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eafdf66096
This reverts commit r222142. This is causing/exposing an execution-time regression in spec2006/gcc and coremark on AArch64/A57/Ofast. Conflicts: test/Transforms/Reassociate/optional-flags.ll llvm-svn: 222398
15 lines
378 B
LLVM
15 lines
378 B
LLVM
; There should be exactly one shift and one add left.
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; RUN: opt < %s -reassociate -instcombine -S | FileCheck %s
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define i32 @test1(i32 %X, i32 %Y) {
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; CHECK-LABEL: test1
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; CHECK-NEXT: %tmp = add i32 %Y, %X
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; CHECK-NEXT: %tmp1 = shl i32 %tmp, 1
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; CHECK-NEXT: ret i32 %tmp1
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%tmp.2 = shl i32 %X, 1
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%tmp.6 = shl i32 %Y, 1
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%tmp.4 = add i32 %tmp.6, %tmp.2
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ret i32 %tmp.4
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}
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