diff options
| author | Eric Anholt <eric@anholt.net> | 2010-04-06 09:55:45 -0700 |
|---|---|---|
| committer | Eric Anholt <eric@anholt.net> | 2010-04-06 11:42:34 -0700 |
| commit | 85171c2dd8c7050511cb7708d75e574005262bf0 (patch) | |
| tree | 3b9b03df64b6b31ad1eba809104d15e560184bc9 /ir_constant_expression.cpp | |
| parent | 62735694a1dfc09a16ea32312877cd49c7982118 (diff) | |
Add ir_constant_expression.cpp support for <, >, <=, >=.
This results in folding one more constant expression in CorrectParse2.frag.
Diffstat (limited to 'ir_constant_expression.cpp')
| -rw-r--r-- | ir_constant_expression.cpp | 66 |
1 files changed, 66 insertions, 0 deletions
diff --git a/ir_constant_expression.cpp b/ir_constant_expression.cpp index 69a3613080..f90c69b72c 100644 --- a/ir_constant_expression.cpp +++ b/ir_constant_expression.cpp @@ -252,6 +252,72 @@ ir_constant_visitor::visit(ir_expression *ir) for (c = 0; c < ir->operands[0]->type->components(); c++) b[c] = op[0]->value.b[c] || op[1]->value.b[c]; break; + + case ir_binop_less: + type = glsl_type::bool_type; + switch (ir->operands[0]->type->base_type) { + case GLSL_TYPE_UINT: + b[0] = op[0]->value.u[0] < op[1]->value.u[0]; + break; + case GLSL_TYPE_INT: + b[0] = op[0]->value.i[0] < op[1]->value.i[0]; + break; + case GLSL_TYPE_FLOAT: + b[0] = op[0]->value.f[0] < op[1]->value.f[0]; + break; + default: + assert(0); + } + break; + case ir_binop_greater: + type = glsl_type::bool_type; + switch (ir->operands[0]->type->base_type) { + case GLSL_TYPE_UINT: + b[0] = op[0]->value.u[0] > op[1]->value.u[0]; + break; + case GLSL_TYPE_INT: + b[0] = op[0]->value.i[0] > op[1]->value.i[0]; + break; + case GLSL_TYPE_FLOAT: + b[0] = op[0]->value.f[0] > op[1]->value.f[0]; + break; + default: + assert(0); + } + break; + case ir_binop_lequal: + type = glsl_type::bool_type; + switch (ir->operands[0]->type->base_type) { + case GLSL_TYPE_UINT: + b[0] = op[0]->value.u[0] <= op[1]->value.u[0]; + break; + case GLSL_TYPE_INT: + b[0] = op[0]->value.i[0] <= op[1]->value.i[0]; + break; + case GLSL_TYPE_FLOAT: + b[0] = op[0]->value.f[0] <= op[1]->value.f[0]; + break; + default: + assert(0); + } + break; + case ir_binop_gequal: + type = glsl_type::bool_type; + switch (ir->operands[0]->type->base_type) { + case GLSL_TYPE_UINT: + b[0] = op[0]->value.u[0] >= op[1]->value.u[0]; + break; + case GLSL_TYPE_INT: + b[0] = op[0]->value.i[0] >= op[1]->value.i[0]; + break; + case GLSL_TYPE_FLOAT: + b[0] = op[0]->value.f[0] >= op[1]->value.f[0]; + break; + default: + assert(0); + } + break; + default: break; } |