diff options
| author | Dave Airlie <[email protected]> | 2018-01-10 02:56:15 +0000 |
|---|---|---|
| committer | Dave Airlie <[email protected]> | 2018-01-18 03:34:43 +0000 |
| commit | 7efcafce7c6dd3dc9e71c7d35d6f7ebfd88f106b (patch) | |
| tree | 4971a44a00c609e4c4acb7f5eadc0c43ab21bd13 | |
| parent | 2bd01adf146b3a16179a5b1305444305ce26ed2e (diff) | |
r600/shader: only emit add instruction if param has a value.
Just saves a pointless a = a + 0;
Reviewed-by: Roland Scheidegger <[email protected]>
Signed-off-by: Dave Airlie <[email protected]>
| -rw-r--r-- | src/gallium/drivers/r600/r600_shader.c | 14 |
1 files changed, 8 insertions, 6 deletions
diff --git a/src/gallium/drivers/r600/r600_shader.c b/src/gallium/drivers/r600/r600_shader.c index 623e6f7f704..cfc3400f925 100644 --- a/src/gallium/drivers/r600/r600_shader.c +++ b/src/gallium/drivers/r600/r600_shader.c @@ -2864,12 +2864,14 @@ static int r600_tess_factor_read(struct r600_shader_ctx *ctx, if (r) return r; - r = single_alu_op2(ctx, ALU_OP2_ADD_INT, - temp_reg, 0, - temp_reg, 0, - V_SQ_ALU_SRC_LITERAL, param * 16); - if (r) - return r; + if (param) { + r = single_alu_op2(ctx, ALU_OP2_ADD_INT, + temp_reg, 0, + temp_reg, 0, + V_SQ_ALU_SRC_LITERAL, param * 16); + if (r) + return r; + } do_lds_fetch_values(ctx, temp_reg, dreg, ((1u << nc) - 1)); return 0; |