1 ; RUN: llc -mtriple=aarch64-none-linux-gnu -aarch64-atomic-cfg-tidy=0 -verify-machineinstrs -o - %s | FileCheck %s
3 ; LLVM should be able to cope with multiple uses of the same flag-setting
4 ; instruction at different points of a routine. Either by rematerializing the
5 ; compare or by saving and restoring the flag register.
11 define i32 @test_multiflag(i32 %n, i32 %m, i32 %o) {
12 ; CHECK-LABEL: test_multiflag:
14 %test = icmp ne i32 %n, %m
15 ; CHECK: cmp [[LHS:w[0-9]+]], [[RHS:w[0-9]+]]
17 %val = zext i1 %test to i32
18 ; CHECK: cset {{[xw][0-9]+}}, ne
20 store i32 %val, i32* @var
25 ; Currently, the comparison is emitted again. An MSR/MRS pair would also be
26 ; acceptable, but assuming the call preserves NZCV is not.
27 br i1 %test, label %iftrue, label %iffalse
28 ; CHECK: cmp [[LHS]], [[RHS]]