movl $l31_str14, 4(%esp) testl %eax, %eax - jne LBB26_704 #cond_true13042 - jmp LBB26_713 #bb13151 + je LBB26_713 #bb13151 LBB26_704: #cond_true13042 movl $_str52, 4(%esp) cmpl 76(%ecx), %eax - jge LBB26_1628 #cond_false63.i.i - jmp LBB26_1769 #_Z8makeGridP13mrSurfaceListidiidd.exit.i + jl LBB26_1769 #_Z8makeGridP13mrSurfaceListidiidd.exit.i LBB26_1628: #cond_false63.i.i movl $0, 48964(%esp) git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31100 91177308-0d34-0410-b5e6-96231b3b80d8
* Implement support for branch condition reversal.Chris Lattner2006-10-212-2/+33
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* Transform code like:Chris Lattner2006-10-211-2/+13
| | | | | | | | | | | | | | | | jle FOO jmp BAR BAR: into: jle FOO BAR: ... whoa! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31098 91177308-0d34-0410-b5e6-96231b3b80d8
* Simplify code, no functionality changeChris Lattner2006-10-212-8/+4
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* implement support for inserting a cond branchChris Lattner2006-10-211-4/+8
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* allow insertion of a conditional branch with fall-throughChris Lattner2006-10-211-6/+12
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* Three changes:Chris Lattner2006-10-211-117/+117
| | | | | | | | | | | | | 1. Remove a bunch of ifdef'd code. 2. When a block just contains an uncond branch, change all blocks branching to it to jump to the destination instead. 3. If branch analysis tells us some edges in the machinecfg are not actually possible, remove them. #2 triggers a suprisingly large number of times. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31094 91177308-0d34-0410-b5e6-96231b3b80d8
* update assert messageChris Lattner2006-10-211-1/+1
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* Add an experimental cross-jumping implementation.Chris Lattner2006-10-211-13/+231
| | | | | | | | This is currently disabled by default and limited in several ways, but does have a positive effect. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31090 91177308-0d34-0410-b5e6-96231b3b80d8
* typoChris Lattner2006-10-201-1/+1
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* implement MachineOperand::isIdenticalToChris Lattner2006-10-201-0/+29
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* add isIdenticalTo method to machineinstr/operand.Chris Lattner2006-10-201-0/+19
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* llvm-extract should remove module-level asmChris Lattner2006-10-201-3/+3
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* bugfixChris Lattner2006-10-201-1/+1
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* Fix an ugly problem in SCCP. This fixes Benchmarks/Misc-C++/mandel-text.cppChris Lattner2006-10-201-2/+3
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* Fix miscompilation of MallocBench/espresso which code review pointed outChris Lattner2006-10-201-1/+1
| | | | | | | but apparently didn't make it into the final patch. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31070 91177308-0d34-0410-b5e6-96231b3b80d8
* Changed the pattern matching so that it will hopefully work on Linux.Bill Wendling2006-10-201-1/+1
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* Test case forDevang Patel2006-10-201-0/+8
| | | | | | | http://lists.cs.uiuc.edu/pipermail/llvm-commits/Week-of-Mon-20061016/038780.html git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31068 91177308-0d34-0410-b5e6-96231b3b80d8
* Make flag and chain edges visually distinguishable from value edges in DOTChris Lattner2006-10-201-1/+16
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* add methodChris Lattner2006-10-201-2/+11
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* Implement branch analysis/xform hooks required by the branch folding pass.Chris Lattner2006-10-204-87/+229
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* Fix a comment to be accurate.Reid Spencer2006-10-201-4/+4
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* For PR950:Reid Spencer2006-10-2070-4082/+5035
| | | | | | | | | This patch implements the first increment for the Signless Types feature. All changes pertain to removing the ConstantSInt and ConstantUInt classes in favor of just using ConstantInt. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31063 91177308-0d34-0410-b5e6-96231b3b80d8
* While creating mask, use 1ULL instead of 1.Devang Patel2006-10-201-1/+1
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* Fix SimplifyCFG/2006-10-19-UncondDiv.ll by disabling a bad xform.Chris Lattner2006-10-201-23/+40
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* new testcase for PR957Chris Lattner2006-10-201-0/+35
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* add a method to determine whether evaluation of a constant can trap.Chris Lattner2006-10-202-0/+31
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