David Bolvansky 0c2692108c [InstCombine] Fold select with ctlz to cttz ... Summary: Handle pattern [0]: int ctz(unsigned int a) { int c = __clz(a & -a); return a ? 31 - c : c; } In reality, the compiler can generate much better code for cttz, so fold away this pattern. https://godbolt.org/z/c5kPtV [0] https://community.arm.com/community-help/f/discussions/2114/count-trailing-zeros Reviewers: spatel, nikic, lebedev.ri, dmgreen, hfinkel Reviewed By: hfinkel Subscribers: hfinkel, javed.absar, kristof.beyls, llvm-commits Tags: #llvm Differential Revision: https://reviews.llvm.org/D66308 llvm-svn: 370037		2019-08-27 10:22:40 +00:00
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AggressiveInstCombine	Update the file headers across all of the LLVM projects in the monorepo	2019-01-19 08:50:56 +00:00
Coroutines	[llvm] Migrate llvm::make_unique to std::make_unique	2019-08-15 15:54:37 +00:00
Hello	Update the file headers across all of the LLVM projects in the monorepo	2019-01-19 08:50:56 +00:00
IPO	[Attributor] Introduce an API to delete stuff	2019-08-27 04:57:54 +00:00
InstCombine	[InstCombine] Fold select with ctlz to cttz	2019-08-27 10:22:40 +00:00
Instrumentation	[hwasan] Fix test failure in r369721.	2019-08-26 21:44:55 +00:00
ObjCARC	[ObjC][ARC] Delete ObjC runtime calls on global variables annotated	2019-06-14 22:06:32 +00:00
Scalar	[LoopFusion] Fix -Wunused-function in -DLLVM_ENABLE_ASSERTIONS=off build	2019-08-24 02:50:42 +00:00
Utils	[LoopUnroll] Handle certain PHIs in full unrolling properly	2019-08-26 09:29:53 +00:00
Vectorize	Add a clarify comment for meaning of SafePointes [NFC]	2019-08-26 20:48:35 +00:00
CMakeLists.txt	Another try to commit 323321 (aggressive instruction combine).	2018-01-25 12:06:32 +00:00
LLVMBuild.txt	Update the file headers across all of the LLVM projects in the monorepo	2019-01-19 08:50:56 +00:00