diff options
| author | Stéphane Marchesin <[email protected]> | 2011-09-22 12:43:24 -0700 |
|---|---|---|
| committer | Stéphane Marchesin <[email protected]> | 2011-09-22 12:43:24 -0700 |
| commit | 687e62a5d76e2e4cbbc6268e5b0e3f148b681185 (patch) | |
| tree | 94271b7598d7190bf914277dd37fc2964051322b /src | |
| parent | 7cba40306eec79b54128ca3bf56aa96ae56c5fd4 (diff) | |
i915g: Fix peephole optimization for MOVs.
Diffstat (limited to 'src')
| -rw-r--r-- | src/gallium/drivers/i915/i915_fpc_optimize.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/src/gallium/drivers/i915/i915_fpc_optimize.c b/src/gallium/drivers/i915/i915_fpc_optimize.c index 50b3a28573c..0d680fbf876 100644 --- a/src/gallium/drivers/i915/i915_fpc_optimize.c +++ b/src/gallium/drivers/i915/i915_fpc_optimize.c @@ -62,6 +62,13 @@ static boolean same_src_reg(struct i915_full_src_register* d1, struct i915_full_ d1->Register.Negate == d2->Register.Negate); } +static boolean has_destination(unsigned opcode) +{ + return (opcode != TGSI_OPCODE_NOP && + opcode != TGSI_OPCODE_KIL && + opcode != TGSI_OPCODE_RET); +} + static boolean is_unswizzled(struct i915_full_src_register* r, unsigned write_mask) { @@ -192,6 +199,7 @@ static void i915_fpc_optimize_useless_mov(union i915_full_token* current, union if ( current->Token.Type == TGSI_TOKEN_TYPE_INSTRUCTION && next->Token.Type == TGSI_TOKEN_TYPE_INSTRUCTION && next->FullInstruction.Instruction.Opcode == TGSI_OPCODE_MOV && + has_destination(current->FullInstruction.Instruction.Opcode) && next->FullInstruction.Instruction.Saturate == TGSI_SAT_NONE && next->FullInstruction.Src[0].Register.Absolute == 0 && next->FullInstruction.Src[0].Register.Negate == 0 && |