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Better leveraged lfsr_traversal_init in high-level functions

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I think lfsr_traversal_rewind_ originally reset everything manually
because it was cheaper than creating a compound-literal, but this is no
longer relevant now that lfsr_traversal_init exists.

This saves a bit of code:

           code          stack          ctx
  before: 37844           2608          752
  after:  37812 (-0.1%)   2608 (+0.0%)  752 (+0.0%)
This commit is contained in:
Christopher Haster
2025-01-06 00:47:30 -06:00
parent eadc207dc5
commit 59b0906fa1
1 changed files with 3 additions and 14 deletions
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lfs.c
+3 -14
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@@ -14726,21 +14726,10 @@ static void lfsr_traversal_clobber(lfs_t *lfs, lfsr_traversal_t *t) {
static int lfsr_traversal_rewind_(lfs_t *lfs, lfsr_traversal_t *t) {
(void)lfs;
// reset traversal
t->o.o.flags = lfsr_t_settstate(
t->o.o.flags & ~(LFS_T_DIRTY | LFS_T_MUTATED),
LFSR_TSTATE_MROOTANCHOR);
t->o.o.mdir.mid = -1;
t->o.o.mdir.rbyd.weight = 0;
t->o.o.mdir.rbyd.blocks[0] = -1;
t->o.o.mdir.rbyd.blocks[1] = -1;
t->o.bshrub.u.bshrub.weight = 0;
t->o.bshrub.u.bshrub.blocks[0] = -1;
t->ot = NULL;
t->u.mtortoise.blocks[0] = 0;
t->u.mtortoise.blocks[1] = 0;
t->u.mtortoise.step = 0;
t->u.mtortoise.power = 0;
lfsr_traversal_init(t,
t->o.o.flags & ~(LFS_T_DIRTY | LFS_T_MUTATED | LFS_T_TSTATE));
// and clear any pending blocks
t->blocks[0] = -1;