diff options
| author | Ondrej Zajicek (work) <santiago@crfreenet.org> | 2022-03-09 02:32:29 +0100 |
|---|---|---|
| committer | Ondrej Zajicek <santiago@crfreenet.org> | 2022-06-27 21:13:32 +0200 |
| commit | a2527ee53d9d8fe7a1c29b56f8450b9ef1f9c7bc (patch) | |
| tree | a4dbac6cea35ef3c675c9a12b37dc67719b1b5ac /filter/decl.m4 | |
| parent | f31f4e6eef1762a4b9bf54a274f1ba9e9e161802 (diff) | |
Filter: Improve handling of stack frames in filter bytecode
When f_line is done, we have to pop the stack frame. The old code just
removed nominal number of args/vars. Change it to use stored ventry value
modified by number of returned values. This allows to allocate variables
on a stack frame during execution of f_lines instead of just at start.
But we need to know the number of returned values for a f_line. It is 1
for term, 0 for cmd. Store that to f_line during linearization.
Diffstat (limited to 'filter/decl.m4')
| -rw-r--r-- | filter/decl.m4 | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/filter/decl.m4 b/filter/decl.m4 index 3d118e34..4c56cd9c 100644 --- a/filter/decl.m4 +++ b/filter/decl.m4 @@ -216,7 +216,7 @@ whati->f$1 = f$1; FID_DUMP_BODY()m4_dnl f_dump_line(item->fl$1, indent + 1); FID_LINEARIZE_BODY()m4_dnl -item->fl$1 = f_linearize(whati->f$1); +item->fl$1 = f_linearize(whati->f$1, $2); FID_SAME_BODY()m4_dnl if (!f_same(f1->fl$1, f2->fl$1)) return 0; FID_ITERATE_BODY()m4_dnl @@ -568,7 +568,7 @@ FID_WR_PUT(8) } struct f_line * -f_linearize_concat(const struct f_inst * const inst[], uint count) +f_linearize_concat(const struct f_inst * const inst[], uint count, uint results) { uint len = 0; for (uint i=0; i<count; i++) @@ -580,6 +580,8 @@ f_linearize_concat(const struct f_inst * const inst[], uint count) for (uint i=0; i<count; i++) out->len = linearize(out, inst[i], out->len); + out->results = results; + #ifdef LOCAL_DEBUG f_dump_line(out, 0); #endif |