1 files changed, 37 insertions, 0 deletions
diff --git a/gcc/testsuite/g++.dg/parse/limits-initializer1.C b/gcc/testsuite/g++.dg/parse/limits-initializer1.C
new file mode 100644
index 000000000..4b507912f
--- /dev/null
+++ b/gcc/testsuite/g++.dg/parse/limits-initializer1.C
@@ -0,0 +1,37 @@
+// PR middle-end/42803
+// { dg-do compile }
+// { dg-options "-O0" }
+
+#define X2 (a + a)
+#define X4 (X2 + X2)
+#define X8 (X4 + X4)
+#define X16 (X8 + X8)
+#define X32 (X16 + X16)
+#define X64 (X32 + X32)
+#define X128 (X64 + X64)
+#define X256 (X128 + X128)
+#define X512 (X256 + X256)
+#define X1024 (X512 + X512)
+#define X2048 (X1024 + X1024)
+#define X4096 (X2048 + X2048)
+#define X8192 (X4096 + X4096)
+#define X16384 (X8192 + X8192)
+#define X32768 (X16384 + X16384)
+#define X65536 (X32768 + X32768)
+#define X131072 (X65536 + X65536)
+#define X262144 (X131072 + X131072)
+
+int
+foo (int a)
+{
+  int v = X262144;
+  return v;
+}
+
+// Emit an error to just make sure we don't waste too much time
+// in the middle-end compiling this.
+int
+bar (void)
+{
+  return x;	// { dg-error "was not declared in this scope" }
+}