David Bolvansky dbcdad51ff [InstCombine] (1 << (C - x)) -> ((1 << C) >> x) if C is bitwidth - 1 ... Summary: ``` %a = sub i32 31, %x %r = shl i32 1, %a => %d = shl i32 1, 31 %r = lshr i32 %d, %x Done: 1 Optimization is correct! ``` https://rise4fun.com/Alive/btZm Reviewers: spatel, lebedev.ri, nikic Reviewed By: lebedev.ri Subscribers: llvm-commits Tags: #llvm Differential Revision: https://reviews.llvm.org/D63652 llvm-svn: 364073		2019-06-21 16:25:32 +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	Simplify std::lower_bound with llvm::{bsearch,lower_bound}. NFC	2019-06-21 05:40:31 +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] Disable the Attributor by default and fix a comment	2019-06-14 14:53:41 +00:00
InstCombine	[InstCombine] (1 << (C - x)) -> ((1 << C) >> x) if C is bitwidth - 1	2019-06-21 16:25:32 +00:00
Instrumentation	[profile] Solaris ld supports __start___llvm_prof_data etc. labels	2019-06-20 21:27:06 +00:00
ObjCARC	[ObjC][ARC] Delete ObjC runtime calls on global variables annotated	2019-06-14 22:06:32 +00:00
Scalar	[GVNSink] prevent crashing on mismatched instructions (PR42346)	2019-06-21 15:17:24 +00:00
Utils	[DebugInfo@O2][LoopVectorize] pr39024: Vectorized code linenos step through loop even after completion	2019-06-19 10:50:47 +00:00
Vectorize	[DebugInfo@O2][LoopVectorize] pr39024: Vectorized code linenos step through loop even after completion	2019-06-19 10:50:47 +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