llvm-svn: 132718

llvm-svn: 132717

Add test case for C++ exception handling and fix the following mistakes in MipsFrameLowering::emitPrologue:

- cfi directives are not inserted at the right location or in the right order.
- The source MachineLocation for the cfi directive that changes the cfa register
  to $fp should be MachineLocation::VirtualFP.
- A PROLOG_LABEL that marks the beginning of cfi_offset directives for
  callee-saved register is emitted even when no callee-saved registers are
  saved.
- When a callee-saved double precision register is saved, two cfi_offset
  directives, one for each of the paired single precision registers, should be
  emitted.
 
 

llvm-svn: 132703

llvm-svn: 132448

llvm-svn: 132444

llvm-svn: 132355

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

Dynamic, Initial Exec and Local Exec TLS models.

Patch by Sasa Stankovic

llvm-svn: 132322

directives.

Fixes PR9826.

llvm-svn: 132317

and should probably be encoded as

DW_OP_reg 32 DW_OP_piece 4 DW_OP_reg 33

llvm-svn: 132274

in MipsRegisterInfo::getCalleeSavedRegs so that both registers paired for a
double precision register get saved.

 

llvm-svn: 132243

Need this to prevent emitting illegal conditional move instructions. 

llvm-svn: 132240

a function has any function calls.

llvm-svn: 132140

llvm-svn: 132136

llvm-svn: 132131

llvm-svn: 132127

llvm-svn: 132098

been defined in MipsInstrFPU.td.

llvm-svn: 132076

llvm-svn: 132074

llvm-svn: 132070

return 0 if there are no function calls made. 

llvm-svn: 132065

llvm-svn: 132063

llvm-svn: 132030

offsets that are larger than 0x10000.

llvm-svn: 132003

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

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

llvm-svn: 131928

llvm-svn: 131927

llvm-svn: 131922

in MipsFunctionInfo that are no longer used.

llvm-svn: 131917

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

llvm-svn: 131785

llvm-svn: 131784

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

passed in register or on the stack.

llvm-svn: 131758

llvm-svn: 131752

saving and restoring them.

llvm-svn: 131745

llvm-svn: 131724

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

llvm-svn: 131711