[Sparc] Emit large negative adjustments to SP/FP with sethi+xor instead of sethi+or. This generates correct code for both sparc32 and sparc64.

llvm-svn: 195576

llvm-svn: 195575

[SparcV9]: Do not emit .register directives for global registers that are clobbered by calls but not used in the function itself.

llvm-svn: 195574

llvm-svn: 195573

This patch removes most of the trivial cases of weak vtables by pinning them to
a single object file. The memory leaks in this version have been fixed. Thanks
Alexey for pointing them out.

Differential Revision: http://llvm-reviews.chandlerc.com/D2068

Reviewed by Andy

llvm-svn: 195064

This change is incorrect. If you delete virtual destructor of both a base class
and a subclass, then the following code:
  Base *foo = new Child();
  delete foo;
will not cause the destructor for members of Child class. As a result, I observe
plently of memory leaks. Notable examples I investigated are:
ObjectBuffer and ObjectBufferStream, AttributeImpl and StringSAttributeImpl.

llvm-svn: 194997

This patch removes most of the trivial cases of weak vtables by pinning them to
a single object file.

Differential Revision: http://llvm-reviews.chandlerc.com/D2068

Reviewed by Andy

llvm-svn: 194865

llvm-svn: 194500

llvm-svn: 193957

llvm-svn: 193947

llvm-svn: 193941

llvm-svn: 193789

llvm-svn: 193627

We had a MCAsmInfoCOFF, but no common class for all the ELF MCAsmInfos before.

llvm-svn: 192760

This patch fixes PR17506.

llvm-svn: 192294

llvm-svn: 192179

llvm-svn: 192178

No new testcases. However, this patch makes all supported JIT testcases in 
test/ExecutionEngine  pass on Sparc.

llvm-svn: 192176

[Sparc] Do not hardcode nop in the delay slot of TLS_CALL. Use DelaySlotFiller to fill the delay slot instead.

llvm-svn: 192160

They haven't been used for a long time. Patch by MathOnNapkins.

llvm-svn: 192099

llvm-svn: 192056

This is required because i64 is a legal type but addxcc/subxcc reads icc carry bit, which are 32 bit conditional codes.

llvm-svn: 192054

addx/subx does not modify conditional codes whereas addxcc/subxx does.

llvm-svn: 192053

llvm-svn: 192023

llvm-svn: 192015

llvm-svn: 192006

llvm-svn: 191432

llvm-svn: 191180

[Sparc] Make SPARC instructions' encoding well defined such that TableGen can automatically generate code emitter.

llvm-svn: 191168

[Sparc] Clean up MOVcc instructions so that TableGen can encode them correctly. No functionality change intended.

llvm-svn: 191167

[Sparc] Clean up branch instructions, so that TableGen can encode branch conditions as well. No functionality change intended.

llvm-svn: 191166

Previously, the DAGISel function WalkChainUsers was spotting that it
had entered already-selected territory by whether a node was a
MachineNode (amongst other things). Since it's fairly common practice
to insert MachineNodes during ISelLowering, this was not the correct
check.

Looking around, it seems that other nodes get their NodeId set to -1
upon selection, so this makes sure the same thing happens to all
MachineNodes and uses that characteristic to determine whether we
should stop looking for a loop during selection.

This should fix PR15840.

llvm-svn: 191165

llvm-svn: 191164

llvm-svn: 191160

llvm-svn: 191158

llvm-svn: 191154

In sparc, setjmp stores only the registers %fp, %sp, %i7 and %o7. longjmp restores
the stack, and the callee-saved registers (all local/in registers: %i0-%i7, %l0-%l7)
using the stored %fp and register windows. However, this does not guarantee that the longjmp
will restore the registers, as they were when the setjmp was called. This is because these
registers may be clobbered after returning from setjmp, but before calling longjmp.

This patch prevents the registers %i0-%i5, %l0-l7 to live across the setjmp call using the register mask.  

llvm-svn: 190033

  This assertion is triggered because an integer constant is created with wrong
  type.

llvm-svn: 189948

llvm-svn: 189780

llvm-svn: 189768