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authorRichard Biener <rguenther@suse.de>2023-10-10 13:33:34 +0200
committerRichard Biener <rguenther@suse.de>2023-10-10 14:17:23 +0200
commit70b5c6981fcdff246f90e57e91f3e1667eab2eb3 (patch)
tree3aeea830608f2b37e95cf475febcb499365d1e7c /gcc/fold-const.cc
parent2f150833b4edaad314f61a91d46b7f871661df15 (diff)
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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.
Diffstat (limited to 'gcc/fold-const.cc')
-rw-r--r--gcc/fold-const.cc4
1 files changed, 2 insertions, 2 deletions
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. */