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