diff options
Diffstat (limited to 'llvm/lib/Target/WebAssembly/WebAssemblyInstrControl.td')
| -rw-r--r-- | llvm/lib/Target/WebAssembly/WebAssemblyInstrControl.td | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/llvm/lib/Target/WebAssembly/WebAssemblyInstrControl.td b/llvm/lib/Target/WebAssembly/WebAssemblyInstrControl.td new file mode 100644 index 00000000000..59e6e3b6711 --- /dev/null +++ b/llvm/lib/Target/WebAssembly/WebAssemblyInstrControl.td @@ -0,0 +1,33 @@ +//===- 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 + */ + +let hasSideEffects = 1, isReturn = 1, isTerminator = 1, hasCtrlDep = 1, + isBarrier = 1 in { +//FIXME return more than just int32. +def RETURN : I<(outs), (ins Int32:$val), [(WebAssemblyreturn Int32:$val)]>; +} // hasSideEffects = 1, isReturn = 1, isTerminator = 1, hasCtrlDep = 1, + // isBarrier = 1 |
