From 2fa2d802da69601c9945dbb988aa29e5567bd8d5 Mon Sep 17 00:00:00 2001
From: Dorit Naishlos <dorit@il.ibm.com>
Date: Mon, 22 Nov 2004 13:41:57 +0000
Subject: [PATCH] re PR tree-optimization/18544 (ICE with -ftree-vectorize)
PR tree-opt/18544
* tree-vectorizer.c (vect_analyze_data_refs): Fail if memtag not found.
From-SVN: r91011
---
gcc/ChangeLog | 5 +++++
gcc/tree-vectorizer.c | 13 +++++++++----
2 files changed, 14 insertions(+), 4 deletions(-)
diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 7e130c9198eb..a1666ee1e1c4 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,8 @@
+2004-11-22 Dorit Naishlos <dorit@il.ibm.com>
+
+ PR tree-opt/18544
+ * tree-vectorizer.c (vect_analyze_data_refs): Fail if memtag not found.
+
2004-11-22 Kazuhiro Inaoka <inaoka.kazuhiro@renesas.com>
* config.gcc: Use t-slibgcc-elf to build libgcc_s.so on
diff --git a/gcc/tree-vectorizer.c b/gcc/tree-vectorizer.c
index 7793b0b6b010..61c22e825944 100644
--- a/gcc/tree-vectorizer.c
+++ b/gcc/tree-vectorizer.c
@@ -5057,10 +5057,15 @@ vect_analyze_data_refs (loop_vec_info loop_vinfo)
case ARRAY_REF:
dr = analyze_array (stmt, TREE_OPERAND (symbl, 0),
DR_IS_READ(dr));
- STMT_VINFO_MEMTAG (stmt_info) =
- vect_get_base_and_bit_offset (dr, DR_BASE_NAME (dr), NULL_TREE,
- loop_vinfo, &offset,
- &base_aligned_p);
+ tag = vect_get_base_and_bit_offset (dr, DR_BASE_NAME (dr),
+ NULL_TREE, loop_vinfo, &offset, &base_aligned_p);
+ if (!tag)
+ {
+ if (vect_debug_stats (loop) || vect_debug_details (loop))
+ fprintf (dump_file, "not vectorized: no memtag for ref.");
+ return false;
+ }
+ STMT_VINFO_MEMTAG (stmt_info) = tag;
break;
case VAR_DECL:
--
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