From 5bc2904510bf9a10bd4524997750e4eb5bac8f21 Mon Sep 17 00:00:00 2001 From: Richard Biener Date: Thu, 14 Dec 2017 15:08:09 +0000 Subject: [PATCH] re PR tree-optimization/65258 (Wrong array bounds warning) 2017-12-14 Richard Biener PR tree-optimization/65258 * gcc.dg/Warray-bounds-23.c: New testcase. From-SVN: r255641 --- gcc/testsuite/ChangeLog | 5 +++++ gcc/testsuite/gcc.dg/Warray-bounds-23.c | 15 +++++++++++++++ 2 files changed, 20 insertions(+) create mode 100644 gcc/testsuite/gcc.dg/Warray-bounds-23.c diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog index bc9fa99603d..981c3a2771f 100644 --- a/gcc/testsuite/ChangeLog +++ b/gcc/testsuite/ChangeLog @@ -1,3 +1,8 @@ +2017-12-14 Richard Biener + + PR tree-optimization/65258 + * gcc.dg/Warray-bounds-23.c: New testcase. + 2017-12-14 Tom de Vries * lib/target-supports.exp (check_effective_target_weak_undefined): New diff --git a/gcc/testsuite/gcc.dg/Warray-bounds-23.c b/gcc/testsuite/gcc.dg/Warray-bounds-23.c new file mode 100644 index 00000000000..2addc358310 --- /dev/null +++ b/gcc/testsuite/gcc.dg/Warray-bounds-23.c @@ -0,0 +1,15 @@ +/* { dg-do compile } */ +/* { dg-options "-O2 -Warray-bounds" } */ + +int main() +{ + unsigned i, j, a[10] = {0}; + + for (j = 23; j < 25; j++){ + for (i = j / 8; i --> 0;) a[i] = 0; /* { dg-bogus "array bounds" } */ + for (i = 1; i --> 0;) __builtin_printf("%u", a[i]); + } + + return 0; +} + -- 2.30.2