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#! /bin/sh -e
# DP: Two patches by Andreas Schwab to fix -fpic and loop optimization.
# DP: Another patch by Andreas Schwab to fix %a5 restauration in some cases.
if [ $# -eq 3 -a "$2" = '-d' ]; then
pdir="-d $3"
elif [ $# -ne 1 ]; then
echo >&2 "`basename $0`: script expects -patch|-unpatch as argument"
exit 1
fi
case "$1" in
-patch) patch $pdir -f --no-backup-if-mismatch -p0 < $0;;
-unpatch) patch $pdir -f --no-backup-if-mismatch -R -p0 < $0;;
*)
echo >&2 "`basename $0`: script expects -patch|-unpatch as argument"
exit 1
esac
exit 0
------------------------------------------------------------------------------
--- gcc/config/m68k/m68k.c~ Mon Aug 2 06:51:08 1999
+++ gcc/config/m68k/m68k.c Fri Oct 22 11:47:09 1999
@@ -356,7 +356,7 @@
mask &= ~ (1 << (15 - FRAME_POINTER_REGNUM));
num_saved_regs--;
}
- if (flag_pic && regs_ever_live[PIC_OFFSET_TABLE_REGNUM])
+ if (flag_pic && current_function_uses_pic_offset_table)
{
mask |= 1 << (15 - PIC_OFFSET_TABLE_REGNUM);
num_saved_regs++;
@@ -493,7 +493,10 @@
for (regno = 0 ; regno < FIRST_PSEUDO_REGISTER ; regno++)
if (regs_ever_live[regno] && ! call_used_regs[regno])
return 0;
-
+
+ if (flag_pic && current_function_uses_pic_offset_table)
+ return 0;
+
return 1;
}
@@ -568,7 +571,7 @@
nregs++;
mask |= 1 << regno;
}
- if (flag_pic && regs_ever_live[PIC_OFFSET_TABLE_REGNUM])
+ if (flag_pic && current_function_uses_pic_offset_table)
{
nregs++;
mask |= 1 << PIC_OFFSET_TABLE_REGNUM;
@@ -1334,8 +1337,6 @@
gen_rtx_PLUS (Pmode,
pic_offset_table_rtx, orig));
current_function_uses_pic_offset_table = 1;
- if (reload_in_progress)
- regs_ever_live[PIC_OFFSET_TABLE_REGNUM] = 1;
RTX_UNCHANGING_P (pic_ref) = 1;
emit_move_insn (reg, pic_ref);
return reg;
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