diff options
Diffstat (limited to 'src/mesa/drivers/dri/r300/compiler/radeon_program_alu.c')
| -rw-r--r-- | src/mesa/drivers/dri/r300/compiler/radeon_program_alu.c | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/src/mesa/drivers/dri/r300/compiler/radeon_program_alu.c b/src/mesa/drivers/dri/r300/compiler/radeon_program_alu.c index c922d3d9a4..3cc2897293 100644 --- a/src/mesa/drivers/dri/r300/compiler/radeon_program_alu.c +++ b/src/mesa/drivers/dri/r300/compiler/radeon_program_alu.c @@ -973,3 +973,32 @@ int radeonTransformDeriv(struct radeon_compiler* c, return 1; } + +/** + * IF Temp[0].x -\ + * KILP - > KIL -abs(Temp[0].x) + * ENDIF -/ + * + * This needs to be done in its own pass, because it modifies the instructions + * before and after KILP. + */ +void radeonTransformKILP(struct radeon_compiler * c) +{ + struct rc_instruction * inst; + for (inst = c->Program.Instructions.Next; + inst != &c->Program.Instructions; inst = inst->Next) { + + if (inst->U.I.Opcode != RC_OPCODE_KILP + || inst->Prev->U.I.Opcode != RC_OPCODE_IF + || inst->Next->U.I.Opcode != RC_OPCODE_ENDIF) { + continue; + } + inst->U.I.Opcode = RC_OPCODE_KIL; + inst->U.I.SrcReg[0] = negate(absolute(inst->Prev->U.I.SrcReg[0])); + + /* Remove IF */ + rc_remove_instruction(inst->Prev); + /* Remove ENDIF */ + rc_remove_instruction(inst->Next); + } +} |