[gcc(refs/users/acsawdey/heads/memcpy-unaligned-vsx)] tree-optimization/96483 - fix ICE in PRE with POLY_INT_CST

[Aaron Sawdey]

https://gcc.gnu.org/g:1f4c8afa1b2dac97f2ee78eacafe6eee246a4dae

commit 1f4c8afa1b2dac97f2ee78eacafe6eee246a4dae
Author: Richard Biener <rguenther@suse.de>
Date:   Thu Aug 6 12:16:05 2020 +0200

    tree-optimization/96483 - fix ICE in PRE with POLY_INT_CST
    
    This adds a missing case for PRE expression re-materialization.
    
    2020-08-06  Richard Biener  <rguenther@suse.de>
    
            PR tree-optimization/96483
            * tree-ssa-pre.c (create_component_ref_by_pieces_1): Handle
            POLY_INT_CST.

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

diff --git a/gcc/tree-ssa-pre.c b/gcc/tree-ssa-pre.c
index 7d67305bf4b..0a94f4e3355 100644
--- a/gcc/tree-ssa-pre.c
+++ b/gcc/tree-ssa-pre.c
@@ -2644,6 +2644,7 @@ create_component_ref_by_pieces_1 (basic_block block, vn_reference_t ref,
       }
     case STRING_CST:
     case INTEGER_CST:
+    case POLY_INT_CST:
     case COMPLEX_CST:
     case VECTOR_CST:
     case REAL_CST: