Commit Graph

7 Commits

Author SHA1 Message Date
JF Bastien
9f16772a3d WebAssembly: fix syntax for br_if.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@250777 91177308-0d34-0410-b5e6-96231b3b80d8
2015-10-20 00:37:42 +00:00
JF Bastien
d433cde1a1 WebAssembly: fix load/store syntax
Summary: The syntax has changed a bit recently.

Reviewers: binji

Subscribers: llvm-commits, jfb, sunfish, dschuff

Differential Revision: http://reviews.llvm.org/D13821

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@250535 91177308-0d34-0410-b5e6-96231b3b80d8
2015-10-16 18:24:42 +00:00
JF Bastien
8cafdf539b WebAssembly: update syntax
Summary:
Follow the same syntax as for the spec repo. Both have evolved slightly
independently and need to converge again.

This, along with wasmate changes, allows me to do the following:

  echo "int add(int a, int b) { return a + b; }" > add.c
  ./out/bin/clang -O2 -S --target=wasm32-unknown-unknown add.c -o add.wack
  ./experimental/prototype-wasmate/wasmate.py add.wack > add.wast
  ./sexpr-wasm-prototype/out/sexpr-wasm add.wast -o add.wasm
  ./sexpr-wasm-prototype/third_party/v8-native-prototype/v8/v8/out/Release/d8 -e "print(WASM.instantiateModule(readbuffer('add.wasm'), {print:print}).add(42, 1337));"

As you'd expect, the d8 shell prints out the right value.

Reviewers: sunfish

Subscribers: jfb, llvm-commits, dschuff

Differential Revision: http://reviews.llvm.org/D13712

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@250480 91177308-0d34-0410-b5e6-96231b3b80d8
2015-10-16 00:53:49 +00:00
Dan Gohman
2d3e3ef1c7 [WebAssembly] Switch to a more traditional assembly syntax
This new syntax is built around putting each instruction on its own line
in a "mnemonic op, op, op" like syntax. It also uses conventional data
section directives like ".byte" and so on rather than requiring everything
to be in hierarchical S-expression format. This is a more natural syntax
for a ".s" file format from the perspective of LLVM MC and related tools,
while remaining easy to translate into other forms as needed.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@249364 91177308-0d34-0410-b5e6-96231b3b80d8
2015-10-06 00:27:55 +00:00
Dan Gohman
e7c8e13fb5 [WebAssembly] Update this test for the new loop scheme.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@249217 91177308-0d34-0410-b5e6-96231b3b80d8
2015-10-02 23:54:03 +00:00
Dan Gohman
e865fa75b6 [WebAssembly] Fix CFG stackification of nested loops.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@249187 91177308-0d34-0410-b5e6-96231b3b80d8
2015-10-02 21:11:36 +00:00
Dan Gohman
7146e900e8 [WebAssembly] Check in an initial CFG Stackifier pass
This pass implements a simple algorithm for conversion from CFG to
wasm's structured control flow. It doesn't yet handle multiple-entry
loops; that will be added in a future patch.

It also adds initial support for switch statements.

Differential Revision: http://reviews.llvm.org/D12735


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@247818 91177308-0d34-0410-b5e6-96231b3b80d8
2015-09-16 16:51:30 +00:00