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2a6d9eb10b
The potential DAGCombine which enforces this more generally messes up some other very fragile patterns, so I'm leaving that alone, at least for now. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132809 91177308-0d34-0410-b5e6-96231b3b80d8
12 lines
204 B
LLVM
12 lines
204 B
LLVM
; RUN: llc < %s -march=x86-64 | FileCheck %s
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define i64 @test(i64 %A) {
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; CHECK: @test
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; CHECK: shrq $54
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; CHECK: andq $1020
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; CHECK: ret
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%B = lshr i64 %A, 56
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%C = shl i64 %B, 2
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ret i64 %C
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}
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