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[Bug] Fixed RW info of string instructions, fixed lodsx() helper intructions in emitter

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kobalicek
2020-07-10 23:21:36 +02:00
parent 509866ef12
commit 8474400e82
6 changed files with 294 additions and 234 deletions
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35
tools/tablegen-x86.js
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@@ -1847,7 +1847,6 @@ class InstRWInfoTable extends core.Task {
this.rmInfoTable = new IndexedArray();
this.opInfoTable = new IndexedArray();
const _ = null;
this.rwCategoryByName = {
"imul" : "Imul",
"mov" : "Mov",
@@ -1861,6 +1860,8 @@ class InstRWInfoTable extends core.Task {
"vpmaskmovd": "Vmaskmov",
"vpmaskmovq": "Vmaskmov"
};
const _ = null;
this.rwCategoryByData = {
Vmov1_8: [
[{access: "W", flags: {}, fixed: -1, index: 0, width: 8}, {access: "R", flags: {}, fixed: -1, index: 0, width: 64},_,_,_,_],
@@ -1928,8 +1929,8 @@ class InstRWInfoTable extends core.Task {
const o2Insts = dbInsts.filter((inst) => { return inst.operands.length === 2; });
const oxInsts = dbInsts.filter((inst) => { return inst.operands.length !== 2; });
const rwInfoArray = [this.rwInfo(o2Insts), this.rwInfo(oxInsts)];
const rmInfoArray = [this.rmInfo(o2Insts), this.rmInfo(oxInsts)];
const rwInfoArray = [this.rwInfo(inst, o2Insts), this.rwInfo(inst, oxInsts)];
const rmInfoArray = [this.rmInfo(inst, o2Insts), this.rmInfo(inst, oxInsts)];
for (var i = 0; i < 2; i++) {
const rwInfo = rwInfoArray[i];
@@ -2043,7 +2044,9 @@ class InstRWInfoTable extends core.Task {
// Read/Write Info
// ---------------
rwInfo(dbInsts) {
rwInfo(asmInst, dbInsts) {
const self = this;
function nullOps() {
return [null, null, null, null, null, null];
}
@@ -2089,6 +2092,9 @@ class InstRWInfoTable extends core.Task {
if (op.zext)
d.flags.ZExt = true;
for (var k in self.rwOpFlagsForInstruction(asmInst.name, j))
d.flags[k] = true;
if ((step === -1 || step === j) || op.rwxIndex !== 0 || op.rwxWidth !== opSize) {
d.index = op.rwxIndex;
d.width = op.rwxWidth;
@@ -2184,10 +2190,29 @@ class InstRWInfoTable extends core.Task {
return null;
}
rwOpFlagsForInstruction(instName, opIndex) {
const toMap = MapUtils.arrayToMap;
// TODO: We should be able to get this information from asmdb.
switch (instName + "@" + opIndex) {
case "cmps@0": return toMap(['MemBaseRW', 'MemBasePostModify']);
case "cmps@1": return toMap(['MemBaseRW', 'MemBasePostModify']);
case "movs@0": return toMap(['MemBaseRW', 'MemBasePostModify']);
case "movs@1": return toMap(['MemBaseRW', 'MemBasePostModify']);
case "lods@1": return toMap(['MemBaseRW', 'MemBasePostModify']);
case "stos@0": return toMap(['MemBaseRW', 'MemBasePostModify']);
case "scas@1": return toMap(['MemBaseRW', 'MemBasePostModify']);
case "bndstx@0": return toMap(['MemBaseWrite', 'MemIndexWrite']);
default:
return {};
}
}
// Reg/Mem Info
// ------------
rmInfo(dbInsts) {
rmInfo(asmInst, dbInsts) {
const info = {
category: "None",
rmIndexes: this.rmReplaceableIndexes(dbInsts),