From 85c2e6110c9a01ec817c30f1b7e20549d7229987 Mon Sep 17 00:00:00 2001
From: Adhemerval Zanella <azanella@linux.vnet.ibm.com>
Date: Thu, 20 Jun 2013 19:40:55 -0500
Subject: Fix loop construction to functions calls

Check wheter the compiler has the option -fno-tree-loop-distribute-patterns
to inhibit loop transformation to library calls and uses it on memset
and memmove default implementation to avoid recursive calls.
---
 string/memmove.c      | 1 +
 string/memset.c       | 1 +
 string/test-memmove.c | 1 +
 string/test-memset.c  | 1 +
 4 files changed, 4 insertions(+)

(limited to 'string')

diff --git a/string/memmove.c b/string/memmove.c
index 9dcd2f1f68..ec61e28c60 100644
--- a/string/memmove.c
+++ b/string/memmove.c
@@ -41,6 +41,7 @@
 #endif
 
 rettype
+inhibit_loop_to_libcall
 MEMMOVE (a1, a2, len)
      a1const void *a1;
      a2const void *a2;
diff --git a/string/memset.c b/string/memset.c
index 868be53bf9..74b5409218 100644
--- a/string/memset.c
+++ b/string/memset.c
@@ -21,6 +21,7 @@
 #undef memset
 
 void *
+inhibit_loop_to_libcall
 memset (dstpp, c, len)
      void *dstpp;
      int c;
diff --git a/string/test-memmove.c b/string/test-memmove.c
index 4ec55b2fcc..94576a299b 100644
--- a/string/test-memmove.c
+++ b/string/test-memmove.c
@@ -47,6 +47,7 @@ IMPL (memmove, 1)
 #endif
 
 char *
+inhibit_loop_to_libcall
 simple_memmove (char *dst, const char *src, size_t n)
 {
   char *ret = dst;
diff --git a/string/test-memset.c b/string/test-memset.c
index 9981fcef46..72a390e7d9 100644
--- a/string/test-memset.c
+++ b/string/test-memset.c
@@ -64,6 +64,7 @@ builtin_memset (char *s, int c, size_t n)
 #endif
 
 char *
+inhibit_loop_to_libcall
 simple_memset (char *s, int c, size_t n)
 {
   char *r = s, *end = s + n;
-- 
cgit 1.4.1