new file mode 100644
@@ -0,0 +1,13 @@
+/* { dg-do compile } */
+/* { dg-options "-O2" } */
+
+extern void f (int, int);
+void g (int a, int b)
+{
+ int i, j;
+ for (i = a; i <= b; ++i)
+ __builtin_memcpy (g, f, 6);
+ for (j = a; j <= b; ++j)
+ f(j, i);
+}
+
@@ -610,17 +610,6 @@ for_each_index (tree *addr_p, bool (*cbck) (tree, tree *, void *), void *data)
return false;
break;
- case VAR_DECL:
- case PARM_DECL:
- case CONST_DECL:
- case STRING_CST:
- case RESULT_DECL:
- case VECTOR_CST:
- case COMPLEX_CST:
- case INTEGER_CST:
- case POLY_INT_CST:
- case REAL_CST:
- case FIXED_CST:
case CONSTRUCTOR:
return true;
@@ -644,6 +633,9 @@ for_each_index (tree *addr_p, bool (*cbck) (tree, tree *, void *), void *data)
return true;
default:
+ if (DECL_P (*addr_p)
+ || CONSTANT_CLASS_P (*addr_p))
+ return true;
gcc_unreachable ();
}
}
Bootstrapped and tested on x86_64-unknown-linux-gnu, applied. Richard. From 44d460d4e2737d89592d70475908000adf4775d6 Mon Sep 17 00:00:00 2001 From: Richard Guenther <rguenther@suse.de> Date: Tue, 5 Jun 2018 10:27:25 +0200 Subject: [PATCH] fix-pr86047 PR tree-optimization/86047 * tree-ssa-loop.c (for_each_index): Glob handling of all decls and constants and really handle all of them. * gcc.dg/pr86047.c: New testcase.