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//===- WebAssemblyInstrControl.td-WebAssembly control-flow ------*- tablegen -*-
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
///
/// \file
/// \brief WebAssembly control-flow code-gen constructs.
///
//===----------------------------------------------------------------------===//
/*
* TODO(jfb): Add the following.
*
* block: a fixed-length sequence of statements
* if: if statement
* do_while: do while statement, basically a loop with a conditional branch
* forever: infinite loop statement (like while (1)), basically an unconditional
* branch (back to the top of the loop)
* continue: continue to start of nested loop
* break: break to end from nested loop or block
* switch: switch statement with fallthrough
*/
multiclass RETURN<WebAssemblyRegClass vt> {
def RETURN_#vt : I<(outs), (ins vt:$val), [(WebAssemblyreturn vt:$val)]>;
}
let hasSideEffects = 1, isReturn = 1, isTerminator = 1, hasCtrlDep = 1,
isBarrier = 1 in {
defm : RETURN<Int32>;
defm : RETURN<Int64>;
defm : RETURN<Float32>;
defm : RETURN<Float64>;
def RETURN_VOID : I<(outs), (ins), [(WebAssemblyreturn)]>;
} // hasSideEffects = 1, isReturn = 1, isTerminator = 1, hasCtrlDep = 1,
// isBarrier = 1
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