Module: Mesa
Branch: 7.9
Commit: 930c168df600a745f1b0977e4a2355a1c26a91e7
URL:
http://cgit.freedesktop.org/mesa/mesa/commit/?id=930c168df600a745f1b0977e4a2355a1c26a91e7
Author: Tom Stellard <tstel...@gmail.com>
Date: Mon Nov 22 12:00:10 2010 -0800
r300/compiler: Use correct swizzles for all presubtract sources
---
.../drivers/dri/r300/compiler/radeon_optimize.c | 6 ++++++
1 files changed, 6 insertions(+), 0 deletions(-)
diff --git a/src/mesa/drivers/dri/r300/compiler/radeon_optimize.c
b/src/mesa/drivers/dri/r300/compiler/radeon_optimize.c
index 423ebbf..bebe806 100644
--- a/src/mesa/drivers/dri/r300/compiler/radeon_optimize.c
+++ b/src/mesa/drivers/dri/r300/compiler/radeon_optimize.c
@@ -566,6 +566,7 @@ static int presub_helper(
for(i = 0; i < info->NumSrcRegs; i++) {
unsigned int mask = src_reads_dst_mask(
inst->U.I.SrcReg[i], s->Inst->U.I.DstReg);
+ struct rc_src_register src = inst->U.I.SrcReg[i];
/* XXX We could be more aggressive here using
* presubtract. It is okay if SrcReg[i] only reads
* from some of the mask components. */
@@ -577,6 +578,11 @@ static int presub_helper(
continue;
}
}
+ src.File = RC_FILE_PRESUB;
+ if (!c->SwizzleCaps->IsNative(inst->U.I.Opcode, src)){
+ can_remove = 0;
+ break;
+ }
if (cant_sub || !can_use_presub) {
can_remove = 0;
break;
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