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62 lines
2.5 KiB
LLVM
62 lines
2.5 KiB
LLVM
; Test conversions between different-sized float elements.
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;
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; RUN: llc < %s -mtriple=s390x-linux-gnu -mcpu=z13 | FileCheck %s
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declare <2 x float> @llvm.experimental.constrained.fptrunc.v2f32.v2f64(<2 x double>, metadata, metadata)
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declare float @llvm.experimental.constrained.fptrunc.f32.f64(double, metadata, metadata)
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declare <2 x double> @llvm.experimental.constrained.fpext.v2f64.v2f32(<2 x float>, metadata)
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declare double @llvm.experimental.constrained.fpext.f64.f32(float, metadata)
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; Test cases where both elements of a v2f64 are converted to f32s.
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define void @f1(<2 x double> %val, <2 x float> *%ptr) #0 {
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; CHECK-LABEL: f1:
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; CHECK: vledb {{%v[0-9]+}}, %v24, 0, 0
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; CHECK: br %r14
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%res = call <2 x float> @llvm.experimental.constrained.fptrunc.v2f32.v2f64(
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<2 x double> %val,
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metadata !"round.dynamic",
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metadata !"fpexcept.strict") #0
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store <2 x float> %res, <2 x float> *%ptr
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ret void
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}
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; Test conversion of an f64 in a vector register to an f32.
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define float @f2(<2 x double> %vec) #0 {
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; CHECK-LABEL: f2:
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; CHECK: wledb %f0, %v24, 0, 0
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; CHECK: br %r14
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%scalar = extractelement <2 x double> %vec, i32 0
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%ret = call float @llvm.experimental.constrained.fptrunc.f32.f64(
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double %scalar,
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metadata !"round.dynamic",
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metadata !"fpexcept.strict") #0
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ret float %ret
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}
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; Test cases where even elements of a v4f32 are converted to f64s.
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define <2 x double> @f3(<4 x float> %vec) #0 {
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; CHECK-LABEL: f3:
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; CHECK: vldeb %v24, {{%v[0-9]+}}
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; CHECK: br %r14
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%shuffle = shufflevector <4 x float> %vec, <4 x float> undef, <2 x i32> <i32 0, i32 2>
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%res = call <2 x double> @llvm.experimental.constrained.fpext.v2f64.v2f32(
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<2 x float> %shuffle,
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metadata !"fpexcept.strict") #0
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ret <2 x double> %res
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}
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; Test conversion of an f32 in a vector register to an f64.
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define double @f4(<4 x float> %vec) #0 {
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; CHECK-LABEL: f4:
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; CHECK: wldeb %f0, %v24
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; CHECK: br %r14
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%scalar = extractelement <4 x float> %vec, i32 0
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%ret = call double @llvm.experimental.constrained.fpext.f64.f32(
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float %scalar,
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metadata !"fpexcept.strict") #0
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ret double %ret
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}
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attributes #0 = { strictfp }
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