David Majnemer c22a4eeec6 InstCombine: FoldGEPICmp shouldn't change sign of base pointer comparison ... Changing the sign when comparing the base pointer would introduce all sorts of unexpected things like: %gep.i = getelementptr inbounds [1 x i8]* %a, i32 0, i32 0 %gep2.i = getelementptr inbounds [1 x i8]* %b, i32 0, i32 0 %cmp.i = icmp ult i8* %gep.i, %gep2.i %cmp.i1 = icmp ult [1 x i8]* %a, %b %cmp = icmp ne i1 %cmp.i, %cmp.i1 ret i1 %cmp into: %cmp.i = icmp slt [1 x i8]* %a, %b %cmp.i1 = icmp ult [1 x i8]* %a, %b %cmp = xor i1 %cmp.i, %cmp.i1 ret i1 %cmp By preserving the original sign, we now get: ret i1 false This fixes PR16483. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@185259 91177308-0d34-0410-b5e6-96231b3b80d8		2013-06-29 10:28:04 +00:00
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InstCombine	InstCombine: FoldGEPICmp shouldn't change sign of base pointer comparison	2013-06-29 10:28:04 +00:00
Instrumentation	Remove needless include (unistd.h) in DebugIR pass	2013-06-28 19:19:44 +00:00
IPO	Debug Info: clean up usage of Verify.	2013-06-28 05:43:10 +00:00
ObjCARC	[objc-arc-opts] Make IsTrackingImpreciseReleases a const method.	2013-06-21 20:52:49 +00:00
Scalar	dbgs() << Instruction doesn't print a newline on the end any more. Update these	2013-06-26 00:30:18 +00:00
Utils	Debug Info: clean up usage of Verify.	2013-06-28 05:43:10 +00:00
Vectorize	We preserve the CFG and some of the analysis passes.	2013-06-29 05:38:15 +00:00
CMakeLists.txt	Extracted ObjCARC.cpp into its own library libLLVMObjCARCOpts in preparation for refactoring the ARC Optimizer.	2013-01-28 01:35:51 +00:00
LLVMBuild.txt	Extracted ObjCARC.cpp into its own library libLLVMObjCARCOpts in preparation for refactoring the ARC Optimizer.	2013-01-28 01:35:51 +00:00
Makefile	Extracted ObjCARC.cpp into its own library libLLVMObjCARCOpts in preparation for refactoring the ARC Optimizer.	2013-01-28 01:35:51 +00:00