Chandler Carruth 4f93ec40bc Do a better and more complete job of preserving metadata when combining ... loads. This handles many more cases than just the AA metadata, some of them suggested by Hal in his review of the AA metadata handling patch. I've tried to test this behavior where tractable to do so. I'll point out that I have specifically *not* included a test for debuginfo because it was going to require 2 or 3 times as much work to craft some input which would survive the "helpful" stripping of debug info metadata that doesn't match the desired schema. This is another good example of why the current state of write-ability for our debug info metadata is unacceptable. I spent over 30 minutes trying to conjure some test case that would survive, even copying from other debug info tests, but it always failed to survive with no explanation of why or how I might fix it. =[ llvm-svn: 220165		2014-10-19 10:46:46 +00:00
..
CMakeLists.txt	Tidy up a bit. No functional change.	2013-04-05 21:20:12 +00:00
InstCombine.h	InstCombine: Optimize icmp eq/ne (shl Const2, A), Const1	2014-10-19 08:23:08 +00:00
InstCombineAddSub.cpp	InstCombine: (sub (or A B) (xor A B)) --> (and A B)	2014-10-19 08:32:32 +00:00
InstCombineAndOrXor.cpp	InstCombine: Turn (x != 0 & x <u C) into the canonical range check form (x-1 <u C-1)	2014-10-12 14:02:34 +00:00
InstCombineCalls.cpp	[InstCombine] Simplify the logic from r219067 using ValueTracking	2014-10-05 00:53:02 +00:00
InstCombineCasts.cpp	Make use of @llvm.assume in ValueTracking (computeKnownBits, etc.)	2014-09-07 18:57:58 +00:00
InstCombineCompares.cpp	InstCombine: Optimize icmp eq/ne (shl Const2, A), Const1	2014-10-19 08:23:08 +00:00
InstCombineLoadStoreAlloca.cpp	Do a better and more complete job of preserving metadata when combining	2014-10-19 10:46:46 +00:00
InstCombineMulDivRem.cpp	InstCombine: Don't miscompile X % ((Pow2 << A) >>u B)	2014-10-14 20:28:40 +00:00
InstCombinePHI.cpp	Make use of @llvm.assume in ValueTracking (computeKnownBits, etc.)	2014-09-07 18:57:58 +00:00
InstCombineSelect.cpp	Make use of @llvm.assume in ValueTracking (computeKnownBits, etc.)	2014-09-07 18:57:58 +00:00
InstCombineShifts.cpp	Make use of @llvm.assume in ValueTracking (computeKnownBits, etc.)	2014-09-07 18:57:58 +00:00
InstCombineSimplifyDemanded.cpp	Add additional patterns for @llvm.assume in ValueTracking	2014-09-07 19:21:07 +00:00
InstCombineVectorOps.cpp	fixed some typos	2014-07-07 22:13:58 +00:00
InstCombineWorklist.h	Canonicalize header guards into a common format.	2014-08-13 16:26:38 +00:00
InstructionCombining.cpp	Reapply r219832 - InstCombine: Narrow switch instructions using known bits.	2014-10-16 06:00:46 +00:00
LLVMBuild.txt	LLVMBuild: Remove trailing newline, which irked me.	2011-12-12 19:48:00 +00:00
Makefile