File: zos-ada.ll

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llvm-toolchain-17 1%3A17.0.6-22
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; Test the setup of the environment area, or associated data area (ADA)
;
; RUN: llc < %s -mtriple=s390x-ibm-zos -mcpu=z10 | FileCheck %s

; CHECK-LABEL: caller:
; CHECK:         stmg 6, 8, 1872(4)
; CHECK-NEXT:    aghi 4, -192
; CHECK-NEXT:    lgr 8, 5
; CHECK-NEXT:    brasl 7, callee_internal@PLT
; CHECK-NEXT:    bcr 0, 3
; CHECK-NEXT:    lg 6, 8(8)
; CHECK-NEXT:    lg 5, 0(8)
; CHECK-NEXT:    lgr 8, 3
; CHECK-NEXT:    basr 7, 6
; CHECK-NEXT:    bcr 0, 0
; CHECK-NEXT:    la 3, 0(3,8)
; CHECK-NEXT:    lmg 7, 8, 2072(4)
; CHECK-NEXT:    aghi 4, 192
; CHECK-NEXT:    b 2(7)
define i64 @caller() {
  %r1 = call i64 () @callee_internal()
  %r2 = call i64 () @callee_external()
  %r3 = add i64 %r1, %r2
  ret i64 %r3
}

define internal i64 @callee_internal() {
  ret i64 10
}

declare i64 @callee_external()