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TheRock/compiler/amd-llvm/llvm/test/CodeGen/AArch64/inline-asm-clobber-x29-x30.ll
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derek.holloway 7502bf64a4
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2026-09-02 16:34:47 -07:00

45 lines
1.1 KiB
LLVM

; RUN: llc -mtriple=aarch64 -verify-machineinstrs < %s | FileCheck %s
; Test that both numeric register names (x29, x30) and their architectural
; aliases (fp, lr) work correctly as clobbers in inline assembly.
define void @clobber_x29() nounwind {
; CHECK-LABEL: clobber_x29:
; CHECK: str x29, [sp
; CHECK-NEXT: //APP
; CHECK-NEXT: //NO_APP
; CHECK-NEXT: ldr x29, [sp
tail call void asm sideeffect "", "~{x29}"()
ret void
}
define void @clobber_fp() nounwind {
; CHECK-LABEL: clobber_fp:
; CHECK: str x29, [sp
; CHECK-NEXT: //APP
; CHECK-NEXT: //NO_APP
; CHECK-NEXT: ldr x29, [sp
tail call void asm sideeffect "", "~{fp}"()
ret void
}
define void @clobber_x30() nounwind {
; CHECK-LABEL: clobber_x30:
; CHECK: str x30, [sp
; CHECK-NEXT: //APP
; CHECK-NEXT: //NO_APP
; CHECK-NEXT: ldr x30, [sp
tail call void asm sideeffect "", "~{x30}"()
ret void
}
define void @clobber_lr() nounwind {
; CHECK-LABEL: clobber_lr:
; CHECK: str x30, [sp
; CHECK-NEXT: //APP
; CHECK-NEXT: //NO_APP
; CHECK-NEXT: ldr x30, [sp
tail call void asm sideeffect "", "~{lr}"()
ret void
}