[LLVMbugs] [Bug 19732] New: Some -fsanitize arguments are not mentioned/documented in clang --help

bugzilla-daemon at llvm.org bugzilla-daemon at llvm.org
Tue May 13 03:52:19 PDT 2014


            Bug ID: 19732
           Summary: Some -fsanitize arguments are not mentioned/documented
                    in clang --help
           Product: clang
           Version: 3.4
          Hardware: PC
                OS: Linux
            Status: NEW
          Severity: normal
          Priority: P
         Component: Documentation
          Assignee: unassignedclangbugs at nondot.org
          Reporter: vincent-llvm at vinc17.net
                CC: llvmbugs at cs.uiuc.edu
    Classification: Unclassified

"clang --help" outputs concerning -fsanitize:

  -fsanitize=<check>      Enable runtime instrumentation for bug detection:
address (memory errors) | thread (race detection) | undefined (miscellaneous
undefined behavior)

Only 3 arguments are mentioned and documented, so that one has the impression
that these are the only ones supported. But there is also at least
float-divide-by-zero (bug 11854 comment 3).

Tested with Debian's clang-3.4 1:3.4.1-2 package.

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