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r600/sfn: correct error signalling in switch default case 

This is unreachable, and in release mode it should also indicated that
the function will not return something useful here. Also add a default
return value just in case a compiler doesn't support the "unreachable"
Thanks Dieter Nützel for pointing this error out.

Fixes: b6c17e2965621a46eb07ba2605d9f9e221a400b
  r600/sfn: lower IO for FS inputs and handle interpolation accordingly

Signed-off-by: Gert Wollny <gert.wollny@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/7820>
This commit is contained in:
Gert Wollny 2020-11-28 10:12:21 +01:00
parent de353c1fbe
commit feaecbeeab
2 changed files with 2 additions and 3 deletions
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0
src/gallium/drivers/r600/sfn/sfn_nir_merge_stores.cpp Normal file
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5
src/gallium/drivers/r600/sfn/sfn_shader_fragment.cpp
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@ -95,15 +95,14 @@ unsigned barycentric_ij_index(nir_intrinsic_instr *instr)
case INTERP_MODE_SMOOTH:
case INTERP_MODE_COLOR:
return index;
break;
case INTERP_MODE_NOPERSPECTIVE:
return index + 3;
break;
case INTERP_MODE_FLAT:
case INTERP_MODE_EXPLICIT:
default:
assert(0 && "unknown/unsupported mode for load_interpolated");
unreachable("unknown/unsupported mode for load_interpolated");
}
return 0;
}
bool FragmentShaderFromNir::process_load_input(nir_intrinsic_instr *instr,