diff options
Diffstat (limited to 'gcc/config/arm/arm.c')
| -rw-r--r-- | gcc/config/arm/arm.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/gcc/config/arm/arm.c b/gcc/config/arm/arm.c index be09282c17d..b93756a8ef4 100644 --- a/gcc/config/arm/arm.c +++ b/gcc/config/arm/arm.c @@ -5786,7 +5786,11 @@ thumb2_legitimate_index_p (enum machine_mode mode, rtx index, int strict_p) && (mode == SFmode || mode == DFmode || (TARGET_MAVERICK && mode == DImode))) return (code == CONST_INT && INTVAL (index) < 1024 - && INTVAL (index) > -1024 + /* Thumb-2 allows only > -256 index range for it's core register + load/stores. Since we allow SF/DF in core registers, we have + to use the intersection between -256~4096 (core) and -1024~1024 + (coprocessor). */ + && INTVAL (index) > -256 && (INTVAL (index) & 3) == 0); if (TARGET_REALLY_IWMMXT && VALID_IWMMXT_REG_MODE (mode)) |