llvm-svn: 79287

llvm-svn: 79272

llvm-svn: 79264

llvm-svn: 79262

more properly belong. This allows removing the front-end conditionalized
SJLJ code, and cleans up the generated IR considerably. All of the
infrastructure code (calling _Unwind_SjLj_Register/Unregister, etc) is
added by the SjLjEHPrepare pass.

llvm-svn: 79250

Extend the instruction itinerary model to include the ability to indicate the def and use cycle for each operand. This additional information is optional, so existing itineraries do not need to be changed.

llvm-svn: 79247

just remove the argument and replace it with 1.

llvm-svn: 79246

doing it directly.  This requires const'izing a bunch of stuff that
took sections, but this seems like the right semantic thing to do:
emitting a label to a section shouldn't mutate the MCSection object
itself, for example.

llvm-svn: 79227

llvm-svn: 79222

llvm-svn: 79195

Remove unused methods and make others private.

llvm-svn: 79194

If two uses of a CopyFromReg want different regclasses, first try a common
sub-class, then fall back on the copy emitted in AddRegisterOperand. There is
no need for an assert here. The cross-class joiner usually cleans up nicely.

llvm-svn: 79193

llvm-svn: 79150

llvm-svn: 79146

llvm-svn: 79133

It is legal for an inline asm operand to use an earlyclobber register if the
use operand is tied to the earlyclobber operand. The issue is discussed here:

  http://gcc.gnu.org/ml/gcc/1999-04n/msg00431.html

We should perhaps let only the machine code verifier worry about these finer
details. EarlyClobber operands are not really interesting to the scavenger.

This fixes PR4528 for the third time.

llvm-svn: 79122

In a naked function, the flag is never set and getPristineRegs() returns an
empty list. That means naked functions are able to clobber callee saved
registers, but that is the whole point of naked functions.

This fixes PR4716.

llvm-svn: 79096

llvm-svn: 79095

In the included test case, a stack load was not included in DistanceMap. That
caused TransferDeadness to ignore the instruction, leading to a scavenger
assert.

llvm-svn: 79090

llvm-svn: 79087

llvm-svn: 79068

llvm-svn: 79044

libcall. Take advantage of this in the ARM backend to rectify broken
choice of CC when hard float is in effect. PIC16 may want to see if
it could be of use in MakePIC16Libcall, which works unchanged.

Patch by Sandeep!

llvm-svn: 79033

llvm-svn: 79029

to print one instruction.

llvm-svn: 78985

llvm-svn: 78978

AsmPrinter instance (instead of just a FunctionPass)

llvm-svn: 78962

llvm-svn: 78955

llvm-svn: 78948

Use MCSectionELF methods as much as possible, removing some
ELFWriter methods which are now unused

llvm-svn: 78940

TargetAsmInfo. This eliminates a dependency on TargetMachine.h from
TargetRegistry.h, which technically was a layering violation.
 - Clients probably can only sensibly pass in the same TargetAsmInfo as the
   TargetMachine has, but there are only limited clients of this API.

llvm-svn: 78928

llvm-svn: 78913

So far these registers are simply tracked as if they were live-in.

llvm-svn: 78912

llvm-svn: 78911

llvm-svn: 78910

syntactically as a string, very similiar to what Chris did with MachO.
The parsing support and validation is not introduced yet.

llvm-svn: 78890

PrintUnmangledNameSafely.

llvm-svn: 78878

llvm-svn: 78843

llvm-svn: 78840

llvm-svn: 78838