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| author | Georg-Johann Lay <avr@gjlay.de> | 2011-11-01 14:10:13 +0000 |
|---|---|---|
| committer | Georg-Johann Lay <gjl@gcc.gnu.org> | 2011-11-01 14:10:13 +0000 |
| commit | f1f59bc72456d213ef80a7f5688ffeb2af2dc020 (patch) | |
| tree | 64a7ad573ee0812364b547eb84d67b74032a6153 /gcc/config/avr/avr.h | |
| parent | fa4ba4affe94d6b88242f38aabe7fe480fc6ff4d (diff) | |
| download | gcc-f1f59bc72456d213ef80a7f5688ffeb2af2dc020.tar.gz | |
re PR target/50910 ([avr] inefficient division by 2)
PR target/50910
* config/avr/avr.opt (-mbranch-cost=): New option.
* config/avr/avr.h (BRANCH_COST): Define to avr_branch_cost.
* config/avr/avr.c (avr_rtx_costs_1): Adjust [U]DIV/[U]MOD costs.
* config/avr/avr.md (*addqi3.lt0, *addhi3.lt0, *addsi3.lt0): New insns.
(*addhi3_zero_extend1): Remov % in constraint of operand 1.
(*addhi3.sign_extend1, *subhi3.sign_extend2): New insns.
From-SVN: r180739
Diffstat (limited to 'gcc/config/avr/avr.h')
| -rw-r--r-- | gcc/config/avr/avr.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/gcc/config/avr/avr.h b/gcc/config/avr/avr.h index 50f64884c07..47ca8ff759a 100644 --- a/gcc/config/avr/avr.h +++ b/gcc/config/avr/avr.h @@ -385,7 +385,7 @@ typedef struct avr_args { } \ } while (0) -#define BRANCH_COST(speed_p, predictable_p) 0 +#define BRANCH_COST(speed_p, predictable_p) avr_branch_cost #define SLOW_BYTE_ACCESS 0 |