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Author SHA1 Message Date
Roman Lebedev dd403575a2 [clang][ubsan] Split Implicit Integer Truncation Sanitizer into unsigned and signed checks 
Summary:
As per IRC disscussion, it seems we really want to have more fine-grained `-fsanitize=implicit-integer-truncation`:
* A check when both of the types are unsigned.
* Another check for the other cases (either one of the types is signed, or both of the types is signed).

This is clang part.
Compiler-rt part is D50902.

Reviewers: rsmith, vsk, Sanitizers

Reviewed by: rsmith

Differential Revision: https://reviews.llvm.org/D50901

llvm-svn: 344230
 2018-10-11 09:09:50 +00:00
Roman Lebedev fe7dd583b8 [clang][ubsan][NFC] Slight test cleanup in preparation for D50901 
Reviewers: vsk, vitalybuka, filcab

Reviewed By: vitalybuka

Subscribers: cfe-commits

Differential Revision: https://reviews.llvm.org/D52589

llvm-svn: 343251
 2018-09-27 19:07:48 +00:00