wangtao
/
llvm-project
forked from OSchip/llvm-project
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity
98,593 Commits 29 Branches 0 Tags 2.2 GiB
Commit Graph

10 Commits

Author SHA1 Message Date
Ted Kremenek 5f256da834 Rename GRState::getSVal() -> getRawSVal() and getSimplifiedSVal() -> getSVal(). 
The end result is now we eagarly constant-fold symbols in the analyzer that are perfectly constrained
to be a constant value.  This allows us to recover some path-sensitivity in some cases by lowering
the required level of reasoning power needed to evaluate some expressions.

The net win from this change is that the false positive in PR 8015 is fixed, and we also
find more idempotent operations bugs.

We do, however, regress with the BugReporterVisitors, which need to be modified to understand
this constant folding (and look past it).  This causes some diagnostic regressions in plist-output.m
which will get addressed in a future patch.  plist-output.m is now marked XFAIL, while
plist-output-alternate.m now tests that the plist output is working, but with the suboptimal
diagnostics.  This second test file will eventually be removed.

llvm-svn: 113477
 2010-09-09 07:13:00 +00:00
Ted Kremenek 07343c02be For GRExprEngine::EvalBind() (and called visitors), unifiy StoreE and AssignE. Now StoreE (const Stmt*) represents the expression where the store took place, which is the assignment expression if it takes place in an assignment. This removes some conceptual dissidence as well as removes an extra parameter from the Checker::PreVisitBind() visitor. It also improves ranges and source location information in analyzer diagnostics. 
llvm-svn: 112789
 2010-09-02 00:56:20 +00:00
Ted Kremenek bb6f5af4a4 Tweak null dereference diagnostics to give clearer diagnostics when 
a null dereference results from a field access.

llvm-svn: 99236
 2010-03-23 01:11:38 +00:00
Ted Kremenek 2f2692f8ca Rename -cc1 option '-checker-cfref' to '-analyzer-check-objc-mem'. 
llvm-svn: 95348
 2010-02-05 02:06:54 +00:00
Daniel Dunbar 8fbe78f6fc Update tests to use %clang_cc1 instead of 'clang-cc' or 'clang -cc1'. 
- This is designed to make it obvious that %clang_cc1 is a "test variable"
   which is substituted. It is '%clang_cc1' instead of '%clang -cc1' because it
   can be useful to redefine what gets run as 'clang -cc1' (for example, to set
   a default target).

llvm-svn: 91446
 2009-12-15 20:14:24 +00:00
Zhongxing Xu 27f686f8ec Replace clang-cc with clang -cc1. 
llvm-svn: 91272
 2009-12-14 06:34:20 +00:00
Daniel Dunbar 4e7596cc3a Normalize options to use '-FOO' instead of '--FOO'. 
llvm-svn: 90071
 2009-11-29 09:33:10 +00:00
Ted Kremenek c0229557dd Enhance null dereference diagnostics by indicating what variable (if any) was dereferenced. Addresses <rdar://problem/7039161>. 
llvm-svn: 89726
 2009-11-24 01:33:10 +00:00
Ted Kremenek 99b944c037 Add newline at the end of the file. 
llvm-svn: 89052
 2009-11-17 06:34:24 +00:00
Ted Kremenek 5b2592ed65 Add test to verify that the analyzer plist output is what we expect. 
llvm-svn: 89029
 2009-11-17 02:31:39 +00:00