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-rw-r--r--gcc/gimplify.c10
1 files changed, 10 insertions, 0 deletions
diff --git a/gcc/gimplify.c b/gcc/gimplify.c
index c6a79fb..d2625a7 100644
--- a/gcc/gimplify.c
+++ b/gcc/gimplify.c
@@ -6441,6 +6441,16 @@ gimplify_expr (tree *expr_p, gimple_seq *pre_p, gimple_seq *post_p,
/* Constants need not be gimplified. */
case INTEGER_CST:
+ /* Don't preserve TREE_OVERFLOW flags, it only inhibits
+ many optimizations and FEs should have taken care of
+ reporting all the required diagnostics. */
+ if (TREE_OVERFLOW (*expr_p))
+ *expr_p = build_int_cst_wide (TREE_TYPE (*expr_p),
+ TREE_INT_CST_LOW (*expr_p),
+ TREE_INT_CST_HIGH (*expr_p));
+ ret = GS_ALL_DONE;
+ break;
+
case REAL_CST:
case FIXED_CST:
case STRING_CST: