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1; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py2 3;; Testing that x18 is backed up and restored, and that x29 (if used) still4;; points to the x29,x30 pair on the stack.5 6; RUN: llc < %s -mtriple=arm64-apple-darwin | FileCheck %s7; RUN: llc < %s -mtriple=arm64-apple-darwin -mattr=+reserve-x18 | FileCheck %s8 9declare dso_local void @other()10 11define win64cc void @func(i32 noundef %0) #0 {12; CHECK-LABEL: func:13; CHECK: ; %bb.0: ; %entry14; CHECK-NEXT: str x18, [sp, #-32]! ; 8-byte Folded Spill15; CHECK-NEXT: stp x29, x30, [sp, #16] ; 16-byte Folded Spill16; CHECK: ldp x29, x30, [sp, #16] ; 16-byte Folded Reload17; CHECK-NEXT: ldr x18, [sp], #32 ; 8-byte Folded Reload18; CHECK-NEXT: ret19entry:20 %al = alloca i32, align 421 store i32 %0, ptr %al, align 422 tail call void @other()23 ret void24}25 26define i32 @main() {27 call win64cc void @func(i32 noundef 17)28 ret i32 029}30 31attributes #0 = { nounwind }32