48 lines
1.7 KiB
LLVM
48 lines
1.7 KiB
LLVM
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; Test strict conversions of unsigned i64s 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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declare float @llvm.experimental.constrained.uitofp.f32.i64(i64, metadata, metadata)
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declare double @llvm.experimental.constrained.uitofp.f64.i64(i64, metadata, metadata)
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declare fp128 @llvm.experimental.constrained.uitofp.f128.i64(i64, metadata, metadata)
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; Test i64->f32. There's no native support for unsigned i64-to-fp conversions,
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; but we should be able to implement them using signed i64-to-fp conversions.
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define float @f1(i64 %i) #0 {
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; CHECK-LABEL: f1:
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; CHECK: cegbr
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; CHECK: aebr
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; CHECK: br %r14
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%conv = call float @llvm.experimental.constrained.uitofp.f32.i64(i64 %i,
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metadata !"round.dynamic",
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metadata !"fpexcept.strict") #0
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ret float %conv
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}
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; Test i64->f64.
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define double @f2(i64 %i) #0 {
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; CHECK-LABEL: f2:
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; CHECK: cdgbr
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; CHECK: adbr
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; CHECK: br %r14
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%conv = call double @llvm.experimental.constrained.uitofp.f64.i64(i64 %i,
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metadata !"round.dynamic",
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metadata !"fpexcept.strict") #0
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ret double %conv
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}
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; Test i64->f128.
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define void @f3(i64 %i, fp128 *%dst) #0 {
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; CHECK-LABEL: f3:
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; CHECK: cxgbr
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; CHECK: axbr
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; CHECK: br %r14
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%conv = call fp128 @llvm.experimental.constrained.uitofp.f128.i64(i64 %i,
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metadata !"round.dynamic",
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metadata !"fpexcept.strict") #0
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store fp128 %conv, fp128 *%dst
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ret void
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}
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attributes #0 = { strictfp }
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