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3 Commits

Author SHA1 Message Date
Dan Gohman 53ff96ab08 [WebAssembly] Basic support for Wasm object file encoding. 
With the "wasm32-unknown-unknown-wasm" triple, this allows writing out
simple wasm object files, and is another step in a larger series toward
migrating from ELF to general wasm object support. Note that this code
and the binary format itself is still experimental.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@296190 91177308-0d34-0410-b5e6-96231b3b80d8
 2017-02-24 23:18:00 +00:00
Dan Gohman 1a513a6964 [WebAssembly] Optimize away return instructions using fallthroughs. 
This saves a small amount of code size, and is a first small step toward
passing values on the stack across block boundaries.

Differential Review: http://reviews.llvm.org/D20450


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@270294 91177308-0d34-0410-b5e6-96231b3b80d8
 2016-05-21 00:21:56 +00:00
Dan Gohman c40a684451 [WebAssembly] Fix legalization of i128 shifts. 
compiler-rt/libgcc shift routines expect the shift count to be an i32, so
use i32 as the shift count for shifts that are legalized to libcalls. This
also reverts r268991, now that the signatures are correct.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@269531 91177308-0d34-0410-b5e6-96231b3b80d8
 2016-05-14 02:15:47 +00:00