diff options
| -rw-r--r-- | gcc/builtins.c | 3 | ||||
| -rw-r--r-- | gcc/testsuite/gcc.dg/pr100843.c | 8 |
2 files changed, 10 insertions, 1 deletions
diff --git a/gcc/builtins.c b/gcc/builtins.c index 03829c0..304d87d 100644 --- a/gcc/builtins.c +++ b/gcc/builtins.c @@ -3963,7 +3963,8 @@ try_store_by_multiple_pieces (rtx to, rtx len, unsigned int ctz_len, else if (max_len == min_len) blksize = max_len; else - gcc_unreachable (); + /* Huh, max_len < min_len? Punt. See pr100843.c. */ + return false; if (min_len >= blksize) { min_len -= blksize; diff --git a/gcc/testsuite/gcc.dg/pr100843.c b/gcc/testsuite/gcc.dg/pr100843.c new file mode 100644 index 0000000..695a2ec --- /dev/null +++ b/gcc/testsuite/gcc.dg/pr100843.c @@ -0,0 +1,8 @@ +/* { dg-do compile } */ +/* { dg-options "-O1 -w" } */ + +char c; +void *memset(); +void test_integer_conversion_memset(void *d) { + memset(d, '\0', c); +} |