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...how to fix the microblaze calling convention or point me in the right direction on how to fix it? The lines in the .bc that I believe to be causing the problem are the following: %196 = call %0 @_Z13gatherDiffuseRK3vecS_S1_RKfS3_Pii(%struct.vec* %normal, double %tmp629, float %174, %struct.vec* %light_position, float* %nohit, float* %epsilon, i32* %66, i32 %5) nounwind and define linkonce_odr %0 @_Z13gatherDiffuseRK3vecS_S1_RKfS3_Pii(%struct.vec* nocapture %normal, double %hit_point.0, float %hit_point.1, %struct.vec* nocapture %light_position, float* nocapture %nohit, float* nocapture %epsilon, i32...

>> I don't think my backend is modified enough from the MBlaze backend that is >> in the release to be causing this error. I am however looking through the >> various files of the backend to try to find where the calling convention >> might be causing problems with f32 data types. > Form the backtrace it seems like you haven't defined how to return f32 > stuff

...quot;refuses to compile" mean? I.e. what error do you get? Ciao, Duncan. > > The lines in the .bc that I believe to be causing the problem are the following: > > %196 = call %0 @_Z13gatherDiffuseRK3vecS_S1_RKfS3_Pii(%struct.vec* %normal, double %tmp629, float %174, %struct.vec* %light_position, float* %nohit, float* %epsilon, i32* %66, i32 %5) nounwind > > and > > define linkonce_odr %0 @_Z13gatherDiffuseRK3vecS_S1_RKfS3_Pii(%struct.vec* nocapture %normal, double %hit_point.0, float %hit_point.1, %struct.vec* nocapture %light_position, float* nocapture %nohit, float* nocap...