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503ec9826c
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 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@222398 91177308-0d34-0410-b5e6-96231b3b80d8
30 lines
634 B
LLVM
30 lines
634 B
LLVM
; RUN: opt -S -reassociate < %s | FileCheck %s
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; rdar://8944681
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; Reassociate should clear optional flags like nsw when reassociating.
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; CHECK-LABEL: @test0(
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; CHECK: %y = add i64 %b, %a
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; CHECK: %z = add i64 %y, %c
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define i64 @test0(i64 %a, i64 %b, i64 %c) {
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%y = add nsw i64 %c, %b
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%z = add i64 %y, %a
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ret i64 %z
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}
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; CHECK-LABEL: @test1(
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; CHECK: %y = add i64 %b, %a
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; CHECK: %z = add i64 %y, %c
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define i64 @test1(i64 %a, i64 %b, i64 %c) {
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%y = add i64 %c, %b
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%z = add nsw i64 %y, %a
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ret i64 %z
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}
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; PR9215
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; CHECK: %s = add nsw i32 %y, %x
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define i32 @test2(i32 %x, i32 %y) {
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%s = add nsw i32 %x, %y
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ret i32 %s
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}
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