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

This is the first of a series of patches that attempt to simplify handling of 
stack frame objects. 

llvm-svn: 131710

llvm-svn: 131668

llvm-svn: 131660

llvm-svn: 131657

llvm-svn: 131642

llvm-svn: 131233

Patch by Liu <proljc@gmail.com>!

llvm-svn: 131086

2. Remove unused function.
3. Correct indentation.

llvm-svn: 131028

llvm-svn: 131012

llvm-svn: 130850

Prevent instructions using $gp from being placed between a jalr and the instruction that restores the clobbered $gp.

llvm-svn: 130847

llvm-svn: 130774

llvm-svn: 130131

llvm-svn: 130120