diff mbox series

middle-end: Fix unexpected warnings for RISC-V port.

Message ID 20220823070631.154633-1-juzhe.zhong@rivai.ai
State Deferred, archived
Headers
Series middle-end: Fix unexpected warnings for RISC-V port. |

Commit Message

钟居哲 Aug. 23, 2022, 7:06 a.m. UTC 
  From: zhongjuzhe <juzhe.zhong@rivai.ai>

gcc/ChangeLog:

        * tree-vect-loop-manip.cc (vect_gen_vector_loop_niters): Simply initialize const_vf to 0.

---
 gcc/tree-vect-loop-manip.cc | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

Comments

Richard Biener Aug. 23, 2022, 7:07 a.m. UTC | #1 
On Tue, 23 Aug 2022, juzhe.zhong@rivai.ai wrote:

> From: zhongjuzhe <juzhe.zhong@rivai.ai>

OK.

> gcc/ChangeLog:
> 
>         * tree-vect-loop-manip.cc (vect_gen_vector_loop_niters): Simply initialize const_vf to 0.
> 
> ---
>  gcc/tree-vect-loop-manip.cc | 5 +++--
>  1 file changed, 3 insertions(+), 2 deletions(-)
> 
> diff --git a/gcc/tree-vect-loop-manip.cc b/gcc/tree-vect-loop-manip.cc
> index 86d2264054a..c3a24e6c39a 100644
> --- a/gcc/tree-vect-loop-manip.cc
> +++ b/gcc/tree-vect-loop-manip.cc
> @@ -1977,8 +1977,9 @@ vect_gen_vector_loop_niters (loop_vec_info loop_vinfo, tree niters,
>      }
>    else
>      ni_minus_gap = niters;
> -
> -  unsigned HOST_WIDE_INT const_vf;
> +  
> +  /* To silence some unexpected warnings, simply initialize to 0. */
> +  unsigned HOST_WIDE_INT const_vf = 0;
>    if (vf.is_constant (&const_vf)
>        && !LOOP_VINFO_USING_PARTIAL_VECTORS_P (loop_vinfo))
>      {
>
diff mbox series

Patch

diff --git a/gcc/tree-vect-loop-manip.cc b/gcc/tree-vect-loop-manip.cc
index 86d2264054a..c3a24e6c39a 100644
--- a/gcc/tree-vect-loop-manip.cc
+++ b/gcc/tree-vect-loop-manip.cc
@@ -1977,8 +1977,9 @@  vect_gen_vector_loop_niters (loop_vec_info loop_vinfo, tree niters,
     }
   else
     ni_minus_gap = niters;
-
-  unsigned HOST_WIDE_INT const_vf;
+  
+  /* To silence some unexpected warnings, simply initialize to 0. */
+  unsigned HOST_WIDE_INT const_vf = 0;
   if (vf.is_constant (&const_vf)
       && !LOOP_VINFO_USING_PARTIAL_VECTORS_P (loop_vinfo))
     {