a070ffa7b8
Don't warn about case-value conversions from a negative value to a
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larger unsigned value, since this is implementation-defined
behavior. (We previously suppressed this warning when converting from
a signed value to an unsigned value of the same size).
llvm-svn: 97430
2010-03-01 01:04:55 +00:00
e5ad57a3ed
Don't diagnose overflow in case statements when the conversion is a
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signed<->unsigned conversion with the same bit width. Fixes
<rdar://problem/7658121>.
llvm-svn: 96545
2010-02-18 00:56:01 +00:00
12ea0f4ef9
For -Wswitch-enum warnings, be sure to look through typedefs of enum
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types. Fixes <rdar://problem/7643909>.
llvm-svn: 96531
2010-02-17 23:29:11 +00:00
bd683973c1
Warn when cases are missing from a switch on a value of enumeration
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type (-Wswitch), from Michal!
llvm-svn: 95592
2010-02-08 22:24:16 +00:00
712dcfe921
Fix the search for visible declarations within a Scope to ensure that
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we look into a Scope that corresponds to a compound statement whose
scope was combined with the scope of the function that owns it. This
improves typo correction in many common cases.
llvm-svn: 92879
2010-01-07 00:31:29 +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
3ff3af4ff9
When the condition of a switch() statement is semantically invalid,
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still parse the body of the switch to try to avoid spurious
diagnostics. Fixes PR5606.
llvm-svn: 89847
2009-11-25 06:20:02 +00:00
a96d427966
Implement PR4407 - missing warnings on case value overflow,
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patch by Zhanyong Wan!
llvm-svn: 84259
2009-10-16 16:45:22 +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
f7fba46331
Use VerifyIntegerConstantExpression for case values.
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llvm-svn: 60317
2008-12-01 02:13:02 +00:00
0369c57ac6
Make all the 'redefinition' diagnostics more consistent, and make the
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"previously defined here" diagnostics all notes.
llvm-svn: 59920
2008-11-23 23:12:31 +00:00
475f4bce36
Case values must be evaluated
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llvm-svn: 59884
2008-11-22 21:50:49 +00:00
59689ed764
Use Expr::Evaluate for case statements. Fixes PR2525
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llvm-svn: 59881
2008-11-22 21:04:56 +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
67998451c7
finish off switch case overlap checking, adding support for
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verifying case ranges.
llvm-svn: 41331
2007-08-23 18:29:20 +00:00
f81460f99c
detect and diagnose empty case ranges:
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switch.c:16:8: warning: empty case range specified
case 100 ... 99: ; // expected-warning {{empty case range}}
^~~~~~~~~~
llvm-svn: 41328
2007-08-23 17:48:14 +00:00
fcb920d32b
fix a segfault in cases where there are no cases.
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llvm-svn: 41317
2007-08-23 14:29:07 +00:00
10cb5e520f
report duplicate case values. TODO: report duplicate/overlapping ranges.
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llvm-svn: 41315
2007-08-23 06:23:56 +00:00
fc1c44ac7d
start checking case values of switch stmts more closely. Emit overflow
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warnings when converting case values to the expression type.
llvm-svn: 41313
2007-08-23 05:46:52 +00:00
54f4d2bd57
correctly verify that default and case are in a switchstmt,
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this fixes test/Sema/switch.c.
llvm-svn: 40438
2007-07-23 17:05:23 +00:00
Douglas Gregor