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| author | Eric Anholt <eric@anholt.net> | 2014-01-18 11:00:51 -0800 |
|---|---|---|
| committer | Eric Anholt <eric@anholt.net> | 2014-02-07 12:46:48 -0800 |
| commit | 44577c48573acdbc8a708e6613f367507e9eafc5 (patch) | |
| tree | 4dabf111ad4bcba72ad08b6e0c1da0b2ebbf994b /src/glsl/opt_algebraic.cpp | |
| parent | d72956790fed5f62b8eea5938ed432544530f7bd (diff) | |
| download | external_mesa3d-44577c48573acdbc8a708e6613f367507e9eafc5.zip external_mesa3d-44577c48573acdbc8a708e6613f367507e9eafc5.tar.gz external_mesa3d-44577c48573acdbc8a708e6613f367507e9eafc5.tar.bz2 | |
glsl: Optimize lrp(x, x, coefficient) --> x.
total instructions in shared programs: 1627754 -> 1624534 (-0.20%)
instructions in affected programs: 45748 -> 42528 (-7.04%)
GAINED: 3
LOST: 0
(serious sam, humus domino demo)
Reviewed-by: Matt Turner <mattst88@gmail.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 953b03c..392051f 100644 --- a/src/glsl/opt_algebraic.cpp +++ b/src/glsl/opt_algebraic.cpp @@ -553,6 +553,8 @@ ir_algebraic_visitor::handle_expression(ir_expression *ir) return ir->operands[0]; } else if (is_vec_one(op_const[2])) { return ir->operands[1]; + } else if (ir->operands[0]->equals(ir->operands[1])) { + return ir->operands[0]; } break; |