diff options
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/ChangeLog | 6 | ||||
| -rw-r--r-- | gcc/config/stormy16/stormy16.c | 12 |
2 files changed, 17 insertions, 1 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 6317e38..25d1c5d 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,9 @@ +2020-04-03 Jeff Law <law@redhat.com> + + PR rtl-optimization/92264 + * config/stormy16/stormy16.c (xstormy16_preferred_reload_class): Handle + reloading of auto-increment addressing modes. + 2020-04-03 H.J. Lu <hongjiu.lu@intel.com> PR target/94467 diff --git a/gcc/config/stormy16/stormy16.c b/gcc/config/stormy16/stormy16.c index 55fe829..2141531 100644 --- a/gcc/config/stormy16/stormy16.c +++ b/gcc/config/stormy16/stormy16.c @@ -497,7 +497,17 @@ xstormy16_secondary_reload_class (enum reg_class rclass, static reg_class_t xstormy16_preferred_reload_class (rtx x, reg_class_t rclass) { - if (rclass == GENERAL_REGS && MEM_P (x)) + /* Only the first eight registers can be moved to/from memory. + So those prefer EIGHT_REGS. + + Similarly reloading an auto-increment address is going to + require loads and stores, so we must use EIGHT_REGS for those + too. */ + if (rclass == GENERAL_REGS + && (MEM_P (x) + || GET_CODE (x) == POST_INC + || GET_CODE (x) == PRE_DEC + || GET_CODE (x) == PRE_MODIFY)) return EIGHT_REGS; return rclass; |