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Diffstat (limited to 'src/cpu/x86/vm/assembler_x86.cpp')
-rw-r--r--src/cpu/x86/vm/assembler_x86.cpp108
1 files changed, 67 insertions, 41 deletions
diff --git a/src/cpu/x86/vm/assembler_x86.cpp b/src/cpu/x86/vm/assembler_x86.cpp
index 85dc5411f..4c87f23cd 100644
--- a/src/cpu/x86/vm/assembler_x86.cpp
+++ b/src/cpu/x86/vm/assembler_x86.cpp
@@ -1,5 +1,5 @@
/*
- * Copyright (c) 1997, 2010, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 1997, 2011, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
@@ -820,7 +820,20 @@ void Assembler::emit_farith(int b1, int b2, int i) {
}
-// Now the Assembler instruction (identical for 32/64 bits)
+// Now the Assembler instructions (identical for 32/64 bits)
+
+void Assembler::adcl(Address dst, int32_t imm32) {
+ InstructionMark im(this);
+ prefix(dst);
+ emit_arith_operand(0x81, rdx, dst, imm32);
+}
+
+void Assembler::adcl(Address dst, Register src) {
+ InstructionMark im(this);
+ prefix(dst, src);
+ emit_byte(0x11);
+ emit_operand(src, dst);
+}
void Assembler::adcl(Register dst, int32_t imm32) {
prefix(dst);
@@ -2195,9 +2208,7 @@ void Assembler::notl(Register dst) {
void Assembler::orl(Address dst, int32_t imm32) {
InstructionMark im(this);
prefix(dst);
- emit_byte(0x81);
- emit_operand(rcx, dst, 4);
- emit_long(imm32);
+ emit_arith_operand(0x81, rcx, dst, imm32);
}
void Assembler::orl(Register dst, int32_t imm32) {
@@ -2205,7 +2216,6 @@ void Assembler::orl(Register dst, int32_t imm32) {
emit_arith(0x81, 0xC8, dst, imm32);
}
-
void Assembler::orl(Register dst, Address src) {
InstructionMark im(this);
prefix(src, dst);
@@ -2213,7 +2223,6 @@ void Assembler::orl(Register dst, Address src) {
emit_operand(dst, src);
}
-
void Assembler::orl(Register dst, Register src) {
(void) prefix_and_encode(dst->encoding(), src->encoding());
emit_arith(0x0B, 0xC0, dst, src);
@@ -2692,20 +2701,7 @@ void Assembler::stmxcsr( Address dst) {
void Assembler::subl(Address dst, int32_t imm32) {
InstructionMark im(this);
prefix(dst);
- if (is8bit(imm32)) {
- emit_byte(0x83);
- emit_operand(rbp, dst, 1);
- emit_byte(imm32 & 0xFF);
- } else {
- emit_byte(0x81);
- emit_operand(rbp, dst, 4);
- emit_long(imm32);
- }
-}
-
-void Assembler::subl(Register dst, int32_t imm32) {
- prefix(dst);
- emit_arith(0x81, 0xE8, dst, imm32);
+ emit_arith_operand(0x81, rbp, dst, imm32);
}
void Assembler::subl(Address dst, Register src) {
@@ -2715,6 +2711,11 @@ void Assembler::subl(Address dst, Register src) {
emit_operand(src, dst);
}
+void Assembler::subl(Register dst, int32_t imm32) {
+ prefix(dst);
+ emit_arith(0x81, 0xE8, dst, imm32);
+}
+
void Assembler::subl(Register dst, Address src) {
InstructionMark im(this);
prefix(src, dst);
@@ -4333,6 +4334,7 @@ void Assembler::sarq(Register dst) {
emit_byte(0xD3);
emit_byte(0xF8 | encode);
}
+
void Assembler::sbbq(Address dst, int32_t imm32) {
InstructionMark im(this);
prefixq(dst);
@@ -4392,20 +4394,7 @@ void Assembler::shrq(Register dst) {
void Assembler::subq(Address dst, int32_t imm32) {
InstructionMark im(this);
prefixq(dst);
- if (is8bit(imm32)) {
- emit_byte(0x83);
- emit_operand(rbp, dst, 1);
- emit_byte(imm32 & 0xFF);
- } else {
- emit_byte(0x81);
- emit_operand(rbp, dst, 4);
- emit_long(imm32);
- }
-}
-
-void Assembler::subq(Register dst, int32_t imm32) {
- (void) prefixq_and_encode(dst->encoding());
- emit_arith(0x81, 0xE8, dst, imm32);
+ emit_arith_operand(0x81, rbp, dst, imm32);
}
void Assembler::subq(Address dst, Register src) {
@@ -4415,6 +4404,11 @@ void Assembler::subq(Address dst, Register src) {
emit_operand(src, dst);
}
+void Assembler::subq(Register dst, int32_t imm32) {
+ (void) prefixq_and_encode(dst->encoding());
+ emit_arith(0x81, 0xE8, dst, imm32);
+}
+
void Assembler::subq(Register dst, Address src) {
InstructionMark im(this);
prefixq(src, dst);
@@ -7136,9 +7130,9 @@ void MacroAssembler::tlab_allocate(Register obj,
}
// Preserves rbx, and rdx.
-void MacroAssembler::tlab_refill(Label& retry,
- Label& try_eden,
- Label& slow_case) {
+Register MacroAssembler::tlab_refill(Label& retry,
+ Label& try_eden,
+ Label& slow_case) {
Register top = rax;
Register t1 = rcx;
Register t2 = rsi;
@@ -7185,7 +7179,7 @@ void MacroAssembler::tlab_refill(Label& retry,
// if tlab is currently allocated (top or end != null) then
// fill [top, end + alignment_reserve) with array object
- testptr (top, top);
+ testptr(top, top);
jcc(Assembler::zero, do_refill);
// set up the mark word
@@ -7197,16 +7191,20 @@ void MacroAssembler::tlab_refill(Label& retry,
movl(Address(top, arrayOopDesc::length_offset_in_bytes()), t1);
// set klass to intArrayKlass
// dubious reloc why not an oop reloc?
- movptr(t1, ExternalAddress((address) Universe::intArrayKlassObj_addr()));
+ movptr(t1, ExternalAddress((address)Universe::intArrayKlassObj_addr()));
// store klass last. concurrent gcs assumes klass length is valid if
// klass field is not null.
store_klass(top, t1);
+ movptr(t1, top);
+ subptr(t1, Address(thread_reg, in_bytes(JavaThread::tlab_start_offset())));
+ incr_allocated_bytes(thread_reg, t1, 0);
+
// refill the tlab with an eden allocation
bind(do_refill);
movptr(t1, Address(thread_reg, in_bytes(JavaThread::tlab_size_offset())));
shlptr(t1, LogHeapWordSize);
- // add object_size ??
+ // allocate new tlab, address returned in top
eden_allocate(top, t1, 0, t2, slow_case);
// Check that t1 was preserved in eden_allocate.
@@ -7234,6 +7232,34 @@ void MacroAssembler::tlab_refill(Label& retry,
movptr(Address(thread_reg, in_bytes(JavaThread::tlab_end_offset())), top);
verify_tlab();
jmp(retry);
+
+ return thread_reg; // for use by caller
+}
+
+void MacroAssembler::incr_allocated_bytes(Register thread,
+ Register var_size_in_bytes,
+ int con_size_in_bytes,
+ Register t1) {
+#ifdef _LP64
+ if (var_size_in_bytes->is_valid()) {
+ addq(Address(thread, in_bytes(JavaThread::allocated_bytes_offset())), var_size_in_bytes);
+ } else {
+ addq(Address(thread, in_bytes(JavaThread::allocated_bytes_offset())), con_size_in_bytes);
+ }
+#else
+ if (!thread->is_valid()) {
+ assert(t1->is_valid(), "need temp reg");
+ thread = t1;
+ get_thread(thread);
+ }
+
+ if (var_size_in_bytes->is_valid()) {
+ addl(Address(thread, in_bytes(JavaThread::allocated_bytes_offset())), var_size_in_bytes);
+ } else {
+ addl(Address(thread, in_bytes(JavaThread::allocated_bytes_offset())), con_size_in_bytes);
+ }
+ adcl(Address(thread, in_bytes(JavaThread::allocated_bytes_offset())+4), 0);
+#endif
}
static const double pi_4 = 0.7853981633974483;
generated by cgit v1.2.3 (git 2.25.1) at 2024-07-20 18:48:16 +0000