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