1 files changed, 85 insertions, 0 deletions

diff --git a/contrib/llvm-project/llvm/lib/Target/PowerPC/MCTargetDesc/PPCPredicates.cpp b/contrib/llvm-project/llvm/lib/Target/PowerPC/MCTargetDesc/PPCPredicates.cpp
new file mode 100644
index 000000000000..284e52c298a2
--- /dev/null
+++ b/contrib/llvm-project/llvm/lib/Target/PowerPC/MCTargetDesc/PPCPredicates.cpp
@@ -0,0 +1,85 @@
+//===-- PPCPredicates.cpp - PPC Branch Predicate Information --------------===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+//
+// This file implements the PowerPC branch predicates.
+//
+//===----------------------------------------------------------------------===//
+
+#include "PPCPredicates.h"
+#include "llvm/Support/ErrorHandling.h"
+#include <cassert>
+using namespace llvm;
+
+PPC::Predicate PPC::InvertPredicate(PPC::Predicate Opcode) {
+  switch (Opcode) {
+  case PPC::PRED_EQ: return PPC::PRED_NE;
+  case PPC::PRED_NE: return PPC::PRED_EQ;
+  case PPC::PRED_LT: return PPC::PRED_GE;
+  case PPC::PRED_GE: return PPC::PRED_LT;
+  case PPC::PRED_GT: return PPC::PRED_LE;
+  case PPC::PRED_LE: return PPC::PRED_GT;
+  case PPC::PRED_NU: return PPC::PRED_UN;
+  case PPC::PRED_UN: return PPC::PRED_NU;
+  case PPC::PRED_EQ_MINUS: return PPC::PRED_NE_PLUS;
+  case PPC::PRED_NE_MINUS: return PPC::PRED_EQ_PLUS;
+  case PPC::PRED_LT_MINUS: return PPC::PRED_GE_PLUS;
+  case PPC::PRED_GE_MINUS: return PPC::PRED_LT_PLUS;
+  case PPC::PRED_GT_MINUS: return PPC::PRED_LE_PLUS;
+  case PPC::PRED_LE_MINUS: return PPC::PRED_GT_PLUS;
+  case PPC::PRED_NU_MINUS: return PPC::PRED_UN_PLUS;
+  case PPC::PRED_UN_MINUS: return PPC::PRED_NU_PLUS;
+  case PPC::PRED_EQ_PLUS: return PPC::PRED_NE_MINUS;
+  case PPC::PRED_NE_PLUS: return PPC::PRED_EQ_MINUS;
+  case PPC::PRED_LT_PLUS: return PPC::PRED_GE_MINUS;
+  case PPC::PRED_GE_PLUS: return PPC::PRED_LT_MINUS;
+  case PPC::PRED_GT_PLUS: return PPC::PRED_LE_MINUS;
+  case PPC::PRED_LE_PLUS: return PPC::PRED_GT_MINUS;
+  case PPC::PRED_NU_PLUS: return PPC::PRED_UN_MINUS;
+  case PPC::PRED_UN_PLUS: return PPC::PRED_NU_MINUS;
+
+  // Simple predicates for single condition-register bits.
+  case PPC::PRED_BIT_SET:   return PPC::PRED_BIT_UNSET;
+  case PPC::PRED_BIT_UNSET: return PPC::PRED_BIT_SET;
+  }
+  llvm_unreachable("Unknown PPC branch opcode!");
+}
+
+PPC::Predicate PPC::getSwappedPredicate(PPC::Predicate Opcode) {
+  switch (Opcode) {
+  case PPC::PRED_EQ: return PPC::PRED_EQ;
+  case PPC::PRED_NE: return PPC::PRED_NE;
+  case PPC::PRED_LT: return PPC::PRED_GT;
+  case PPC::PRED_GE: return PPC::PRED_LE;
+  case PPC::PRED_GT: return PPC::PRED_LT;
+  case PPC::PRED_LE: return PPC::PRED_GE;
+  case PPC::PRED_NU: return PPC::PRED_NU;
+  case PPC::PRED_UN: return PPC::PRED_UN;
+  case PPC::PRED_EQ_MINUS: return PPC::PRED_EQ_MINUS;
+  case PPC::PRED_NE_MINUS: return PPC::PRED_NE_MINUS;
+  case PPC::PRED_LT_MINUS: return PPC::PRED_GT_MINUS;
+  case PPC::PRED_GE_MINUS: return PPC::PRED_LE_MINUS;
+  case PPC::PRED_GT_MINUS: return PPC::PRED_LT_MINUS;
+  case PPC::PRED_LE_MINUS: return PPC::PRED_GE_MINUS;
+  case PPC::PRED_NU_MINUS: return PPC::PRED_NU_MINUS;
+  case PPC::PRED_UN_MINUS: return PPC::PRED_UN_MINUS;
+  case PPC::PRED_EQ_PLUS: return PPC::PRED_EQ_PLUS;
+  case PPC::PRED_NE_PLUS: return PPC::PRED_NE_PLUS;
+  case PPC::PRED_LT_PLUS: return PPC::PRED_GT_PLUS;
+  case PPC::PRED_GE_PLUS: return PPC::PRED_LE_PLUS;
+  case PPC::PRED_GT_PLUS: return PPC::PRED_LT_PLUS;
+  case PPC::PRED_LE_PLUS: return PPC::PRED_GE_PLUS;
+  case PPC::PRED_NU_PLUS: return PPC::PRED_NU_PLUS;
+  case PPC::PRED_UN_PLUS: return PPC::PRED_UN_PLUS;
+
+  case PPC::PRED_BIT_SET:
+  case PPC::PRED_BIT_UNSET:
+    llvm_unreachable("Invalid use of bit predicate code");
+  }
+  llvm_unreachable("Unknown PPC branch opcode!");
+}
+