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pan/mdg: Don't double-replicate blend on T720

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We already do this unconditionally in NIR.

Signed-off-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/5305>
This commit is contained in:
Alyssa Rosenzweig 2020-06-02 18:12:14 -04:00 • committed by Marge Bot
parent edd56bad94
commit 7ac617c117
1 changed files with 1 additions and 21 deletions
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22
src/panfrost/midgard/midgard_compile.c
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@ -1719,27 +1719,7 @@ emit_intrinsic(compiler_context *ctx, nir_intrinsic_instr *instr)
case nir_intrinsic_store_raw_output_pan:
assert (ctx->stage == MESA_SHADER_FRAGMENT);
reg = nir_src_index(ctx, &instr->src[0]);
if (ctx->quirks & MIDGARD_OLD_BLEND) {
/* Suppose reg = qr0.xyzw. That means 4 8-bit ---> 1 32-bit. So
* reg = r0.x. We want to splatter. So we can do a 32-bit move
* of:
*
* imov r0.xyzw, r0.xxxx
*/
unsigned expanded = make_compiler_temp(ctx);
midgard_instruction splatter = v_mov(reg, expanded);
for (unsigned c = 0; c < 16; ++c)
splatter.swizzle[1][c] = 0;
emit_mir_instruction(ctx, splatter);
emit_fragment_store(ctx, expanded, ctx->blend_rt);
} else
emit_fragment_store(ctx, reg, ctx->blend_rt);
emit_fragment_store(ctx, reg, ctx->blend_rt);
break;
case nir_intrinsic_store_global: