From d1075b72c819ee537bde8a302340c4b837402a76 Mon Sep 17 00:00:00 2001
From: hsbt <hsbt@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
Date: Tue, 12 Aug 2014 03:59:39 +0000
Subject: [PATCH] * vm_exec.c: improve performance in ppc64 arch.  
 [ruby-core:63437] [Feature #9997]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@47149 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
---
 ChangeLog | 5 +++++
 vm_exec.c | 8 ++++++++
 2 files changed, 13 insertions(+)

diff --git a/ChangeLog b/ChangeLog
index 6f62f68d4f..730969de43 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,8 @@
+Tue Aug 12 12:57:28 2014  SHIBATA Hiroshi  <shibata.hiroshi@gmail.com>
+
+	* vm_exec.c: improve performance in ppc64 arch.
+	  [ruby-core:63437] [Feature #9997]
+
 Tue Aug 12 12:14:52 2014  Akira Matsuda <ronnie@dio.jp>
 
 	* lib/fileutils.rb: fix typo.
diff --git a/vm_exec.c b/vm_exec.c
index 3a29136b1e..330d35a194 100644
--- a/vm_exec.c
+++ b/vm_exec.c
@@ -24,6 +24,9 @@ static void vm_analysis_insn(int insn);
 #elif defined(__GNUC__) && defined(__i386__)
 #define DECL_SC_REG(type, r, reg) register type reg_##r __asm__("e" reg)
 
+#elif defined(__GNUC__) && defined(__powerpc64__)
+#define DECL_SC_REG(type, r, reg) register type reg_##r __asm__("r" reg)
+
 #else
 #define DECL_SC_REG(type, r, reg) register type reg_##r
 #endif
@@ -70,6 +73,11 @@ vm_exec_core(rb_thread_t *th, VALUE initial)
 # endif
 #define USE_MACHINE_REGS 1
 
+#elif defined(__GNUC__) && defined(__powerpc64__)
+    DECL_SC_REG(VALUE *, pc, "14");
+    DECL_SC_REG(rb_control_frame_t *, cfp, "15");
+#define USE_MACHINE_REGS 1
+
 #else
     register rb_control_frame_t *reg_cfp;
     VALUE *reg_pc;