pass -fArray[i] instead of fArray[i], to skip a compiler optimization where it

thought it could tread the memory as if it pointed to an int instead of a float.



git-svn-id: http://skia.googlecode.com/svn/trunk@4240 2bbb7eff-a529-9590-31e7-b0007b416f81

1 files changed, 3 insertions, 1 deletions

diff --git a/bench/ScalarBench.cpp b/bench/ScalarBench.cpp
index fe14251b65..c03f9ca9d7 100644
--- a/bench/ScalarBench.cpp
+++ b/bench/ScalarBench.cpp
@@ -112,7 +112,9 @@ protected:
     virtual void performTest() SK_OVERRIDE {
         int sum = 0;
         for (size_t i = 0; i < ARRAY_N; ++i) {
-            sum += SkScalarIsFinite(fArray[i]);
+            // We pass -fArray[i], so the compiler can't cheat and treat the
+            // value as an int (even though we tell it that it is a float)
+            sum += SkScalarIsFinite(-fArray[i]);
         }
         // we do this so the compiler won't optimize our loop away...
         this->doSomething(fArray, sum);