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* [gcc r12-6594] vect: Fix uninitialised variable PR104026
@ 2022-01-14 18:41 Richard Sandiford
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From: Richard Sandiford @ 2022-01-14 18:41 UTC (permalink / raw)
  To: gcc-cvs

https://gcc.gnu.org/g:79ae13067f6afabcbae4784ada07dcbb7f00953e

commit r12-6594-g79ae13067f6afabcbae4784ada07dcbb7f00953e
Author: Richard Sandiford <richard.sandiford@arm.com>
Date:   Fri Jan 14 18:41:12 2022 +0000

    vect: Fix uninitialised variable PR104026
    
    As noted by Tobias in the PR, the loop_vec_info constructor wasn't
    initializing the new partial_load_store_bias field.
    
    gcc/
            PR middle-end/104026
            * tree-vect-loop.c (_loop_vec_info::_loop_vec_info): Initialize
            partial_load_store_bias.

Diff:
---
 gcc/tree-vect-loop.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/gcc/tree-vect-loop.c b/gcc/tree-vect-loop.c
index 1dbdb9e5fa0..f1410b03fb3 100644
--- a/gcc/tree-vect-loop.c
+++ b/gcc/tree-vect-loop.c
@@ -846,6 +846,7 @@ _loop_vec_info::_loop_vec_info (class loop *loop_in, vec_info_shared *shared)
     can_use_partial_vectors_p (param_vect_partial_vector_usage != 0),
     using_partial_vectors_p (false),
     epil_using_partial_vectors_p (false),
+    partial_load_store_bias (0),
     peeling_for_gaps (false),
     peeling_for_niter (false),
     no_data_dependencies (false),


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