start using PPC predicates more consistently.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31833 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 39 insertions, 0 deletions

diff --git a/lib/Target/PowerPC/PPCPredicates.h b/lib/Target/PowerPC/PPCPredicates.h
new file mode 100644
index 0000000000..ba1bb744a6
--- /dev/null
+++ b/lib/Target/PowerPC/PPCPredicates.h
@@ -0,0 +1,39 @@
+//===-- PPCPredicates.h - PPC Branch Predicate Information ------*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file was developed by Chris Lattner and is distributed under
+// the University of Illinois Open Source License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// This file describes the PowerPC branch predicates.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef LLVM_TARGET_POWERPC_PPCPREDICATES_H
+#define LLVM_TARGET_POWERPC_PPCPREDICATES_H
+
+#include "PPC.h"
+
+namespace llvm {
+namespace PPC {
+  /// Predicate - These are "(BI << 5) | BO"  for various predicates.
+  enum Predicate {
+    PRED_ALWAYS = (0 << 5) | 20,
+    PRED_LT     = (0 << 5) | 12,
+    PRED_LE     = (1 << 5) |  4,
+    PRED_EQ     = (2 << 5) | 12,
+    PRED_GE     = (0 << 5) |  4,
+    PRED_GT     = (1 << 5) | 12,
+    PRED_NE     = (2 << 5) |  4,
+    PRED_UN     = (3 << 5) | 12,
+    PRED_NU     = (3 << 5) |  4
+  };
+  
+  /// Invert the specified predicate.  != -> ==, < -> >=.
+  Predicate InvertPredicate(Predicate Opcode);
+}
+}
+
+#endif