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