Huihui Zhang a4dd98f2e9 [InstCombine] Fold a shifty implementation of clamp-to-allones. ... Summary: Fold or(ashr(subNSW(Y, X), ScalarSizeInBits(Y)-1), X) into X s> Y ? -1 : X https://rise4fun.com/Alive/d8Ab clamp255 is a common operator in image processing, can be implemented in a shifty way "(255 - X) >> 31 | X & 255". Fold shift into select enables more optimization, e.g., vmin generation for ARM target. Reviewers: lebedev.ri, efriedma, spatel, kparzysz, bcahoon Reviewed By: lebedev.ri Subscribers: kristof.beyls, hiraditya, llvm-commits Tags: #llvm Differential Revision: https://reviews.llvm.org/D67800 llvm-svn: 372678		2019-09-24 00:30:09 +00:00
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AggressiveInstCombine	Change TargetLibraryInfo analysis passes to always require Function	2019-09-07 03:09:36 +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	HotColdSplitting: invalidate the AssumptionCache on split	2019-09-23 22:23:01 +00:00
InstCombine	[InstCombine] Fold a shifty implementation of clamp-to-allones.	2019-09-24 00:30:09 +00:00
Instrumentation	[AddressSanitizer] Don't dereference dyn_cast<ConstantInt> results. NFCI.	2019-09-20 20:52:21 +00:00
ObjCARC	[ObjC][ARC] Skip debug instructions when computing the insert point of	2019-09-19 20:58:51 +00:00
Scalar	[LSR] Silence static analyzer null dereference warnings with assertions. NFCI.	2019-09-22 17:59:24 +00:00
Utils	[SLC] Convert some strndup calls to strdup calls	2019-09-23 18:20:01 +00:00
Vectorize	[SLP] Fix for PR31847: Assertion failed: (isLoopInvariant(Operands[i], L) && "SCEVAddRecExpr operand is not loop-invariant!")	2019-09-23 16:25:03 +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