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Diffstat (limited to 'llvm/lib/Target/WebAssembly/WebAssemblyInstrInteger.td')
| -rw-r--r-- | llvm/lib/Target/WebAssembly/WebAssemblyInstrInteger.td | 123 |
1 files changed, 123 insertions, 0 deletions
diff --git a/llvm/lib/Target/WebAssembly/WebAssemblyInstrInteger.td b/llvm/lib/Target/WebAssembly/WebAssemblyInstrInteger.td new file mode 100644 index 000000000000..18250cf8ef85 --- /dev/null +++ b/llvm/lib/Target/WebAssembly/WebAssemblyInstrInteger.td @@ -0,0 +1,123 @@ +// WebAssemblyInstrInteger.td-WebAssembly Integer codegen -------*- tablegen -*- +// +// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. +// See https://llvm.org/LICENSE.txt for license information. +// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception +// +//===----------------------------------------------------------------------===// +/// +/// \file +/// WebAssembly Integer operand code-gen constructs. +/// +//===----------------------------------------------------------------------===// + +multiclass UnaryInt<SDNode node, string name, bits<32> i32Inst, + bits<32> i64Inst> { + defm _I32 : I<(outs I32:$dst), (ins I32:$src), (outs), (ins), + [(set I32:$dst, (node I32:$src))], + !strconcat("i32.", !strconcat(name, "\t$dst, $src")), + !strconcat("i32.", name), i32Inst>; + defm _I64 : I<(outs I64:$dst), (ins I64:$src), (outs), (ins), + [(set I64:$dst, (node I64:$src))], + !strconcat("i64.", !strconcat(name, "\t$dst, $src")), + !strconcat("i64.", name), i64Inst>; +} +multiclass BinaryInt<SDNode node, string name, bits<32> i32Inst, + bits<32> i64Inst> { + defm _I32 : I<(outs I32:$dst), (ins I32:$lhs, I32:$rhs), (outs), (ins), + [(set I32:$dst, (node I32:$lhs, I32:$rhs))], + !strconcat("i32.", !strconcat(name, "\t$dst, $lhs, $rhs")), + !strconcat("i32.", name), i32Inst>; + defm _I64 : I<(outs I64:$dst), (ins I64:$lhs, I64:$rhs), (outs), (ins), + [(set I64:$dst, (node I64:$lhs, I64:$rhs))], + !strconcat("i64.", !strconcat(name, "\t$dst, $lhs, $rhs")), + !strconcat("i64.", name), i64Inst>; +} +multiclass ComparisonInt<CondCode cond, string name, bits<32> i32Inst, bits<32> i64Inst> { + defm _I32 : I<(outs I32:$dst), (ins I32:$lhs, I32:$rhs), (outs), (ins), + [(set I32:$dst, (setcc I32:$lhs, I32:$rhs, cond))], + !strconcat("i32.", !strconcat(name, "\t$dst, $lhs, $rhs")), + !strconcat("i32.", name), i32Inst>; + defm _I64 : I<(outs I32:$dst), (ins I64:$lhs, I64:$rhs), (outs), (ins), + [(set I32:$dst, (setcc I64:$lhs, I64:$rhs, cond))], + !strconcat("i64.", !strconcat(name, "\t$dst, $lhs, $rhs")), + !strconcat("i64.", name), i64Inst>; +} + +// The spaces after the names are for aesthetic purposes only, to make +// operands line up vertically after tab expansion. +let isCommutable = 1 in +defm ADD : BinaryInt<add, "add ", 0x6a, 0x7c>; +defm SUB : BinaryInt<sub, "sub ", 0x6b, 0x7d>; +let isCommutable = 1 in +defm MUL : BinaryInt<mul, "mul ", 0x6c, 0x7e>; +// Divide and remainder trap on a zero denominator. +let hasSideEffects = 1 in { +defm DIV_S : BinaryInt<sdiv, "div_s", 0x6d, 0x7f>; +defm DIV_U : BinaryInt<udiv, "div_u", 0x6e, 0x80>; +defm REM_S : BinaryInt<srem, "rem_s", 0x6f, 0x81>; +defm REM_U : BinaryInt<urem, "rem_u", 0x70, 0x82>; +} // hasSideEffects = 1 +let isCommutable = 1 in { +defm AND : BinaryInt<and, "and ", 0x71, 0x83>; +defm OR : BinaryInt<or, "or ", 0x72, 0x84>; +defm XOR : BinaryInt<xor, "xor ", 0x73, 0x85>; +} // isCommutable = 1 +defm SHL : BinaryInt<shl, "shl ", 0x74, 0x86>; +defm SHR_S : BinaryInt<sra, "shr_s", 0x75, 0x87>; +defm SHR_U : BinaryInt<srl, "shr_u", 0x76, 0x88>; +defm ROTL : BinaryInt<rotl, "rotl", 0x77, 0x89>; +defm ROTR : BinaryInt<rotr, "rotr", 0x78, 0x8a>; + +let isCommutable = 1 in { +defm EQ : ComparisonInt<SETEQ, "eq ", 0x46, 0x51>; +defm NE : ComparisonInt<SETNE, "ne ", 0x47, 0x52>; +} // isCommutable = 1 +defm LT_S : ComparisonInt<SETLT, "lt_s", 0x48, 0x53>; +defm LT_U : ComparisonInt<SETULT, "lt_u", 0x49, 0x54>; +defm GT_S : ComparisonInt<SETGT, "gt_s", 0x4a, 0x55>; +defm GT_U : ComparisonInt<SETUGT, "gt_u", 0x4b, 0x56>; +defm LE_S : ComparisonInt<SETLE, "le_s", 0x4c, 0x57>; +defm LE_U : ComparisonInt<SETULE, "le_u", 0x4d, 0x58>; +defm GE_S : ComparisonInt<SETGE, "ge_s", 0x4e, 0x59>; +defm GE_U : ComparisonInt<SETUGE, "ge_u", 0x4f, 0x5a>; + +defm CLZ : UnaryInt<ctlz, "clz ", 0x67, 0x79>; +defm CTZ : UnaryInt<cttz, "ctz ", 0x68, 0x7a>; +defm POPCNT : UnaryInt<ctpop, "popcnt", 0x69, 0x7b>; + +defm EQZ_I32 : I<(outs I32:$dst), (ins I32:$src), (outs), (ins), + [(set I32:$dst, (setcc I32:$src, 0, SETEQ))], + "i32.eqz \t$dst, $src", "i32.eqz", 0x45>; +defm EQZ_I64 : I<(outs I32:$dst), (ins I64:$src), (outs), (ins), + [(set I32:$dst, (setcc I64:$src, 0, SETEQ))], + "i64.eqz \t$dst, $src", "i64.eqz", 0x50>; + +// Optimize away an explicit mask on a rotate count. +def : Pat<(rotl I32:$lhs, (and I32:$rhs, 31)), (ROTL_I32 I32:$lhs, I32:$rhs)>; +def : Pat<(rotr I32:$lhs, (and I32:$rhs, 31)), (ROTR_I32 I32:$lhs, I32:$rhs)>; +def : Pat<(rotl I64:$lhs, (and I64:$rhs, 63)), (ROTL_I64 I64:$lhs, I64:$rhs)>; +def : Pat<(rotr I64:$lhs, (and I64:$rhs, 63)), (ROTR_I64 I64:$lhs, I64:$rhs)>; + +defm SELECT_I32 : I<(outs I32:$dst), (ins I32:$lhs, I32:$rhs, I32:$cond), + (outs), (ins), + [(set I32:$dst, (select I32:$cond, I32:$lhs, I32:$rhs))], + "i32.select\t$dst, $lhs, $rhs, $cond", "i32.select", 0x1b>; +defm SELECT_I64 : I<(outs I64:$dst), (ins I64:$lhs, I64:$rhs, I32:$cond), + (outs), (ins), + [(set I64:$dst, (select I32:$cond, I64:$lhs, I64:$rhs))], + "i64.select\t$dst, $lhs, $rhs, $cond", "i64.select", 0x1b>; + +// ISD::SELECT requires its operand to conform to getBooleanContents, but +// WebAssembly's select interprets any non-zero value as true, so we can fold +// a setne with 0 into a select. +def : Pat<(select (i32 (setne I32:$cond, 0)), I32:$lhs, I32:$rhs), + (SELECT_I32 I32:$lhs, I32:$rhs, I32:$cond)>; +def : Pat<(select (i32 (setne I32:$cond, 0)), I64:$lhs, I64:$rhs), + (SELECT_I64 I64:$lhs, I64:$rhs, I32:$cond)>; + +// And again, this time with seteq instead of setne and the arms reversed. +def : Pat<(select (i32 (seteq I32:$cond, 0)), I32:$lhs, I32:$rhs), + (SELECT_I32 I32:$rhs, I32:$lhs, I32:$cond)>; +def : Pat<(select (i32 (seteq I32:$cond, 0)), I64:$lhs, I64:$rhs), + (SELECT_I64 I64:$rhs, I64:$lhs, I32:$cond)>; |