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llvm-project/clang/test/Parser/pointer_promotion.c

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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
2009-12-16 04:14:24 +08:00
// RUN: %clang_cc1 -fsyntax-only -verify %s
Fixed Sema::CheckEqualityOperands() and Sema::CheckRelationalOperands() to deal more thoughtfully with incompatible pointers. This includes: - Emit a diagnostic when two pointers aren't compatible! - Promote one of the pointers/integers so we maintain the invariant expected by the code generator (i.e. that the left/right types match). - Upgrade the pointer/integer comparison diagnostic to include the types. llvm-svn: 41127
2007-08-17 05:48:38 +08:00
Use functions with prototypes when appropriate; NFC A significant number of our tests in C accidentally use functions without prototypes. This patch converts the function signatures to have a prototype for the situations where the test is not specific to K&R C declarations. e.g., void func(); becomes void func(void); This is the fifth batch of tests being updated (there are a significant number of other tests left to be updated). Note, the behavior of -ast-print is broken. It prints functions with a prototype (void) as if they have no prototype () in C. Some tests need to disable strict prototype checking when recompiling the results of an -ast-print invocation.
2022-02-09 22:10:10 +08:00
void test(void) {
Fixed Sema::CheckEqualityOperands() and Sema::CheckRelationalOperands() to deal more thoughtfully with incompatible pointers. This includes: - Emit a diagnostic when two pointers aren't compatible! - Promote one of the pointers/integers so we maintain the invariant expected by the code generator (i.e. that the left/right types match). - Upgrade the pointer/integer comparison diagnostic to include the types. llvm-svn: 41127
2007-08-17 05:48:38 +08:00
void *vp;
int *ip;
char *cp;
struct foo *fp;
struct bar *bp;
short sint = 7;
Emit a warning when the body of an if block is a NullStmt. llvm-svn: 42840
2007-10-11 04:50:11 +08:00
if (ip < cp) {} // expected-warning {{comparison of distinct pointer types ('int *' and 'char *')}}
if (cp < fp) {} // expected-warning {{comparison of distinct pointer types ('char *' and 'struct foo *')}}
if (fp < bp) {} // expected-warning {{comparison of distinct pointer types ('struct foo *' and 'struct bar *')}}
if (ip < 7) {} // expected-warning {{comparison between pointer and integer ('int *' and 'int')}}
Factor out comparison handling for arithmetic types. This is not quite NFC: we don't perform the usual arithmetic conversions unless we have an operand of arithmetic or enumeration type any more. This matches the standard rule, but actually has no effect other than to marginally improve our diagnostics for the non-arithmetic, non-enumeration cases (by not performing integral promotions on one operand if the other is a pointer). llvm-svn: 322024
2018-01-09 05:12:04 +08:00
if (sint < ip) {} // expected-warning {{comparison between pointer and integer ('short' and 'int *')}}
Emit a warning when the body of an if block is a NullStmt. llvm-svn: 42840
2007-10-11 04:50:11 +08:00
if (ip == cp) {} // expected-warning {{comparison of distinct pointer types ('int *' and 'char *')}}
Fixed Sema::CheckEqualityOperands() and Sema::CheckRelationalOperands() to deal more thoughtfully with incompatible pointers. This includes: - Emit a diagnostic when two pointers aren't compatible! - Promote one of the pointers/integers so we maintain the invariant expected by the code generator (i.e. that the left/right types match). - Upgrade the pointer/integer comparison diagnostic to include the types. llvm-svn: 41127
2007-08-17 05:48:38 +08:00
}