Mesa (nv50-compiler): nv50: don't eliminate loads to dedicated values
Christoph Bumiller
chrisbmr at kemper.freedesktop.org
Wed Aug 4 22:49:20 UTC 2010
Module: Mesa
Branch: nv50-compiler
Commit: 2c695d38e6b194572becf82300fba5e34b1fd7d7
URL: http://cgit.freedesktop.org/mesa/mesa/commit/?id=2c695d38e6b194572becf82300fba5e34b1fd7d7
Author: Christoph Bumiller <e0425955 at student.tuwien.ac.at>
Date: Sat Jul 31 20:56:42 2010 +0200
nv50: don't eliminate loads to dedicated values
---
src/gallium/drivers/nv50/nv50_pc_optimize.c | 10 ++++------
1 files changed, 4 insertions(+), 6 deletions(-)
diff --git a/src/gallium/drivers/nv50/nv50_pc_optimize.c b/src/gallium/drivers/nv50/nv50_pc_optimize.c
index 1f2f163..324f8bb 100644
--- a/src/gallium/drivers/nv50/nv50_pc_optimize.c
+++ b/src/gallium/drivers/nv50/nv50_pc_optimize.c
@@ -639,12 +639,10 @@ nv_pass_reload_elim(struct nv_pass_reld_elim *ctx, struct nv_basic_block *b)
break;
if (it) {
-#if 1
- nvcg_replace_value(ctx->pc, ld->def[0], it->value);
-#else
- ld->opcode = NV_OP_MOV;
- nv_reference(ctx->pc, &ld->src[0], it->value);
-#endif
+ if (ld->def[0]->reg.id >= 0)
+ it->value = ld->def[0];
+ else
+ nvcg_replace_value(ctx->pc, ld->def[0], it->value);
} else {
if (ctx->alloc == LOAD_RECORD_POOL_SIZE)
continue;
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