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| author | Eric Anholt <eric@anholt.net> | 2014-01-18 10:36:28 -0800 |
|---|---|---|
| committer | Eric Anholt <eric@anholt.net> | 2014-02-07 12:46:47 -0800 |
| commit | 2c2aa353366c610382273bea10656e6d6960ce3b (patch) | |
| tree | fbdb2c7a47b6b5c7c441554977b9c0d407d9c129 /src/glsl/opt_algebraic.cpp | |
| parent | 0f6279bab29614e3764a333242680ead78068d91 (diff) | |
| download | external_mesa3d-2c2aa353366c610382273bea10656e6d6960ce3b.zip external_mesa3d-2c2aa353366c610382273bea10656e6d6960ce3b.tar.gz external_mesa3d-2c2aa353366c610382273bea10656e6d6960ce3b.tar.bz2 | |
glsl: Optimize ~~x into x.
v2: Fix pasteo of an extra abs being inserted (caught by many). Rewrite
to drop the silly switch statement.
Reviewed-by: Matt Turner <mattst88@gmail.com> (v1)
Diffstat (limited to 'src/glsl/opt_algebraic.cpp')
| -rw-r--r-- | src/glsl/opt_algebraic.cpp | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/src/glsl/opt_algebraic.cpp b/src/glsl/opt_algebraic.cpp index d1f6435..681973d 100644 --- a/src/glsl/opt_algebraic.cpp +++ b/src/glsl/opt_algebraic.cpp @@ -218,6 +218,11 @@ ir_algebraic_visitor::handle_expression(ir_expression *ir) this->mem_ctx = ralloc_parent(ir); switch (ir->operation) { + case ir_unop_bit_not: + if (op_expr[0] && op_expr[0]->operation == ir_unop_bit_not) + return op_expr[0]->operands[0]; + break; + case ir_unop_abs: if (op_expr[0] == NULL) break; |