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1.1
date	2026.07.04.22.44.02;	author js;	state Exp;
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@@


1.1
log
@cross/ppc-morphos-gcc: Save r13 for baserel
@
text
@--- ./gcc/config/rs6000/rs6000.h.orig	2026-07-04 17:55:03.554901293 +0000
+++ ./gcc/config/rs6000/rs6000.h
@@@@ -1523,7 +1523,8 @@@@ typedef struct rs6000_args
    || (TARGET_ALTIVEC && (REGNO) == VRSAVE_REGNO)		\
    || (crtl->calls_eh_return					\
        && TARGET_AIX						\
-       && (REGNO) == 2))
+       && (REGNO) == 2)                                         \
+   || (crtl->calls_eh_return && (REGNO) == 13))
 
 
 /* Length in units of the trampoline for entering a nested function.  */
--- ./gcc/config/rs6000/rs6000-logue.cc.orig	2026-07-04 17:56:56.172827431 +0000
+++ ./gcc/config/rs6000/rs6000-logue.cc
@@@@ -114,6 +114,11 @@@@ save_reg_p (int reg)
 	return true;
     }
 
+#ifdef TARGET_BASEREL
+  if (reg == 13 && (crtl->calls_eh_return || crtl->saves_all_registers))
+    return true;
+#endif
+
   return !call_used_or_fixed_reg_p (reg) && df_regs_ever_live_p (reg);
 }
 
@@@@ -2689,6 +2694,8 @@@@ rs6000_get_separate_components (void)
       || (flag_pic && DEFAULT_ABI == ABI_DARWIN))
     bitmap_clear_bit (components, RS6000_PIC_OFFSET_TABLE_REGNUM);
 
+  bitmap_clear_bit (components, 13);
+
   /* The FPRs we need saved to the frame.  */
   if ((info->savres_strategy & SAVE_INLINE_FPRS)
       && (info->savres_strategy & REST_INLINE_FPRS))
@