| Mehdi Amini | 945a660 | 2015-02-27 18:32:11 +0000 | [diff] [blame] | 1 | ; RUN: llc -fast-isel -fast-isel-abort=1 -mtriple=x86_64-unknown-unknown -mattr=+f16c < %s |
| Andrea Di Biagio | 7035178 | 2015-02-20 19:37:14 +0000 | [diff] [blame] | 2 | |
| 3 | ; XFAIL: * |
| 4 | |
| 5 | ; In the future, we might want to teach fast-isel how to expand a double-to-half |
| 6 | ; conversion into a double-to-float conversion immediately followed by a |
| 7 | ; float-to-half conversion. For now, fast-isel is expected to fail. |
| 8 | |
| 9 | define double @test_fp16_to_fp64(i32 %a) { |
| 10 | entry: |
| 11 | %0 = trunc i32 %a to i16 |
| 12 | %1 = call double @llvm.convert.from.fp16.f64(i16 %0) |
| 13 | ret float %0 |
| 14 | } |
| 15 | |
| 16 | define i16 @test_fp64_to_fp16(double %a) { |
| 17 | entry: |
| 18 | %0 = call i16 @llvm.convert.to.fp16.f64(double %a) |
| 19 | ret i16 %0 |
| 20 | } |
| 21 | |
| 22 | declare i16 @llvm.convert.to.fp16.f64(double) |
| 23 | declare double @llvm.convert.from.fp16.f64(i16) |