| ; 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, <2 x float> *%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, <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) #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 } |