41 lines
973 B
LLVM
41 lines
973 B
LLVM
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; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
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; 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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define i64 @test0(i64 %a, i64 %b, i64 %c) {
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;
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; CHECK-LABEL: @test0(
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; CHECK-NEXT: [[Y:%.*]] = add i64 [[B:%.*]], [[A:%.*]]
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; CHECK-NEXT: [[Z:%.*]] = add i64 [[Y]], [[C:%.*]]
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; CHECK-NEXT: ret i64 [[Z]]
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;
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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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define i64 @test1(i64 %a, i64 %b, i64 %c) {
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;
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; CHECK-LABEL: @test1(
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; CHECK-NEXT: [[Y:%.*]] = add i64 [[B:%.*]], [[A:%.*]]
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; CHECK-NEXT: [[Z:%.*]] = add i64 [[Y]], [[C:%.*]]
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; CHECK-NEXT: ret i64 [[Z]]
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;
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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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define i32 @test2(i32 %x, i32 %y) {
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;
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; CHECK-LABEL: @test2(
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; CHECK-NEXT: [[S:%.*]] = add nsw i32 [[Y:%.*]], [[X:%.*]]
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; CHECK-NEXT: ret i32 [[S]]
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;
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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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