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4dfd44479d
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19 Commits

Author SHA1 Message Date
kmillikin@chromium.org
4dfd44479d Added support for assignments to global variables in the toplevel code 
generator.  We use the normal store IC mechanism with the global
object as the receiver.  The following code is generated for 'x=true'
at toplevel.

======== IA32:

27  mov eax,0xf5d06161          ;; object: 0xf5d06161 <true>
32  mov ecx,0xf5d09c35          ;; object: 0xf5d09c35 <String[1]: x>
37  push [esi+0x17]
40  call StoreIC_Initialize  (0xf5ce75c0)    ;; code: STORE_IC, UNINITIALIZED
45  mov [esp],eax

======== X64:

25  movq rax,0x7f867a7b6199    ;; object: 0x7f867a7b6199 <true>
35  movq rcx,0x7f867a7bae71    ;; object: 0x7f867a7bae71 <String[1]: x>
45  push [rsi+0x2f]
49  call StoreIC_Initialize  (0x7f8655929ac0)    ;; code: STORE_IC, UNINITIALIZED
54  movq [rsp],rax

======== ARM:

32  e59f0054       ldr r0, [pc, #+84]          ;; object: 0xf5b78161 <true>
36  e59f2054       ldr r2, [pc, #+84]          ;; object: 0xf5b7bc35 <String[1]: x>
40  e598c017       ldr ip, [r8, #+23]
44  e52dc004       str ip, [sp, #-4]!
48  e1a0e00f       mov lr, pc
52  e59ff048       ldr pc, [pc, #+72]          ;; debug: statement 0
                                               ;; code: STORE_IC, UNINITIALIZED
56  e58d0000       str r0, [sp, #+0]

Review URL: http://codereview.chromium.org/305005

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@3095 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2009-10-20 13:37:26 +00:00
sgjesse@chromium.org
34d6ff7606 Implemented missing pieces of the debugger for ARM. 
The main piece of this change was to add support for break on return for ARM. On ARM the normal js function return consist of the following code sequence.

  mov sp, fp
  ldmia sp!, {fp, lr}
  add sp, sp, #4
  bx lr

to a call to the debug break return entry code using the following code sequence

  mov lr, pc
  ldr pc, [pc, #-4]
  <debug break return entry code entry point address>
  bktp 0

The values of Assembler::kPatchReturnSequenceLength and Assembler::kPatchReturnSequenceLength are somewhat misleading, but they fit the current use in the debugger. Also Assembler::kPatchReturnSequenceLength is used in the IC code as well (for something which is not related to return sequences at all). I will change that in a separate changelist.

For the debugger to work also added recording of the return sequence in the relocation info and handling of source position recording when a function ends with a return statement.

Used the constant kInstrSize instead of sizeof(Instr).

Passes all debugger tests on both simulator and hardware (only release mode tested on hardware).
Review URL: http://codereview.chromium.org/199075

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@2879 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2009-09-14 06:57:24 +00:00
erik.corry@gmail.com
fcf8293df2 Move stack check into AllocateStackSlots so the load delay can be 
interleaved with other instructions.  Reorder the stack check
slightly to avoid some load delay. The end result is almost
imperceptible.
Review URL: http://codereview.chromium.org/181019

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@2784 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2009-08-31 10:38:00 +00:00
erik.corry@gmail.com
a29d4e6762 * Make stack/preemption guard faster on ARM by putting stack 
limit in the roots array.
Review URL: http://codereview.chromium.org/174517

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@2760 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2009-08-26 10:27:32 +00:00
erik.corry@gmail.com
038f9074bc Reapply ARM root array change to reduce const pool size 
by using r10 to point to a list of common root objects.
This time we also disable a debugger test on ARM that
has never worked, but with this change sometimes
crashes.
Review URL: http://codereview.chromium.org/174317

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@2744 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2009-08-24 11:57:57 +00:00
feng@chromium.org
33fb11c12f Revert commit 2701 per Erik Corry's request. 
Original CL:

http://codereview.chromium.org/171041
Review URL: http://codereview.chromium.org/171089

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@2702 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2009-08-18 00:12:26 +00:00
whesse@chromium.org
349dc04a5d Use root array to load roots in generated ARM code. 
This cuts down on code size and reloc work.
Review URL: http://codereview.chromium.org/171041

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@2701 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2009-08-17 14:31:49 +00:00
kmillikin@chromium.org
d1f846cb2b Remove much of the register allocation overhead from ARM. When 
registers are required for calls, explicitly construct a Result with
the needed register rather than allocating it.  For returns from
calls, let the return value in r0 be implicit rather than explicitly
allocated.

Review URL: http://codereview.chromium.org/164316

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@2659 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2009-08-11 11:46:27 +00:00
kmillikin@chromium.org
a53c70c788 Eliminate most of the jump target jumping, branching, and binding 
overhead on the ARM platform.

Because virtual frames are always in memory, there is no work to be
done for control flow except in the case of breaking or continuing
when there is extra statement state on the stack.

Review URL: http://codereview.chromium.org/165230

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@2655 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2009-08-10 11:13:34 +00:00
erik.corry@gmail.com
8bd85d8c82 Add instanceof stub for ARM. 
Review URL: http://codereview.chromium.org/119353

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@2132 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2009-06-10 11:42:13 +00:00
kmillikin@chromium.org
94a122296d Cleanup of ARM exception handlers. Remove the unused code and 
parameter pointer slots.  Change it so that the handler address no
longer points into the middle of the handler.

Review URL: http://codereview.chromium.org/119414

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@2129 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2009-06-10 09:00:07 +00:00
kmillikin@chromium.org
9c829fafe9 Change the register allocator so that it no longer tracks references 
to the platform-specific reserved registers.  They are always in use
for their intended purpose, cannot appear in the virtual frame, and
can be freely used without allocation in the code generator.

Review URL: http://codereview.chromium.org/113837

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@2061 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2009-05-27 07:53:47 +00:00
mikhail.naganov@gmail.com
30a0a7de43 Split nested namespaces declaration in two lines in accordance with C++ Style Guide. 
This issue was raised by Brett Wilson while reviewing my changelist for readability. Craig Silverstein (one of C++ SG maintainers) confirmed that we should declare one namespace per line. Our way of namespaces closing seems not violating style guides (there is no clear agreement on it), so I left it intact.

Review URL: http://codereview.chromium.org/115756


git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@2038 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2009-05-25 10:05:56 +00:00
kmillikin@chromium.org
bcff796134 Size reduction of VirtualFrame objects. Remove the code generator and 
macro assembler pointers and all derived state.

Review URL: http://codereview.chromium.org/115564

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@2011 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2009-05-20 11:14:18 +00:00
ager@chromium.org
33debd1460 Fix build on arm and x64. 
Note to self: remember all platforms.
Review URL: http://codereview.chromium.org/115399

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@1967 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2009-05-15 11:32:03 +00:00
bak@chromium.org
c70ec7a3d2 - Make VirtualFrame and JumpTarget zone allocated. 
- Compacted the VirtualFrame representation.
-> Improved the compiler speed with 10%

Review URL: http://codereview.chromium.org/115345

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@1947 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2009-05-14 11:03:55 +00:00
erik.corry@gmail.com
4a120eccdc Fix asterisk spacing. 
Review URL: http://codereview.chromium.org/113333

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@1932 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2009-05-13 12:34:35 +00:00
kmillikin@chromium.org
cc0c8d178f Materializing a frame element on the stack by pushing it can cause the 
stack pointer to change by more than one in a corner case.  If we push
a constant smi larger than 16 bits, we push it via a temporary
register.  Allocating the temporary can cause a register to be spilled
from the frame somewhere above the stack pointer.

As a fix, do not use pushes to materialize ranges of elements of size
larger than one.

Review URL: http://codereview.chromium.org/92121

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@1785 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2009-04-24 11:26:49 +00:00
lrn@chromium.org
a4d756a1c8 Move backend specific files to separate directories. 
Move ia32 and arm specific files to subdirectories to make it easier to add more backends.

Review URL: http://codereview.chromium.org/92068


git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@1782 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2009-04-23 12:06:38 +00:00