1; NOTE: Assertions have been autogenerated by utils/update_test_checks.py 2; RUN: opt -S -passes=reassociate < %s | FileCheck %s 3; rdar://8944681 4 5; Reassociate should clear optional flags like nsw when reassociating. 6 7define i64 @test0(i64 %a, i64 %b, i64 %c) { 8; 9; CHECK-LABEL: @test0( 10; CHECK-NEXT: [[Y:%.*]] = add i64 [[B:%.*]], [[A:%.*]] 11; CHECK-NEXT: [[Z:%.*]] = add i64 [[Y]], [[C:%.*]] 12; CHECK-NEXT: ret i64 [[Z]] 13; 14 %y = add nsw i64 %c, %b 15 %z = add i64 %y, %a 16 ret i64 %z 17} 18 19define i64 @test1(i64 %a, i64 %b, i64 %c) { 20; 21; CHECK-LABEL: @test1( 22; CHECK-NEXT: [[Y:%.*]] = add i64 [[B:%.*]], [[A:%.*]] 23; CHECK-NEXT: [[Z:%.*]] = add i64 [[Y]], [[C:%.*]] 24; CHECK-NEXT: ret i64 [[Z]] 25; 26 %y = add i64 %c, %b 27 %z = add nsw i64 %y, %a 28 ret i64 %z 29} 30 31; PR9215 32define i32 @test2(i32 %x, i32 %y) { 33; 34; CHECK-LABEL: @test2( 35; CHECK-NEXT: [[S:%.*]] = add nsw i32 [[Y:%.*]], [[X:%.*]] 36; CHECK-NEXT: ret i32 [[S]] 37; 38 %s = add nsw i32 %x, %y 39 ret i32 %s 40} 41