From 0483ff56a08ea3ec05ffdbc1bd5c18089c0d5f72 Mon Sep 17 00:00:00 2001
From: Aleksey Shipilev <shade@openjdk.org>
Date: Thu, 27 Aug 2020 06:34:24 +0200
Subject: [PATCH] 8252362: C2: Remove no-op checking for callee-saved-floats

Reviewed-by: vlivanov
---
 src/hotspot/share/opto/c2compiler.cpp | 10 ----------
 1 file changed, 10 deletions(-)

diff --git a/src/hotspot/share/opto/c2compiler.cpp b/src/hotspot/share/opto/c2compiler.cpp
index e1ac66968a4..d4c455c852f 100644
--- a/src/hotspot/share/opto/c2compiler.cpp
+++ b/src/hotspot/share/opto/c2compiler.cpp
@@ -63,16 +63,6 @@ bool C2Compiler::init_c2_runtime() {
     }
   }
 
-  // Check that runtime and architecture description agree on callee-saved-floats
-  bool callee_saved_floats = false;
-  for( OptoReg::Name i=OptoReg::Name(0); i<OptoReg::Name(_last_Mach_Reg); i = OptoReg::add(i,1) ) {
-    // Is there a callee-saved float or double?
-    if( register_save_policy[i] == 'E' /* callee-saved */ &&
-       (register_save_type[i] == Op_RegF || register_save_type[i] == Op_RegD) ) {
-      callee_saved_floats = true;
-    }
-  }
-
   DEBUG_ONLY( Node::init_NodeProperty(); )
 
   Compile::pd_compiler2_init();