ppc64: [baseline] create condition mappings

Change-Id: I0bf578e877eaee280b7825ff3c1407815d57e7f9
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3513615Reviewed-by: Milad Farazmand <mfarazma@redhat.com>
Commit-Queue: Junliang Yan <junyan@redhat.com>
Cr-Commit-Position: refs/heads/main@{#79427}

src/baseline/ppc/baseline-assembler-ppc-inl.h

@@ -49,29 +49,63 @@ class BaselineAssembler::ScratchRegisterScope {
 
 // TODO(v8:11429,leszeks): Unify condition names in the MacroAssembler.
 enum class Condition : uint32_t {
-  kEqual = static_cast<uint32_t>(eq),
-  kNotEqual = static_cast<uint32_t>(ne),
+  kEqual,
+  kNotEqual,
 
-  kLessThan = static_cast<uint32_t>(lt),
-  kGreaterThan = static_cast<uint32_t>(gt),
-  kLessThanEqual = static_cast<uint32_t>(le),
-  kGreaterThanEqual = static_cast<uint32_t>(ge),
+  kLessThan,
+  kGreaterThan,
+  kLessThanEqual,
+  kGreaterThanEqual,
 
-  kUnsignedLessThan = static_cast<uint32_t>(lo),
-  kUnsignedGreaterThan = static_cast<uint32_t>(hi),
-  kUnsignedLessThanEqual = static_cast<uint32_t>(ls),
-  kUnsignedGreaterThanEqual = static_cast<uint32_t>(hs),
+  kUnsignedLessThan,
+  kUnsignedGreaterThan,
+  kUnsignedLessThanEqual,
+  kUnsignedGreaterThanEqual,
 
-  kOverflow = static_cast<uint32_t>(vs),
-  kNoOverflow = static_cast<uint32_t>(vc),
+  kOverflow,
+  kNoOverflow,
 
-  kZero = static_cast<uint32_t>(eq),
-  kNotZero = static_cast<uint32_t>(ne),
+  kZero,
+  kNotZero
 };
 
 inline internal::Condition AsMasmCondition(Condition cond) {
-  UNIMPLEMENTED();
-  return static_cast<internal::Condition>(cond);
+  STATIC_ASSERT(sizeof(internal::Condition) == sizeof(Condition));
+  switch (cond) {
+    case Condition::kEqual:
+      return eq;
+    case Condition::kNotEqual:
+      return ne;
+    case Condition::kLessThan:
+      return lt;
+    case Condition::kGreaterThan:
+      return gt;
+    case Condition::kLessThanEqual:
+      return le;
+    case Condition::kGreaterThanEqual:
+      return ge;
+
+    case Condition::kUnsignedLessThan:
+      return lt;
+    case Condition::kUnsignedGreaterThan:
+      return gt;
+    case Condition::kUnsignedLessThanEqual:
+      return le;
+    case Condition::kUnsignedGreaterThanEqual:
+      return ge;
+
+    case Condition::kOverflow:
+      return overflow;
+    case Condition::kNoOverflow:
+      return nooverflow;
+
+    case Condition::kZero:
+      return eq;
+    case Condition::kNotZero:
+      return ne;
+    default:
+      UNREACHABLE();
+  }
 }
 
 namespace detail {