File: inline-asm-clobber-base-frame-pointer.ll

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llvm-toolchain-21 1%3A21.1.6-3
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; Check that not only do we warn about clobbering x19 we also say
; what it is used for.

; RUN: llc <%s -mtriple=aarch64 2>&1 | FileCheck %s

; CHECK: warning: inline asm clobber list contains reserved registers: X19
; CHECK-NEXT: note: Reserved registers on the clobber list
; CHECK-NEXT: note: X19 is used as the frame base pointer register.
; CHECK-NEXT: note: X19 is used as the frame base pointer register.

define void @alloca(i64 %size) {
entry:
  %a = alloca i128, i64 %size, align 64
  call void asm sideeffect "nop", "~{x19},~{w19}"()
  ret void
}