llvm-for-llvmta/test/CodeGen/SystemZ/stackpointer.ll

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2022-04-25 10:02:23 +02:00
; RUN: llc < %s -mtriple=s390x-linux-gnu | FileCheck %s
define i8* @get_stack() nounwind {
entry:
; CHECK-LABEL: get_stack:
; CHECK: lgr %r2, %r15
; CHECK-NEXT: br %r14
%0 = call i64 @llvm.read_register.i64(metadata !0)
%1 = inttoptr i64 %0 to i8*
ret i8* %1
}
declare i64 @llvm.read_register.i64(metadata) nounwind
!0 = !{!"r15"}