1// WebAssemblyInstrInteger.td-WebAssembly Integer codegen -------*- tablegen -*- 2// 3// The LLVM Compiler Infrastructure 4// 5// This file is distributed under the University of Illinois Open Source 6// License. See LICENSE.TXT for details. 7// 8//===----------------------------------------------------------------------===// 9/// 10/// \file 11/// \brief WebAssembly Integer operand code-gen constructs. 12/// 13//===----------------------------------------------------------------------===// 14 15let Defs = [ARGUMENTS] in { 16 17// The spaces after the names are for aesthetic purposes only, to make 18// operands line up vertically after tab expansion. 19let isCommutable = 1 in 20defm ADD : BinaryInt<add, "add ">; 21defm SUB : BinaryInt<sub, "sub ">; 22let isCommutable = 1 in 23defm MUL : BinaryInt<mul, "mul ">; 24// Divide and remainder trap on a zero denominator. 25let hasSideEffects = 1 in { 26defm DIV_S : BinaryInt<sdiv, "div_s">; 27defm DIV_U : BinaryInt<udiv, "div_u">; 28defm REM_S : BinaryInt<srem, "rem_s">; 29defm REM_U : BinaryInt<urem, "rem_u">; 30} // hasSideEffects = 1 31let isCommutable = 1 in { 32defm AND : BinaryInt<and, "and ">; 33defm OR : BinaryInt<or, "or ">; 34defm XOR : BinaryInt<xor, "xor ">; 35} // isCommutable = 1 36defm SHL : BinaryInt<shl, "shl ">; 37defm SHR_U : BinaryInt<srl, "shr_u">; 38defm SHR_S : BinaryInt<sra, "shr_s">; 39 40let isCommutable = 1 in { 41defm EQ : ComparisonInt<SETEQ, "eq ">; 42defm NE : ComparisonInt<SETNE, "ne ">; 43} // isCommutable = 1 44defm LT_S : ComparisonInt<SETLT, "lt_s">; 45defm LE_S : ComparisonInt<SETLE, "le_s">; 46defm LT_U : ComparisonInt<SETULT, "lt_u">; 47defm LE_U : ComparisonInt<SETULE, "le_u">; 48defm GT_S : ComparisonInt<SETGT, "gt_s">; 49defm GE_S : ComparisonInt<SETGE, "ge_s">; 50defm GT_U : ComparisonInt<SETUGT, "gt_u">; 51defm GE_U : ComparisonInt<SETUGE, "ge_u">; 52 53defm CLZ : UnaryInt<ctlz, "clz ">; 54defm CTZ : UnaryInt<cttz, "ctz ">; 55defm POPCNT : UnaryInt<ctpop, "popcnt">; 56 57} // Defs = [ARGUMENTS] 58 59// Expand the "don't care" operations to supported operations. 60def : Pat<(ctlz_zero_undef I32:$src), (CLZ_I32 I32:$src)>; 61def : Pat<(ctlz_zero_undef I64:$src), (CLZ_I64 I64:$src)>; 62def : Pat<(cttz_zero_undef I32:$src), (CTZ_I32 I32:$src)>; 63def : Pat<(cttz_zero_undef I64:$src), (CTZ_I64 I64:$src)>; 64 65let Defs = [ARGUMENTS] in { 66 67def SELECT_I32 : I<(outs I32:$dst), (ins I32:$cond, I32:$lhs, I32:$rhs), 68 [(set I32:$dst, (select I32:$cond, I32:$lhs, I32:$rhs))], 69 "i32.select\t$dst, $cond, $lhs, $rhs">; 70def SELECT_I64 : I<(outs I64:$dst), (ins I32:$cond, I64:$lhs, I64:$rhs), 71 [(set I64:$dst, (select I32:$cond, I64:$lhs, I64:$rhs))], 72 "i64.select\t$dst, $cond, $lhs, $rhs">; 73 74} // Defs = [ARGUMENTS] 75 76// ISD::SELECT requires its operand to conform to getBooleanContents, but 77// WebAssembly's select interprets any non-zero value as true, so we can fold 78// a setne with 0 into a select. 79def : Pat<(select (i32 (setne I32:$cond, 0)), I32:$lhs, I32:$rhs), 80 (SELECT_I32 I32:$cond, I32:$lhs, I32:$rhs)>; 81def : Pat<(select (i32 (setne I32:$cond, 0)), I64:$lhs, I64:$rhs), 82 (SELECT_I64 I32:$cond, I64:$lhs, I64:$rhs)>; 83 84// And again, this time with seteq instead of setne and the arms reversed. 85def : Pat<(select (i32 (seteq I32:$cond, 0)), I32:$lhs, I32:$rhs), 86 (SELECT_I32 I32:$cond, I32:$rhs, I32:$lhs)>; 87def : Pat<(select (i32 (seteq I32:$cond, 0)), I64:$lhs, I64:$rhs), 88 (SELECT_I64 I32:$cond, I64:$rhs, I64:$lhs)>; 89