Add LLVM support for PPC cryptography builtins

[oota-llvm.git] / lib / Target / PowerPC / InstPrinter / PPCInstPrinter.cpp

diff --git a/lib/Target/PowerPC/InstPrinter/PPCInstPrinter.cpp b/lib/Target/PowerPC/InstPrinter/PPCInstPrinter.cpp
index 7279b091b34ceea70f2e0d66ca95e75bf93cf766..5d1aa1ad54088484e2ae1f9a1bfd2fc957540998 100644 (file)
--- a/lib/Target/PowerPC/InstPrinter/PPCInstPrinter.cpp
+++ b/lib/Target/PowerPC/InstPrinter/PPCInstPrinter.cpp
@@ -17,6 +17,7 @@
 #include "llvm/MC/MCExpr.h"
 #include "llvm/MC/MCInst.h"
 #include "llvm/MC/MCInstrInfo.h"
+#include "llvm/MC/MCSymbol.h"
 #include "llvm/Support/CommandLine.h"
 #include "llvm/Support/raw_ostream.h"
 #include "llvm/Target/TargetOpcodes.h"
@@ -33,7 +34,20 @@ FullRegNames("ppc-asm-full-reg-names", cl::Hidden, cl::init(false),
 #include "PPCGenAsmWriter.inc"
 
 void PPCInstPrinter::printRegName(raw_ostream &OS, unsigned RegNo) const {
-  OS << getRegisterName(RegNo);
+  const char *RegName = getRegisterName(RegNo);
+  if (RegName[0] == 'q' /* QPX */) {
+    // The system toolchain on the BG/Q does not understand QPX register names
+    // in .cfi_* directives, so print the name of the floating-point
+    // subregister instead.
+    std::string RN(RegName);
+
+    RN[0] = 'f';
+    OS << RN;
+
+    return;
+  }
+
+  OS << RegName;
 }
 
 void PPCInstPrinter::printInst(const MCInst *MI, raw_ostream &O,
@@ -200,6 +214,13 @@ void PPCInstPrinter::printPredicateOperand(const MCInst *MI, unsigned OpNo,
   printOperand(MI, OpNo+1, O);
 }
 
+void PPCInstPrinter::printU1ImmOperand(const MCInst *MI, unsigned OpNo,
+                                       raw_ostream &O) {
+  unsigned int Value = MI->getOperand(OpNo).getImm();
+  assert(Value <= 1 && "Invalid u1imm argument!");
+  O << (unsigned int)Value;
+}
+
 void PPCInstPrinter::printU2ImmOperand(const MCInst *MI, unsigned OpNo,
                                        raw_ostream &O) {
   unsigned int Value = MI->getOperand(OpNo).getImm();
@@ -207,6 +228,13 @@ void PPCInstPrinter::printU2ImmOperand(const MCInst *MI, unsigned OpNo,
   O << (unsigned int)Value;
 }
 
+void PPCInstPrinter::printU4ImmOperand(const MCInst *MI, unsigned OpNo,
+                                       raw_ostream &O) {
+  unsigned int Value = MI->getOperand(OpNo).getImm();
+  assert(Value <= 15 && "Invalid u4imm argument!");
+  O << (unsigned int)Value;
+}
+
 void PPCInstPrinter::printS5ImmOperand(const MCInst *MI, unsigned OpNo,
                                        raw_ostream &O) {
   int Value = MI->getOperand(OpNo).getImm();
@@ -228,6 +256,13 @@ void PPCInstPrinter::printU6ImmOperand(const MCInst *MI, unsigned OpNo,
   O << (unsigned int)Value;
 }
 
+void PPCInstPrinter::printU12ImmOperand(const MCInst *MI, unsigned OpNo,
+                                        raw_ostream &O) {
+  unsigned short Value = MI->getOperand(OpNo).getImm();
+  assert(Value <= 4095 && "Invalid u12imm argument!");
+  O << (unsigned short)Value;
+}
+
 void PPCInstPrinter::printS16ImmOperand(const MCInst *MI, unsigned OpNo,
                                         raw_ostream &O) {
   if (MI->getOperand(OpNo).isImm())
@@ -260,7 +295,7 @@ void PPCInstPrinter::printAbsBranchOperand(const MCInst *MI, unsigned OpNo,
   if (!MI->getOperand(OpNo).isImm())
     return printOperand(MI, OpNo, O);
 
-  O << (int)MI->getOperand(OpNo).getImm()*4;
+  O << SignExtend32<32>((unsigned)MI->getOperand(OpNo).getImm() << 2);
 }
 
 
@@ -308,10 +343,16 @@ void PPCInstPrinter::printMemRegReg(const MCInst *MI, unsigned OpNo,
 
 void PPCInstPrinter::printTLSCall(const MCInst *MI, unsigned OpNo,
                                   raw_ostream &O) {
-  printBranchOperand(MI, OpNo, O);
+  // On PPC64, VariantKind is VK_None, but on PPC32, it's VK_PLT, and it must
+  // come at the _end_ of the expression.
+  const MCOperand &Op = MI->getOperand(OpNo);
+  const MCSymbolRefExpr &refExp = cast<MCSymbolRefExpr>(*Op.getExpr());
+  O << refExp.getSymbol().getName();
   O << '(';
   printOperand(MI, OpNo+1, O);
   O << ')';
+  if (refExp.getKind() != MCSymbolRefExpr::VK_None)
+    O << '@' << MCSymbolRefExpr::getVariantKindName(refExp.getKind());
 }
 
 
@@ -324,6 +365,7 @@ static const char *stripRegisterPrefix(const char *RegName) {
   switch (RegName[0]) {
   case 'r':
   case 'f':
+  case 'q': // for QPX
   case 'v':
     if (RegName[1] == 's')
       return RegName + 2;