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-rw-r--r--src/glsl/ir_constant_expression.cpp4
1 files changed, 4 insertions, 0 deletions
diff --git a/src/glsl/ir_constant_expression.cpp b/src/glsl/ir_constant_expression.cpp
index 2276f4d32e..301bfa8025 100644
--- a/src/glsl/ir_constant_expression.cpp
+++ b/src/glsl/ir_constant_expression.cpp
@@ -817,6 +817,10 @@ ir_call::constant_expression_value()
return new(mem_ctx) ir_constant(true);
}
return new(mem_ctx) ir_constant(false);
+ } else if (strcmp(callee, "acos") == 0) {
+ assert(op[0]->type->is_float());
+ for (unsigned c = 0; c < op[0]->type->components(); c++)
+ data.f[c] = acosf(op[0]->value.f[c]);
} else if (strcmp(callee, "asin") == 0) {
assert(op[0]->type->is_float());
for (unsigned c = 0; c < op[0]->type->components(); c++)