1 ; RUN: llc -fast-isel -fast-isel-abort=1 -asm-verbose=false -mtriple=x86_64-unknown-unknown -mattr=+f16c < %s | FileCheck %s
3 ; Verify that fast-isel correctly expands float-half conversions.
5 define i16 @test_fp32_to_fp16(float %a) {
6 ; CHECK-LABEL: test_fp32_to_fp16:
7 ; CHECK: vcvtps2ph $4, %xmm0, %xmm0
8 ; CHECK-NEXT: vmovd %xmm0, %eax
11 %0 = call i16 @llvm.convert.to.fp16.f32(float %a)
15 define float @test_fp16_to_fp32(i32 %a) {
16 ; CHECK-LABEL: test_fp16_to_fp32:
17 ; CHECK: movswl %di, %eax
18 ; CHECK-NEXT: vmovd %eax, %xmm0
19 ; CHECK-NEXT: vcvtph2ps %xmm0, %xmm0
22 %0 = trunc i32 %a to i16
23 %1 = call float @llvm.convert.from.fp16.f32(i16 %0)
27 declare i16 @llvm.convert.to.fp16.f32(float)
28 declare float @llvm.convert.from.fp16.f32(i16)