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