| ; Test strict conversions of unsigned i32s to floating-point values (z10 only). |
| ; |
| ; RUN: llc < %s -mtriple=s390x-linux-gnu -mcpu=z10 | FileCheck %s |
| |
| declare float @llvm.experimental.constrained.uitofp.f32.i32(i32, metadata, metadata) |
| declare double @llvm.experimental.constrained.uitofp.f64.i32(i32, metadata, metadata) |
| declare fp128 @llvm.experimental.constrained.uitofp.f128.i32(i32, metadata, metadata) |
| |
| ; Check i32->f32. There is no native instruction, so we must promote |
| ; to i64 first. |
| define float @f1(i32 %i) #0 { |
| ; CHECK-LABEL: f1: |
| ; CHECK: llgfr [[REGISTER:%r[0-5]]], %r2 |
| ; CHECK: cegbr %f0, [[REGISTER]] |
| ; CHECK: br %r14 |
| %conv = call float @llvm.experimental.constrained.uitofp.f32.i32(i32 %i, |
| metadata !"round.dynamic", |
| metadata !"fpexcept.strict") #0 |
| ret float %conv |
| } |
| |
| ; Check i32->f64. |
| define double @f2(i32 %i) #0 { |
| ; CHECK-LABEL: f2: |
| ; CHECK: llgfr [[REGISTER:%r[0-5]]], %r2 |
| ; CHECK: cdgbr %f0, [[REGISTER]] |
| ; CHECK: br %r14 |
| %conv = call double @llvm.experimental.constrained.uitofp.f64.i32(i32 %i, |
| metadata !"round.dynamic", |
| metadata !"fpexcept.strict") #0 |
| ret double %conv |
| } |
| |
| ; Check i32->f128. |
| define void @f3(i32 %i, ptr %dst) #0 { |
| ; CHECK-LABEL: f3: |
| ; CHECK: llgfr [[REGISTER:%r[0-5]]], %r2 |
| ; CHECK: cxgbr %f0, [[REGISTER]] |
| ; CHECK: std %f0, 0(%r3) |
| ; CHECK: std %f2, 8(%r3) |
| ; CHECK: br %r14 |
| %conv = call fp128 @llvm.experimental.constrained.uitofp.f128.i32(i32 %i, |
| metadata !"round.dynamic", |
| metadata !"fpexcept.strict") #0 |
| store fp128 %conv, ptr %dst |
| ret void |
| } |
| |
| attributes #0 = { strictfp } |