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-rw-r--r--gcc/tree-vrp.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/gcc/tree-vrp.c b/gcc/tree-vrp.c
index 7579ee1330b..348382ecae3 100644
--- a/gcc/tree-vrp.c
+++ b/gcc/tree-vrp.c
@@ -4333,7 +4333,12 @@ find_switch_asserts (basic_block bb, gimple last)
edge e;
tree vec2;
size_t n = gimple_switch_num_labels(last);
+#if GCC_VERSION >= 4000
unsigned int idx;
+#else
+ /* Work around GCC 3.4 bug (PR 37086). */
+ volatile unsigned int idx;
+#endif
need_assert = false;
bsi = gsi_for_stmt (last);