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4 Commits

Author SHA1 Message Date
Argyrios Kyrtzidis 639ffb0c07 Fix rdar://8139785 "implement warning on dead expression in comma operator" 
As a bonus, fix the warning for || and && operators; it was emitted even if one of the operands had side effects, e.g:

x || test_logical_foo1();

emitted a bogus "expression result unused" for 'x'.

llvm-svn: 107274
 2010-06-30 10:53:14 +00:00
Ted Kremenek a1de6fc575 Include all warnings under '-Wunused' in '-Wmost' and '-Wall'. 
llvm-svn: 100786
 2010-04-08 17:54:28 +00:00
Ted Kremenek 43a9c9626f Don't emit an 'unused expression' warning for '||' and '&&' expressions that contain assignments 
or similar side-effects.

llvm-svn: 100676
 2010-04-07 18:49:21 +00:00
John McCall c493a73240 Improve the unused-value check to look into comma expressions and filter out 
voids in sub-expressions.  Patch by Mike M!

Fixes PR4806.

llvm-svn: 98335
 2010-03-12 07:11:26 +00:00