Commit Graph

8 Commits

Author SHA1 Message Date
Douglas Gregor cb2b662283 Make the "unused result" warning a warning about run-time behavior, so
that we don't warn when there isn't going to be any computation anyway.

llvm-svn: 108442
2010-07-15 18:47:04 +00:00
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
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
Daniel Dunbar 633d5b3ee2 Use clang to run tests which include headers from the system.
llvm-svn: 89085
2009-11-17 10:14:55 +00:00
Daniel Dunbar a45cf5b6b0 Rename clang to clang-cc.
Tests and drivers updated, still need to shuffle dirs.

llvm-svn: 67602
2009-03-24 02:24:46 +00:00
Chris Lattner 61f60a05b2 c89 does not perform array -> pointer promotion unless the array is an lvalue. This
is different than C99.  This fixes the rest of rdar://6095180.

llvm-svn: 54064
2008-07-25 21:33:13 +00:00
Chris Lattner f6e1e309c7 In c99 mode, comma does do function/array promotion even though
it does not do unary promotions (like short->int).

llvm-svn: 54058
2008-07-25 20:54:07 +00:00
Chris Lattner e174acc910 Comma does not perform unary promotions, rdar://6095180
llvm-svn: 54045
2008-07-25 20:02:29 +00:00