diff options
Diffstat (limited to 'gcc/testsuite/gcc.dg/Walloc-size-larger-than-8.c')
-rw-r--r-- | gcc/testsuite/gcc.dg/Walloc-size-larger-than-8.c | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.dg/Walloc-size-larger-than-8.c b/gcc/testsuite/gcc.dg/Walloc-size-larger-than-8.c new file mode 100644 index 00000000000..4f84a027d79 --- /dev/null +++ b/gcc/testsuite/gcc.dg/Walloc-size-larger-than-8.c @@ -0,0 +1,27 @@ +/* PR middle-end/82063 - issues with arguments enabled by -Wall + { dg-do compile { target lp64 } } + { dg-options "-O -Walloc-size-larger-than=1TiB -ftrack-macro-expansion=0" } */ + +typedef __SIZE_TYPE__ size_t; + +void sink (void*); + +#define T(x) sink (x) + +void f (void) +{ + size_t n = 0; + T (__builtin_malloc (n)); + + n = (size_t)1024 * 1024 * 1024 * 1024; /* 1 tebibyte (TiB) */ + T (__builtin_malloc (n)); + + n += 1; + T (__builtin_malloc (n)); /* { dg-warning "argument 1 value .1099511627777. exceeds maximum object size 1099511627776" } */ + + n = __PTRDIFF_MAX__; + T (__builtin_malloc (n)); /* { dg-warning "exceeds maximum object size" } */ + + n = __SIZE_MAX__; + T (__builtin_malloc (n)); /* { dg-warning "exceeds maximum object size" } */ +} |