1; RUN: llc -fast-isel -fast-isel-abort=1 -asm-verbose=false -mtriple=x86_64-unknown-unknown -mattr=+f16c < %s | FileCheck %s
2; RUN: llc -fast-isel -fast-isel-abort=1 -asm-verbose=false -mtriple=x86_64-unknown-unknown -mattr=+avx512vl < %s | FileCheck %s
3
4; Verify that fast-isel correctly expands float-half conversions.
5
6define i16 @test_fp32_to_fp16(float %a) {
7; CHECK-LABEL: test_fp32_to_fp16:
8; CHECK: vcvtps2ph $4, %xmm0, %xmm0
9; CHECK-NEXT: vmovd %xmm0, %eax
10; CHECK-NEXT: retq
11entry:
12  %0 = call i16 @llvm.convert.to.fp16.f32(float %a)
13  ret i16 %0
14}
15
16define float @test_fp16_to_fp32(i32 %a) {
17; CHECK-LABEL: test_fp16_to_fp32:
18; CHECK: movzwl %di, %eax
19; CHECK-NEXT: vmovd %eax, %xmm0
20; CHECK-NEXT: vcvtph2ps %xmm0, %xmm0
21; CHECK-NEXT: retq
22entry:
23  %0 = trunc i32 %a to i16
24  %1 = call float @llvm.convert.from.fp16.f32(i16 %0)
25  ret float %1
26}
27
28declare i16 @llvm.convert.to.fp16.f32(float)
29declare float @llvm.convert.from.fp16.f32(i16)
30