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| author | Matt Turner <mattst88@gmail.com> | 2014-02-24 15:00:44 -0800 |
|---|---|---|
| committer | Matt Turner <mattst88@gmail.com> | 2014-02-28 10:36:06 -0800 |
| commit | ecc6c3d4ab31c6cd848bce02790000c165a02229 (patch) | |
| tree | 3732755c567d6cb332280fe0f7f29391b67b096c /src/glsl/opt_algebraic.cpp | |
| parent | 43dee0295e5da42425f1a3b6a3b3108173f4b676 (diff) | |
| download | external_mesa3d-ecc6c3d4ab31c6cd848bce02790000c165a02229.zip external_mesa3d-ecc6c3d4ab31c6cd848bce02790000c165a02229.tar.gz external_mesa3d-ecc6c3d4ab31c6cd848bce02790000c165a02229.tar.bz2 | |
glsl: Optimize lrp(0, y, a) into y * a.
Helps two programs in shader-db:
instructions in affected programs: 254 -> 234 (-7.87%)
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
Diffstat (limited to 'src/glsl/opt_algebraic.cpp')
| -rw-r--r-- | src/glsl/opt_algebraic.cpp | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/src/glsl/opt_algebraic.cpp b/src/glsl/opt_algebraic.cpp index 1b4d319..28f95a4 100644 --- a/src/glsl/opt_algebraic.cpp +++ b/src/glsl/opt_algebraic.cpp @@ -568,6 +568,8 @@ ir_algebraic_visitor::handle_expression(ir_expression *ir) return ir->operands[1]; } else if (ir->operands[0]->equals(ir->operands[1])) { return ir->operands[0]; + } else if (is_vec_zero(op_const[0])) { + return mul(ir->operands[1], ir->operands[2]); } break; |