From: Rob Clark Date: Thu, 26 Apr 2018 18:52:09 +0000 (-0400) Subject: freedreno/ir3: propagate HALF flag across fanout X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=a52e69821902f1eeac1f330113fab61da932dd2a;p=mesa.git freedreno/ir3: propagate HALF flag across fanout If we have a fanout (split) meta instruction to split the result of a vector instruction, propagate the HALF flag back to the original instruction. Otherwise result ends up in a full precision register while instruction(s) that use the result look in a half-precision register. Signed-off-by: Rob Clark --- diff --git a/src/gallium/drivers/freedreno/ir3/ir3_compiler_nir.c b/src/gallium/drivers/freedreno/ir3/ir3_compiler_nir.c index 3feb1ce0a5c..186171960e7 100644 --- a/src/gallium/drivers/freedreno/ir3/ir3_compiler_nir.c +++ b/src/gallium/drivers/freedreno/ir3/ir3_compiler_nir.c @@ -495,7 +495,10 @@ put_dst(struct ir3_context *ctx, nir_dest *dst) if (bit_size < 32) { for (unsigned i = 0; i < ctx->last_dst_n; i++) { - ctx->last_dst[i]->regs[0]->flags |= IR3_REG_HALF; + struct ir3_instruction *dst = ctx->last_dst[i]; + dst->regs[0]->flags |= IR3_REG_HALF; + if (ctx->last_dst[i]->opc == OPC_META_FO) + dst->regs[1]->instr->regs[0]->flags |= IR3_REG_HALF; } }