Louis Gerbarg 78874456fc 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@209843 91177308-0d34-0410-b5e6-96231b3b80d8		2014-05-29 20:29:47 +00:00
..
Analysis	implement missing SCEVDivision case	2014-05-29 19:44:09 +00:00
AsmParser	[pr19844] Add thread local mode to aliases.	2014-05-28 18:15:43 +00:00
Bitcode	[pr19844] Add thread local mode to aliases.	2014-05-28 18:15:43 +00:00
CodeGen	Debug Info: Remove unused code. The MInsn of an _abstract_ variable is	2014-05-29 16:56:48 +00:00
DebugInfo	[modules] Add module maps for LLVM. These are not quite ready for prime-time	2014-05-21 02:46:14 +00:00
ExecutionEngine	AArch64/ARM64: move ARM64 into AArch64's place	2014-05-24 12:50:23 +00:00
IR	[pr19844] Add thread local mode to aliases.	2014-05-28 18:15:43 +00:00
IRReader	[C++11] More 'nullptr' conversion. In some cases just using a boolean check instead of comparing to nullptr.	2014-04-15 06:32:26 +00:00
LineEditor	[CMake] Use LINK_LIBS instead of target_link_libraries().	2014-02-26 06:41:29 +00:00
Linker	Use create methods since msvc doesn't handle delegating constructors.	2014-05-17 21:29:57 +00:00
LTO	AArch64/ARM64: move ARM64 into AArch64's place	2014-05-24 12:50:23 +00:00
MC	[mips][mips64r6] Add Relocations R_MIPS_PCHI16, R_MIPS_PCLO16	2014-05-27 14:58:51 +00:00
Object	[elf2yaml][ELF] Move Info field to the RelocationSection structure. This	2014-05-29 11:05:31 +00:00
Option	Options: Use erase_if to remove Args from the list.	2014-05-18 15:14:13 +00:00
ProfileData	ProfileData: Allow multiple profiles in RawInstrProfReader	2014-05-16 00:38:00 +00:00
Support	Fixup sys::getHostCPUFeatures crypto names so it doesn't clash with kernel headers	2014-05-23 10:14:13 +00:00
TableGen	[modules] Add module maps for LLVM. These are not quite ready for prime-time	2014-05-21 02:46:14 +00:00
Target	[PPC] Use alias symbols in address computation.	2014-05-29 15:41:38 +00:00
Transforms	Add support for combining GEPs across PHI nodes	2014-05-29 20:29:47 +00:00
CMakeLists.txt	ProfileData: Introduce the InstrProfReader interface and a text reader	2014-03-21 17:24:48 +00:00
LLVMBuild.txt	ProfileData: Introduce the InstrProfReader interface and a text reader	2014-03-21 17:24:48 +00:00
Makefile	ProfileData: Introduce the InstrProfReader interface and a text reader	2014-03-21 17:24:48 +00:00