Comment #4 on issue 3773 by [email protected]: V8 is not
-fsanitize=float-cast-overflow clean
https://code.google.com/p/v8/issues/detail?id=3773
Find a float-cast-overflow failure in src/conversions-inl.h,
src/conversions.h:
56: inline int FastD2I(double x) {
57: return static_cast<int32_t>(x);
58: }
src/conversions-inl.h:
86: int32_t DoubleToInt32(double x) {
87: int32_t i = FastD2I(x);
88: if (FastI2D(i) == x) return i;
FastD2I(x) gives undefined behavior when x is not contained in the interval
[INT_MIN, INT_MAX], even if there is check later at line 88.
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