diff options
Diffstat (limited to 'src/ir/module-splitting.h')
| -rw-r--r-- | src/ir/module-splitting.h | 12 |
1 files changed, 8 insertions, 4 deletions
diff --git a/src/ir/module-splitting.h b/src/ir/module-splitting.h index 765a1f853..09b4c0793 100644 --- a/src/ir/module-splitting.h +++ b/src/ir/module-splitting.h @@ -19,16 +19,20 @@ // functions to a new secondary module and rewriting the primary module to call // them indirectly. Until the secondary module is instantiated, those indirect // calls will go to placeholder functions newly imported into the primary -// module. The import names of the placeholder functions are the table indexes -// they are placed at. The secondary module imports all of its dependencies from -// the primary module. +// module. If the primary module has a single segment with a non-constant +// offset, the placeholder function import names are the offsets from that base +// global of the corresponding functions in the table. Otherwise, the +// placeholder import names are the absolute table indices of the corresponding +// functions. The secondary module imports all of its dependencies from the +// primary module. // // This code currently makes a few assumptions about the modules that will be // split and will fail assertions if those assumptions are not true. // // 1) It assumes that mutable-globals are allowed. // -// 2) It assumes that all table segment offsets are constants. +// 2) It assumes that either all segment offsets are constants or there is +// exactly one segment that may have a non-constant offset. // // 3) It assumes that each function appears in the table at most once. // |