Compile C strings to:

l1__2E_str_1:                           ; '.str_1'
        .asciz  "foo"

not:

        .align  0
l1__2E_str_1:                           ; '.str_1'
        .asciz  "foo"

llvm-svn: 24273

llvm/lib/CodeGen/AsmPrinter.cpp

@@ -36,6 +36,7 @@ void AsmPrinter::setupMachineFunction(MachineFunction &MF) {
 
 // emitAlignment - Emit an alignment directive to the specified power of two.
 void AsmPrinter::emitAlignment(unsigned NumBits) const {
+  if (NumBits == 0) return;   // No need to emit alignment.
   if (AlignmentIsInBytes) NumBits = 1 << NumBits;
   O << AlignDirective << NumBits << "\n";
 }