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llvm-project/clang/test/Preprocessor/expr_usual_conversions.c

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convert to -verify mode. llvm-svn: 100674
2010-04-08 02:43:41 +08:00
// RUN: %clang_cc1 %s -E -verify
Warn when performing 'usual' conversions that require a sign change. This implements test/Preprocessor/expr_usual_conversions.c, which produces this output: expr_usual_conversions.c:5:10: warning: left side of operator converted from negative value to unsigned: -42 to 18446744073709551574 #if (-42 + 0U) / -2 ^ expr_usual_conversions.c:5:16: warning: right side of operator converted from negative value to unsigned: -2 to 18446744073709551614 #if (-42 + 0U) / -2 ^ llvm-svn: 39406
2007-04-11 12:14:45 +08:00
#define INTMAX_MIN (-9223372036854775807LL -1)
convert to -verify mode. llvm-svn: 100674
2010-04-08 02:43:41 +08:00
#if (-42 + 0U) /* expected-warning {{left side of operator converted from negative value to unsigned: -42 to 18446744073709551574}} */ \
/ -2 /* expected-warning {{right side of operator converted from negative value to unsigned: -2 to 18446744073709551614}} */
Warn when performing 'usual' conversions that require a sign change. This implements test/Preprocessor/expr_usual_conversions.c, which produces this output: expr_usual_conversions.c:5:10: warning: left side of operator converted from negative value to unsigned: -42 to 18446744073709551574 #if (-42 + 0U) / -2 ^ expr_usual_conversions.c:5:16: warning: right side of operator converted from negative value to unsigned: -2 to 18446744073709551614 #if (-42 + 0U) / -2 ^ llvm-svn: 39406
2007-04-11 12:14:45 +08:00
foo
#endif
Fix PR2279 part C: shifts don't perform the UACs, thanks to Neil for pointing this out. llvm-svn: 50624
2008-05-05 02:25:32 +08:00
// Shifts don't want the usual conversions: PR2279
#if (2 << 1U) - 30 >= 0
#error
#endif