moorabbit wrote:

I couldn't get __builtin_convertvector to emit an 
[fpext](https://llvm.org/docs/LangRef.html#fpext-to-instruction) instruction 
instead of an 
[sitofp](https://llvm.org/docs/LangRef.html#sitofp-to-instruction) when 
converting a 16-bit half-precision float into a 32-bit float.

I tried to solve this by defining __v4hf and __v8hf types (vectors of 4 and 8 
half-precision floats) and casting the operand of __builtin_convertvector to 
one of them, so that Clang recognizes the vector elements as floating types 
rather than integers.

https://github.com/llvm/llvm-project/pull/152911
_______________________________________________
cfe-commits mailing list
cfe-commits@lists.llvm.org
https://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits

Reply via email to