Erik Verbruggen cf5240642b GVN: merge overflow intrinsics with non-overflow instructions. ... When an overflow intrinsic is followed by a non-overflow instruction, replace the latter with an extract. For example: %sadd = tail call { i32, i1 } @llvm.sadd.with.overflow.i32(i32 %a, i32 %b) %sadd3 = add i32 %a, %b Here the add statement will be replaced by an extract. When an overflow intrinsic follows a non-overflow instruction, a clone of the intrinsic is inserted before the normal instruction, which makes it the same as the previous case. Subsequent runs of GVN can then clean up the duplicate instructions and insert the extract. This fixes PR8817. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@203553 91177308-0d34-0410-b5e6-96231b3b80d8		2014-03-11 09:36:48 +00:00
..
ADCE.cpp	[C++11] Add 'override' keyword to virtual methods that override their base class.	2014-03-05 09:10:37 +00:00
CMakeLists.txt	[CodeGenPrepare] Move CodeGenPrepare into lib/CodeGen.	2014-02-22 00:07:45 +00:00
ConstantHoisting.cpp	[C++11] Add range based accessors for the Use-Def chain of a Value.	2014-03-09 03:16:01 +00:00
ConstantProp.cpp	[C++11] Add range based accessors for the Use-Def chain of a Value.	2014-03-09 03:16:01 +00:00
CorrelatedValuePropagation.cpp	[C++11] Add 'override' keyword to virtual methods that override their base class.	2014-03-05 09:10:37 +00:00
DCE.cpp	[C++11] Add 'override' keyword to virtual methods that override their base class.	2014-03-05 09:10:37 +00:00
DeadStoreElimination.cpp	[C++11] Add 'override' keyword to virtual methods that override their base class.	2014-03-05 09:10:37 +00:00
EarlyCSE.cpp	[C++11] Add 'override' keyword to virtual methods that override their base class.	2014-03-05 09:10:37 +00:00
FlattenCFGPass.cpp	[C++11] Add 'override' keyword to virtual methods that override their base class.	2014-03-05 09:10:37 +00:00
GlobalMerge.cpp	[C++11] Add 'override' keyword to virtual methods that override their base class.	2014-03-05 09:10:37 +00:00
GVN.cpp	GVN: merge overflow intrinsics with non-overflow instructions.	2014-03-11 09:36:48 +00:00
IndVarSimplify.cpp	[C++11] Add range based accessors for the Use-Def chain of a Value.	2014-03-09 03:16:01 +00:00
JumpThreading.cpp	[C++11] Add range based accessors for the Use-Def chain of a Value.	2014-03-09 03:16:01 +00:00
LICM.cpp	[C++11] Add range based accessors for the Use-Def chain of a Value.	2014-03-09 03:16:01 +00:00
LLVMBuild.txt	Add proper dependencies to LLVMBuild.txt in llvm/lib.	2013-12-10 05:39:34 +00:00
LoopDeletion.cpp	[C++11] Add 'override' keyword to virtual methods that override their base class.	2014-03-05 09:10:37 +00:00
LoopIdiomRecognize.cpp	[C++11] Add range based accessors for the Use-Def chain of a Value.	2014-03-09 03:16:01 +00:00
LoopInstSimplify.cpp	[C++11] Add range based accessors for the Use-Def chain of a Value.	2014-03-09 03:16:01 +00:00
LoopRerollPass.cpp	[C++11] Add range based accessors for the Use-Def chain of a Value.	2014-03-09 03:16:01 +00:00
LoopRotation.cpp	[C++11] Add range based accessors for the Use-Def chain of a Value.	2014-03-09 03:16:01 +00:00
LoopStrengthReduce.cpp	[C++11] Add range based accessors for the Use-Def chain of a Value.	2014-03-09 03:16:01 +00:00
LoopUnrollPass.cpp	[C++11] Add 'override' keyword to virtual methods that override their base class.	2014-03-05 09:10:37 +00:00
LoopUnswitch.cpp	[C++11] Add range based accessors for the Use-Def chain of a Value.	2014-03-09 03:16:01 +00:00
LowerAtomic.cpp	[C++11] Add 'override' keyword to virtual methods that override their base class.	2014-03-05 09:10:37 +00:00
Makefile
MemCpyOptimizer.cpp	MemCpyOpt: When merging memsets also merge the trivial case of two memsets with the same destination.	2014-03-10 21:05:13 +00:00
PartiallyInlineLibCalls.cpp	[C++11] Add 'override' keyword to virtual methods that override their base class.	2014-03-05 09:10:37 +00:00
Reassociate.cpp	[C++11] Add range based accessors for the Use-Def chain of a Value.	2014-03-09 03:16:01 +00:00
Reg2Mem.cpp	[C++11] Add range based accessors for the Use-Def chain of a Value.	2014-03-09 03:16:01 +00:00
SampleProfile.cpp	Use discriminator information in sample profiles.	2014-03-10 22:41:28 +00:00
Scalar.cpp	[CodeGenPrepare] Move CodeGenPrepare into lib/CodeGen.	2014-02-22 00:07:45 +00:00
Scalarizer.cpp	[Layering] Move InstVisitor.h into the IR library as it is pretty	2014-03-06 03:23:41 +00:00
ScalarReplAggregates.cpp	[C++11] Add range based accessors for the Use-Def chain of a Value.	2014-03-09 03:16:01 +00:00
SCCP.cpp	[C++11] Add range based accessors for the Use-Def chain of a Value.	2014-03-09 03:16:01 +00:00
SimplifyCFGPass.cpp	[C++11] Add 'override' keyword to virtual methods that override their base class.	2014-03-05 09:10:37 +00:00
Sink.cpp	[C++11] Add range based accessors for the Use-Def chain of a Value.	2014-03-09 03:16:01 +00:00
SROA.cpp	[C++11] Add range based accessors for the Use-Def chain of a Value.	2014-03-09 03:16:01 +00:00
StructurizeCFG.cpp	[C++11] Add range based accessors for the Use-Def chain of a Value.	2014-03-09 03:16:01 +00:00
TailRecursionElimination.cpp	[C++11] Add range based accessors for the Use-Def chain of a Value.	2014-03-09 03:16:01 +00:00