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5 Commits

Author SHA1 Message Date
Sam Clegg 0f0a428738 [WebAssembly] Remove special handling of entry point export. 
Its much easier to export it via setHidden(false), now that
that is a thing.

As a side effect the start function is not longer always exports first
(becuase its being exported just like all the other function).

Differential Revision: https://reviews.llvm.org/D42321

llvm-svn: 323025
 2018-01-20 01:44:45 +00:00
Sam Clegg 51bcdc2d49 [WebAssembly] Define __heap_base global 
This is an immutable exported global representing
the start of the heap area.  It is a page aligned.

Differential Revision: https://reviews.llvm.org/D42030

llvm-svn: 322609
 2018-01-17 01:34:31 +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 f50534b127 [WebAssembly] Update YAML in tests to match LLVM change 
Differential Revision: https://reviews.llvm.org/D41878

llvm-svn: 322122
 2018-01-09 21:47:36 +00:00
Sam Clegg 87e61923a4 [WebAssembly] Write out undefined symbol addresses as zero 
The addresses of undefined symbols that make it into the final
executable (i.e. weak references to non-existent symbols) should
resolve to zero.

Also, make sure to not include function in the indirect function
table if they are not included in the output.

Differential Revision: https://reviews.llvm.org/D41839

llvm-svn: 322045
 2018-01-08 23:39:11 +00:00