From 07c60ef701e0fe0c65f0186bd521ee83b6c24c3c Mon Sep 17 00:00:00 2001
From: Rainer Orth <ro@CeBiTec.Uni-Bielefeld.DE>
Date: Thu, 8 Apr 2010 14:48:46 +0000
Subject: [PATCH] re PR target/43643 (gcc -m64 -pg corrupts %rdx / %rcx
 register)

	gcc:
	PR target/43643
	* config/i386/gmon-sol2.c [__x86_64__]: Properly restore %rcx.

	gcc/testsuite:
	PR target/43643
	* gcc.dg/pr43643.c: New test.

From-SVN: r158130
---
 gcc/ChangeLog                  |  5 +++++
 gcc/config/i386/gmon-sol2.c    |  2 +-
 gcc/testsuite/ChangeLog        |  5 +++++
 gcc/testsuite/gcc.dg/pr43643.c | 24 ++++++++++++++++++++++++
 4 files changed, 35 insertions(+), 1 deletion(-)
 create mode 100644 gcc/testsuite/gcc.dg/pr43643.c

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index e23b3fbcacbb..0d9eb6de3cf0 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,8 @@
+2010-04-08  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
+
+	PR target/43643
+	* config/i386/gmon-sol2.c [__x86_64__]: Properly restore %rcx.
+
 2010-04-08  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
 
 	* doc/install.texi (Specific, i?86-*-solaris2.10): Fix grammar.
diff --git a/gcc/config/i386/gmon-sol2.c b/gcc/config/i386/gmon-sol2.c
index e0923a0770f6..fb813a12d25a 100644
--- a/gcc/config/i386/gmon-sol2.c
+++ b/gcc/config/i386/gmon-sol2.c
@@ -275,7 +275,7 @@ asm(".globl _mcount\n"
     "\tmovq\t0x20(%rsp),%rdi\n"
     "\tmovq\t0x18(%rsp),%rsi\n"
     "\tmovq\t0x10(%rsp),%rdx\n"
-    "\tmovq\t0x08(%rsp),%rdx\n"
+    "\tmovq\t0x08(%rsp),%rcx\n"
     "\tmovq\t(%rsp),%rax\n"
     "\taddq\t$0x38,%rsp\n"
     "\tretq\n"
diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog
index d46f37528b9f..738ee299478e 100644
--- a/gcc/testsuite/ChangeLog
+++ b/gcc/testsuite/ChangeLog
@@ -1,3 +1,8 @@
+2010-04-08  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
+
+	PR target/43643
+	* gcc.dg/pr43643.c: New test.
+
 2010-04-08  Tobias Burnus  <burnus@net-b.de>
 
 	* gfortran.dg/iso_fortran_env_6.f90: Add more checks.
diff --git a/gcc/testsuite/gcc.dg/pr43643.c b/gcc/testsuite/gcc.dg/pr43643.c
new file mode 100644
index 000000000000..7fbbfc255f36
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/pr43643.c
@@ -0,0 +1,24 @@
+/* Contributed by Jürgen Keil <jrgn.keil@googlemail.com> */
+
+/* { dg-do run } */
+/* { dg-require-profiling "-pg" } */
+/* { dg-options "-O2 -pg" } */
+
+extern char *strdup (const char *);
+
+void
+func(char *a, char *b, char *c)
+{
+  strdup(a);
+  strdup(b);
+  strdup(c);
+}
+
+int
+main(void)
+{
+  func("a", "b", "c");
+  return 0;
+}
+
+/* { dg-final { cleanup-profile-file } } */
-- 
2.47.2