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 5define 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 9; CHECK-NEXT: retq 10entry: 11 %0 = call i16 @llvm.convert.to.fp16.f32(float %a) 12 ret i16 %0 13} 14 15define 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 21entry: 22 %0 = trunc i32 %a to i16 23 %1 = call float @llvm.convert.from.fp16.f32(i16 %0) 24 ret float %1 25} 26 27declare i16 @llvm.convert.to.fp16.f32(float) 28declare float @llvm.convert.from.fp16.f32(i16) 29