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226 Commits
Author SHA1 Message Date
Eli Friedman 26689ac37e New approach to r136737: insert the necessary fences for atomic ops in platform-independent code, since a bunch of platforms (ARM, Mips, PPC, Alpha are the relevant targets here) need to do essentially the same thing. 
I think this completes the basic CodeGen for atomicrmw and cmpxchg.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136813 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-03 21:06:02 +00:00
Eli Friedman 1464846801 Code generation for 'fence' instruction. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136283 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-07-27 22:21:52 +00:00
Akira Hatanaka db54826f20 Lower memory barriers to sync instructions. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@135537 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-07-19 23:30:50 +00:00
Akira Hatanaka bdd83fe382 Change variable name. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@135522 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-07-19 20:56:53 +00:00
Akira Hatanaka cc7ecc7290 Use the correct opcodes: SLLV/SRLV or AND must be used instead of SLL/SRL or 
ANDi, when the instruction does not have any immediate operands.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@135520 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-07-19 20:34:00 +00:00
Akira Hatanaka 4061da1403 Use descriptive variable names. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@135514 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-07-19 20:11:17 +00:00
Akira Hatanaka 29af0918ce Fix comments. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@135496 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-07-19 18:19:40 +00:00
Akira Hatanaka 70564a9c19 Remove redundant instructions. 
- In EmitAtomicBinaryPartword, mask incr in loopMBB only if atomic.swap is the
  instruction being expanded, instead of masking it in thisMBB. 
- Remove redundant Or in EmitAtomicCmpSwap. 



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@135495 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-07-19 18:14:26 +00:00
Akira Hatanaka 81b441151f Separate code that modifies control flow from code that adds instruction to 
basic blocks.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@135490 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-07-19 17:09:53 +00:00
Akira Hatanaka 939ece1b5c Make EmitAtomic functions return the correct MachineBasicBlocks so that 
ExpandISelPseudos::runOnMachineFunction does not visit instructions that have
just been added.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@135465 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-07-19 03:42:13 +00:00
Akira Hatanaka a308c670b4 Do not insert instructions in reverse order. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@135464 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-07-19 03:14:58 +00:00
Akira Hatanaka a921164f39 Do not treat atomic.load.sub differently than other atomic binary intrinsics. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@135418 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-07-18 19:58:59 +00:00
Akira Hatanaka 0d7d0b5cb7 Set mayLoad or mayStore flags for SC and LL in order to prevent LICM from 
moving them out of the loop. Previously, stores and loads to a stack frame
object were inserted to accomplish this. Remove the code that was needed to do
this. Patch by Sasa Stankovic.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@135415 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-07-18 18:52:12 +00:00
Akira Hatanaka 45473c1b15 Change destination register operands of SC instructions so that unique 
virtual registers are used. 


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@135403 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-07-18 17:44:27 +00:00
Chris Lattner db125cfaf5 land David Blaikie's patch to de-constify Type, with a few tweaks. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@135375 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-07-18 04:54:35 +00:00
Cameron Zwarich 33390848a7 Add an intrinsic and codegen support for fused multiply-accumulate. The intent 
is to use this for architectures that have a native FMA instruction.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@134742 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-07-08 21:39:21 +00:00
Akira Hatanaka 794bf17cbe Lower MachineInstr to MC Inst and print to .s files. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@134661 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-07-07 23:56:50 +00:00
Akira Hatanaka d3ac47f805 Reverse order of operands of address operand mem so that the base operand comes 
before the offset. This change will enable simplification of function
MipsRegisterInfo::eliminateFrameIndex.





git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@134625 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-07-07 18:57:00 +00:00
Eric Christopher 38d6426523 Update comment for getRegForInlineAsmConstraint for Mips. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@134087 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-06-29 19:33:04 +00:00
Eric Christopher 314aff1474 Remove getRegClassForInlineAsmConstraint for Mips. 
Part of rdar://9643582


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@134084 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-06-29 19:04:31 +00:00
Akira Hatanaka 25eba399cb Change the chain input of nodes that load the address of a function. This change 
enables SelectionDAG::getLoad at MipsISelLowering.cpp:1914 to return a
pre-existing node instead of redundantly create a new node every time it is
called.




git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@133811 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-06-24 19:01:25 +00:00
Akira Hatanaka 5f7451ff6e Coding style fixes. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@133496 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-06-21 01:02:03 +00:00
Akira Hatanaka 21afc63ea7 Re-apply 132758 and 132768 which were speculatively reverted in 132777. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@133494 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-06-21 00:40:49 +00:00
Bruno Cardoso Lopes e0b5cfcae8 Silence warnings in non assert builds. Patch by David Blaikie 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@133118 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-06-16 00:40:02 +00:00
Eric Christopher 6f3661fdcd Speculatively revert 132758 and 132768 to try to fix the Windows buildbots. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132777 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-06-09 16:03:19 +00:00
Eric Christopher 471e422480 Add a parameter to CCState so that it can access the MachineFunction. 
No functional change.

Part of PR6965


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132763 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-06-08 23:55:35 +00:00
Akira Hatanaka 69b9044c66 Fix bug in lowering of DYNAMIC_STACKALLOC nodes. The correct offset of the 
dynamically allocated stack area was not set.




git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132758 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-06-08 21:28:09 +00:00
Akira Hatanaka 3d21c2495d Reorganize code in MipsTargetLowering::LowerCall to improve readability. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132756 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-06-08 17:39:33 +00:00
Akira Hatanaka 14487d4f66 Refactor MipsTargetLowering::EmitInstrWithCustomInserter. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132726 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-06-07 19:28:39 +00:00
Akira Hatanaka 0f84382138 Coding style fixes. 
- Fix indentation.
- Move comments.
- Fit lines in 80 columns.
- Remove dead code.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132724 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-06-07 18:58:42 +00:00
Akira Hatanaka 2e591477af Custom-lower FRAMEADDR. Patch by Sasa Stankovic. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132444 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-06-02 00:24:44 +00:00
Bruno Cardoso Lopes cada2d0966 Fix uninitialized variables and silence warnings 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132355 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-31 20:25:26 +00:00
Bruno Cardoso Lopes 4e694c96f1 This patch implements atomic intrinsics atomic.load.add (sub,and,or,xor, 
nand), atomic.swap and atomic.cmp.swap, all in i8, i16 and i32 versions.
The intrinsics are implemented by creating pseudo-instructions, which are
then expanded in the method MipsTargetLowering::EmitInstrWithCustomInserter.

Patch by Sasa Stankovic.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132323 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-31 02:54:07 +00:00
Bruno Cardoso Lopes d979686bb4 This patch implements the thread local storage. Implemented are General 
Dynamic, Initial Exec and Local Exec TLS models.

Patch by Sasa Stankovic

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132322 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-31 02:53:58 +00:00
Akira Hatanaka 342837d0dc Define a wrapper node for target constant nodes (tglobaladdr, etc.). 
Need this to prevent emitting illegal conditional move instructions. 


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132240 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-28 01:07:07 +00:00
Akira Hatanaka 33458fedb6 Use MachineFrameInfo::hasCalls instead of MipsFunctionInfo::hasCall to check if 
a function has any function calls.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132140 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-26 20:30:31 +00:00
Akira Hatanaka cf0cd8005c Add support for C++ exception handling. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132131 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-26 18:59:03 +00:00
Akira Hatanaka d85b3ecbb3 Remove MipsTargetLowering::LowerFP_TO_SINT. Patterns for fp_to_sint have already 
been defined in MipsInstrFPU.td.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132076 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-25 20:08:05 +00:00
Akira Hatanaka 9c3d57c45e Custom-lower FCOPYSIGN nodes. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132074 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-25 19:32:07 +00:00
Akira Hatanaka 4c62f765a3 Update MaxCallFrameSize regardless of the relocation model selected. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132070 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-25 18:08:32 +00:00
Akira Hatanaka f15f498507 Change initial value of MaxCallFrameSize. MipsFI::getMaxCallFrameSize() should 
return 0 if there are no function calls made. 



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132065 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-25 17:52:48 +00:00
Akira Hatanaka edacba83dc Coding style fixes. Added comments. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132063 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-25 17:32:06 +00:00
Akira Hatanaka 053546c31e Fix lowering of DYNAMIC_STACKALLOC nodes. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132030 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-25 02:20:00 +00:00
Akira Hatanaka 4231c7ea6d Implement byval structure argument passing. The following limitations or 
deficiencies exist:

- Works only if ABI is o32.
- Zero-sized structures cannot be passed.
- There is a lot of redundancy in generated code.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131986 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-24 19:18:33 +00:00
Akira Hatanaka b4d8d31e59 Simplify offset calculation of stack frame objects for $gp restore location and 
variable arguments in LowerCall and LowerFormalArguments. This should also fix
the bug in which handling of variable arguments is incorrect when the front-end
optimizes away unused fixed arguments.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131942 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-24 00:23:52 +00:00
Akira Hatanaka 46da136ec7 Expand f64 FPOW. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131928 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-23 22:23:58 +00:00
Akira Hatanaka bdd2ce9741 Fixes related to coding style. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131922 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-23 21:13:59 +00:00
Akira Hatanaka 69c19f7316 Change StackDirection from StackGrowsUp to StackGrowsDown. 
The following improvements are accomplished as a result of applying this patch:
- Fixed frame objects' offsets (relative to either the virtual frame pointer or
  the stack pointer) are set before instruction selection is completed. There is
  no need to wait until Prologue/Epilogue Insertion is run to set them.
- Calculation of final offsets of fixed frame objects is straightforward. It is
  no longer necessary to assign negative offsets to fixed objects for incoming
  arguments in order to distinguish them from the others.
- Since a fixed object has its relative offset set during instruction
  selection, there is no need to conservatively set its alignment to 4.
- It is no longer necessary to reorder non-fixed frame objects in 
  MipsFrameLowering::adjustMipsStackFrame.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131915 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-23 20:16:59 +00:00
Akira Hatanaka 43299776d7 Change the order fixed objects are created in MipsTargetLowering::LowerCall in 
preparation for reversing StackDirection.

Fixed objects are created in the following order:  
 1. Incoming arguments passed on stack.
 2. va_arg objects (include both arguments that are passed in registers and
    pointer to the location of the first va_arg argument).
 3. $gp restore slot.
 4. Outgoing arguments passed on stack.
 5. Pointer to alloca'd space.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131767 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-20 23:22:14 +00:00
Akira Hatanaka d37776d1c1 In CC_MipsO32, allocate a stack space regardless of whether the argument is 
passed in register or on the stack.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131758 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-20 21:39:54 +00:00