Replace invoke kind kDexCacheViaMethod with kRuntimeCall.

In preparation for replacing the dex cache method array
with a hash-based array, get rid of one unnecessary use.
This method load kind is currently used only on mips for
irreducible loops and OSR, so this should have no impact
on x86/x86-64/arm/arm64.

Test: m test-art-host-gtest
Test: testrunner.py --host
Test: Repeat the above tests with manually changing
      kDexCachePcRelative to kRuntimeCall in sharpening.cc.
      (Ignore failures in 552-checker-sharpening.)
Bug: 30627598
Change-Id: Ifce42645f2dcc350bbb88c2f4642e88fc5f98152

1 files changed, 4 insertions, 6 deletions

diff --git a/compiler/optimizing/nodes.h b/compiler/optimizing/nodes.h
index 4d96fbe24c..99ad07187e 100644
--- a/compiler/optimizing/nodes.h
+++ b/compiler/optimizing/nodes.h
@@ -4167,11 +4167,9 @@ class HInvokeStaticOrDirect FINAL : public HInvoke {
     // and we know that we can access the dex cache arrays using a PC-relative load.
     kDexCachePcRelative,
 
-    // Use ArtMethod* from the resolved methods of the compiled method's own ArtMethod*.
-    // Used for JIT when we need to use the dex cache. This is also the last-resort-kind
-    // used when other kinds are unavailable (say, dex cache arrays are not PC-relative)
-    // or unimplemented or impractical (i.e. slow) on a particular architecture.
-    kDexCacheViaMethod,
+    // Make a runtime call to resolve and call the method. This is the last-resort-kind
+    // used when other kinds are unimplemented on a particular architecture.
+    kRuntimeCall,
   };
 
   // Determines the location of the code pointer.
@@ -4371,7 +4369,7 @@ class HInvokeStaticOrDirect FINAL : public HInvoke {
 
   // Does this method load kind need the current method as an input?
   static bool NeedsCurrentMethodInput(MethodLoadKind kind) {
-    return kind == MethodLoadKind::kRecursive || kind == MethodLoadKind::kDexCacheViaMethod;
+    return kind == MethodLoadKind::kRecursive || kind == MethodLoadKind::kRuntimeCall;
   }
 
   DECLARE_INSTRUCTION(InvokeStaticOrDirect);