From: Jakub Jelinek <jakub@redhat.com>
Date: Thu, 16 Jan 2014 19:22:08 +0000 (+0100)
Subject: re PR debug/54694 (internal compiler error: in dwarf2out_frame_debug_expr, at dwarf2o... 
X-Git-Tag: releases/gcc-4.7.4~314
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=355e60597971748ff5a87f0e6e578d85a436a468;p=thirdparty%2Fgcc.git

re PR debug/54694 (internal compiler error: in dwarf2out_frame_debug_expr, at dwarf2out.c:2387)

	PR debug/54694
	* gcc.target/i386/pr9771-1.c (main): Rename to...
	(real_main): ... this.  Add __asm name "main".
	(ASMNAME, ASMNAME2, STRING): Define.

From-SVN: r206681
---

diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog
index 23c358b894e8..c009bf8a0c2a 100644
--- a/gcc/testsuite/ChangeLog
+++ b/gcc/testsuite/ChangeLog
@@ -1,3 +1,10 @@
+2014-01-16  Jakub Jelinek  <jakub@redhat.com>
+
+	PR debug/54694
+	* gcc.target/i386/pr9771-1.c (main): Rename to...
+	(real_main): ... this.  Add __asm name "main".
+	(ASMNAME, ASMNAME2, STRING): Define.
+
 2014-01-16  Marek Polacek  <polacek@redhat.com>
 
 	Backport from mainline
diff --git a/gcc/testsuite/gcc.target/i386/pr9771-1.c b/gcc/testsuite/gcc.target/i386/pr9771-1.c
index 38586fe9725d..daad319c3790 100644
--- a/gcc/testsuite/gcc.target/i386/pr9771-1.c
+++ b/gcc/testsuite/gcc.target/i386/pr9771-1.c
@@ -45,7 +45,17 @@ void test(void)
   exit(0);
 }
 
-int main()
+/* main usually performs dynamic realignment of the stack in case
+   _start would fail to properly align the stack, but for dynamic
+   stack realignment we need frame pointer which is incompatible
+   with -ffixed-ebp and the global register var.  So, cheat here
+   and hide from the compiler that main is really main.  */
+#define ASMNAME(cname)  ASMNAME2 (__USER_LABEL_PREFIX__, cname)
+#define ASMNAME2(prefix, cname) STRING (prefix) cname
+#define STRING(x)    #x
+int real_main() __asm (ASMNAME ("main"));
+
+int real_main()
 {
   test();
   return 0;