Hi DJ,
Please may I apply the patch below. It fixes the RL78 backend so that
the stack register can be used as a base address register.
Tested with no regressions on an rl78-elf toolchain.
Cheers
Nick
PS. I am currently investigating allow r8-r15 to be used as base
registers.
gcc/ChangeLog
2013-01-28 Nick Clifton ni...@redhat.com
* config/rl78/rl78.c (rl78_regno_mode_code_ok_for_base_p): Allow
SP_REG.
Index: gcc/config/rl78/rl78.c
===
--- gcc/config/rl78/rl78.c (revision 195461)
+++ gcc/config/rl78/rl78.c (working copy)
@@ -769,7 +769,7 @@
addr_space_t address_space ATTRIBUTE_UNUSED,
int outer_code ATTRIBUTE_UNUSED, int
index_code)
{
- if (regno 24 regno = 16)
+ if (regno = SP_REG regno = 16)
return true;
if (index_code == REG)
return (regno == HL_REG);