xref: /aosp_15_r20/external/llvm/test/Transforms/Reassociate/optional-flags.ll (revision 9880d6810fe72a1726cb53787c6711e909410d58) 
1*9880d681SAndroid Build Coastguard Worker; RUN: opt -S -reassociate < %s | FileCheck %s
2*9880d681SAndroid Build Coastguard Worker; rdar://8944681
3*9880d681SAndroid Build Coastguard Worker
4*9880d681SAndroid Build Coastguard Worker; Reassociate should clear optional flags like nsw when reassociating.
5*9880d681SAndroid Build Coastguard Worker
6*9880d681SAndroid Build Coastguard Worker; CHECK-LABEL: @test0(
7*9880d681SAndroid Build Coastguard Worker; CHECK: %y = add i64 %b, %a
8*9880d681SAndroid Build Coastguard Worker; CHECK: %z = add i64 %y, %c
9*9880d681SAndroid Build Coastguard Workerdefine i64 @test0(i64 %a, i64 %b, i64 %c) {
10*9880d681SAndroid Build Coastguard Worker  %y = add nsw i64 %c, %b
11*9880d681SAndroid Build Coastguard Worker  %z = add i64 %y, %a
12*9880d681SAndroid Build Coastguard Worker  ret i64 %z
13*9880d681SAndroid Build Coastguard Worker}
14*9880d681SAndroid Build Coastguard Worker
15*9880d681SAndroid Build Coastguard Worker; CHECK-LABEL: @test1(
16*9880d681SAndroid Build Coastguard Worker; CHECK: %y = add i64 %b, %a
17*9880d681SAndroid Build Coastguard Worker; CHECK: %z = add i64 %y, %c
18*9880d681SAndroid Build Coastguard Workerdefine i64 @test1(i64 %a, i64 %b, i64 %c) {
19*9880d681SAndroid Build Coastguard Worker  %y = add i64 %c, %b
20*9880d681SAndroid Build Coastguard Worker  %z = add nsw i64 %y, %a
21*9880d681SAndroid Build Coastguard Worker  ret i64 %z
22*9880d681SAndroid Build Coastguard Worker}
23*9880d681SAndroid Build Coastguard Worker
24*9880d681SAndroid Build Coastguard Worker; PR9215
25*9880d681SAndroid Build Coastguard Worker; CHECK: %s = add nsw i32 %y, %x
26*9880d681SAndroid Build Coastguard Workerdefine i32 @test2(i32 %x, i32 %y) {
27*9880d681SAndroid Build Coastguard Worker  %s = add nsw i32 %x, %y
28*9880d681SAndroid Build Coastguard Worker  ret i32 %s
29*9880d681SAndroid Build Coastguard Worker}
30