diff options
| author | Chung-Ju Wu <jasonwucj@gmail.com> | 2018-03-28 13:26:42 +0000 |
|---|---|---|
| committer | Chung-Ju Wu <jasonwucj@gcc.gnu.org> | 2018-03-28 13:26:42 +0000 |
| commit | 15c193e2f5ce96026cc02828f4f91b1c9e832ea8 (patch) | |
| tree | 34da37a95b5bd3589ac945e5d92cb8974a153a18 | |
| parent | 7ee4f6f3ec4c51221a8fc44f98f5da4c95f779ae (diff) | |
| download | gcc-15c193e2f5ce96026cc02828f4f91b1c9e832ea8.zip gcc-15c193e2f5ce96026cc02828f4f91b1c9e832ea8.tar.gz gcc-15c193e2f5ce96026cc02828f4f91b1c9e832ea8.tar.bz2 | |
[NDS32] Adjust BRANCH_COST to prevent too much jump when compile with -Os.
gcc/
* config/nds32/nds32.h (BRANCH_COST): Adjust cost.
From-SVN: r258921
| -rw-r--r-- | gcc/ChangeLog | 4 | ||||
| -rw-r--r-- | gcc/config/nds32/nds32.h | 2 |
2 files changed, 5 insertions, 1 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 69b715e..f7f37cb 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,7 @@ +2018-03-27 Chung-Ju Wu <jasonwucj@gmail.com> + + * config/nds32/nds32.h (BRANCH_COST): Adjust cost. + 2018-03-27 Michael Meissner <meissner@linux.vnet.ibm.com> PR target/84914 diff --git a/gcc/config/nds32/nds32.h b/gcc/config/nds32/nds32.h index 3776067..b12274a 100644 --- a/gcc/config/nds32/nds32.h +++ b/gcc/config/nds32/nds32.h @@ -865,7 +865,7 @@ enum reg_class /* A C expression for the cost of a branch instruction. A value of 1 is the default; other values are interpreted relative to that. */ -#define BRANCH_COST(speed_p, predictable_p) ((speed_p) ? 2 : 0) +#define BRANCH_COST(speed_p, predictable_p) ((speed_p) ? 2 : 1) /* Override BRANCH_COST heuristic which empirically produces worse performance for removing short circuiting from the logical ops. */ |