OS#17035883 : Generate object check for Symbol compare lowering

Meghana Gupta · Meghana Gupta · commit 3c2da6d9b2c8 · 2018-05-16T12:43:53.000-07:00
Found by OSS Fuzz
diff --git a/lib/Backend/Lower.cpp b/lib/Backend/Lower.cpp
@@ -23128,8 +23128,8 @@ bool Lowerer::GenerateFastBooleanAndObjectEqLikely(IR::Instr * instr, IR::Opnd *
     }
     else if (src1->GetValueType().IsLikelySymbol() && src2->GetValueType().IsLikelySymbol())
     {
-        this->GenerateSymbolTest(src1->AsRegOpnd(), instr, labelHelper, nullptr, false);
-        this->GenerateSymbolTest(src2->AsRegOpnd(), instr, labelHelper, nullptr, false);
+        this->GenerateSymbolTest(src1->AsRegOpnd(), instr, labelHelper, nullptr, true);
+        this->GenerateSymbolTest(src2->AsRegOpnd(), instr, labelHelper, nullptr, true);
     }
     else
     {

Original file line number	Diff line number	Diff line change
`@@ -23128,8 +23128,8 @@ bool Lowerer::GenerateFastBooleanAndObjectEqLikely(IR::Instr * instr, IR::Opnd *`
`23128`	`23128`	`}`
`23129`	`23129`	`else if (src1->GetValueType().IsLikelySymbol() && src2->GetValueType().IsLikelySymbol())`
`23130`	`23130`	`{`
`23131`		`- this->GenerateSymbolTest(src1->AsRegOpnd(), instr, labelHelper, nullptr, false);`
`23132`		`- this->GenerateSymbolTest(src2->AsRegOpnd(), instr, labelHelper, nullptr, false);`
	`23131`	`+ this->GenerateSymbolTest(src1->AsRegOpnd(), instr, labelHelper, nullptr, true);`
	`23132`	`+ this->GenerateSymbolTest(src2->AsRegOpnd(), instr, labelHelper, nullptr, true);`
`23133`	`23133`	`}`
`23134`	`23134`	`else`
`23135`	`23135`	`{`