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| ; Test multiple return values (LLVM ABI extension)
;
; RUN: llc < %s -mtriple=s390x-linux-gnu -verify-machineinstrs| FileCheck %s
; Up to four integer return values fit into GPRs.
define { i64, i64, i64, i64 } @f1() {
; CHECK-LABEL: f1:
; CHECK: lghi %r2, 0
; CHECK: lghi %r3, 1
; CHECK: lghi %r4, 2
; CHECK: lghi %r5, 3
; CHECK: br %r14
ret { i64, i64, i64, i64 } { i64 0, i64 1, i64 2, i64 3 }
}
; More than four integer return values use sret.
define { i64, i64, i64, i64, i64 } @f2() {
; CHECK-LABEL: f2:
; CHECK: mvghi 32(%r2), 4
; CHECK: mvghi 24(%r2), 3
; CHECK: mvghi 16(%r2), 2
; CHECK: mvghi 8(%r2), 1
; CHECK: mvghi 0(%r2), 0
; CHECK: br %r14
ret { i64, i64, i64, i64, i64 } { i64 0, i64 1, i64 2, i64 3, i64 4 }
}
; Up to four floating-point return values fit into FPRs.
define { double, double, double, double } @f3() {
; CHECK-LABEL: f3:
; CHECK: larl [[TMP:%r[0-5]]], .LCPI
; CHECK: ldeb %f0, 0([[TMP]])
; CHECK: larl [[TMP:%r[0-5]]], .LCPI
; CHECK: ldeb %f2, 0([[TMP]])
; CHECK: larl [[TMP:%r[0-5]]], .LCPI
; CHECK: ldeb %f4, 0([[TMP]])
; CHECK: larl [[TMP:%r[0-5]]], .LCPI
; CHECK: ldeb %f6, 0([[TMP]])
; CHECK: br %r14
ret { double, double, double, double }
{ double 1.0, double 2.0, double 3.0, double 4.0 }
}
; More than four floating-point return values use sret.
define { double, double, double, double, double } @f4() {
; CHECK-LABEL: f4:
; CHECK: llihh [[TMP:%r[0-5]]], 16404
; CHECK: stg [[TMP]], 32(%r2)
; CHECK: llihh [[TMP:%r[0-5]]], 16400
; CHECK: stg [[TMP]], 24(%r2)
; CHECK: llihh [[TMP:%r[0-5]]], 16392
; CHECK: stg [[TMP]], 16(%r2)
; CHECK: llihh [[TMP:%r[0-5]]], 16384
; CHECK: stg [[TMP]], 8(%r2)
; CHECK: llihh [[TMP:%r[0-5]]], 16368
; CHECK: stg [[TMP]], 0(%r2)
; CHECK: br %r14
ret { double, double, double, double, double }
{ double 1.0, double 2.0, double 3.0, double 4.0, double 5.0 }
}
|