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riscv-gcc-1
Commit 17b2557c by DJ Delorie Committed by DJ Delorie
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rl78.c (rl78_expand_prologue): Use AX to copy between SP and FP. 

* config/rl78/rl78.c (rl78_expand_prologue): Use AX to copy
between SP and FP.
(rl78_expand_epilogue): Likewise.

From-SVN: r202542
parent 984417a0
Showing with 15 additions and 3 deletions
gcc/ChangeLog
2013-09-12 DJ Delorie <dj@redhat.com>
* config/rl78/rl78.c (rl78_expand_prologue): Use AX to copy
between SP and FP.
(rl78_expand_epilogue): Likewise.
2013-09-12 Vladimir Makarov <vmakarov@redhat.com>
PR middle-end/58335
......
gcc/config/rl78/rl78.c
......@@ -1036,8 +1036,12 @@ rl78_expand_prologue (void)
emit_insn (gen_sel_rb (GEN_INT (0)));
if (frame_pointer_needed)
F (emit_move_insn (gen_rtx_REG (HImode, FRAME_POINTER_REGNUM),
gen_rtx_REG (HImode, STACK_POINTER_REGNUM)));
{
F (emit_move_insn (gen_rtx_REG (HImode, AX_REG),
gen_rtx_REG (HImode, STACK_POINTER_REGNUM)));
F (emit_move_insn (gen_rtx_REG (HImode, FRAME_POINTER_REGNUM),
gen_rtx_REG (HImode, AX_REG)));
}
fs = cfun->machine->framesize_locals + cfun->machine->framesize_outgoing;
while (fs > 0)
......@@ -1061,8 +1065,10 @@ rl78_expand_epilogue (void)
if (frame_pointer_needed)
{
emit_move_insn (gen_rtx_REG (HImode, STACK_POINTER_REGNUM),
emit_move_insn (gen_rtx_REG (HImode, AX_REG),
gen_rtx_REG (HImode, FRAME_POINTER_REGNUM));
emit_move_insn (gen_rtx_REG (HImode, STACK_POINTER_REGNUM),
gen_rtx_REG (HImode, AX_REG));
}
else
{
......
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