[llvm] r259798 - Enable the %s modifier in inline asm template string

[Nemanja Ivanovic via llvm-commits]

Author: nemanjai
Date: Thu Feb  4 10:18:08 2016
New Revision: 259798

URL: http://llvm.org/viewvc/llvm-project?rev=259798&view=rev
Log:
Enable the %s modifier in inline asm template string

This patch corresponds to review:
http://reviews.llvm.org/D16847

There are some files in glibc that use the output operand modifier even though
it was deprecated in GCC. This patch just adds support for it to prevent issues
with such files.

Modified:
    llvm/trunk/lib/CodeGen/AsmPrinter/AsmPrinterInlineAsm.cpp

Modified: llvm/trunk/lib/CodeGen/AsmPrinter/AsmPrinterInlineAsm.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/CodeGen/AsmPrinter/AsmPrinterInlineAsm.cpp?rev=259798&r1=259797&r2=259798&view=diff
==============================================================================
--- llvm/trunk/lib/CodeGen/AsmPrinter/AsmPrinterInlineAsm.cpp (original)
+++ llvm/trunk/lib/CodeGen/AsmPrinter/AsmPrinterInlineAsm.cpp Thu Feb  4 10:18:08 2016
@@ -555,6 +555,11 @@ bool AsmPrinter::PrintAsmOperand(const M
         return true;
       O << -MO.getImm();
       return false;
+    case 's':  // The GCC deprecated s modifier
+      if (MO.getType() != MachineOperand::MO_Immediate)
+        return true;
+      O << ((32 - MO.getImm()) & 31);
+      return false;
     }
   }
   return true;