[llvm-branch-commits] [llvm-branch] r325089 - Merging r324645:

[Reid Kleckner via llvm-branch-commits]

Author: rnk
Date: Tue Feb 13 16:33:00 2018
New Revision: 325089

URL: http://llvm.org/viewvc/llvm-project?rev=325089&view=rev
Log:
Merging r324645:
------------------------------------------------------------------------
r324645 | dwmw2 | 2018-02-08 12:06:05 -0800 (Thu, 08 Feb 2018) | 5 lines

[X86] Support 'V' register operand modifier

This allows the register name to be printed without the leading '%'.
This can be used for emitting calls to the retpoline thunks from inline
asm.
------------------------------------------------------------------------

Added:
    llvm/branches/release_50/test/CodeGen/X86/inline-asm-modifier-V.ll
      - copied unchanged from r324645, llvm/trunk/test/CodeGen/X86/inline-asm-modifier-V.ll
Modified:
    llvm/branches/release_50/   (props changed)
    llvm/branches/release_50/lib/Target/X86/X86AsmPrinter.cpp

Propchange: llvm/branches/release_50/
------------------------------------------------------------------------------
--- svn:mergeinfo (original)
+++ svn:mergeinfo Tue Feb 13 16:33:00 2018
@@ -1,2 +1,2 @@
-/llvm/trunk:313366,323155,323915,324449
+/llvm/trunk:313366,323155,323915,324449,324645
 /llvm/trunk:155241,308483-308484,308503,308808,308813,308847,308891,308906,308950,308963,308978,308986,309044,309071,309113,309120,309122,309140,309227,309302,309321,309323,309325,309330,309343,309353,309355,309422,309481,309483,309495,309555,309561,309594,309614,309651,309744,309758,309849,309928,309930,309945,310066,310071,310190,310240-310242,310250,310253,310262,310267,310481,310492,310498,310510,310534,310552,310604,310712,310779,310784,310796,310842,310906,310926,310939,310979,310988,310990-310991,311061,311068,311071,311087,311229,311258,311263,311387,311429,311554,311565,311572,311623,311835,312022,312285,313334:312337

Modified: llvm/branches/release_50/lib/Target/X86/X86AsmPrinter.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/branches/release_50/lib/Target/X86/X86AsmPrinter.cpp?rev=325089&r1=325088&r2=325089&view=diff
==============================================================================
--- llvm/branches/release_50/lib/Target/X86/X86AsmPrinter.cpp (original)
+++ llvm/branches/release_50/lib/Target/X86/X86AsmPrinter.cpp Tue Feb 13 16:33:00 2018
@@ -344,6 +344,8 @@ static void printIntelMemReference(X86As
 static bool printAsmMRegister(X86AsmPrinter &P, const MachineOperand &MO,
                               char Mode, raw_ostream &O) {
   unsigned Reg = MO.getReg();
+  bool EmitPercent = true;
+
   switch (Mode) {
   default: return true;  // Unknown mode.
   case 'b': // Print QImode register
@@ -358,6 +360,9 @@ static bool printAsmMRegister(X86AsmPrin
   case 'k': // Print SImode register
     Reg = getX86SubSuperRegister(Reg, 32);
     break;
+  case 'V':
+    EmitPercent = false;
+    LLVM_FALLTHROUGH;
   case 'q':
     // Print 64-bit register names if 64-bit integer registers are available.
     // Otherwise, print 32-bit register names.
@@ -365,7 +370,10 @@ static bool printAsmMRegister(X86AsmPrin
     break;
   }
 
-  O << '%' << X86ATTInstPrinter::getRegisterName(Reg);
+  if (EmitPercent)
+    O << '%';
+
+  O << X86ATTInstPrinter::getRegisterName(Reg);
   return false;
 }
 
@@ -438,6 +446,7 @@ bool X86AsmPrinter::PrintAsmOperand(cons
     case 'w': // Print HImode register
     case 'k': // Print SImode register
     case 'q': // Print DImode register
+    case 'V': // Print native register without '%'
       if (MO.isReg())
         return printAsmMRegister(*this, MO, ExtraCode[0], O);
       printOperand(*this, MI, OpNo, O);