Improved skslc optimizer, particularly around vectors.

BUG=skia:

Change-Id: Idb364d9198f2ff84aad1eb68e236fb45ec1c86b7
Reviewed-on: https://skia-review.googlesource.com/8000
Commit-Queue: Ethan Nicholas <ethannicholas@google.com>
Reviewed-by: Ben Wagner <benjaminwagner@google.com>

1 files changed, 8 insertions, 3 deletions

diff --git a/src/sksl/ir/SkSLFloatLiteral.h b/src/sksl/ir/SkSLFloatLiteral.h
index 5ed123575b..8f83e2866c 100644
--- a/src/sksl/ir/SkSLFloatLiteral.h
+++ b/src/sksl/ir/SkSLFloatLiteral.h
@@ -17,14 +17,19 @@ namespace SkSL {
  * A literal floating point number.
  */
 struct FloatLiteral : public Expression {
-    FloatLiteral(const Context& context, Position position, double value)
-    : INHERITED(position, kFloatLiteral_Kind, *context.fFloat_Type)
+    FloatLiteral(const Context& context, Position position, double value,
+                 const Type* type = nullptr)
+    : INHERITED(position, kFloatLiteral_Kind, type ? *type : *context.fFloat_Type)
     , fValue(value) {}
 
-    virtual String description() const override {
+    String description() const override {
         return to_string(fValue);
     }
 
+    bool hasSideEffects() const override {
+        return false;
+    }
+
     bool isConstant() const override {
         return true;
     }