| ; REQUIRES: asserts |
| ; RUN: llc < %s -mtriple=arm64-linux-gnu -mcpu=cortex-a57 -enable-misched=0 -debug-only=machine-scheduler -o - 2>&1 > /dev/null | FileCheck %s |
| ; REQUIRES: asserts |
| |
| @G = external global [0 x i32], align 4 |
| |
| ; Check that MMOs are added to epilogue calle-save restore loads so |
| ; that the store to G is not considered dependant on the callee-save |
| ; loads. |
| ; |
| ; CHECK: Before post-MI-sched: |
| ; CHECK-LABEL: # Machine code for function test1: |
| ; CHECK: SU(2): STRWui $wzr |
| ; CHECK: SU(3): $x21, $x20 = frame-destroy LDPXi $sp, 2 |
| ; CHECK: Predecessors: |
| ; CHECK-NEXT: SU(0): Out |
| ; CHECK-NEXT: SU(0): Out |
| ; CHECK-NEXT: SU(0): Ord |
| ; CHECK-NEXT: Successors: |
| define void @test1() { |
| entry: |
| tail call void asm sideeffect "nop", "~{x20},~{x21},~{x22},~{x23}"() nounwind |
| store i32 0, i32* getelementptr inbounds ([0 x i32], [0 x i32]* @G, i64 0, i64 0), align 4 |
| ret void |
| } |
