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Emit error unsupported when asm string conversion fails instead of 

assert.

llvm-svn: 57721
This commit is contained in:
Daniel Dunbar 2008-10-17 20:58:01 +00:00
parent 94169f1021
commit 1e75408d89
1 changed files with 13 additions and 3 deletions
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16
clang/lib/CodeGen/CGStmt.cpp
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@ -624,7 +624,9 @@ void CodeGenFunction::EmitSwitchStmt(const SwitchStmt &S) {
} }
static std::string ConvertAsmString(const char *Start, unsigned NumOperands, static std::string ConvertAsmString(const char *Start, unsigned NumOperands,
bool IsSimple) { bool IsSimple, bool &Failed) {
Failed = false;
static unsigned AsmCounter = 0; static unsigned AsmCounter = 0;
AsmCounter++; AsmCounter++;
std::string Result; std::string Result;
@ -696,7 +698,8 @@ static std::string ConvertAsmString(const char *Start, unsigned NumOperands,
Result += "${" + llvm::utostr(n) + ':' + EscapedChar + '}'; Result += "${" + llvm::utostr(n) + ':' + EscapedChar + '}';
Start = End - 1; Start = End - 1;
} else { } else {
assert(0 && "Unhandled asm escaped character!"); Failed = true;
return "";
} }
} }
Start++; Start++;
@ -731,10 +734,17 @@ static std::string SimplifyConstraint(const char* Constraint,
} }
void CodeGenFunction::EmitAsmStmt(const AsmStmt &S) { void CodeGenFunction::EmitAsmStmt(const AsmStmt &S) {
bool Failed;
std::string AsmString = std::string AsmString =
ConvertAsmString(std::string(S.getAsmString()->getStrData(), ConvertAsmString(std::string(S.getAsmString()->getStrData(),
S.getAsmString()->getByteLength()).c_str(), S.getAsmString()->getByteLength()).c_str(),
S.getNumOutputs() + S.getNumInputs(), S.isSimple()); S.getNumOutputs() + S.getNumInputs(), S.isSimple(),
Failed);
if (Failed) {
ErrorUnsupported(&S, "asm string");
return;
}
std::string Constraints; std::string Constraints;