derek.holloway
7502bf64a4
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86 lines
2.6 KiB
LLVM
86 lines
2.6 KiB
LLVM
; Test multiple return values (LLVM ABI extension)
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;
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; RUN: llc < %s -mtriple=s390x-linux-gnu -verify-machineinstrs| FileCheck %s
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; RUN: llc < %s -mtriple=s390x-linux-gnu -verify-machineinstrs \
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; RUN: -mattr=soft-float | FileCheck %s --check-prefix=SOFT-FLOAT
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; Up to four integer return values fit into GPRs.
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define { i64, i64, i64, i64 } @f1() {
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; CHECK-LABEL: f1:
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; CHECK: lghi %r2, 0
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; CHECK: lghi %r3, 1
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; CHECK: lghi %r4, 2
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; CHECK: lghi %r5, 3
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; CHECK: br %r14
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ret { i64, i64, i64, i64 } { i64 0, i64 1, i64 2, i64 3 }
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}
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; More than four integer return values use sret.
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define { i64, i64, i64, i64, i64 } @f2() {
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; CHECK-LABEL: f2:
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; CHECK: mvghi 32(%r2), 4
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; CHECK: mvghi 24(%r2), 3
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; CHECK: mvghi 16(%r2), 2
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; CHECK: mvghi 8(%r2), 1
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; CHECK: mvghi 0(%r2), 0
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; CHECK: br %r14
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ret { i64, i64, i64, i64, i64 } { i64 0, i64 1, i64 2, i64 3, i64 4 }
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}
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; Up to four floating-point return values fit into FPRs.
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define { double, double, double, double } @f3() {
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; CHECK-LABEL: f3:
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; CHECK: larl [[TMP:%r[0-5]]], .LCPI
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; CHECK: ld %f0, 0([[TMP]])
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; CHECK: larl [[TMP:%r[0-5]]], .LCPI
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; CHECK: ld %f2, 0([[TMP]])
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; CHECK: larl [[TMP:%r[0-5]]], .LCPI
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; CHECK: ld %f4, 0([[TMP]])
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; CHECK: larl [[TMP:%r[0-5]]], .LCPI
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; CHECK: ld %f6, 0([[TMP]])
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; CHECK: br %r14
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; SOFT-FLOAT-LABEL: f3:
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; SOFT-FLOAT-NOT: %{{[fv]}}
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; SOFT-FLOAT: llihh %r2, 16368
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; SOFT-FLOAT-NEXT: llihh %r3, 16384
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; SOFT-FLOAT-NEXT: llihh %r4, 16392
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; SOFT-FLOAT-NEXT: llihh %r5, 16400
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; SOFT-FLOAT-NEXT: br %r14
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ret { double, double, double, double }
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{ double 1.0, double 2.0, double 3.0, double 4.0 }
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}
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; More than four floating-point return values use sret.
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define { double, double, double, double, double } @f4() {
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; CHECK-LABEL: f4:
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; CHECK: llihh [[TMP:%r[0-5]]], 16404
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; CHECK: stg [[TMP]], 32(%r2)
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; CHECK: llihh [[TMP:%r[0-5]]], 16400
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; CHECK: stg [[TMP]], 24(%r2)
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; CHECK: llihh [[TMP:%r[0-5]]], 16392
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; CHECK: stg [[TMP]], 16(%r2)
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; CHECK: llihh [[TMP:%r[0-5]]], 16384
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; CHECK: stg [[TMP]], 8(%r2)
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; CHECK: llihh [[TMP:%r[0-5]]], 16368
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; CHECK: stg [[TMP]], 0(%r2)
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; CHECK: br %r14
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; SOFT-FLOAT-LABEL: f4:
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; SOFT-FLOAT-NOT: %{{[fv]}}
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; SOFT-FLOAT-NOT: %r2
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; SOFT-FLOAT: llihh %r0, 16404
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; SOFT-FLOAT-NEXT: stg %r0, 32(%r2)
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; SOFT-FLOAT-NEXT: llihh %r0, 16400
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; SOFT-FLOAT-NEXT: stg %r0, 24(%r2)
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; SOFT-FLOAT-NEXT: llihh %r0, 16392
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; SOFT-FLOAT-NEXT: stg %r0, 16(%r2)
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; SOFT-FLOAT-NEXT: llihh %r0, 16384
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; SOFT-FLOAT-NEXT: stg %r0, 8(%r2)
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; SOFT-FLOAT-NEXT: llihh %r0, 16368
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; SOFT-FLOAT-NEXT: stg %r0, 0(%r2)
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; SOFT-FLOAT-NEXT: br %r14
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ret { double, double, double, double, double }
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{ double 1.0, double 2.0, double 3.0, double 4.0, double 5.0 }
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}
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