[PowerPC] Add support for the extended dcbf form and mnemonics

dcbf has an optional hint-like field, add support for the extended form and the
associated mnemonics (dcbfl and dcbflp).

Partially fixes PR24796.

llvm-svn: 280559

1 files changed, 19 insertions, 0 deletions

diff --git a/llvm/lib/Target/PowerPC/InstPrinter/PPCInstPrinter.cpp b/llvm/lib/Target/PowerPC/InstPrinter/PPCInstPrinter.cpp
index d9d9b4f180f..d1c4b59e559 100644
--- a/llvm/lib/Target/PowerPC/InstPrinter/PPCInstPrinter.cpp
+++ b/llvm/lib/Target/PowerPC/InstPrinter/PPCInstPrinter.cpp
@@ -135,6 +135,25 @@ void PPCInstPrinter::printInst(const MCInst *MI, raw_ostream &O,
     printAnnotation(O, Annot);
     return;
   }
+
+  if (MI->getOpcode() == PPC::DCBF) {
+    unsigned char L = MI->getOperand(0).getImm();
+    if (!L || L == 1 || L == 3) {
+      O << "\tdcbf";
+      if (L == 1 || L == 3)
+        O << "l";
+      if (L == 3)
+        O << "p";
+      O << " ";
+
+      printOperand(MI, 1, O);
+      O << ", ";
+      printOperand(MI, 2, O);
+
+      printAnnotation(O, Annot);
+      return;
+    }
+  }
   
   if (!printAliasInstr(MI, O))
     printInstruction(MI, O);