Don't use r12 to store CR when using saveds, as __restore_r13 will need the
passed r12.

--- gcc/config/rs6000/rs6000-logue.cc.orig	2025-06-01 00:58:21.923156281 +0000
+++ gcc/config/rs6000/rs6000-logue.cc
@@ -3343,6 +3343,16 @@ rs6000_emit_prologue (void)
       emit_insn (gen_hashst (mem, reg0));
     }
 
+  /* If we need to save CR, put it into r12 or r11.  Choose r12 except when
+     r12 will be needed by out-of-line gpr save.  */
+  if (DEFAULT_ABI == ABI_AIX
+      && !(strategy & (SAVE_INLINE_GPRS | SAVE_NOINLINE_GPRS_SAVES_LR)))
+    cr_save_regno = 11;
+  else if (DEFAULT_ABI == ABI_ELFv2)
+    cr_save_regno = 11;
+  else
+    cr_save_regno = 12;
+
 #ifdef TARGET_BASEREL
   if (info->baserel_save_p && TARGET_BASEREL)
     {
@@ -3357,17 +3367,10 @@ rs6000_emit_prologue (void)
       reg = gen_rtx_REG (reg_mode, 13);
       insn = emit_move_insn (mem, reg);
       rs6000_frame_related (insn, sp_reg_rtx, info->total_size, NULL_RTX, NULL_RTX);
+
+      cr_save_regno = 11;
     }
 #endif
-  /* If we need to save CR, put it into r12 or r11.  Choose r12 except when
-     r12 will be needed by out-of-line gpr save.  */
-  if (DEFAULT_ABI == ABI_AIX
-      && !(strategy & (SAVE_INLINE_GPRS | SAVE_NOINLINE_GPRS_SAVES_LR)))
-    cr_save_regno = 11;
-  else if (DEFAULT_ABI == ABI_ELFv2)
-    cr_save_regno = 11;
-  else
-    cr_save_regno = 12;
   if (!WORLD_SAVE_P (info)
       && info->cr_save_p
       && REGNO (frame_reg_rtx) != cr_save_regno