Bug: rcpps can only folds a load if the address is 16-byte aligned. Fixed many 'ps' load folding patterns in X86InstrSSE.td which are missing the proper alignment checks.
Also fixed some 80 col. violations.

llvm-svn: 51462

g++.dg/abi/key2.C

llvm-svn: 51458

X86CodeEmitter should not set PIC style to None at initialization time. This will break codegen if relocation model is changed to PIC_ later.

llvm-svn: 51455

llvm-svn: 51435

llvm-svn: 51327

llvm-svn: 51291

$non_lazy_ptr's and $lazy_ptr's.

llvm-svn: 51277

llvm-svn: 51172

llvm-svn: 51165

Make use of vector load and store operations to implement memcpy, memmove, and memset. Currently only X86 target is taking advantage of these.

llvm-svn: 51140

are represented as "weak", but there are subtle differences
in some cases on Darwin, so we need both.  The intent
is that "common" will behave identically to "weak" unless
somebody changes their target to do something else.
No functional change as yet.

llvm-svn: 51118

llvm-svn: 51092

This eliminates the need for several awkward casts, including
the last dynamic_cast under lib/Target.

llvm-svn: 51091

llvm-svn: 51062

- Incorporate Chris' comment suggestion.

llvm-svn: 51061

llvm-svn: 51060

llvm-svn: 51057

- Correct a pasto.

llvm-svn: 51054

Instead of a vector load, shuffle and then extract an element. Load the element from address with an offset.
        pshufd $1, (%rdi), %xmm0
        movd %xmm0, %eax
=>
        movl 4(%rdi), %eax

llvm-svn: 51026

llvm-svn: 51020

llvm-svn: 51019

several things that were neither in an anonymous namespace nor static
but not intended to be global.

llvm-svn: 51017

Teach X86 a few more vsetcc patterns.  Custom lowering for unsupported ones is next.

llvm-svn: 51009

Xform bitconvert(build_pair(load a, load b)) to a single load if the load locations are at the right offset from each other.

llvm-svn: 51008

"is{Trivially,Really}ReMaterializable" methods.

llvm-svn: 51001

llvm-svn: 51000

encoding information.

llvm-svn: 50997

llvm-svn: 50991

in a non-void function that calls abort.

llvm-svn: 50969

llvm-svn: 50959

llvm-svn: 50940

than silently generate invalid code.

llvm-gcc does not currently use VAArgInst; it lowers va_arg in the
front-end.

llvm-svn: 50930

llvm-svn: 50929

llvm-svn: 50928

llvm-svn: 50922

Note, some of the code will be moved into target independent part of DAG combiner in a subsequent patch.

llvm-svn: 50918

llvm-svn: 50874

Handle vector move / load which zero the destination register top bits (i.e. movd, movq, movss (addr), movsd (addr)) with X86 specific dag combine.

llvm-svn: 50838

on x86-64 linux.  This causes no regressions on
32 bit linux and 32 bit ppc.  More tests pass
on 64 bit ppc with no regressions.  I didn't
turn on eh on 64 bit linux because the intrinsics
needed to compile the eh runtime aren't done
yet.  But if you turn it on and link with the
mainline runtime then eh seems to work fine
on x86-64 linux with this patch.  Thanks to
Dale for testing.  The main point of the patch
is that if you output that some object is
encoded using 4 bytes you had better not output
8 bytes for it: the patch makes everything
consistent.

llvm-svn: 50825

llvm-svn: 50681