James Molloy 7697faf6db [InstCombine] Rewrite bswap/bitreverse handling completely. ... There are several requirements that ended up with this design; 1. Matching bitreversals is too heavyweight for InstCombine and doesn't really need to be done so early. 2. Bitreversals and byteswaps are very related in their matching logic. 3. We want to implement support for matching more advanced bswap/bitreverse patterns like partial bswaps/bitreverses. 4. Bswaps are best matched early in InstCombine. The result of these is that a new utility function is created in Transforms/Utils/Local.h that can be configured to search for bswaps, bitreverses or both. InstCombine uses it to find only bswaps, CGP uses it to find only bitreversals. We can then extend the matching logic in one place only. llvm-svn: 257875		2016-01-15 09:20:19 +00:00
..
AArch64	Move free-zext.ll to llvm/test/Transforms/CodeGenPrepare/AArch64/	2015-11-20 22:55:34 +00:00
AMDGPU	AMDGPU: Fix some places missed in rename	2015-06-19 17:39:03 +00:00
ARM	[InstCombine] Rewrite bswap/bitreverse handling completely.	2016-01-15 09:20:19 +00:00
X86	Reapply r257105 "[Verifier] Check that debug values have proper size"	2016-01-15 00:46:17 +00:00
2008-11-24-RAUW-Self.ll
basic.ll
bitreverse-hang.ll	[InstCombine] Rewrite bswap/bitreverse handling completely.	2016-01-15 09:20:19 +00:00
invariant.group.ll	Introducing llvm.invariant.group.barrier intrinsic	2015-09-15 18:32:14 +00:00
overflow-intrinsics.ll	[InstCombine][CodeGenPrep] Create llvm.uadd.with.overflow in CGP.	2015-04-10 21:07:09 +00:00
statepoint-relocate.ll	[gc.statepoint] Change gc.statepoint intrinsic's return type to token type instead of i32 type	2015-12-26 07:54:32 +00:00