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2015 Sep 08
2
Strange types on x86 vcvtph2ps and vcvtps2ph intrinsics
...#39;d like to understand why the types used
with these intrinsics are done this way.
For reference see ``include/llvm/IR/IntrinsicsX86.td``. Here are the
intrinsics of interest.
```
let TargetPrefix = "x86" in { // All intrinsics start with "llvm.x86.".
def int_x86_vcvtph2ps_128 : GCCBuiltin<"__builtin_ia32_vcvtph2ps">,
Intrinsic<[llvm_v4f32_ty], [llvm_v8i16_ty], [IntrNoMem]>;
def int_x86_vcvtph2ps_256 : GCCBuiltin<"__builtin_ia32_vcvtph2ps256">,
Intrinsic<[llvm_v8f32_ty], [llvm_v8i16_ty], [IntrNoMem]&g...