Mesa (master): r300/compiler: Handle SGT and SLE at the beginning of loops.
Marek Olšák
mareko at kemper.freedesktop.org
Fri Jun 11 20:24:02 UTC 2010
Module: Mesa
Branch: master
Commit: f7269cf26a966daf555b12bffc08d862dc34528d
URL: http://cgit.freedesktop.org/mesa/mesa/commit/?id=f7269cf26a966daf555b12bffc08d862dc34528d
Author: Tom Stellard <tstellar at gmail.com>
Date: Tue Jun 8 00:16:38 2010 -0700
r300/compiler: Handle SGT and SLE at the beginning of loops.
---
.../dri/r300/compiler/radeon_emulate_loops.c | 14 +++++++++++---
1 files changed, 11 insertions(+), 3 deletions(-)
diff --git a/src/mesa/drivers/dri/r300/compiler/radeon_emulate_loops.c b/src/mesa/drivers/dri/r300/compiler/radeon_emulate_loops.c
index 28b9684..7e1ab5e 100644
--- a/src/mesa/drivers/dri/r300/compiler/radeon_emulate_loops.c
+++ b/src/mesa/drivers/dri/r300/compiler/radeon_emulate_loops.c
@@ -297,10 +297,12 @@ static int transform_const_loop(struct emulate_loop_state * s,
/* Remove the first 4 instructions inside the loop, which are part
* of the conditional and no longer needed.
*/
- /* SLT/SGE */
+ /* SLT/SGE/SGT/SLE */
if(loop->BeginLoop->Next->U.I.Opcode != RC_OPCODE_SLT &&
- loop->BeginLoop->Next->U.I.Opcode != RC_OPCODE_SGE){
- rc_error(s->C,"Unexpected instruction, expected SLT/SGE\n");
+ loop->BeginLoop->Next->U.I.Opcode != RC_OPCODE_SGE &&
+ loop->BeginLoop->Next->U.I.Opcode != RC_OPCODE_SGT &&
+ loop->BeginLoop->Next->U.I.Opcode != RC_OPCODE_SLE){
+ rc_error(s->C,"Unexpected instruction, expected LT,GT,LE,GE\n");
return 0;
}
/* IF */
@@ -364,6 +366,12 @@ static struct rc_instruction * transform_loop(struct emulate_loop_state * s,
case RC_OPCODE_SLT:
ptr->U.I.Opcode = RC_OPCODE_SGE;
break;
+ case RC_OPCODE_SLE:
+ ptr->U.I.Opcode = RC_OPCODE_SGT;
+ break;
+ case RC_OPCODE_SGT:
+ ptr->U.I.Opcode = RC_OPCODE_SLE;
+ break;
default:
rc_error(s->C,
"Loop does not start with a conditional instruction.");
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