https://gcc.gnu.org/g:7175fece7df50326703e4ca8b49d7cc93a5e8dfe
commit r15-5052-g7175fece7df50326703e4ca8b49d7cc93a5e8dfe
Author: John David Anglin <dang...@gcc.gnu.org>
Date: Fri Nov 8 16:58:49 2024 -0500
hppa: Don't allow mode size 32 in hard registers
LRA has problems handling spills for OI mode. There are issues with
SUBREG support as well.
2024-11-08 John David Anglin <dang...@gcc.gnu.org>
gcc/ChangeLog:
PR target/117238
* config/pa/pa64-regs.h (PA_HARD_REGNO_MODE_OK): Don't allow
mode size 32.
Diff:
---
gcc/config/pa/pa64-regs.h | 7 ++-----
1 file changed, 2 insertions(+), 5 deletions(-)
diff --git a/gcc/config/pa/pa64-regs.h b/gcc/config/pa/pa64-regs.h
index 3b9273c28677..90762e119dcf 100644
--- a/gcc/config/pa/pa64-regs.h
+++ b/gcc/config/pa/pa64-regs.h
@@ -157,13 +157,10 @@ along with GCC; see the file COPYING3. If not see
: FP_REGNO_P (REGNO)
\
? (VALID_FP_MODE_P (MODE) \
&& (GET_MODE_SIZE (MODE) <= 8 \
- || (GET_MODE_SIZE (MODE) == 16 && ((REGNO) & 1) == 0) \
- || (GET_MODE_SIZE (MODE) == 32 && ((REGNO) & 3) == 0))) \
+ || (GET_MODE_SIZE (MODE) == 16 && ((REGNO) & 1) == 0))) \
: (GET_MODE_SIZE (MODE) <= UNITS_PER_WORD \
|| (GET_MODE_SIZE (MODE) == 2 * UNITS_PER_WORD \
- && ((((REGNO) & 1) == 1 && (REGNO) <= 25) || (REGNO) == 28)) \
- || (GET_MODE_SIZE (MODE) == 4 * UNITS_PER_WORD \
- && ((REGNO) & 3) == 3 && (REGNO) <= 23)))
+ && ((((REGNO) & 1) == 1 && (REGNO) <= 25) || (REGNO) == 28))))
/* How to renumber registers for gdb.
