[CIR][CodeGen] Handle the case of 'case' after label statement after 'case' #879
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ChuanqiXu9
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Hugobros3
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Oct 2, 2024
…'case' (llvm#879) Motivation example: ``` extern "C" void action1(); extern "C" void action2(); extern "C" void case_follow_label(int v) { switch (v) { case 1: label: case 2: action1(); break; default: action2(); goto label; } } ``` When we compile it, we will meet: ``` case Stmt::CaseStmtClass: case Stmt::DefaultStmtClass: assert(0 && "Should not get here, currently handled directly from SwitchStmt"); break; ``` in `buildStmt`. The cause is clear. We call `buildStmt` when we build the label stmt. To solve this, I think we should be able to build case stmt in buildStmt. But the new problem is, we need to pass the information like caseAttr and condType. So I tried to add such informations in CIRGenFunction as data member.
smeenai
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Oct 9, 2024
…'case' (llvm#879) Motivation example: ``` extern "C" void action1(); extern "C" void action2(); extern "C" void case_follow_label(int v) { switch (v) { case 1: label: case 2: action1(); break; default: action2(); goto label; } } ``` When we compile it, we will meet: ``` case Stmt::CaseStmtClass: case Stmt::DefaultStmtClass: assert(0 && "Should not get here, currently handled directly from SwitchStmt"); break; ``` in `buildStmt`. The cause is clear. We call `buildStmt` when we build the label stmt. To solve this, I think we should be able to build case stmt in buildStmt. But the new problem is, we need to pass the information like caseAttr and condType. So I tried to add such informations in CIRGenFunction as data member.
smeenai
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Oct 9, 2024
…'case' (llvm#879) Motivation example: ``` extern "C" void action1(); extern "C" void action2(); extern "C" void case_follow_label(int v) { switch (v) { case 1: label: case 2: action1(); break; default: action2(); goto label; } } ``` When we compile it, we will meet: ``` case Stmt::CaseStmtClass: case Stmt::DefaultStmtClass: assert(0 && "Should not get here, currently handled directly from SwitchStmt"); break; ``` in `buildStmt`. The cause is clear. We call `buildStmt` when we build the label stmt. To solve this, I think we should be able to build case stmt in buildStmt. But the new problem is, we need to pass the information like caseAttr and condType. So I tried to add such informations in CIRGenFunction as data member.
smeenai
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Oct 9, 2024
…'case' (llvm#879) Motivation example: ``` extern "C" void action1(); extern "C" void action2(); extern "C" void case_follow_label(int v) { switch (v) { case 1: label: case 2: action1(); break; default: action2(); goto label; } } ``` When we compile it, we will meet: ``` case Stmt::CaseStmtClass: case Stmt::DefaultStmtClass: assert(0 && "Should not get here, currently handled directly from SwitchStmt"); break; ``` in `buildStmt`. The cause is clear. We call `buildStmt` when we build the label stmt. To solve this, I think we should be able to build case stmt in buildStmt. But the new problem is, we need to pass the information like caseAttr and condType. So I tried to add such informations in CIRGenFunction as data member.
keryell
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Oct 19, 2024
…'case' (llvm#879) Motivation example: ``` extern "C" void action1(); extern "C" void action2(); extern "C" void case_follow_label(int v) { switch (v) { case 1: label: case 2: action1(); break; default: action2(); goto label; } } ``` When we compile it, we will meet: ``` case Stmt::CaseStmtClass: case Stmt::DefaultStmtClass: assert(0 && "Should not get here, currently handled directly from SwitchStmt"); break; ``` in `buildStmt`. The cause is clear. We call `buildStmt` when we build the label stmt. To solve this, I think we should be able to build case stmt in buildStmt. But the new problem is, we need to pass the information like caseAttr and condType. So I tried to add such informations in CIRGenFunction as data member.
lanza
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that referenced
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Nov 5, 2024
…'case' (#879) Motivation example: ``` extern "C" void action1(); extern "C" void action2(); extern "C" void case_follow_label(int v) { switch (v) { case 1: label: case 2: action1(); break; default: action2(); goto label; } } ``` When we compile it, we will meet: ``` case Stmt::CaseStmtClass: case Stmt::DefaultStmtClass: assert(0 && "Should not get here, currently handled directly from SwitchStmt"); break; ``` in `buildStmt`. The cause is clear. We call `buildStmt` when we build the label stmt. To solve this, I think we should be able to build case stmt in buildStmt. But the new problem is, we need to pass the information like caseAttr and condType. So I tried to add such informations in CIRGenFunction as data member.
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Motivation example:
When we compile it, we will meet:
in
buildStmt. The cause is clear. We callbuildStmtwhen we build the label stmt.To solve this, I think we should be able to build case stmt in buildStmt. But the new problem is, we need to pass the information like caseAttr and condType. So I tried to add such informations in CIRGenFunction as data member.