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| author | Heejin Ahn <aheejin@gmail.com> | 2017-06-30 00:43:15 +0000 |
|---|---|---|
| committer | Heejin Ahn <aheejin@gmail.com> | 2017-06-30 00:43:15 +0000 |
| commit | f21a6b7f6b38bb7864785dcd590d864c04b1d8d7 (patch) | |
| tree | 27ba2e5bc6858df26144ec9991b68dd1cb40d680 /test/CodeGen/WebAssembly | |
| parent | ec3ac50fcec960e1b90fbedb0d3e244e41695648 (diff) | |
[WebAssembly] Add support for exception handling instructions
Summary:
This adds backend support for throw, rethrow, try, and try_end instructions.
This needs the corresponding clang builtin support:
https://reviews.llvm.org/D34783
This follows the Wasm exception handling proposal in
https://github.com/WebAssembly/exception-handling/blob/master/proposals/Exceptions.md
Reviewers: sunfish, dschuff
Reviewed By: dschuff
Subscribers: jfb, sbc100, jgravelle-google
Differential Revision: https://reviews.llvm.org/D34826
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@306774 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test/CodeGen/WebAssembly')
| -rw-r--r-- | test/CodeGen/WebAssembly/exception.ll | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/test/CodeGen/WebAssembly/exception.ll b/test/CodeGen/WebAssembly/exception.ll new file mode 100644 index 00000000000..eedb5c78b24 --- /dev/null +++ b/test/CodeGen/WebAssembly/exception.ll @@ -0,0 +1,22 @@ +; RUN: llc < %s -asm-verbose=false -disable-wasm-fallthrough-return-opt -disable-wasm-explicit-locals | FileCheck %s + +target datalayout = "e-m:e-p:32:32-i64:64-n32:64-S128" +target triple = "wasm32-unknown-unknown-wasm" + +declare void @llvm.wasm.throw(i32, i8*) +declare void @llvm.wasm.rethrow() + +; CHECK-LABEL: throw: +; CHECK-NEXT: i32.const $push0=, 0 +; CHECK-NEXT: throw 0, $pop0 +define void @throw() { + call void @llvm.wasm.throw(i32 0, i8* null) + ret void +} + +; CHECK-LABEL: rethrow: +; CHECK-NEXT: rethrow 0 +define void @rethrow() { + call void @llvm.wasm.rethrow() + ret void +} |