1 ; RUN: llc -mtriple=aarch64-none-linux-gnu -verify-machineinstrs < %s | FileCheck %s
2 ; RUN: llc -mtriple=arm64-none-linux-gnu -verify-machineinstrs -o - %s | FileCheck %s
4 ; LLVM should be able to cope with multiple uses of the same flag-setting
5 ; instruction at different points of a routine. Either by rematerializing the
6 ; compare or by saving and restoring the flag register.
12 define i32 @test_multiflag(i32 %n, i32 %m, i32 %o) {
13 ; CHECK-LABEL: test_multiflag:
15 %test = icmp ne i32 %n, %m
16 ; CHECK: cmp [[LHS:w[0-9]+]], [[RHS:w[0-9]+]]
18 %val = zext i1 %test to i32
19 ; CHECK: csinc {{[xw][0-9]+}}, {{xzr|wzr}}, {{xzr|wzr}}, eq
21 store i32 %val, i32* @var
26 ; Currently, the comparison is emitted again. An MSR/MRS pair would also be
27 ; acceptable, but assuming the call preserves NZCV is not.
28 br i1 %test, label %iftrue, label %iffalse
29 ; CHECK: cmp [[LHS]], [[RHS]]