llvm-project/llvm/test/CodeGen/SystemZ/frame-25.ll

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; RUN: llc < %s -mtriple=s390x-linux-gnu | FileCheck %s
;
; Test that space is allocated for the incoming back chain also in cases
; where no GPRs are saved / restored.
define void @fun0() #0 {
; CHECK-LABEL: fun0:
; CHECK: lgr %r1, %r15
; CHECK-NEXT: aghi %r15, -24
; CHECK-NEXT: stg %r1, 152(%r15)
; CHECK-NEXT: #APP
; CHECK-NEXT: stcke 160(%r15)
; CHECK-NEXT: #NO_APP
; CHECK-NEXT: aghi %r15, 24
; CHECK-NEXT: br %r14
entry:
%b = alloca [16 x i8], align 1
%0 = getelementptr inbounds [16 x i8], [16 x i8]* %b, i64 0, i64 0
call void asm "stcke $0", "=*Q"([16 x i8]* nonnull %b) #2
ret void
}
attributes #0 = { nounwind "packed-stack" "backchain" "use-soft-float"="true" }