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aco: use p_create_vector(v2b,v2b) in get_alu_src_vop3p() 

Reviewed-by: Rhys Perry <pendingchaos02@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/13576>
This commit is contained in:
Daniel Schürmann 2021-10-26 18:11:30 +02:00 committed by Marge Bot
parent e56d8b0b2e
commit 7e02787a54
1 changed files with 10 additions and 1 deletions
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11
src/amd/compiler/aco_instruction_selection.cpp
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@ -780,7 +780,16 @@ get_alu_src_vop3p(struct isel_context* ctx, nir_alu_src src)
/* extract a full dword if possible */
if (tmp.bytes() >= (dword + 1) * 4) {
return emit_extract_vector(ctx, tmp, dword, RegClass(tmp.type(), 1));
/* if the source is splitted into components, use p_create_vector */
auto it = ctx->allocated_vec.find(tmp.id());
if (it != ctx->allocated_vec.end()) {
unsigned index = dword << 1;
Builder bld(ctx->program, ctx->block);
if (it->second[index].regClass() == v2b)
return bld.pseudo(aco_opcode::p_create_vector, bld.def(v1), it->second[index],
it->second[index + 1]);
}
return emit_extract_vector(ctx, tmp, dword, v1);
} else {
/* This must be a swizzled access to %a.zz where %a is v6b */
assert(((src.swizzle[0] | src.swizzle[1]) & 1) == 0);