re PR target/38891 (using ms_abi function attribute with -mno-sse generates an internal compiler error)

gcc/

2009-02-17  Xuepeng Guo  <xuepeng.guo@intel.com>

	PR target/38891
	* config/i386/i386.h (CONDITIONAL_REGISTER_USAGE): Move the hunk of
	initialization for MS_ABI prior to the hunk of !TARGET_MMX.

gcc/testsuite

2009-02-17  Xuepeng Guo  <xuepeng.guo@intel.com>

	PR target/38891
	* gcc.dg/callabi/pr38891.c: New.

2009-02-17  H.J. Lu  <hongjiu.lu@intel.com>

	* gcc.dg/callabi/callabi.exp: New.

From-SVN: r144258

5 files changed, 67 insertions, 11 deletions

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 780468f..ac325e0 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,9 @@
+2009-02-17  Xuepeng Guo  <xuepeng.guo@intel.com>
+
+	PR target/38891
+	* config/i386/i386.h (CONDITIONAL_REGISTER_USAGE): Move the hunk of
+	initialization for MS_ABI prior to the hunk of !TARGET_MMX.
+
 2009-02-17  H.J. Lu  <hongjiu.lu@intel.com>
 
 	PR target/39082
diff --git a/gcc/config/i386/i386.h b/gcc/config/i386/i386.h
index 14e7438..a8b97d3 100644
--- a/gcc/config/i386/i386.h
+++ b/gcc/config/i386/i386.h
@@ -937,6 +937,17 @@ do {									\
 	fixed_regs[j] = 1;						\
 	call_used_regs[j] = 1;						\
       }									\
+    if (TARGET_64BIT							\
+        && ((cfun && cfun->machine->call_abi == MS_ABI)			\
+            || (!cfun && DEFAULT_ABI == MS_ABI)))			\
+      {									\
+        int i;								\
+        call_used_regs[4 /*RSI*/] = 0;                                  \
+        call_used_regs[5 /*RDI*/] = 0;                                  \
+	for (i = 0; i < 8; i++)						\
+	  call_used_regs[45+i] = 0;					\
+	call_used_regs[27] = call_used_regs[28] = 0;			\
+      }									\
     if (! TARGET_MMX)							\
       {									\
 	int i;								\
@@ -968,17 +979,6 @@ do {									\
 	for (i = FIRST_REX_SSE_REG; i <= LAST_REX_SSE_REG; i++)		\
 	  reg_names[i] = "";						\
       }									\
-    if (TARGET_64BIT							\
-        && ((cfun && cfun->machine->call_abi == MS_ABI)			\
-            || (!cfun && DEFAULT_ABI == MS_ABI)))			\
-      {									\
-        int i;								\
-        call_used_regs[4 /*RSI*/] = 0;                                  \
-        call_used_regs[5 /*RDI*/] = 0;                                  \
-	for (i = 0; i < 8; i++)						\
-	  call_used_regs[45+i] = 0;					\
-	call_used_regs[27] = call_used_regs[28] = 0;			\
-      }									\
   } while (0)
 
 /* Return number of consecutive hard regs needed starting at reg REGNO
diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog
index ca72b02..9b8b8a9 100644
--- a/gcc/testsuite/ChangeLog
+++ b/gcc/testsuite/ChangeLog
@@ -1,3 +1,12 @@
+2009-02-17  Xuepeng Guo  <xuepeng.guo@intel.com>
+
+	PR target/38891
+	* gcc.dg/callabi/pr38891.c: New.
+
+2009-02-17  H.J. Lu  <hongjiu.lu@intel.com>
+
+	* gcc.dg/callabi/callabi.exp: New.
+
 2009-02-17  H.J. Lu  <hongjiu.lu@intel.com>
 
 	PR target/39082
diff --git a/gcc/testsuite/gcc.dg/callabi/callabi.exp b/gcc/testsuite/gcc.dg/callabi/callabi.exp
new file mode 100644
index 0000000..1c11ecc
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/callabi/callabi.exp
@@ -0,0 +1,31 @@
+#   Copyright (C) 2009 Free Software Foundation, Inc.
+
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 3 of the License, or
+# (at your option) any later version.
+# 
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+# 
+# You should have received a copy of the GNU General Public License
+# along with GCC; see the file COPYING3.  If not see
+# <http://www.gnu.org/licenses/>.
+
+# GCC testsuite that uses the `dg.exp' driver.
+
+# Load support procs.
+load_lib gcc-dg.exp
+
+# If a testcase doesn't have special options, use these.
+global DEFAULT_CFLAGS
+if ![info exists DEFAULT_CFLAGS] then {
+    set DEFAULT_CFLAGS " -ansi -pedantic-errors"
+}
+
+dg-init
+dg-runtest [lsort [glob -nocomplain $srcdir/$subdir/*.\[cS\]]] \
+    "" $DEFAULT_CFLAGS
+dg-finish
diff --git a/gcc/testsuite/gcc.dg/callabi/pr38891.c b/gcc/testsuite/gcc.dg/callabi/pr38891.c
new file mode 100644
index 0000000..586e99f
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/callabi/pr38891.c
@@ -0,0 +1,10 @@
+/* Test for cross x86_64<->w64 abi standard calls.
+*/
+/* { dg-do compile { target { x86_64-*-* } } } */
+/* { dg-options "-mno-sse" } */
+#include "callabi.h"
+
+long double
+CALLABI_CROSS func_cross ()
+{
+}