diff options
Diffstat (limited to 'gcc/testsuite/gcc.dg/Walloc-size-larger-than-14.c')
-rw-r--r-- | gcc/testsuite/gcc.dg/Walloc-size-larger-than-14.c | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.dg/Walloc-size-larger-than-14.c b/gcc/testsuite/gcc.dg/Walloc-size-larger-than-14.c new file mode 100644 index 00000000000..e632e2236a3 --- /dev/null +++ b/gcc/testsuite/gcc.dg/Walloc-size-larger-than-14.c @@ -0,0 +1,30 @@ +/* PR middle-end/82063 - issues with arguments enabled by -Wall + { dg-do compile } + { dg-options "-O -Walloc-size-larger-than=123456789123456789123456789123456789 -ftrack-macro-expansion=0" } */ + +typedef __SIZE_TYPE__ size_t; + +void sink (void*); + +#define T(x) sink (x) + +/* Verify that an exceedingly large -Walloc-size-larger-than argument + with no suffix is accepted and treated as infinite. */ + +void f (void) +{ + size_t n = 0; + T (__builtin_malloc (n)); + + n = __PTRDIFF_MAX__; + T (__builtin_malloc (n)); + + n += 1; + T (__builtin_malloc (n)); + + n = __SIZE_MAX__ - 1; + T (__builtin_malloc (n)); + + n = __SIZE_MAX__; + T (__builtin_malloc (n)); +} |