31 lines
959 B
LLVM
31 lines
959 B
LLVM
; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
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;; Testing that x18 is backed up and restored, and that x29 (if used) still
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;; points to the x29,x30 pair on the stack.
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; RUN: llc < %s -mtriple=arm64-apple-darwin | FileCheck %s
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; RUN: llc < %s -mtriple=arm64-apple-darwin -mattr=+reserve-x18 | FileCheck %s
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declare dso_local void @other()
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define win64cc void @func(i32 noundef %0) #0 {
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; CHECK-LABEL: func:
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; CHECK: ; %bb.0: ; %entry
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; CHECK-NEXT: str x18, [sp, #-32]! ; 8-byte Folded Spill
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; CHECK-NEXT: stp x29, x30, [sp, #16] ; 16-byte Folded Spill
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; CHECK: ldp x29, x30, [sp, #16] ; 16-byte Folded Reload
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; CHECK-NEXT: ldr x18, [sp], #32 ; 8-byte Folded Reload
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; CHECK-NEXT: ret
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entry:
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%al = alloca i32, align 4
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store i32 %0, ptr %al, align 4
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tail call void @other()
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ret void
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}
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define i32 @main() {
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call win64cc void @func(i32 noundef 17)
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ret i32 0
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}
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attributes #0 = { nounwind }
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