[llvm-commits] [cfe-commits] [PATCH] Add llvm.fmuladd intrinsic.

[John McCall]

On May 31, 2012, at 7:22 PM, Lang Hames wrote:
> Thanks for the suggestion Matthieu. I spoke to Doug and he recommended using attributes rather than a FunctionDecl bit to represent the fp_contract state.

Hmm.  I had suggested a bit on FunctionDecl on the assumption that this would often be controlled globally, maybe by using a flag to control the default or by activating a #pragma before including all the headers.  Actually, I could even imagine a target (maybe a GPU target?) even opting-in to this behavior by default.  If we're going to use an Attr, we need to make sure it doesn't get added unless the current #pragma state is different from the global default;  we really don't want to be allocating an attribute for every function definition in the translation unit.

John.