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Author SHA1 Message Date
Argyrios Kyrtzidis 57595e46fd [Sema] Introduce a data recursive evaluator specific to binary operators. 
This allows us to handle extreme cases of chained binary operators without causing stack
overflow.
The binary operators that are handled with the data recursive evaluator are
comma, logical, or operators that have operands with integral or enumeration type.

Part of rdar://10941790.

llvm-svn: 152819
 2012-03-15 18:07:16 +00:00
Argyrios Kyrtzidis 888d4a62fa Remove test/Sema/many-logical-ops.c since it fails in linux variants. 
Will bring it up once the issue is fixed properely.

llvm-svn: 151830
 2012-03-01 19:47:26 +00:00
NAKAMURA Takumi f1801d65e7 clang/test/Analysis/stats.c: Mark this as XFAIL: mingw32. 
FIXME: Could we guarantee not to get stack overflow also on mingw?
llvm-svn: 151692
 2012-02-29 01:50:38 +00:00
Argyrios Kyrtzidis 465e137558 When evaluating integer expressions include a check for sub-expressions 
depth and error if we exceed a max value, to make sure we avoid a stack overflow.

This is a hacky temporary fix. rdar://10913206.

llvm-svn: 151585
 2012-02-27 23:18:37 +00:00
Argyrios Kyrtzidis 8d4677ad26 Revert r151460 as it is not enough to address the issue. 
Original log:
When evaluating integer expressions handle logical operators outside
VisitBinaryOperator() to reduce stack pressure for source with huge number
of logical operators.

Fixes rdar://10913206.

llvm-svn: 151464
 2012-02-25 23:21:37 +00:00
Argyrios Kyrtzidis 70f9eb571e When evaluating integer expressions handle logical operators outside 
VisitBinaryOperator() to reduce stack pressure for source with huge number
of logical operators.

Fixes rdar://10913206.

llvm-svn: 151460
 2012-02-25 21:38:16 +00:00