Remove exception handling usage from tblgen.
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
diff --git a/utils/TableGen/AsmWriterInst.cpp b/utils/TableGen/AsmWriterInst.cpp
index 350a2cc..fe1f756 100644
--- a/utils/TableGen/AsmWriterInst.cpp
+++ b/utils/TableGen/AsmWriterInst.cpp
@@ -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 @@
!= 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 @@
// 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 @@
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.