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3f2cb5c959
Summary: This prints assembly for int32 integer operations defined in WebAssemblyInstrInteger.td only, with major caveats: - The operation names are currently incorrect. - Other integer and floating-point types will be added later. - The printer isn't factored out to handle recursive AST code yet, since it can't even handle control flow anyways. - The assembly format isn't full s-expressions yet either, this will be added later. - This currently disables PrologEpilogCodeInserter as well as MachineCopyPropagation becasue they don't like virtual registers, which WebAssembly likes quite a bit. This will be fixed by factoring out NVPTX's change (currently a fork of PrologEpilogCodeInserter). Reviewers: sunfish Subscribers: llvm-commits, jfb Differential Revision: http://reviews.llvm.org/D11671 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@243763 91177308-0d34-0410-b5e6-96231b3b80d8
34 lines
1.2 KiB
TableGen
34 lines
1.2 KiB
TableGen
//===- WebAssemblyInstrControl.td-WebAssembly control-flow ------*- tablegen -*-
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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///
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/// \file
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/// \brief WebAssembly control-flow code-gen constructs.
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///
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//===----------------------------------------------------------------------===//
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/*
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* TODO(jfb): Add the following.
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*
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* block: a fixed-length sequence of statements
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* if: if statement
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* do_while: do while statement, basically a loop with a conditional branch
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* forever: infinite loop statement (like while (1)), basically an unconditional
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* branch (back to the top of the loop)
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* continue: continue to start of nested loop
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* break: break to end from nested loop or block
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* switch: switch statement with fallthrough
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*/
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let hasSideEffects = 1, isReturn = 1, isTerminator = 1, hasCtrlDep = 1,
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isBarrier = 1 in {
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//FIXME return more than just int32.
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def RETURN : I<(outs), (ins Int32:$val), [(WebAssemblyreturn Int32:$val)]>;
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} // hasSideEffects = 1, isReturn = 1, isTerminator = 1, hasCtrlDep = 1,
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// isBarrier = 1
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