Commit Graph

60 Commits

Author SHA1 Message Date
Sam Clegg 67abf53961 [WebAssembly] Don't duplicate functions in table output
Previously, we were ensuring that the "output index" for
InputFunctions was unique across all symbols that referenced
a function body, but allowing the same function body to have
multiple table indexes.

Now, we use the same mechanism for table indexes as we already
do for output indexes, ensuring that each InputFunction is only
placed in the table once.

This makes the LLD output table denser and smaller, but should
not change the behaviour.

Note that we still need the `Symbol::TableIndex` member, to
store the table index for function Symbols that don't have an
InputFunction, i.e. for address-taken imports.

Patch by Nicholas Wilson!

Differential Revision: https://reviews.llvm.org/D42476

llvm-svn: 323379
2018-01-24 21:45:25 +00:00
Sam Clegg ab604a9882 [WebAssembly] Update to match llvm changes to TABLE relocations
TABLE relocations now store the function that is being refered
to indirectly.

See rL323165.

Also extend the call-indirect.ll a little.

Based on a patch by Nicholas Wilson!

llvm-svn: 323168
2018-01-23 01:25:56 +00:00
Sam Clegg ff2b12216b [WebAssembly] Remove --emit-relocs
This was added to mimic ELF, but maintaining it has cost
and we currently don't have any use for it outside of the
test code.

Differential Revision: https://reviews.llvm.org/D42324

llvm-svn: 323154
2018-01-22 21:55:43 +00:00
Eric Christopher 9ea500b417 Remove extraneous semicolon.
llvm-svn: 322426
2018-01-13 00:44:45 +00:00
Sam Clegg 4a379c3dd8 [WebAssembly] Use ArrayRef over raw pointers
Differential Revision: https://reviews.llvm.org/D42013

llvm-svn: 322423
2018-01-13 00:22:00 +00:00
Sam Clegg f61910d8f6 [WebAssembly] Fix typo in file header
llvm-svn: 322412
2018-01-12 22:18:22 +00:00
Sam Clegg 5068685678 [WebAssembly] Create synthetic __wasm_call_ctors function
This change create a new synthetic function in the final
output binary which calls the static constructors in sequence.

See: https://github.com/WebAssembly/tool-conventions/issues/25

Differential Revision: https://reviews.llvm.org/D41893

llvm-svn: 322388
2018-01-12 18:35:13 +00:00
Sam Clegg 7ed293e448 [WebAssembly] Reduce output of --verbose
llvm-svn: 322337
2018-01-12 00:34:04 +00:00
Sam Clegg d96d93576b [WebAssembly] Move relocation handling InputChunks.cpp
Teach each input chunk how to write itself and apply its
own relocations.

Differential Revision: https://reviews.llvm.org/D41891

llvm-svn: 322212
2018-01-10 19:22:42 +00:00
Sam Clegg 5fa274bea4 [WebAssembly] Add InputChunk as common base class for InputSegment and InputFunction. NFC.
Differential Revision: https://reviews.llvm.org/D41419

llvm-svn: 322148
2018-01-10 01:13:34 +00:00