Chris Lattner a958cbfe36 Disable folding sext(trunc(x)) -> x (and other similar cast/cast cases) when the ... trunc has multiple uses. Codegen is not able to coalesce the subreg case correctly and so this leads to higher register pressure and spilling (see PR5997). This speeds up 256.bzip2 from 8.60 -> 8.04s on my machine, ~7%. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93200 91177308-0d34-0410-b5e6-96231b3b80d8		2010-01-11 22:45:25 +00:00
..
CMakeLists.txt
InstCombine.h	inline and remove the rest of commonIntCastTransforms.	2010-01-10 01:00:46 +00:00
InstCombineAddSub.cpp
InstCombineAndOrXor.cpp	add one more bitfield optimization, allowing clang to generate	2010-01-11 06:55:24 +00:00
InstCombineCalls.cpp	Remove unnecessary dyn_cast and add a comment. Part of a WIP.	2010-01-08 21:37:11 +00:00
InstCombineCasts.cpp	Disable folding sext(trunc(x)) -> x (and other similar cast/cast cases) when the	2010-01-11 22:45:25 +00:00
InstCombineCompares.cpp	tidy up some stuff duncan pointed out.	2010-01-08 17:48:19 +00:00
InstCombineLoadStoreAlloca.cpp
InstCombineMulDivRem.cpp
InstCombinePHI.cpp
InstCombineSelect.cpp
InstCombineShifts.cpp	change the preferred canonical form for a sign extension to be	2010-01-10 07:08:30 +00:00
InstCombineSimplifyDemanded.cpp
InstCombineVectorOps.cpp
InstCombineWorklist.h
InstructionCombining.cpp	teach ComputeNumSignBits to look through PHI nodes.	2010-01-07 23:44:37 +00:00
Makefile	forgot to svn add these.	2010-01-04 06:28:20 +00:00