Rename getAnalysisToUpdate to getAnalysisIfAvailable.

llvm-svn: 63198

Refactor code that adjusts the offsets of stack objects.

llvm-svn: 58829

Don't recalculate the stack position of the stack protector.

llvm-svn: 58815

- Rename stackprotector_{prologue,epilogue} to stackprotector_{create,check}.
- Get rid of "HasStackProtector" in MachineFrameInfo.
- Modify intrinsics to tell which are doing what with memory.

llvm

- Rename stackprotector_{prologue,epilogue} to stackprotector_{create,check}.
- Get rid of "HasStackProtector" in MachineFrameInfo.
- Modify intrinsics to tell which are doing what with memory.

llvm-svn: 58799

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Implement the stack protector stack accesses via intrinsics:

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

- stackprotector_epilogue reads the stack guard from the st

Implement the stack protector stack accesses via intrinsics:

- 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

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Revert r58489. It isn't correct for all cases.

llvm-svn: 58523

Don't skip over all "terminator" instructions when determining where to put the
callee-saved restore code. It could skip over conditional jumps
accidentally. Instead, just skip the "return" instructi

Don't skip over all "terminator" instructions when determining where to put the
callee-saved restore code. It could skip over conditional jumps
accidentally. Instead, just skip the "return" instructions.

llvm-svn: 58489

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Switch the MachineOperand accessors back to the short names like
isReg, etc., from isRegister, etc.

llvm-svn: 57006

Instead of setPreservesAll, just mark them preseving machine loop info and machine dominators.

llvm-svn: 56475

Mark several codegen passes as preserving all analysis.

llvm-svn: 56469

Tidy up several unbeseeming casts from pointer to intptr_t.

llvm-svn: 55779

Fix a comment to say nonnegative instead of positive.

llvm-svn: 53681

No need to align the stack if there are no stack
objects. Fixes a couple of tests on Linux.

llvm-svn: 52921

Fixes the last x86-64 test failure in compat.exp:
<16 x float> is 64-byte aligned (for some reason),
which gets us into the stack realignment code. The
computation changing FP-relative offsets to SP

Fixes the last x86-64 test failure in compat.exp:
<16 x float> is 64-byte aligned (for some reason),
which gets us into the stack realignment code. The
computation changing FP-relative offsets to SP-relative
was broken, assiging a spill temp to a location
also used for parameter passing. This
fixes it by rounding up the stack frame to a multiple
of the largest alignment (I concluded it wasn't fixable
without doing this, but I'm not very sure.)

llvm-svn: 52750

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Fixed bug in bad behavior in calculateFrameObjectOffsets,
the solution commited is different from the previous patch to
avoid int and unsigned comparison

llvm-svn: 51899

Use precomputed value, if any

llvm-svn: 50164

Cleanup

llvm-svn: 50160

detabify llvm, patch by Mike Stump!

llvm-svn: 48577

Miscellaneous clean-ups based on Evan's feedback:

- Cleaned up how the prologue-epilogue inserter loops over the instructions.
- Instead of restarting the processing of an instruction if we remove a

Miscellaneous clean-ups based on Evan's feedback:

- Cleaned up how the prologue-epilogue inserter loops over the instructions.
- Instead of restarting the processing of an instruction if we remove an
implicit kill, just update the end iterator and make sure that the iterator
isn't incremented.

llvm-svn: 47870

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Multiple instructions can be inserted when eliminating frame indexes. We need
the register scavenger to process all of those new instructions instead of just
the last one inserted.

llvm-svn: 47860

Don't track max alignment during stack object allocations since they can be deleted later. Let PEI compute it.

llvm-svn: 47668

Spiller now remove unused spill slots.

llvm-svn: 47657

Adjust the MaxAlignment for the special register scavenging spill slot.

llvm-svn: 47452

Rename MRegisterInfo to TargetRegisterInfo.

llvm-svn: 46930

SDIsel processes llvm.dbg.declare by recording the variable debug information descriptor and its corresponding stack frame index in MachineModuleInfo. This only works if the local variable is "homed"

SDIsel processes llvm.dbg.declare by recording the variable debug information descriptor and its corresponding stack frame index in MachineModuleInfo. This only works if the local variable is "homed" in the stack frame. It does not work for byval parameter, etc.
Added ISD::DECLARE node type to represent llvm.dbg.declare intrinsic. Now the intrinsic calls are lowered into a SDNode and lives on through out the codegen passes.
For now, since all the debugging information recording is done at isel time, when a ISD::DECLARE node is selected, it has the side effect of also recording the variable. This is a short term solution that should be fixed in time.

llvm-svn: 46659

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