diff options
| author | Matt Turner <[email protected]> | 2014-10-26 10:31:21 -0700 |
|---|---|---|
| committer | Matt Turner <[email protected]> | 2014-10-29 21:35:46 -0700 |
| commit | 601a134180f4b0c5b02f6866dddc3ab220feb831 (patch) | |
| tree | 7e4628cd41744ada5e219b34463de7150f5176e4 | |
| parent | b65bd9583b9fe0080b5664df2a80d2084499e3c2 (diff) | |
i965/vec4: Perform CSE on MAD instructions with final arguments switched.
Reviewed-by: Kenneth Graunke <[email protected]>
| -rw-r--r-- | src/mesa/drivers/dri/i965/brw_vec4_cse.cpp | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/src/mesa/drivers/dri/i965/brw_vec4_cse.cpp b/src/mesa/drivers/dri/i965/brw_vec4_cse.cpp index 28c69ca69d1..630d3357a3f 100644 --- a/src/mesa/drivers/dri/i965/brw_vec4_cse.cpp +++ b/src/mesa/drivers/dri/i965/brw_vec4_cse.cpp @@ -104,7 +104,11 @@ is_expression_commutative(enum opcode op) static bool operands_match(enum opcode op, src_reg *xs, src_reg *ys) { - if (!is_expression_commutative(op)) { + if (op == BRW_OPCODE_MAD) { + return xs[0].equals(ys[0]) && + ((xs[1].equals(ys[1]) && xs[2].equals(ys[2])) || + (xs[2].equals(ys[1]) && xs[1].equals(ys[2]))); + } else if (!is_expression_commutative(op)) { return xs[0].equals(ys[0]) && xs[1].equals(ys[1]) && xs[2].equals(ys[2]); } else { return (xs[0].equals(ys[0]) && xs[1].equals(ys[1])) || |