summaryrefslogtreecommitdiffstats
path: root/src
diff options
context:
space:
mode:
authorMarek Olšák <maraeo@gmail.com>2010-09-02 10:21:23 +0200
committerMarek Olšák <maraeo@gmail.com>2010-09-04 18:56:22 +0200
commitaa554d508b03ee54f2553200d0d43c78b3982e44 (patch)
treeac75cd8ef76cbe3b5bfdeb8a599e9027d3384f44 /src
parentf90c870304ad7222779c3e3bed0e2bbd4214d0cf (diff)
r300/compiler: disable deadcode elimination for indexed dst operands
Diffstat (limited to 'src')
-rw-r--r--src/mesa/drivers/dri/r300/compiler/radeon_dataflow_deadcode.c14
1 files changed, 14 insertions, 0 deletions
diff --git a/src/mesa/drivers/dri/r300/compiler/radeon_dataflow_deadcode.c b/src/mesa/drivers/dri/r300/compiler/radeon_dataflow_deadcode.c
index 701092b625e..9d17b4772ad 100644
--- a/src/mesa/drivers/dri/r300/compiler/radeon_dataflow_deadcode.c
+++ b/src/mesa/drivers/dri/r300/compiler/radeon_dataflow_deadcode.c
@@ -220,6 +220,18 @@ void rc_dataflow_deadcode(struct radeon_compiler * c, void *user)
unsigned has_temp_reladdr_src = 0;
rc_dataflow_mark_outputs_fn dce = (rc_dataflow_mark_outputs_fn)user;
+ /* Give up if there is relative addressing of destination operands. */
+ for(struct rc_instruction * inst = c->Program.Instructions.Next;
+ inst != &c->Program.Instructions;
+ inst = inst->Next) {
+ const struct rc_opcode_info *opcode = rc_get_opcode_info(inst->U.I.Opcode);
+ if (opcode->HasDstReg &&
+ inst->U.I.DstReg.WriteMask &&
+ inst->U.I.DstReg.RelAddr) {
+ return;
+ }
+ }
+
memset(&s, 0, sizeof(s));
s.C = c;
@@ -316,6 +328,7 @@ void rc_dataflow_deadcode(struct radeon_compiler * c, void *user)
for (struct rc_instruction *ptr = inst->Prev;
ptr != &c->Program.Instructions;
ptr = ptr->Prev) {
+ opcode = rc_get_opcode_info(ptr->U.I.Opcode);
if (opcode->HasDstReg &&
ptr->U.I.DstReg.File == RC_FILE_TEMPORARY &&
ptr->U.I.DstReg.WriteMask) {
@@ -327,6 +340,7 @@ void rc_dataflow_deadcode(struct radeon_compiler * c, void *user)
}
has_temp_reladdr_src = 1;
+ break;
}
}
}