1 ; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
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.
6 ; RUN: llc < %s -mtriple=arm64-apple-darwin | FileCheck %s
7 ; RUN: llc < %s -mtriple=arm64-apple-darwin -mattr=+reserve-x18 | FileCheck %s
9 declare dso_local void @other()
11 define win64cc void @func(i32 noundef %0) #0 {
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
20 %al = alloca i32, align 4
21 store i32 %0, ptr %al, align 4
22 tail call void @other()
27 call win64cc void @func(i32 noundef 17)
31 attributes #0 = { nounwind }