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-rw-r--r--gcc/fold-const.c6
1 files changed, 6 insertions, 0 deletions
diff --git a/gcc/fold-const.c b/gcc/fold-const.c
index f5bd659..3a7053e 100644
--- a/gcc/fold-const.c
+++ b/gcc/fold-const.c
@@ -5214,6 +5214,12 @@ fold_inf_compare (enum tree_code code, tree type, tree arg0, tree arg1)
if (! HONOR_NANS (mode))
return fold (build2 (neg ? GE_EXPR : LE_EXPR, type,
arg0, build_real (TREE_TYPE (arg0), max)));
+
+ /* The transformation below creates non-gimple code and thus is
+ not appropriate if we are in gimple form. */
+ if (in_gimple_form)
+ return NULL_TREE;
+
temp = fold (build2 (neg ? LT_EXPR : GT_EXPR, type,
arg0, build_real (TREE_TYPE (arg0), max)));
return fold (build1 (TRUTH_NOT_EXPR, type, temp));