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cad0669c4c
llvm-mirror/test
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Craig Topper cad0669c4c [InstCombine] Don't transform ((C1 OP zext(X)) & C2) -> zext((C1 OP X) & C2) if either zext or OP has another use. 
If they have other users we'll just end up increasing the instruction count.

We might be able to weaken this to only one of them having a single use if we can prove that the and will be removed.

Fixes PR41164.

Differential Revision: https://reviews.llvm.org/D59630

llvm-svn: 356690
2019-03-21 17:50:49 +00:00
..
Analysis [TTI] getMemcpyCost 2019-03-20 14:15:46 +00:00
Assembler [DebugInfo] Introduce DW_OP_LLVM_convert 2019-03-19 13:16:28 +00:00
Bindings
Bitcode [DebugInfoMetadata] Move main subprogram DIFlag into DISPFlags 2019-03-19 13:49:03 +00:00
BugPoint
CodeGen [X86] Don't avoid folding multiple use sign extended 8-bit immediate into instructions under optsize. 2019-03-21 17:38:58 +00:00
DebugInfo RegAllocFast: Remove early selection loop, the spill calculation will report cost 0 anyway for free regs 2019-03-19 19:01:34 +00:00
Demangle
Examples
ExecutionEngine
Feature
FileCheck
Instrumentation
Integer
JitListener
Linker
LTO [Linker] Fix crash handling appending linkage 2019-03-20 19:20:07 +00:00
MachineVerifier
MC [RISCV][NFC] Remove old CHECK lines from linker-relaxation.s test 2019-03-21 09:53:19 +00:00
Object
ObjectYAML [WebAssembly] Target features section 2019-03-20 20:26:45 +00:00
Other Resubmit r356511 "[TailCallElim] Add tailcall elimination pass to LTO pipelines" 2019-03-20 19:08:18 +00:00
SafepointIRVerifier
SymbolRewriter
TableGen [CodeGen] Defined MVTs v3i32, v3f32, v5i32, v5f32 2019-03-17 22:56:38 +00:00
ThinLTO/X86 [ThinLTO] Restructure AliasSummary to contain ValueInfo of Aliasee 2019-03-15 15:11:38 +00:00
tools Fixup opt-remarks.ll gold plugin test. NFC 2019-03-21 14:35:06 +00:00
Transforms [InstCombine] Don't transform ((C1 OP zext(X)) & C2) -> zext((C1 OP X) & C2) if either zext or OP has another use. 2019-03-21 17:50:49 +00:00
Unit
Verifier Remove immarg from llvm.expect 2019-03-17 23:16:18 +00:00
YAMLParser
.clang-format
CMakeLists.txt
lit.cfg.py
lit.site.cfg.py.in
TestRunner.sh