Sanjay Patel de6f59d487 [InstCombine] fold bitcasts around an extractelement (2nd try) ... This is a redo of r255124 (reverted at r255126) with an added check for a scalar destination type and an added test for the failure seen in Clang's test/CodeGen/vector.c. The extra test shows a different missing optimization. Original commit message: Example: bitcast (extractelement (bitcast <2 x float> %X to <2 x i32>), 1) to float ---> extractelement <2 x float> %X, i32 1 This is part of fixing PR25543: https://llvm.org/bugs/show_bug.cgi?id=25543 The next step will be to generalize this fold: trunc ( lshr ( bitcast X) ) -> extractelement (X) Ie, I'm hoping to replace the existing transform of: bitcast ( trunc ( lshr ( bitcast X))) added by: http://reviews.llvm.org/rL112232 with 2 less specific transforms to catch the case in the bug report. Differential Revision: http://reviews.llvm.org/D14879 llvm-svn: 255137		2015-12-09 18:57:16 +00:00
..
CMakeLists.txt	Use ADDITIONAL_HEADER_DIRS in all LLVM CMake projects.	2015-02-11 03:28:02 +00:00
InstCombineAddSub.cpp	Fix some Clang-tidy modernize warnings, other minor fixes.	2015-11-04 22:32:32 +00:00
InstCombineAndOrXor.cpp	Do (A == C1 || A == C2) -> (A & ~(C1 ^ C2)) == C1 rather than (A == C1 || A == C2) -> (A | (C1 ^ C2)) == C2 when C1 ^ C2 is a power of 2.	2015-12-02 16:15:07 +00:00
InstCombineCalls.cpp	[AttributeSet] Overload AttributeSet::addAttribute to reduce compile	2015-12-02 06:58:49 +00:00
InstCombineCasts.cpp	[InstCombine] fold bitcasts around an extractelement (2nd try)	2015-12-09 18:57:16 +00:00
InstCombineCompares.cpp	[InstCombine] Optimize icmp of inc/dec at RHS	2015-10-19 22:08:14 +00:00
InstCombineInternal.h	Revert "Change memcpy/memset/memmove to have dest and source alignments."	2015-11-19 05:56:52 +00:00
InstCombineLoadStoreAlloca.cpp	Preserve load alignment and dereferenceable metadata during some transformations	2015-11-02 17:53:51 +00:00
InstCombineMulDivRem.cpp	InstCombine: Remove ilist iterator implicit conversions, NFC	2015-10-13 16:59:33 +00:00
InstCombinePHI.cpp	[InstCombine] Teach FoldPHIArgZextsIntoPHI about EHPads	2015-11-07 00:52:53 +00:00
InstCombineSelect.cpp	[InstCombine] Call getCmpPredicateForMinMax only with a valid SPF	2015-12-05 23:44:22 +00:00
InstCombineShifts.cpp	don't repeat function names in comments; NFC	2015-11-02 22:34:55 +00:00
InstCombineSimplifyDemanded.cpp	[InstCombine] Teach SimplifyDemandedVectorElts how to handle ConstantVector select masks with ConstantExpr elements (PR24922)	2015-10-06 10:34:53 +00:00
InstCombineVectorOps.cpp	fix typos in comments; NFC	2015-11-29 22:09:34 +00:00
InstructionCombining.cpp	Move EH-specific helper functions to a more appropriate place	2015-12-02 23:06:39 +00:00
LLVMBuild.txt	Update libdeps since TLI was moved from Target to Analysis in r226078.	2015-01-15 05:21:00 +00:00
Makefile