ChangeLog:

	PR target/44707
	* config/rs6000/rs6000.c (rs6000_legitimize_reload_address): Recognize
	(lo_sum (high ...) ...) patterns generated by earlier passes.

testsuite/ChangeLog:

	PR target/44707
	* gcc.c-torture/compile/pr44707.c: New test.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@161703 138bc75d-0d04-0410-961f-82ee72b054a4

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index c1e0ae7..4d05ea2 100644 (file)
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,9 @@
+2010-07-02  Ulrich Weigand  <Ulrich.Weigand@de.ibm.com>
+
+       PR target/44707
+       * config/rs6000/rs6000.c (rs6000_legitimize_reload_address): Recognize
+       (lo_sum (high ...) ...) patterns generated by earlier passes.
+
 2010-07-02  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
 
        * doc/install.texi (Prerequisites): Document Perl requirement on

diff --git a/gcc/config/rs6000/rs6000.c b/gcc/config/rs6000/rs6000.c
index 36187c9..a98b4dd 100644 (file)
--- a/gcc/config/rs6000/rs6000.c
+++ b/gcc/config/rs6000/rs6000.c
@@ -5934,6 +5934,17 @@ rs6000_legitimize_reload_address (rtx x, enum machine_mode mode,
       return x;
     }
 
+  /* Likewise for (lo_sum (high ...) ...) output we have generated.  */
+  if (GET_CODE (x) == LO_SUM
+      && GET_CODE (XEXP (x, 0)) == HIGH)
+    {
+      push_reload (XEXP (x, 0), NULL_RTX, &XEXP (x, 0), NULL,
+                  BASE_REG_CLASS, Pmode, VOIDmode, 0, 0,
+                  opnum, (enum reload_type)type);
+      *win = 1;
+      return x;
+    }
+
 #if TARGET_MACHO
   if (DEFAULT_ABI == ABI_DARWIN && flag_pic
       && GET_CODE (x) == LO_SUM

diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog
index c1a291d..9fe76bc 100644 (file)
--- a/gcc/testsuite/ChangeLog
+++ b/gcc/testsuite/ChangeLog
@@ -1,3 +1,8 @@
+2010-07-02  Ulrich Weigand  <Ulrich.Weigand@de.ibm.com>
+
+       PR target/44707
+       * gcc.c-torture/compile/pr44707.c: New test.
+
 2010-07-02  Paolo Carlini  <paolo.carlini@oracle.com>
 
        PR c++/44039

diff --git a/gcc/testsuite/gcc.c-torture/compile/pr44707.c b/gcc/testsuite/gcc.c-torture/compile/pr44707.c
new file mode 100644 (file)
index 0000000..9031f00
--- /dev/null
+++ b/gcc/testsuite/gcc.c-torture/compile/pr44707.c
@@ -0,0 +1,14 @@
+extern struct { int a, b, c, d; } v;
+extern int w;
+
+void
+foo (void)
+{
+  int e1 = v.a;
+  int e2 = w;
+  int e3 = v.b;
+  int e4 = v.c;
+  int e5 = v.d;
+  __asm__ volatile ("/* %0 %1 %2 %3 %4 */" : : "nro" (e1), "nro" (e2), "nro" (e3), "nro" (e4), "nro" (e5));
+}
+