diff options
| -rw-r--r-- | gcc/ChangeLog | 6 | ||||
| -rw-r--r-- | gcc/dse.c | 1 | ||||
| -rw-r--r-- | gcc/testsuite/ChangeLog | 6 | ||||
| -rw-r--r-- | gcc/testsuite/gcc.c-torture/compile/pr40035.c | 20 |
4 files changed, 32 insertions, 1 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 1a3b594..9e2e4b9 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,9 @@ +2009-05-13 Jakub Jelinek <jakub@redhat.com> + Ben Elliston <bje@au.ibm.com> + + PR middle-end/40035 + * dse.c (check_mem_read_rtx): Guard against width == -1. + 2009-05-13 Michael Matz <matz@suse.de> PR middle-end/39976 @@ -2245,6 +2245,7 @@ check_mem_read_rtx (rtx *loc, void *data) if (store_info->rhs && store_info->group_id == -1 && store_info->cse_base == base + && width != -1 && offset >= store_info->begin && offset + width <= store_info->end && all_positions_needed_p (store_info, diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog index acf6ca7..928c7f6 100644 --- a/gcc/testsuite/ChangeLog +++ b/gcc/testsuite/ChangeLog @@ -1,3 +1,8 @@ +2009-05-14 Ben Elliston <bje@au.ibm.com> + + PR middle-end/40035 + * gcc.c-torture/compile/pr40035.c: New test. + 2009-05-13 Kaveh R. Ghazi <ghazi@caip.rutgers.edu> * gcc.target/i386/pr39543-2.c: Skip if ilp32 && pic. @@ -9,7 +14,6 @@ * gfortran.dg/c_kind_tests_2.f03: Ditto. * gfortran.dg/interop_params.f03: Ditto. - 2009-05-12 Jan Hubicka <jh@suse.cz> * gcc.dg/tree-ssa/loop-36.c: Reduce amount of iterations to 2 so unrolling diff --git a/gcc/testsuite/gcc.c-torture/compile/pr40035.c b/gcc/testsuite/gcc.c-torture/compile/pr40035.c new file mode 100644 index 0000000..1bf1a7c --- /dev/null +++ b/gcc/testsuite/gcc.c-torture/compile/pr40035.c @@ -0,0 +1,20 @@ +typedef __SIZE_TYPE__ size_t; +void *memmove (void *dest, const void *src, size_t count); +size_t strlen (const char *s); + +int +foo (char *param, char *val) +{ + if (val) + { + if (val == param + strlen (param) + 1) + val[-1] = '='; + else if (val == param + strlen (param) + 2) + { + val[-2] = '='; + memmove (val - 1, val, strlen (val) + 1); + val--; + } + } + return 0; +} |