2 ; RUN: llc < %s -mtriple=aarch64-linux-gnu -mattr=+fuse-arith-logic -verify-misched -debug-only=machine-scheduler 2>&1 > /dev/null | FileCheck %s
4 ; Verify that, the macro-fusion creates the necessary dependencies between SUs and
5 ; only 2 SU's are fused at most.
6 define signext i32 @test(i32 signext %a, i32 signext %b, i32 signext %c, i32 signext %d) {
8 ; CHECK: ********** MI Scheduling **********
9 ; CHECK-LABEL: %bb.0 entry
10 ; CHECK: Macro fuse: SU([[SU4:[0-9]+]]) - SU([[SU5:[0-9]+]])
11 ; CHECK: Bind SU([[SU1:[0-9]+]]) - SU([[SU4]])
12 ; CHECK-NOT: Macro fuse:
13 ; CHECK: SU([[SU1]]): %{{[0-9]+}}:gpr32 = COPY $w2
14 ; CHECK: SU([[SU4]]): %{{[0-9]+}}:gpr32 = nsw ADDWrr
15 ; CHECK: SU([[SU5]]): %{{[0-9]+}}:gpr32 = nsw ADDWrr
16 %add = add nsw i32 %b, %a
17 %add1 = add nsw i32 %add, %c
18 %sub = sub nsw i32 %add1, %d