begin to wrap all float divides
Bug: skia:7607 skia:6134
Change-Id: Id126e92816bef1df1372bd531238cda9f3b36fab
Reviewed-on: https://skia-review.googlesource.com/106261
Reviewed-by: Mike Klein <mtklein@chromium.org>
Commit-Queue: Mike Reed <reed@google.com>
diff --git a/include/private/SkFloatingPoint.h b/include/private/SkFloatingPoint.h
index bbb1179..a2e6ee5 100644
--- a/include/private/SkFloatingPoint.h
+++ b/include/private/SkFloatingPoint.h
@@ -190,4 +190,14 @@
#define SK_FLT_DECIMAL_DIG 9
#endif
+// IEEE defines how float divide behaves for non-finite values and zero-denoms, but C does not
+// so we have a helper that suppresses the possible undefined-behavior warnings.
+
+#ifdef __clang__
+__attribute__((no_sanitize("float-divide-by-zero")))
+#endif
+static inline float sk_ieee_float_divide(float numer, float denom) {
+ return numer / denom;
+}
+
#endif