forked from OSchip/llvm-project
40 lines
1.4 KiB
TableGen
40 lines
1.4 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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multiclass RETURN<WebAssemblyRegClass vt> {
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def RETURN_#vt : I<(outs), (ins vt:$val), [(WebAssemblyreturn vt:$val)]>;
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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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defm : RETURN<Int32>;
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defm : RETURN<Int64>;
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defm : RETURN<Float32>;
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defm : RETURN<Float64>;
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def RETURN_VOID : I<(outs), (ins), [(WebAssemblyreturn)]>;
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} // hasSideEffects = 1, isReturn = 1, isTerminator = 1, hasCtrlDep = 1,
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// isBarrier = 1
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