7e1dd672fb
testcase for http://llvm.org/PR8371 of my last commit, r116570
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llvm-svn: 116571
2010-10-15 08:44:44 +00:00
40cec8326c
Revert r114316, -Wunused-value enabled by default was intended.
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llvm-svn: 114318
2010-09-19 23:03:35 +00:00
3698bf1c6d
Make -Wunused-value off by default, matching GCC. Fixes rdar://7126194.
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llvm-svn: 114316
2010-09-19 21:21:44 +00:00
0bbe94d6df
Don't complain about an __builtin_va_arg expression's result being
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unused, since the operation has side effects.
llvm-svn: 103360
2010-05-08 22:41:50 +00:00
2351cb9139
Devote a special diagnostic to the typo
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(void*) someFunction(5, 10, 15, 20);
where the cast is presumably meant to be to 'void'.
llvm-svn: 100574
2010-04-06 22:24:14 +00:00
0978af83b3
Insulate these from changes to the default for -Wunreachable-code.
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llvm-svn: 94326
2010-01-23 20:12:18 +00:00
d1e76b957b
Use -fno-math-errno by default, and remove the IsMathErrnoDefault
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targethook, which is no longer being used. This fixes PR5971.
llvm-svn: 92987
2010-01-08 02:20:44 +00:00
d866c5a678
testcase for previous patch!
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llvm-svn: 92317
2009-12-30 22:10:22 +00:00
56abcbdb47
warn when attribute warn_unused_result is applied to void functions.
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while at it, remove an outdated FIXME
llvm-svn: 91946
2009-12-22 23:59:52 +00:00
518e370719
fix PR4010: add support for the warn_unused_result for function pointers
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llvm-svn: 91803
2009-12-20 23:11:08 +00:00
8fbe78f6fc
Update tests to use %clang_cc1 instead of 'clang-cc' or 'clang -cc1'.
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- 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
484afa2d3b
Switch -f{builtin,math-errno,rtti} and -analyzer-purge-dead to -...no... variants instead of using llvm: 🆑 :init(true) arguments.
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llvm-svn: 89315
2009-11-19 04:55:23 +00:00
a611b45806
add rdar # I accidentally lost.
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llvm-svn: 83942
2009-10-13 04:57:27 +00:00
af066d818c
merge two tests.
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llvm-svn: 83941
2009-10-13 04:56:49 +00:00
1a6babf1f4
make the diagnostic in the 'unused result' warning more precise
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about the reason, rdar://7186119.
llvm-svn: 83940
2009-10-13 04:53:48 +00:00
1682af5bac
More warnings for unused expressions.
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llvm-svn: 77763
2009-08-01 01:39:59 +00:00
5c5f160c7f
Diagnose unused expression results for all statements, just not compound statements.
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llvm-svn: 77631
2009-07-30 22:39:03 +00:00
2706a55071
fix PR4633: cast to void should silence the 'unused expression' warning.
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llvm-svn: 77344
2009-07-28 18:25:28 +00:00
d18049ab1d
Driver: Manually translate a number of -f with no- variants options to
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clang.
- We will eventually want some more driver infrastructre for this
probably.
- For now, the clang-cc interface stays relatively the same, but we
don't accept multiple instances anymore, or the [no-] variants
directly.
llvm-svn: 68550
2009-04-07 21:16:11 +00:00
a45cf5b6b0
Rename clang to clang-cc.
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Tests and drivers updated, still need to shuffle dirs.
llvm-svn: 67602
2009-03-24 02:24:46 +00:00
8a04c5ad03
add support for -fno-math-errno, and validate that it affects sema properly.
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llvm-svn: 64708
2009-02-17 00:35:09 +00:00
a89050c788
sema no longer explodes, yay!
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llvm-svn: 64707
2009-02-17 00:32:04 +00:00
ca8da1d89d
Make the unused expression warning a bit less aggressive (found in PHP
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code).
llvm-svn: 51276
2008-05-19 21:24:43 +00:00
5e4c75f4ef
rename -parse-ast-print to -ast-print
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rename -parse-ast-dump to -ast-dump
remove -parse-ast, which is redundant with -fsyntax-only
llvm-svn: 42852
2007-10-11 00:18:28 +00:00
0883fd5817
Removed option "-parse-ast-check" from clang driver. This is now implemented
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using "-parse-ast -verify".
Updated all test cases (using a sed script) that invoked -parse-ast-check to
now use -parse-ast -verify.
Fixed a bug where using "-verify" instead of "-parse-ast-check" would not
correctly create the DiagClient needed to accumulate diagnostics.
llvm-svn: 42365
2007-09-26 20:14:22 +00:00
cac27a5478
Fix a bug/missing-feature Ted noticed: the 'unused' warning should not
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warn about the last stmt in a stmtexpr, f.e. there should be no warning for:
int maxval_stmt_expr(int x, int y) {
return ({int _a = x, _b = y; _a > _b ? _a : _b; });
}
llvm-svn: 41655
2007-08-31 21:49:55 +00:00
808eb8fe88
Add Type::getAsBuiltinType() and Type::builtinTypesAreCompatible().
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Modified Type::typesAreCompatible() to use the above.
This fixes the following bug submitted by Keith Bauer (thanks!).
int equal(char *a, const char *b)
{
return a == b;
}
Also tweaked Sema::CheckCompareOperands() to ignore the qualifiers when
comparing two pointer types (though it doesn't relate directly to this bug).
llvm-svn: 41476
2007-08-27 04:08:11 +00:00
9decfbabd3
Fix a bug reported by Keith Bauer
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llvm-svn: 41452
2007-08-26 17:32:59 +00:00
91b9a4c8c3
we now correctly emit:
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unused-expr.c:8:6: warning: comparison of distinct pointer types ('int volatile *' and 'int *')
VP == P;
~~ ^ ~
llvm-svn: 41210
2007-08-21 01:19:46 +00:00
c4c8e2546b
New testcase for unused expression analysis
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llvm-svn: 39683
2007-06-27 05:58:33 +00:00
Gabor Greif