derek.holloway
7502bf64a4
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50 lines
1.2 KiB
LLVM
50 lines
1.2 KiB
LLVM
; Test conversions of unsigned i32s to floating-point values (z10 only).
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;
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; RUN: llc < %s -mtriple=s390x-linux-gnu -mcpu=z10 | FileCheck %s
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; Check i32->f16. There is no native instruction, so we must promote
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; to i64 first.
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define half @f0(i32 %i) {
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; CHECK-LABEL: f0:
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; CHECK: llgfr [[REGISTER:%r[0-5]]], %r2
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; CHECK: cegbr %f0, [[REGISTER]]
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; CHECK-NEXT: brasl %r14, __truncsfhf2@PLT
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; CHECK: br %r14
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%conv = uitofp i32 %i to half
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ret half %conv
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}
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; Check i32->f32. There is no native instruction, so we must promote
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; to i64 first.
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define float @f1(i32 %i) {
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; CHECK-LABEL: f1:
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; CHECK: llgfr [[REGISTER:%r[0-5]]], %r2
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; CHECK: cegbr %f0, [[REGISTER]]
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; CHECK: br %r14
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%conv = uitofp i32 %i to float
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ret float %conv
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}
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; Check i32->f64.
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define double @f2(i32 %i) {
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; CHECK-LABEL: f2:
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; CHECK: llgfr [[REGISTER:%r[0-5]]], %r2
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; CHECK: cdgbr %f0, [[REGISTER]]
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; CHECK: br %r14
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%conv = uitofp i32 %i to double
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ret double %conv
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}
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; Check i32->f128.
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define void @f3(i32 %i, ptr %dst) {
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; CHECK-LABEL: f3:
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; CHECK: llgfr [[REGISTER:%r[0-5]]], %r2
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; CHECK: cxgbr %f0, [[REGISTER]]
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; CHECK: std %f0, 0(%r3)
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; CHECK: std %f2, 8(%r3)
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; CHECK: br %r14
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%conv = uitofp i32 %i to fp128
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store fp128 %conv, ptr %dst
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ret void
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}
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