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f59cbeec14
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219 Commits

Author SHA1 Message Date
Akira Hatanaka
f59cbeec14 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. 

llvm-svn: 135495
 2011-07-19 18:14:26 +00:00
Akira Hatanaka
57d207bc7b Separate code that modifies control flow from code that adds instruction to 
basic blocks.

llvm-svn: 135490
 2011-07-19 17:09:53 +00:00
Akira Hatanaka
ad3687eb3a Make EmitAtomic functions return the correct MachineBasicBlocks so that 
ExpandISelPseudos::runOnMachineFunction does not visit instructions that have
just been added.

llvm-svn: 135465
 2011-07-19 03:42:13 +00:00
Akira Hatanaka
55b8d79a52 Do not insert instructions in reverse order. 
llvm-svn: 135464
 2011-07-19 03:14:58 +00:00
Akira Hatanaka
52263f51f1 Do not treat atomic.load.sub differently than other atomic binary intrinsics. 
llvm-svn: 135418
 2011-07-18 19:58:59 +00:00
Akira Hatanaka
79f38f0ae7 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.

llvm-svn: 135415
 2011-07-18 18:52:12 +00:00
Akira Hatanaka
d5690b20d3 Change destination register operands of SC instructions so that unique 
virtual registers are used. 

llvm-svn: 135403
 2011-07-18 17:44:27 +00:00
Chris Lattner
e1fe7061ce land David Blaikie's patch to de-constify Type, with a few tweaks. 
llvm-svn: 135375
 2011-07-18 04:54:35 +00:00
Cameron Zwarich
c23366d357 Add an intrinsic and codegen support for fused multiply-accumulate. The intent 
is to use this for architectures that have a native FMA instruction.

llvm-svn: 134742
 2011-07-08 21:39:21 +00:00
Akira Hatanaka
90fcf55a54 Lower MachineInstr to MC Inst and print to .s files. 
llvm-svn: 134661
 2011-07-07 23:56:50 +00:00
Akira Hatanaka
d3c031eb00 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.

llvm-svn: 134625
 2011-07-07 18:57:00 +00:00
Eric Christopher
f04ac137f3 Update comment for getRegForInlineAsmConstraint for Mips. 
llvm-svn: 134087
 2011-06-29 19:33:04 +00:00
Eric Christopher
82c3bcfb14 Remove getRegClassForInlineAsmConstraint for Mips. 
Part of rdar://9643582

llvm-svn: 134084
 2011-06-29 19:04:31 +00:00
Akira Hatanaka
539ba34c25 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.

llvm-svn: 133811
 2011-06-24 19:01:25 +00:00
Akira Hatanaka
1197db1f9b Coding style fixes. 
llvm-svn: 133496
 2011-06-21 01:02:03 +00:00
Akira Hatanaka
1e08980a21 Re-apply 132758 and 132768 which were speculatively reverted in 132777. 
llvm-svn: 133494
 2011-06-21 00:40:49 +00:00
Bruno Cardoso Lopes
762b3d1f0f Silence warnings in non assert builds. Patch by David Blaikie 
llvm-svn: 133118
 2011-06-16 00:40:02 +00:00
Eric Christopher
24dafa3dbc Speculatively revert 132758 and 132768 to try to fix the Windows buildbots. 
llvm-svn: 132777
 2011-06-09 16:03:19 +00:00
Eric Christopher
1ae9ec6124 Add a parameter to CCState so that it can access the MachineFunction. 
No functional change.

Part of PR6965

llvm-svn: 132763
 2011-06-08 23:55:35 +00:00
Akira Hatanaka
38115eb019 Fix bug in lowering of DYNAMIC_STACKALLOC nodes. The correct offset of the 
dynamically allocated stack area was not set.

llvm-svn: 132758
 2011-06-08 21:28:09 +00:00
Akira Hatanaka
ea8ce56dbb Reorganize code in MipsTargetLowering::LowerCall to improve readability. 
llvm-svn: 132756
 2011-06-08 17:39:33 +00:00
Akira Hatanaka
101d50423a Refactor MipsTargetLowering::EmitInstrWithCustomInserter. 
llvm-svn: 132726
 2011-06-07 19:28:39 +00:00
Akira Hatanaka
3b7982650c Coding style fixes. 
- Fix indentation.
- Move comments.
- Fit lines in 80 columns.
- Remove dead code.

llvm-svn: 132724
 2011-06-07 18:58:42 +00:00
Akira Hatanaka
69ae562f33 Custom-lower FRAMEADDR. Patch by Sasa Stankovic. 
llvm-svn: 132444
 2011-06-02 00:24:44 +00:00
Bruno Cardoso Lopes
9231127d37 Fix uninitialized variables and silence warnings 
llvm-svn: 132355
 2011-05-31 20:25:26 +00:00
Bruno Cardoso Lopes
728ea362c3 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.

llvm-svn: 132323
 2011-05-31 02:54:07 +00:00
Bruno Cardoso Lopes
f6fa29e7a1 This patch implements the thread local storage. Implemented are General 
Dynamic, Initial Exec and Local Exec TLS models.

Patch by Sasa Stankovic

llvm-svn: 132322
 2011-05-31 02:53:58 +00:00
Akira Hatanaka
1590e4eab1 Define a wrapper node for target constant nodes (tglobaladdr, etc.). 
Need this to prevent emitting illegal conditional move instructions. 

llvm-svn: 132240
 2011-05-28 01:07:07 +00:00
Akira Hatanaka
71839b355d Use MachineFrameInfo::hasCalls instead of MipsFunctionInfo::hasCall to check if 
a function has any function calls.

llvm-svn: 132140
 2011-05-26 20:30:31 +00:00
Akira Hatanaka
5bfbea9ef2 Add support for C++ exception handling. 
llvm-svn: 132131
 2011-05-26 18:59:03 +00:00
Akira Hatanaka
4806508364 Remove MipsTargetLowering::LowerFP_TO_SINT. Patterns for fp_to_sint have already 
been defined in MipsInstrFPU.td.

llvm-svn: 132076
 2011-05-25 20:08:05 +00:00
Akira Hatanaka
32b5043265 Custom-lower FCOPYSIGN nodes. 
llvm-svn: 132074
 2011-05-25 19:32:07 +00:00
Akira Hatanaka
ae2e2d557a Update MaxCallFrameSize regardless of the relocation model selected. 
llvm-svn: 132070
 2011-05-25 18:08:32 +00:00
Akira Hatanaka
953e0a3c45 Change initial value of MaxCallFrameSize. MipsFI::getMaxCallFrameSize() should 
return 0 if there are no function calls made. 

llvm-svn: 132065
 2011-05-25 17:52:48 +00:00
Akira Hatanaka
33415b8179 Coding style fixes. Added comments. 
llvm-svn: 132063
 2011-05-25 17:32:06 +00:00
Akira Hatanaka
a5b11ee449 Fix lowering of DYNAMIC_STACKALLOC nodes. 
llvm-svn: 132030
 2011-05-25 02:20:00 +00:00
Akira Hatanaka
f4c853e3e4 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.

llvm-svn: 131986
 2011-05-24 19:18:33 +00:00
Akira Hatanaka
d0694fb652 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.

llvm-svn: 131942
 2011-05-24 00:23:52 +00:00
Akira Hatanaka
e2e584df0e Expand f64 FPOW. 
llvm-svn: 131928
 2011-05-23 22:23:58 +00:00
Akira Hatanaka
daa4afec69 Fixes related to coding style. 
llvm-svn: 131922
 2011-05-23 21:13:59 +00:00
Akira Hatanaka
6ddbe02441 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.

llvm-svn: 131915
 2011-05-23 20:16:59 +00:00
Akira Hatanaka
66b7b0949f 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.

llvm-svn: 131767
 2011-05-20 23:22:14 +00:00
Akira Hatanaka
84f0431846 In CC_MipsO32, allocate a stack space regardless of whether the argument is 
passed in register or on the stack.

llvm-svn: 131758
 2011-05-20 21:39:54 +00:00
Akira Hatanaka
89801a318c Make $fp and $ra callee-saved registers and let PrologEpilogInserter handle 
saving and restoring them.

llvm-svn: 131745
 2011-05-20 18:39:33 +00:00
Akira Hatanaka
9736ffe863 Fix bug in which nodes that write to argument registers do not get glued with the JALR node. Patch by Sasa Stankovic 
llvm-svn: 131714
 2011-05-20 02:30:51 +00:00
Akira Hatanaka
bbb0805af2 Remove code that creates unnecessary frame objects. 
llvm-svn: 131711
 2011-05-20 01:45:06 +00:00
Akira Hatanaka
669a518bab Align i64 arguments to 64 bit boundaries. 
llvm-svn: 131668
 2011-05-19 20:29:48 +00:00
Akira Hatanaka
adf693ba31 Simplify CC_MipsO32 and merge it with CC_MipsO32_VarArgs. Patch by Sasa Stankovic. 
llvm-svn: 131657
 2011-05-19 18:06:05 +00:00
Eli Friedman
12e590e760 Make the logic for determining function alignment more explicit. No functionality change. 
llvm-svn: 131012
 2011-05-06 20:34:06 +00:00
Akira Hatanaka
e9a2d2a78f Prevent instructions using $gp from being placed between a jalr and the instruction that restores the clobbered $gp. 
llvm-svn: 130847
 2011-05-04 17:54:27 +00:00