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authorGravatar caryclark <caryclark@google.com>2015-12-09 12:02:30 -0800
committerGravatar Commit bot <commit-bot@chromium.org>2015-12-09 12:02:30 -0800
commit3127c99986dc932343aae5ccc575237d99c3aaec (patch)
tree68b3bf28a8f38c10838afa7a2b28478ad07ff17f /src/core/SkBitmapProcState_matrixProcs.cpp
parente36ec871768eb4f5372540c1167ff7ec592f2bec (diff)
ubsan shift fixes
Use an inline function that does a normal shift. When built for the sanitizer, add casts so that the shift is unsigned. Also make a few fixes to do unsigned shifts or avoid the shift altogether; and add an argument spec to some macros. R=reed@google.com,mtklein@google.com BUG=skia:4633 Review URL: https://codereview.chromium.org/1503423003
Diffstat (limited to 'src/core/SkBitmapProcState_matrixProcs.cpp')
-rw-r--r--src/core/SkBitmapProcState_matrixProcs.cpp2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/core/SkBitmapProcState_matrixProcs.cpp b/src/core/SkBitmapProcState_matrixProcs.cpp
index ee61ee8556..1c4b7b6bcf 100644
--- a/src/core/SkBitmapProcState_matrixProcs.cpp
+++ b/src/core/SkBitmapProcState_matrixProcs.cpp
@@ -178,7 +178,7 @@ static inline U16CPU fixed_repeat(SkFixed x) {
#endif
static inline U16CPU fixed_mirror(SkFixed x) {
- SkFixed s = x << 15 >> 31;
+ SkFixed s = SkLeftShift(x, 15) >> 31;
// s is FFFFFFFF if we're on an odd interval, or 0 if an even interval
return (x ^ s) & 0xFFFF;
}