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authorEric Anholt <[email protected]>2010-08-23 12:21:33 -0700
committerEric Anholt <[email protected]>2010-08-23 13:05:53 -0700
commit5e9ac94cc44ef4f97063d7b696411b2a4be16f36 (patch)
tree0efbbc6d6f05a37a380bc380d6f3139580e7b1b8 /src/glsl/ir_constant_expression.cpp
parent47003a8f653db881fbafc96fca93aba38ea3ebc2 (diff)
mesa: Add new ir_unop_any() expression operation.
The previous any() implementation would generate arg0.x || arg0.y || arg0.z. Having an expression operation for this makes it easy for the backend to generate something easier (DPn + SNE for 915 FS, .any predication on 965 VS)
Diffstat (limited to 'src/glsl/ir_constant_expression.cpp')
-rw-r--r--src/glsl/ir_constant_expression.cpp9
1 files changed, 9 insertions, 0 deletions
diff --git a/src/glsl/ir_constant_expression.cpp b/src/glsl/ir_constant_expression.cpp
index 54f14d1a541..942f1983607 100644
--- a/src/glsl/ir_constant_expression.cpp
+++ b/src/glsl/ir_constant_expression.cpp
@@ -149,6 +149,15 @@ ir_expression::constant_expression_value()
}
break;
+ case ir_unop_any:
+ assert(op[0]->type->is_boolean());
+ data.b[0] = false;
+ for (unsigned c = 0; c < op[0]->type->components(); c++) {
+ if (op[0]->value.b[c])
+ data.b[0] = true;
+ }
+ break;
+
case ir_unop_trunc:
assert(op[0]->type->base_type == GLSL_TYPE_FLOAT);
for (unsigned c = 0; c < op[0]->type->components(); c++) {