From 70b5c6981fcdff246f90e57e91f3e1667eab2eb3 Mon Sep 17 00:00:00 2001 From: Richard Biener Date: Tue, 10 Oct 2023 13:33:34 +0200 Subject: tree-optimization/111751 - support 1024 bit vector constant reinterpretation The following ups the limit in fold_view_convert_expr to handle 1024bit vectors as used by GCN and RVV. It also robustifies the handling in visit_reference_op_load to properly give up when constants cannot be re-interpreted. PR tree-optimization/111751 * fold-const.cc (fold_view_convert_expr): Up the buffer size to 128 bytes. * tree-ssa-sccvn.cc (visit_reference_op_load): Special case constants, giving up when re-interpretation to the target type fails. --- gcc/fold-const.cc | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'gcc/fold-const.cc') diff --git a/gcc/fold-const.cc b/gcc/fold-const.cc index 4f85615..82299bb 100644 --- a/gcc/fold-const.cc +++ b/gcc/fold-const.cc @@ -9266,8 +9266,8 @@ fold_view_convert_vector_encoding (tree type, tree expr) static tree fold_view_convert_expr (tree type, tree expr) { - /* We support up to 512-bit values (for V8DFmode). */ - unsigned char buffer[64]; + /* We support up to 1024-bit values (for GCN/RISC-V V128QImode). */ + unsigned char buffer[128]; int len; /* Check that the host and target are sane. */ -- cgit v1.1