Also teach this logic how to handle target specific shuffles if
needed, this is necessary while searching recursively for zeroed
scalar elements in vector shuffle operands.

llvm-svn: 112348

value should be copied to the corresponding shadow reg as well.
Patch by Cameron Esfahani!

llvm-svn: 112262

X86: Fix an encoding issue with LOCK_ADD64mr, which could lead to very hard to find miscompiles with the integrated assembler.

llvm-svn: 112250

to try to re-use scavenged frame index reference registers. rdar://8277890

llvm-svn: 112241

llvm-svn: 112218

llvm-svn: 112202

llvm-svn: 112171

apparently try to support.

llvm-svn: 112168

llvm-svn: 112128

llvm-svn: 112109

llvm-svn: 112090

llvm-svn: 112089

llvm-svn: 112060

Mark _alloca call as clobberring EFLAGS, otherwise some DCE might remove
other flags-clobberring stuff (e.g. cmp instructions) occuring after
_alloca call.

llvm-svn: 112034

llvm-svn: 112020

teach lowering to get target specific nodes for pshufd, emulating the same isel behavior for now, so we can pass all vector shuffle tests

llvm-svn: 112017

taking immediates.

llvm-svn: 111950

llvm-svn: 111947

for 'as' compatibility.

llvm-svn: 111945

need not be RIP-relative in small mode.

llvm-svn: 111917

llvm-svn: 111890

llvm-svn: 111837

llvm-svn: 111835

x86 int and int3 instructions.  Patch by Peter Housel!

llvm-svn: 111831

llvm-svn: 111813

it's COFF emitter which does not support differences of two symbols
(and needs to be fixed). GAS is pretty fine with code produced.

llvm-svn: 111801

llvm-svn: 111792

defaults to small pic code model.

llvm-svn: 111741

llvm-svn: 111728

comparison is in a different basic block from the branch. In such
cases, the comparison's operands may not have initialized virtual
registers available.

llvm-svn: 111709

llvm-svn: 111704

general idea here is to have a group of x86 target specific nodes which are
going to be selected during lowering and then directly matched in isel.

The commit includes the addition of those specific nodes and a *bunch* of
patterns, and incrementally we're going to switch between them and what we
have right now. Both the patterns and target specific nodes can change as
we move forward with this work.

llvm-svn: 111691

call and jumps.

llvm-svn: 111496

llvm-svn: 111494

llvm-svn: 111383

llvm-svn: 111343

llvm-svn: 111291

  - Do not clobber al during variadic calls, this is AMD64 ABI-only feature
  - Emit wincall64, where necessary
Patch by Cameron Esfahani!

llvm-svn: 111289

Patch by Cameron Esfahani!

llvm-svn: 111288

llvm-svn: 111185