re PR rtl-optimization/61522 (ICE while building libgcc in LRA)

2014-06-16  Vladimir Makarov  <vmakarov@redhat.com>

	PR rtl-optimization/61522
	* lra-assigns.c (assign_by_spills): Check null
	targetm.spill_class.

From-SVN: r211711

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 4c2a104a44e9dbe19125df94a2fdc7c4f418ef71..b74893a59ec94486ae79302337009b1fa00ecb99 100644 (file)
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,9 @@
+2014-06-16  Vladimir Makarov  <vmakarov@redhat.com>
+
+       PR rtl-optimization/61522
+       * lra-assigns.c (assign_by_spills): Check null
+       targetm.spill_class.
+
 2014-06-16  Jan Hubicka  <hubicka@ucw.cz>
 
        Revert:

diff --git a/gcc/lra-assigns.c b/gcc/lra-assigns.c
index cea4c33b9aa9827145bc7bc32fbb151e389bb93f..83795bac49a33dd08afface74f85959872161a3c 100644 (file)
--- a/gcc/lra-assigns.c
+++ b/gcc/lra-assigns.c
@@ -1425,7 +1425,8 @@ assign_by_spills (void)
              enum reg_class rclass = lra_get_allocno_class (regno);
              enum reg_class spill_class;
              
-             if (lra_reg_info[regno].restore_regno < 0
+             if (targetm.spill_class == NULL
+                 || lra_reg_info[regno].restore_regno < 0
                  || ! bitmap_bit_p (&lra_inheritance_pseudos, regno)
                  || (spill_class
                      = ((enum reg_class)