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introduce a new recoverable error handling API to LLVMContext

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and use it in one place in inline asm handling stuff.  Before
we'd generate this for an invalid modifier letter:

$ clang asm.c -c -o t.o
fatal error: error in backend: Invalid operand found in inline asm: 'abc incl    ${0:Z}'
INLINEASM <es:abc incl    ${0:Z}>, 10, %EAX<def>, 2147483657, %EAX, 14, %EFLAGS<earlyclobber,def,dead>, <!-1>


Now we generate this:

$ clang asm.c -c -o t.o
error: invalid operand in inline asm: 'incl    ${0:Z}'
asm.c:3:12: note: generated from here
  __asm__ ("incl    %Z0" : "+r" (X));
           ^
1 error generated.

This is much better but still admittedly not great ("why" is the operand 
invalid??), codegen should try harder with its diagnostics :)



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100723 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner
2010-04-07 23:40:44 +00:00
parent a5ced590c9
commit 38686bdffd
3 changed files with 50 additions and 3 deletions
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5
lib/CodeGen/AsmPrinter/AsmPrinterInlineAsm.cpp
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@@ -295,9 +295,8 @@ void AsmPrinter::EmitInlineAsm(const MachineInstr *MI) const {
if (Error) {
std::string msg;
raw_string_ostream Msg(msg);
Msg << "Invalid operand found in inline asm: '" << AsmStr << "'\n";
MI->print(Msg);
report_fatal_error(Msg.str());
Msg << "invalid operand in inline asm: '" << AsmStr << "'";
MMI->getModule()->getContext().emitError(LocCookie, Msg.str());
}
}
break;