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-rw-r--r--gcc/testsuite/gcc.dg/real-const-1.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.dg/real-const-1.c b/gcc/testsuite/gcc.dg/real-const-1.c
new file mode 100644
index 000000000..4c7058d17
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/real-const-1.c
@@ -0,0 +1,5 @@
+/* PR middle-end/21781. */
+/* { dg-do compile } */
+/* { dg-options "-Wall" } */
+
+int foo(void) { if (.0e200000000 == 0 ) return 1; }