llvm-svn: 79094

The Link Register is volatile when using the 32-bit SVR4 ABI.
Make it possible to use the 64-bit SVR4 ABI.
Add non-volatile registers for the 64-bit SVR4 ABI.
Make sure r2 is a reserved register when using the 64-bit SVR4 ABI.
Update PPCFrameInfo for the 64-bit SVR4 ABI.
Add FIXME for 64-bit Darwin PPC.
Insert NOP instruction after direct function calls.
Emit official procedure descriptors.
Create TOC entries for GlobalAddress references.
Spill 64-bit non-volatile registers to the correct slots.
Only custom lower VAARG when using the 32-bit SVR4 ABI.
Use simple VASTART lowering for the 64-bit SVR4 ABI.

llvm-svn: 79091

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: 79084

llvm-svn: 79082

the class it defines.

llvm-svn: 79081

llvm-svn: 79080

support for globals going into the appropriate sections with the flags.

This hopefully finishes unbreaking the previous behavior that I broke before.

llvm-svn: 79079

them to null out the default section pointers.

llvm-svn: 79078

class which represents the XCore cp/dp section flags.  No functionality
change yet.

llvm-svn: 79077

"the current basic block".

llvm-svn: 79069

llvm-svn: 79068

llvm-svn: 79067

a terminal, not just when it's STDOUT_FILENO.

llvm-svn: 79066

llvm-svn: 79065

llvm-svn: 79064

llvm-svn: 79063

the pred list instead of a vector, saving a boat load of malloc/free's.

llvm-svn: 79062

the register save area if %al is 0. This avoids touching xmm
regsiters when they aren't actually used.

llvm-svn: 79061

llvm-svn: 79044

llvm-svn: 79039

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: 79032

 - We now print all of 403.gcc cleanly (llvm-mc -> 'as' as diffed to 'as'), minus two 
   'rep;movsl' instructions (which I missed before).

llvm-svn: 79031

llvm-svn: 79030

llvm-svn: 79029

llvm-svn: 79026

symbol as the symbol name itself, not the expression it was defined to. These
have different semantics due to the quirky .set behavior (which absolutizes an
expression that would otherwise be treated as a relocation).

llvm-svn: 79025

llvm-svn: 79024

llvm-svn: 79022

llvm-svn: 79017

llvm-svn: 79016

llvm-svn: 79015

llvm-svn: 79014

llvm-svn: 79012

llvm-svn: 79009

as well as the StringRef change.

llvm-svn: 79006

implemented so far) are recognized during legalization, it is easy to fall
back to the default expansion for other shuffles.

llvm-svn: 78995

scalar_to_vector.  Generate these VDUP nodes during legalization instead
of trying to recognize the pattern during selection.

llvm-svn: 78994