From a3022926f3d641e225d2bce09bb88682da586fd7 Mon Sep 17 00:00:00 2001
From: iveresov <none@none>
Date: Thu, 27 May 2010 22:01:55 -0700
Subject: 6955349: C1: Make G1 barriers work with x64 Summary: This fixes G1
 barriers in c1 on x64. Reviewed-by: never

---
 src/cpu/x86/vm/c1_Runtime1_x86.cpp | 61 +++++++++++++++++++++++++++++++-------
 1 file changed, 50 insertions(+), 11 deletions(-)

(limited to 'src/cpu/x86/vm/c1_Runtime1_x86.cpp')

diff --git a/src/cpu/x86/vm/c1_Runtime1_x86.cpp b/src/cpu/x86/vm/c1_Runtime1_x86.cpp
index 3ca8ef636..134409f60 100644
--- a/src/cpu/x86/vm/c1_Runtime1_x86.cpp
+++ b/src/cpu/x86/vm/c1_Runtime1_x86.cpp
@@ -1581,7 +1581,6 @@ OopMapSet* Runtime1::generate_code_for(StubID id, StubAssembler* sasm) {
           __ should_not_reach_here();
           break;
         }
-
         __ push(rax);
         __ push(rdx);
 
@@ -1605,8 +1604,8 @@ OopMapSet* Runtime1::generate_code_for(StubID id, StubAssembler* sasm) {
 
         // Can we store original value in the thread's buffer?
 
-        LP64_ONLY(__ movslq(tmp, queue_index);)
 #ifdef _LP64
+        __ movslq(tmp, queue_index);
         __ cmpq(tmp, 0);
 #else
         __ cmpl(queue_index, 0);
@@ -1628,13 +1627,33 @@ OopMapSet* Runtime1::generate_code_for(StubID id, StubAssembler* sasm) {
         __ jmp(done);
 
         __ bind(runtime);
-        // load the pre-value
         __ push(rcx);
+#ifdef _LP64
+        __ push(r8);
+        __ push(r9);
+        __ push(r10);
+        __ push(r11);
+#  ifndef _WIN64
+        __ push(rdi);
+        __ push(rsi);
+#  endif
+#endif
+        // load the pre-value
         f.load_argument(0, rcx);
         __ call_VM_leaf(CAST_FROM_FN_PTR(address, SharedRuntime::g1_wb_pre), rcx, thread);
+#ifdef _LP64
+#  ifndef _WIN64
+        __ pop(rsi);
+        __ pop(rdi);
+#  endif
+        __ pop(r11);
+        __ pop(r10);
+        __ pop(r9);
+        __ pop(r8);
+#endif
         __ pop(rcx);
-
         __ bind(done);
+
         __ pop(rdx);
         __ pop(rax);
       }
@@ -1664,13 +1683,13 @@ OopMapSet* Runtime1::generate_code_for(StubID id, StubAssembler* sasm) {
                                         PtrQueue::byte_offset_of_buf()));
 
         __ push(rax);
-        __ push(rdx);
+        __ push(rcx);
 
         NOT_LP64(__ get_thread(thread);)
         ExternalAddress cardtable((address)ct->byte_map_base);
         assert(sizeof(*ct->byte_map_base) == sizeof(jbyte), "adjust this code");
 
-        const Register card_addr = rdx;
+        const Register card_addr = rcx;
 #ifdef _LP64
         const Register tmp = rscratch1;
         f.load_argument(0, card_addr);
@@ -1679,7 +1698,7 @@ OopMapSet* Runtime1::generate_code_for(StubID id, StubAssembler* sasm) {
         // get the address of the card
         __ addq(card_addr, tmp);
 #else
-        const Register card_index = rdx;
+        const Register card_index = rcx;
         f.load_argument(0, card_index);
         __ shrl(card_index, CardTableModRefBS::card_shift);
 
@@ -1716,12 +1735,32 @@ OopMapSet* Runtime1::generate_code_for(StubID id, StubAssembler* sasm) {
         __ jmp(done);
 
         __ bind(runtime);
-        NOT_LP64(__ push(rcx);)
+        __ push(rdx);
+#ifdef _LP64
+        __ push(r8);
+        __ push(r9);
+        __ push(r10);
+        __ push(r11);
+#  ifndef _WIN64
+        __ push(rdi);
+        __ push(rsi);
+#  endif
+#endif
         __ call_VM_leaf(CAST_FROM_FN_PTR(address, SharedRuntime::g1_wb_post), card_addr, thread);
-        NOT_LP64(__ pop(rcx);)
-
-        __ bind(done);
+#ifdef _LP64
+#  ifndef _WIN64
+        __ pop(rsi);
+        __ pop(rdi);
+#  endif
+        __ pop(r11);
+        __ pop(r10);
+        __ pop(r9);
+        __ pop(r8);
+#endif
         __ pop(rdx);
+        __ bind(done);
+
+        __ pop(rcx);
         __ pop(rax);
 
       }
-- 
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