diff options
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/ChangeLog | 4 | ||||
| -rw-r--r-- | gcc/config/arm/arm.c | 11 |
2 files changed, 13 insertions, 2 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index fb9b352..45fea8a 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,7 @@ +2008-09-01 Paul Brook <paul@codesourcery.com> + + * config/arm/arm.c (arm_no_early_mul_dep): Handle multiply-subtract. + 2008-00-01 Jan Hubicka <jh@suse.cz> * config/spu/spu.c (spu_expand_block_move) Update call of MOVE_RATIO. diff --git a/gcc/config/arm/arm.c b/gcc/config/arm/arm.c index 6a4b3ef..d22b4fe 100644 --- a/gcc/config/arm/arm.c +++ b/gcc/config/arm/arm.c @@ -18235,8 +18235,15 @@ arm_no_early_mul_dep (rtx producer, rtx consumer) op = XVECEXP (op, 0, 0); op = XEXP (op, 1); - return (GET_CODE (op) == PLUS - && !reg_overlap_mentioned_p (value, XEXP (op, 0))); + if (GET_CODE (op) == PLUS || GET_CODE (op) == MINUS) + { + if (GET_CODE (XEXP (op, 0)) == MULT) + return !reg_overlap_mentioned_p (value, XEXP (op, 0)); + else + return !reg_overlap_mentioned_p (value, XEXP (op, 1)); + } + + return 0; } /* We can't rely on the caller doing the proper promotion when |