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* [gcc r13-1780] Revert "forwprop: Use lhs type instead of arg0 in folding VEC_PERM_EXPR."
@ 2022-07-21 11:41 Prathamesh Kulkarni
  0 siblings, 0 replies; only message in thread
From: Prathamesh Kulkarni @ 2022-07-21 11:41 UTC (permalink / raw)
  To: gcc-cvs

https://gcc.gnu.org/g:9a52d6871a268a6a1fc3d0a3660120c44ee94951

commit r13-1780-g9a52d6871a268a6a1fc3d0a3660120c44ee94951
Author: Prathamesh Kulkarni <prathamesh.kulkarni@linaro.org>
Date:   Thu Jul 21 17:06:03 2022 +0530

    Revert "forwprop: Use lhs type instead of arg0 in folding VEC_PERM_EXPR."
    
    This reverts commit 4c3231302577445417715a7c22e879e4159376d3.
    
    gcc/ChangeLog:
            Revert:
            * tree-ssa-forwprop.cc (simplify_permutation): Use lhs type
            instead of TREE_TYPE (arg0) as result type in folding VEC_PERM_EXPR.

Diff:
---
 gcc/tree-ssa-forwprop.cc | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/gcc/tree-ssa-forwprop.cc b/gcc/tree-ssa-forwprop.cc
index d04cf4bccf8..fdc4bc8909d 100644
--- a/gcc/tree-ssa-forwprop.cc
+++ b/gcc/tree-ssa-forwprop.cc
@@ -2661,7 +2661,7 @@ simplify_permutation (gimple_stmt_iterator *gsi)
 
       /* Shuffle of a constructor.  */
       bool ret = false;
-      tree res_type = TREE_TYPE (gimple_assign_lhs (stmt));
+      tree res_type = TREE_TYPE (arg0);
       tree opt = fold_ternary (VEC_PERM_EXPR, res_type, arg0, arg1, op2);
       if (!opt
 	  || (TREE_CODE (opt) != CONSTRUCTOR && TREE_CODE (opt) != VECTOR_CST))


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