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e14932b2ad
As of b1d8576 there is middle-end support for STRICT_[SU]INT_TO_FP, so this patch adds SystemZ back-end support as well. The patch is SystemZ target specific except for adding SD patterns strict_[su]int_to_fp and any_[su]int_to_fp to TargetSelectionDAG.td as usual.
87 lines
3.0 KiB
LLVM
87 lines
3.0 KiB
LLVM
; Test strict conversions of unsigned integers to floating-point values
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; (z196 and above).
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;
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; RUN: llc < %s -mtriple=s390x-linux-gnu -mcpu=z196 | FileCheck %s
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declare float @llvm.experimental.constrained.uitofp.f32.i32(i32, metadata, metadata)
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declare double @llvm.experimental.constrained.uitofp.f64.i32(i32, metadata, metadata)
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declare fp128 @llvm.experimental.constrained.uitofp.f128.i32(i32, metadata, metadata)
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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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; Check i32->f32.
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define float @f1(i32 %i) #0 {
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; CHECK-LABEL: f1:
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; CHECK: celfbr %f0, 0, %r2, 0
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; CHECK: br %r14
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%conv = call float @llvm.experimental.constrained.uitofp.f32.i32(i32 %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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; Check i32->f64.
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define double @f2(i32 %i) #0 {
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; CHECK-LABEL: f2:
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; CHECK: cdlfbr %f0, 0, %r2, 0
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; CHECK: br %r14
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%conv = call double @llvm.experimental.constrained.uitofp.f64.i32(i32 %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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; Check i32->f128.
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define void @f3(i32 %i, fp128 *%dst) #0 {
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; CHECK-LABEL: f3:
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; CHECK: cxlfbr %f0, 0, %r2, 0
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; CHECK-DAG: std %f0, 0(%r3)
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; CHECK-DAG: std %f2, 8(%r3)
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; CHECK: br %r14
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%conv = call fp128 @llvm.experimental.constrained.uitofp.f128.i32(i32 %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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; Check i64->f32.
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define float @f4(i64 %i) #0 {
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; CHECK-LABEL: f4:
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; CHECK: celgbr %f0, 0, %r2, 0
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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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; Check i64->f64.
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define double @f5(i64 %i) #0 {
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; CHECK-LABEL: f5:
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; CHECK: cdlgbr %f0, 0, %r2, 0
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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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; Check i64->f128.
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define void @f6(i64 %i, fp128 *%dst) #0 {
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; CHECK-LABEL: f6:
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; CHECK: cxlgbr %f0, 0, %r2, 0
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; CHECK-DAG: std %f0, 0(%r3)
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; CHECK-DAG: std %f2, 8(%r3)
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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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