Kay Tiong Khoo 79b37835f9 Improved fix for PR17827 (instcombine of shift/and/compare). ...

This change fixes the case of arithmetic shift right - do not attempt to fold that case.
This change also relaxes the conditions when attempting to fold the logical shift right and shift left cases.

No additional IR-level test cases included at this time. See http://llvm.org/bugs/show_bug.cgi?id=17827 for proofs that these are correct transformations.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@197705 91177308-0d34-0410-b5e6-96231b3b80d8

2013-12-19 18:07:17 +00:00

..

CMakeLists.txt

…

InstCombine.h

Add instcombine visitor for addrspacecast

2013-11-15 05:45:08 +00:00

InstCombineAddSub.cpp

…

InstCombineAndOrXor.cpp

Update the docs to match the function name.

2013-11-13 01:12:01 +00:00

InstCombineCalls.cpp

…

InstCombineCasts.cpp

Rein in overzealous InstCombine of fptrunc(OP(fpextend, fpextend)).

2013-11-28 21:38:05 +00:00

InstCombineCompares.cpp

Improved fix for PR17827 (instcombine of shift/and/compare).

2013-12-19 18:07:17 +00:00

InstCombineLoadStoreAlloca.cpp

Fix assert with copy from global through addrspacecast

2013-12-07 02:58:45 +00:00

InstCombineMulDivRem.cpp

…

InstCombinePHI.cpp

…

InstCombineSelect.cpp

…

InstCombineShifts.cpp

…

InstCombineSimplifyDemanded.cpp

Remove x86_sse42_crc32_64_8 intrinsic. It has no functional difference from x86_sse42_crc32_32_8 and was not mapped to a clang builtin. I'm not even sure why this form of the instruction is even called out explicitly in the docs. Also add AutoUpgrade support to convert it into the other intrinsic with appropriate trunc and zext.

2013-10-15 05:20:47 +00:00

InstCombineVectorOps.cpp

Scalarize select vector arguments when extracted.

2013-11-04 20:36:06 +00:00

InstCombineWorklist.h

…

InstructionCombining.cpp

Don't use isNullValue to evaluate ConstantExpr

2013-12-06 21:48:36 +00:00

LLVMBuild.txt

…

Makefile

…