diff --git a/gcc/testsuite/gcc.dg/vect/vect-early-break_117-pr113734.c b/gcc/testsuite/gcc.dg/vect/vect-early-break_117-pr113734.c new file mode 100644 index 0000000000000000000000000000000000000000..36ae09483dfd426f977a3d92cf24a78d76de6961 --- /dev/null +++ b/gcc/testsuite/gcc.dg/vect/vect-early-break_117-pr113734.c @@ -0,0 +1,37 @@ +/* { dg-add-options vect_early_break } */ +/* { dg-require-effective-target vect_early_break_hw } */ +/* { dg-require-effective-target vect_int } */ +/* { dg-additional-options "-O3" } */ + +/* { dg-final { scan-tree-dump "LOOP VECTORIZED" "vect" } } */ + +#include "tree-vect.h" + +#define N 306 +#define NEEDLE 136 + +int table[N]; + +__attribute__ ((noipa)) +int foo (int i, unsigned short parse_tables_n) +{ + parse_tables_n >>= 9; + parse_tables_n += 11; + while (i < N && parse_tables_n--) + table[i++] = 0; + + return table[NEEDLE]; +} + +int main () +{ + check_vect (); + + for (int j = 0; j < N; j++) + table[j] = -1; + + if (foo (0, 0xFFFF) != 0) + __builtin_abort (); + + return 0; +} diff --git a/gcc/tree-vect-loop.cc b/gcc/tree-vect-loop.cc index 04f4b5b6b2fa76824c75b4d41df48ef995ad17a2..367077965fd9a166f605f6b933ee731b3586d1c2 100644 --- a/gcc/tree-vect-loop.cc +++ b/gcc/tree-vect-loop.cc @@ -12174,7 +12174,8 @@ vect_transform_loop (loop_vec_info loop_vinfo, gimple *loop_vectorized_call) /* True if the final iteration might not handle a full vector's worth of scalar iterations. */ bool final_iter_may_be_partial - = LOOP_VINFO_USING_PARTIAL_VECTORS_P (loop_vinfo); + = LOOP_VINFO_USING_PARTIAL_VECTORS_P (loop_vinfo) + || LOOP_VINFO_EARLY_BREAKS (loop_vinfo); /* The minimum number of iterations performed by the epilogue. This is 1 when peeling for gaps because we always need a final scalar iteration. */