llvm-svn: 58838

llvm-svn: 58836

llvm-svn: 58835

llvm-svn: 58834

NB: This is likely to need more work.
llvm-svn: 58832

llvm-svn: 58830

llvm-svn: 58829

llvm-svn: 58828

llvm-svn: 58827

llvm-svn: 58826

(e.g. a bitfield test) narrow the load as much as possible.
The has the potential to avoid unnecessary partial-word
load-after-store conflicts, which cause stalls on several targets.
Also a size win on x86 (testb vs testl).

llvm-svn: 58825

  LLVM IR code and not in the selection DAG ISel. This is a cleaner solution.

- Fix the heuristic for determining if protectors are necessary. The previous
  one wasn't checking the proper type size.

llvm-svn: 58824

llvm-svn: 58823

llvm-svn: 58822

when simplify a vector. 

llvm-svn: 58820

in it, then emit stack protectors.

llvm-svn: 58819

llvm-svn: 58818

llvm-svn: 58816

llvm-svn: 58815

llvm-svn: 58814

Clarify documentation. A module pass MP can require a function paqss FP only if FP does not require any module pass.

llvm-svn: 58813

- Consolidate instruction formats.
- Other clean up.

llvm-svn: 58808

llvm-svn: 58807

llvm-svn: 58805

llvm-svn: 58801

llvm-svn: 58800

- Get rid of "HasStackProtector" in MachineFrameInfo.
- Modify intrinsics to tell which are doing what with memory.

llvm-svn: 58799

llvm-svn: 58798

llvm-svn: 58796

llvm-svn: 58793

"alloca".

llvm-svn: 58792

- stackprotector_prologue creates a stack object and stores the guard there.

- stackprotector_epilogue reads the stack guard from the stack position created
  by stackprotector_prologue.

- The PrologEpilogInserter was changed to make sure that the stack guard is
  first on the stack frame.

llvm-svn: 58791

llvm-svn: 58790

llvm-svn: 58789

llvm-svn: 58788

llvm-svn: 58787

llvm-svn: 58786

llvm-svn: 58783

llvm-svn: 58782

llvm-svn: 58781