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| author | Jeff Law <law@redhat.com> | 2020-04-03 17:47:18 -0600 |
|---|---|---|
| committer | Jeff Law <law@redhat.com> | 2020-04-03 17:47:18 -0600 |
| commit | 7f26e60c2600f0a676fc9370390ebf0a3c78f31c (patch) | |
| tree | 683bf1102e1ebe31604c8eecb58bdd0ed86d25c4 /gcc | |
| parent | 0c809f727cd2a6c70c307d9dd53d26dc84bf292a (diff) | |
| download | gcc-7f26e60c2600f0a676fc9370390ebf0a3c78f31c.zip gcc-7f26e60c2600f0a676fc9370390ebf0a3c78f31c.tar.gz gcc-7f26e60c2600f0a676fc9370390ebf0a3c78f31c.tar.bz2 | |
Fix stdarg-3 regression on xstormy16 port
PR rtl-optimization/92264
* config/stormy16/stormy16.c (xstormy16_preferred_reload_class): Handle
reloading of auto-increment addressing modes.
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; |