1; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py 2 3;; Testing that x18 is backed up and restored, and that x29 (if used) still 4;; points to the x29,x30 pair on the stack. 5 6; RUN: llc < %s -mtriple=arm64-apple-darwin | FileCheck %s 7; RUN: llc < %s -mtriple=arm64-apple-darwin -mattr=+reserve-x18 | FileCheck %s 8 9declare dso_local void @other() 10 11define win64cc void @func(i32 noundef %0) #0 { 12; CHECK-LABEL: func: 13; CHECK: ; %bb.0: ; %entry 14; CHECK-NEXT: str x18, [sp, #-32]! ; 8-byte Folded Spill 15; CHECK-NEXT: stp x29, x30, [sp, #16] ; 16-byte Folded Spill 16; CHECK: ldp x29, x30, [sp, #16] ; 16-byte Folded Reload 17; CHECK-NEXT: ldr x18, [sp], #32 ; 8-byte Folded Reload 18; CHECK-NEXT: ret 19entry: 20 %al = alloca i32, align 4 21 store i32 %0, ptr %al, align 4 22 tail call void @other() 23 ret void 24} 25 26define i32 @main() { 27 call win64cc void @func(i32 noundef 17) 28 ret i32 0 29} 30 31attributes #0 = { nounwind } 32