[PATCH] D48958: [clang][ubsan] Implicit Cast Sanitizer - integer truncation - clang part

[Aaron Ballman via Phabricator via cfe-commits]

aaron.ballman added inline comments.


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Comment at: docs/UndefinedBehaviorSanitizer.rst:93-97
+  -  ``-fsanitize=implicit-integer-truncation``: Implicit cast from integer
+     of bigger bit width to smaller bit width, if that results in data loss.
+     That is, if the demoted value, after casting back to the original width,
+     is not equal to the original value before the downcast. This issue may
+     often be caused by an implicit integer conversions.
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How about: `Implicit cast from a value of integral type which results in data loss where the demoted value, when cast back to the original type, would have a different value than the original. This issue may be caused by an implicit conversion.`


Repository:
  rC Clang

https://reviews.llvm.org/D48958