Louis Gerbarg a5423f2598 Add support for combining GEPs across PHI nodes ... Currently LLVM will generally merge GEPs. This allows backends to use more complex addressing modes. In some cases this is not happening because there is PHI inbetween the two GEPs: GEP1--\ |-->PHI1-->GEP3 GEP2--/ This patch checks to see if GEP1 and GEP2 are similiar enough that they can be cloned (GEP12) in GEP3's BB, allowing GEP->GEP merging (GEP123): GEP1--\ --\ --\ |-->PHI1-->GEP3 ==> |-->PHI2->GEP12->GEP3 == > |-->PHI2->GEP123 GEP2--/ --/ --/ This also breaks certain use chains that are preventing GEP->GEP merges that the the existing instcombine would merge otherwise. Tests included. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@209755 91177308-0d34-0410-b5e6-96231b3b80d8		2014-05-28 17:38:31 +00:00
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Hello	[Modules] Fix potential ODR violations by sinking the DEBUG_TYPE	2014-04-22 02:55:47 +00:00
InstCombine	Add support for combining GEPs across PHI nodes	2014-05-28 17:38:31 +00:00
Instrumentation	[asancov] Don't emit extra runtime calls when compiling without coverage.	2014-05-28 09:26:46 +00:00
IPO	Add an extension point for peephole optimizers.	2014-05-25 10:27:02 +00:00
ObjCARC	Add comdat key field to llvm.global_ctors and llvm.global_dtors	2014-05-16 20:39:27 +00:00
Scalar	Distribute sext/zext to the operands of and/or/xor	2014-05-27 18:00:00 +00:00
Utils	Add support for missed and analysis optimization remarks.	2014-05-22 14:19:46 +00:00
Vectorize	Add support for missed and analysis optimization remarks.	2014-05-22 14:19:46 +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