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

llvm-svn: 111182

llvm-svn: 111173

clang says is unused.

llvm-svn: 111167

llvm-svn: 111155

llvm-svn: 111102

encoding is correct for the built-in assembler.

Based on a patch from Chris.

llvm-svn: 111083

llvm-svn: 111082

llvm-svn: 111073

llvm-svn: 111041

misanalysis and is undesirable.

llvm-svn: 111028

llvm-svn: 111022

llvm-svn: 111021

llvm-svn: 111001