llvm-svn: 53614

llvm-svn: 53613

allowed to canonicalize return values).

Add a test that checks if return value and function attributes are not removed.

llvm-svn: 53612

llvm-svn: 53611

again canonicalizes {i32} into i32 and {} into void.

llvm-svn: 53610

return value as a whole in deadargelim is really not needed now that we simply
rebuild the old return value and actually prevents some canonicalization from
taking place.

This revert stops deadargelim from changing {i32} into i32 for now, but I'll
fix that next.

llvm-svn: 53609

return values that are still (partially) live. Instead of updating all uses of
a call instruction after removing some elements, it now just rebuilds the
original struct (With undef gaps where the unused values were) and leaves it to
instcombine to clean this up.

The added testcase still fails currently, but this is due to instcombine which
isn't good enough yet. I will fix that part next.

llvm-svn: 53608

llvm-svn: 53607

only the liveness of partial return values (for functions returning a struct).
This is more explicit to prevent unwanted changes in the return value. 

In particular, deadargelim now canonicalizes a function returning {i32} to
returning i32 and {} to void, if the struct returned is not used in its
entirety, but only the single element is used.

llvm-svn: 53606

llvm-svn: 53605

In LegalizeDAG the value is zero-extended to
the new type before byte swapping.  It doesn't
matter how the extension is done since the new
bits are shifted off anyway after the swap, so
extend by any old rubbish bits.  This results
in the final assembler for the testcase being
one line shorter.

llvm-svn: 53604

llvm-svn: 53603

No change in functionality.

llvm-svn: 53602

and return values live for those functions. This doesn't change anything yet,
but prepares for the coming commits.

llvm-svn: 53601

llvm-svn: 53600

RetOrArg::getDescription() as const.

llvm-svn: 53599

llvm-svn: 53598

llvm-svn: 53592

method, to slightly simplify control flow.

llvm-svn: 53591

llvm-svn: 53590

I swear that didn't show up in svn diff...

llvm-svn: 53587

llvm-svn: 53586

llvm-svn: 53585

LinkOnce definitions have default scope, like weak definitions. Otherwise, the linker may not be able to match LinkOnce definition from one module with an exteranl reference from other module.

llvm-svn: 53580

llvm-svn: 53574

Patch by Nicolas Capens!

llvm-svn: 53571

the BB member to the current basic block after emitting
instructions.

llvm-svn: 53567

llvm-svn: 53564

don't have value names, so use print instead of getName() to get a
useful string.

llvm-svn: 53563

llvm-svn: 53562

llvm-svn: 53561

Remove support for this.

llvm-svn: 53559

non-power-of-two vectors.

llvm-svn: 53558

llvm-svn: 53557

than the vector element type.  Don't forget to
handle this when the insertion index is not a
constant.

llvm-svn: 53556

extending load of a vector.  Handle this case when
splitting vector loads.  I'm not completely sure
what is supposed to happen, but I think it means
hi should be set to undef.  LegalizeDAG does not
consider this case.

llvm-svn: 53555

stores of one-element vectors.  Also, neaten the
handling of INSERT_VECTOR_ELT when the inserted
type is larger than the vector element type.

llvm-svn: 53554

are used for passing huge immediates in inline ASM
from the front-end straight down to the ASM writer.
Of course this is a hack, but it is simple, limited
in scope, works in practice, and is what LegalizeDAG
does.

llvm-svn: 53553

Added HasABICall and HasAbsoluteCall (equivalent to gcc -mabicall and 
-mno-shared). HasAbsoluteCall is not implemented but HasABICall is the 
default for o32 ABI. Now, both should help into a more accurate 
relocation types implementation. 
Added IsLinux is needed to choose between asm directives.
Instruction name strings cleanup.
AsmPrinter improved.

llvm-svn: 53551

llvm-svn: 53549