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3675555b63
This implements basic instructions for the new spec.
- Adds new versions of instructions: `catch`, `catch_all`, and `rethrow`
- Adds support for instruction selection for the new instructions
- `catch` needs a custom routine for the same reason `throw` needs one,
to encode `__cpp_exception` tag symbol.
- Updates `WebAssembly::isCatch` utility function to include `catch_all`
and Change code that compares an instruction's opcode with `catch` to
use that function.
- LateEHPrepare
- Previously in LateEHPrepare we added `catch` instruction to both
`catchpad`s (for user catches) and `cleanuppad`s (for destructors).
In the new version `catch` is generated from `llvm.catch` intrinsic
in instruction selection phase, so we only need to add `catch_all`
to the beginning of cleanup pads.
- `catch` is generated from instruction selection, but we need to
hoist the `catch` instruction to the beginning of every EH pad,
because `catch` can be in the middle of the EH pad or even in a
split BB from it after various code transformations.
- Removes `addExceptionExtraction` function, which was used to
generate `br_on_exn` before.
- CFGStackfiy: Deletes `fixUnwindMismatches` function. Running this
function on the new instruction causes crashes, and the new version
will be added in a later CL, whose contents will be completely
different. So deleting the whole function will make the diff easier to
read.
- Reenables all disabled tests in exception.ll and eh-lsda.ll and a
single basic test in cfg-stackify-eh.ll.
- Updates existing tests to use the new assembly format. And deletes
`br_on_exn` instructions from the tests and FileCheck lines.
Reviewed By: dschuff, tlively
Differential Revision: https://reviews.llvm.org/D94040
43 lines
1.3 KiB
C++
43 lines
1.3 KiB
C++
//- WebAssemblyISD.def - WebAssembly ISD ---------------------------*- C++ -*-//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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///
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/// \file
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/// This file describes the various WebAssembly ISD node types.
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///
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//===----------------------------------------------------------------------===//
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// NOTE: NO INCLUDE GUARD DESIRED!
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HANDLE_NODETYPE(CALL)
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HANDLE_NODETYPE(RET_CALL)
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HANDLE_NODETYPE(RETURN)
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HANDLE_NODETYPE(ARGUMENT)
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// A wrapper node for TargetExternalSymbol, TargetGlobalAddress, and MCSymbol
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HANDLE_NODETYPE(Wrapper)
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// A special wapper used in PIC code for __memory_base/__table_base relcative
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// access.
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HANDLE_NODETYPE(WrapperPIC)
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HANDLE_NODETYPE(BR_IF)
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HANDLE_NODETYPE(BR_TABLE)
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HANDLE_NODETYPE(SHUFFLE)
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HANDLE_NODETYPE(SWIZZLE)
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HANDLE_NODETYPE(VEC_SHL)
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HANDLE_NODETYPE(VEC_SHR_S)
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HANDLE_NODETYPE(VEC_SHR_U)
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HANDLE_NODETYPE(WIDEN_LOW_S)
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HANDLE_NODETYPE(WIDEN_LOW_U)
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HANDLE_NODETYPE(WIDEN_HIGH_S)
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HANDLE_NODETYPE(WIDEN_HIGH_U)
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HANDLE_NODETYPE(THROW)
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HANDLE_NODETYPE(CATCH)
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HANDLE_NODETYPE(MEMORY_COPY)
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HANDLE_NODETYPE(MEMORY_FILL)
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// Memory intrinsics
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HANDLE_MEM_NODETYPE(LOAD_SPLAT)
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