result value stuff.  This eliminates a bunch of duplicated code and now
GetRetValueLocs is the sole place that decides where a value is returned.

llvm-svn: 34588

llvm-svn: 34587

function.  This function now uses GetRetValueLocs to determine *where*
the result values are located and concerns itself with *how* to pull the
values out.

llvm-svn: 34586

llvm-svn: 34585

registers out from the logic of *how* to return them.

This changes X86-64 to mark EAX live out when returning a 32-bit value,
where before it marked RAX liveout.

llvm-svn: 34582

llvm-svn: 34579

llvm-svn: 34578

llvm-svn: 34577

llvm-svn: 34576

llvm-svn: 34520

llvm-svn: 34519

llvm-svn: 34515

llvm-svn: 34488

llvm-svn: 34482

Add implicit uses of EBX to calls to ensure liveintervalanalysis does not treat
the GOT in EBX move as dead upon definition.
This should fix PR1207.

llvm-svn: 34470

llvm-svn: 34434

llvm-svn: 34428

Revert patches that caused the problem. Evan, please investigate and reapply
when you've discovered the problem.

llvm-svn: 34399

llvm-svn: 34376

Patch by Scott Michel.

llvm-svn: 34266

llvm-svn: 34204

llvm-svn: 34202

llvm-svn: 34072

definition of it into the CodeGen library. This is so that a backend doesn't
necessarily add in these writers if it doesn't use them (like in the lli
program).

llvm-svn: 34034

llvm-svn: 34029

X + C to promote LEA formation.  We would incorrectly apply it in some cases
(test) and miss it in others.

This fixes CodeGen/X86/2007-02-04-OrAddrMode.ll

llvm-svn: 33884

affected part is codegen of "memove" inside x86 backend. This fixes
PR1144

llvm-svn: 33752

confusion with external linkage types.

llvm-svn: 33663

llvm-svn: 33657

llvm-svn: 33639

address nodes.

llvm-svn: 33636

for "inreg" calls

llvm-svn: 33631

llvm-svn: 33622

What compiler are people using that accepts this code?

llvm-svn: 33603

1. New parameter attribute called 'inreg'. It has meaning "place this
parameter in registers, if possible". This is some generalization of
gcc's regparm(n) attribute. It's currently used only in X86-32 backend.
2. Completely rewritten CC handling/lowering code inside X86 backend.
Merged stdcall + c CCs and fastcall + fast CC.
3. Dropped CSRET CC. We cannot add struct return variant for each
target-specific CC (e.g. stdcall + csretcc and so on).
4. Instead of CSRET CC introduced 'sret' parameter attribute. Setting in
on first attribute has meaning 'This is hidden pointer to structure
return. Handle it gently'.
5. Fixed small bug in llvm-extract + add new feature to
FunctionExtraction pass, which relinks all internal-linkaged callees
from deleted function to external linkage. This will allow further
linking everything together.

NOTEs: 1. Documentation will be updated soon.
       2. llvm-upgrade should be improved to translate csret => sret.
          Before this, there will be some unexpected test fails.
llvm-svn: 33597

llvm-svn: 33585

llvm-svn: 33574

llvm-svn: 33571

for debugging and exception handling.

llvm-svn: 33550

llvm-svn: 33537