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120 Commits

Author SHA1 Message Date
Dan Gohman c128e70ff2 Add a lint check for mismatched return types, inspired by PR6944. 
llvm-svn: 108162
 2010-07-12 18:02:04 +00:00
Dan Gohman 1e33b18e28 Add some more TODO comments. 
llvm-svn: 107657
 2010-07-06 15:23:00 +00:00
Dan Gohman f855b39edd Add a comment. 
llvm-svn: 107656
 2010-07-06 15:21:57 +00:00
Dan Gohman 49a372cebc Fix the noalias checking so that it doesn't worry about 
an argument aliasing itself. Thanks Duncan!

llvm-svn: 105288
 2010-06-01 20:51:40 +00:00
Dan Gohman 0fa67e479a Add lint checks for function attributes. 
llvm-svn: 105009
 2010-05-28 21:43:57 +00:00
Dan Gohman c575ec61ea Fix lint's memcpy and memmove checks, and its basic block traversal. 
llvm-svn: 104970
 2010-05-28 17:44:00 +00:00
Dan Gohman 862f034188 Detect self-referential values. 
llvm-svn: 104957
 2010-05-28 16:45:33 +00:00
Dan Gohman cef9fc37f4 Eli pointed out that va_arg instruction result values don't 
reference the stack.

llvm-svn: 104951
 2010-05-28 16:34:49 +00:00
Dan Gohman 54d7aaa819 Teach lint how to look through simple store+load pairs and other 
effective no-op constructs, to make it more effective on
unoptimized IR.

llvm-svn: 104950
 2010-05-28 16:21:24 +00:00
Dan Gohman ddba4b725a Add a lint check for returning the address of stack memory. 
llvm-svn: 104936
 2010-05-28 04:33:42 +00:00
Dan Gohman 084bcb1322 Fix Lint printing warnings multiple times. Remove the ErrorStr 
option from lintModule, which was an artifact from being
based on Verifier code.

llvm-svn: 104765
 2010-05-26 22:28:53 +00:00
Dan Gohman a20a5cd24f Reinstate checking of stackrestore, with checking for both Read 
and Write, and add a comment explaining this.

llvm-svn: 104756
 2010-05-26 22:21:25 +00:00
Dan Gohman 996bc42a26 Stackrestore is not a load. 
llvm-svn: 104752
 2010-05-26 22:00:10 +00:00
Dan Gohman c96c6db59d Remove a TODO which isn't practical. 
llvm-svn: 104748
 2010-05-26 21:50:41 +00:00
Dan Gohman 1249adf160 Implement checking of the tail keyword. 
llvm-svn: 104744
 2010-05-26 21:46:36 +00:00
Dan Gohman 299e7b93ac Add lint checks for invalid uses of memory. 
llvm-svn: 102733
 2010-04-30 19:05:00 +00:00
Dan Gohman c951e6e414 Tidy a comment. 
llvm-svn: 102041
 2010-04-22 01:30:05 +00:00
Dan Gohman 9ba08a4631 Add several more lint checks. 
llvm-svn: 100841
 2010-04-09 01:39:53 +00:00
Dan Gohman 7808d490d3 Add a few more lint checks. 
llvm-svn: 100825
 2010-04-08 23:05:57 +00:00
Dan Gohman 98bc4371c7 Add a -lint pass which checks for common sources of undefined or likely 
unintended behavior.

llvm-svn: 100798
 2010-04-08 18:47:09 +00:00