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Remove exception handling usage from tblgen.

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Most places can use PrintFatalError as the unwinding mechanism was not
used for anything other than printing the error. The single exception
was CodeGenDAGPatterns.cpp, where intermediate errors during type
resolution were ignored to simplify incremental platform development.
This use is replaced by an error flag in TreePattern and bailout earlier
in various places if it is set. 


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166712 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Joerg Sonnenberger
2012-10-25 20:33:17 +00:00
parent e5a7a68dfa
commit 61131ab15f
32 changed files with 488 additions and 452 deletions
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utils/TableGen/AsmWriterInst.cpp
+12 -11
View File
@@ -14,6 +14,7 @@
#include "AsmWriterInst.h"
#include "CodeGenTarget.h"
#include "llvm/ADT/StringExtras.h"
#include "llvm/TableGen/Error.h"
#include "llvm/TableGen/Record.h"
using namespace llvm;
@@ -123,8 +124,8 @@ AsmWriterInst::AsmWriterInst(const CodeGenInstruction &CGI,
!= std::string::npos) {
AddLiteralString(std::string(1, AsmString[DollarPos+1]));
} else {
throw "Non-supported escaped character found in instruction '" +
CGI.TheDef->getName() + "'!";
PrintFatalError("Non-supported escaped character found in instruction '" +
CGI.TheDef->getName() + "'!");
}
LastEmitted = DollarPos+2;
continue;
@@ -162,15 +163,15 @@ AsmWriterInst::AsmWriterInst(const CodeGenInstruction &CGI,
// brace.
if (hasCurlyBraces) {
if (VarEnd >= AsmString.size())
throw "Reached end of string before terminating curly brace in '"
+ CGI.TheDef->getName() + "'";
PrintFatalError("Reached end of string before terminating curly brace in '"
+ CGI.TheDef->getName() + "'");
// Look for a modifier string.
if (AsmString[VarEnd] == ':') {
++VarEnd;
if (VarEnd >= AsmString.size())
throw "Reached end of string before terminating curly brace in '"
+ CGI.TheDef->getName() + "'";
PrintFatalError("Reached end of string before terminating curly brace in '"
+ CGI.TheDef->getName() + "'");
unsigned ModifierStart = VarEnd;
while (VarEnd < AsmString.size() && isIdentChar(AsmString[VarEnd]))
@@ -178,17 +179,17 @@ AsmWriterInst::AsmWriterInst(const CodeGenInstruction &CGI,
Modifier = std::string(AsmString.begin()+ModifierStart,
AsmString.begin()+VarEnd);
if (Modifier.empty())
throw "Bad operand modifier name in '"+ CGI.TheDef->getName() + "'";
PrintFatalError("Bad operand modifier name in '"+ CGI.TheDef->getName() + "'");
}
if (AsmString[VarEnd] != '}')
throw "Variable name beginning with '{' did not end with '}' in '"
+ CGI.TheDef->getName() + "'";
PrintFatalError("Variable name beginning with '{' did not end with '}' in '"
+ CGI.TheDef->getName() + "'");
++VarEnd;
}
if (VarName.empty() && Modifier.empty())
throw "Stray '$' in '" + CGI.TheDef->getName() +
"' asm string, maybe you want $$?";
PrintFatalError("Stray '$' in '" + CGI.TheDef->getName() +
"' asm string, maybe you want $$?");
if (VarName.empty()) {
// Just a modifier, pass this into PrintSpecial.