diff options
Diffstat (limited to 'gcc/testsuite/gcc.dg/pr118946-1.c')
| -rw-r--r-- | gcc/testsuite/gcc.dg/pr118946-1.c | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.dg/pr118946-1.c b/gcc/testsuite/gcc.dg/pr118946-1.c new file mode 100644 index 0000000..6cf2661 --- /dev/null +++ b/gcc/testsuite/gcc.dg/pr118946-1.c @@ -0,0 +1,15 @@ +/* { dg-do compile } */ +/* { dg-options "-O2 -fdump-tree-optimized -fdump-tree-forwprop1-details" } */ + +/* PR tree-optimization/118946 */ + +void f(char *a) +{ + char t[1024] = {}; + __builtin_memcpy(a, t, 10); +} + +/* We should be able to optimize the memcpy into a memset here. */ +/* { dg-final { scan-tree-dump-times "after previous" 1 "forwprop1"} } */ +/* { dg-final { scan-tree-dump-times "memset " 1 "optimized" } } */ +/* { dg-final { scan-tree-dump-not "memcpy " "optimized" } } */ |