spin off remaining integer overflow fixes
- Carmack rsqrt uses an int where it wants a uint32_t.
- turn off all santizers (including signed-integer-overflow) in third_party/externals/sftntly.
CQ_EXTRA_TRYBOTS=client.skia:Test-Ubuntu-GCC-GCE-CPU-AVX2-x86_64-Debug-ASAN-Trybot
BUG=skia:4635
Review URL: https://codereview.chromium.org/1511643002
diff --git a/bench/MathBench.cpp b/bench/MathBench.cpp
index a5cc033..fb35a8a 100644
--- a/bench/MathBench.cpp
+++ b/bench/MathBench.cpp
@@ -126,7 +126,7 @@
static inline float SkFastInvSqrt(float x) {
float xhalf = 0.5f*x;
- int i = *SkTCast<int*>(&x);
+ uint32_t i = *SkTCast<uint32_t*>(&x);
i = 0x5f3759df - (i>>1);
x = *SkTCast<float*>(&i);
x = x*(1.5f-xhalf*x*x);