1 ; RUN: llc < %s -mtriple=arm64-apple-darwin | FileCheck %s 2 3 define void @test_shadow_optimization() { 4 entry: 5 ; Expect 8 bytes worth of nops here rather than 16: With the shadow optimization 6 ; in place, 8 bytes will be consumed by the frame teardown and return instr. 7 ; CHECK-LABEL: test_shadow_optimization: 8 ; CHECK: nop 9 ; CHECK-NEXT: nop 10 ; CHECK-NOT: nop 11 tail call void (i64, i32, ...) @llvm.experimental.stackmap(i64 0, i32 16) 12 ret void 13 } 14 15 declare void @llvm.experimental.stackmap(i64, i32, ...) 16