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intel/fs: Retype dest to match value in read[First]Invocation

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This is what we really wanted all along.  Always retyping to D works
because that's what get_nir_src() always gives us, at least for 32-bit
types.  The SPIR-V variants of these operations accept arbitrary types
and we need this if we're going to handle 64 or 16-bit values.

Reviewed-by: Iago Toral Quiroga <itoral@igalia.com>
This commit is contained in:
Jason Ekstrand
2017-09-01 22:37:42 -07:00
parent ebaee9da4a
commit 103081c9a9
1 changed files with 2 additions and 4 deletions
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6
src/intel/compiler/brw_fs_nir.cpp
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@@ -4307,15 +4307,13 @@ fs_visitor::nir_emit_intrinsic(const fs_builder &bld, nir_intrinsic_instr *instr
bld.exec_all().emit(SHADER_OPCODE_BROADCAST, tmp, value,
bld.emit_uniformize(invocation));
bld.MOV(retype(dest, BRW_REGISTER_TYPE_D),
fs_reg(component(tmp, 0)));
bld.MOV(retype(dest, value.type), fs_reg(component(tmp, 0)));
break;
}
case nir_intrinsic_read_first_invocation: {
const fs_reg value = get_nir_src(instr->src[0]);
bld.MOV(retype(dest, BRW_REGISTER_TYPE_D),
bld.emit_uniformize(value));
bld.MOV(retype(dest, value.type), bld.emit_uniformize(value));
break;
}