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Differential D44930

[WebAssembly] Add exception and selector intrinsics
ClosedPublic

Authored by aheejin on Mar 27 2018, 7:13 AM.

Details

Reviewers
dschuff
jgravelle-google
Commits
rG37307b450f93: [WebAssembly] Add exception and selector intrinsics
rL328678: [WebAssembly] Add exception and selector intrinsics
Summary

Since wasm EH does not use landingpad instructions, these instructions
provide exception pointer and selector values until we lower them in
WasmEHPrepare.

Diff Detail

Event Timeline

aheejin created this revision.Mar 27 2018, 7:13 AM
Harbormaster completed remote builds in B16457: Diff 139918.Mar 27 2018, 7:13 AM
Herald added subscribers: llvm-commits, sunfish, jgravelle-google and 2 others. · View Herald TranscriptMar 27 2018, 7:13 AM
aheejin added a child revision: D44931: [WebAssembly] Use Windows EH instructions for Wasm EH.Mar 27 2018, 7:17 AM
jgravelle-google accepted this revision.Mar 27 2018, 7:44 AM
This revision is now accepted and ready to land.Mar 27 2018, 7:44 AM
Closed by commit rL328678: [WebAssembly] Add exception and selector intrinsics (authored by aheejin). · Explain WhyMar 27 2018, 4:39 PM
This revision was automatically updated to reflect the committed changes.

Revision Contents

PathSize
include/
llvm/
IR/
6 lines

Diff 139918

include/llvm/IR/IntrinsicsWebAssembly.td

Show All 33 Lines
//===----------------------------------------------------------------------===// //===----------------------------------------------------------------------===//
// Exception handling intrinsics // Exception handling intrinsics
//===----------------------------------------------------------------------===// //===----------------------------------------------------------------------===//
// throw / rethrow // throw / rethrow
def int_wasm_throw : Intrinsic<[], [llvm_i32_ty, llvm_ptr_ty], def int_wasm_throw : Intrinsic<[], [llvm_i32_ty, llvm_ptr_ty],
[Throws, IntrNoReturn]>; [Throws, IntrNoReturn]>;
def int_wasm_rethrow : Intrinsic<[], [], [Throws, IntrNoReturn]>; def int_wasm_rethrow : Intrinsic<[], [], [Throws, IntrNoReturn]>;
// Since wasm does not use landingpad instructions, these instructions return
// exception pointer and selector values until we lower them in WasmEHPrepare.
def int_wasm_get_exception : Intrinsic<[llvm_ptr_ty], [], [IntrHasSideEffects]>;
def int_wasm_get_ehselector : Intrinsic<[llvm_i32_ty], [],
[IntrHasSideEffects]>;
} }