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path: root/llvm/lib/Transforms/Utils/SimplifyInstructions.cpp
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* Make MemoryBuiltins aware of TargetLibraryInfo.Benjamin Kramer2012-08-291-1/+1
| | | | | | | | | | | | | | | | This disables malloc-specific optimization when -fno-builtin (or -ffreestanding) is specified. This has been a problem for a long time but became more severe with the recent memory builtin improvements. Since the memory builtin functions are used everywhere, this required passing TLI in many places. This means that functions that now have an optional TLI argument, like RecursivelyDeleteTriviallyDeadFunctions, won't remove dead mallocs anymore if the TLI argument is missing. I've updated most passes to do the right thing. Fixes PR13694 and probably others. llvm-svn: 162841
* Propagate TargetLibraryInfo throughout ConstantFolding.cpp and Chad Rosier2011-12-011-3/+9
| | | | | | | InstructionSimplify.cpp. Other fixups as needed. Part of rdar://10500969 llvm-svn: 145559
* Speed up instsimplify by about 10-15% by not bothering to retryDuncan Sands2011-01-031-8/+19
| | | | | | | InstructionSimplify on instructions that didn't change since the last time round the loop. llvm-svn: 122745
* Simplify this pass by using a depth-first iterator to ensure that allDuncan Sands2010-12-311-39/+20
| | | | | | operands are visited before the instructions themselves. llvm-svn: 122647
* Zap dead instructions harder.Duncan Sands2010-12-311-7/+2
| | | | llvm-svn: 122645
* Visit instructions deterministically. Use a FIFO so as to approximatelyDuncan Sands2010-12-211-11/+21
| | | | | | | visit instructions before their uses, since InstructionSimplify does a better job in that case. All this prompted by Frits van Bommel. llvm-svn: 122343
* If an instruction simplifies, try again to simplify any uses of it. This isDuncan Sands2010-12-211-4/+32
| | | | | | | not very important since the pass is only used for testing, but it does make it more realistic. Suggested by Frits van Bommel. llvm-svn: 122336
* Oops, forgot to add the pass itself!Duncan Sands2010-12-201-0/+69
llvm-svn: 122265
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