can't match or just have no testcases.  Will remove after 
confirmation from dan that they really are dead.

llvm-svn: 98930

llvm-svn: 98919

to input patterns, we can fix X86ISD::CMP and X86ISD::BT as taking
two inputs (which have to be the same type) and *returning an i32*.
This is how the SDNodes get made in the graph, but we weren't able
to model it this way due to deficiencies in the pattern language.

Now we can change things like this:

 def UCOM_FpIr80: FpI_<(outs), (ins RFP80:$lhs, RFP80:$rhs), CompareFP,
-                  [(X86cmp RFP80:$lhs, RFP80:$rhs),
-                   (implicit EFLAGS)]>; // CC = ST(0) cmp ST(i)
+                  [(set EFLAGS, (X86cmp RFP80:$lhs, RFP80:$rhs))]>;

and fix terrible crimes like this:

-def : Pat<(parallel (X86cmp GR8:$src1, 0), (implicit EFLAGS)),
+def : Pat<(X86cmp GR8:$src1, 0),
           (TEST8rr GR8:$src1, GR8:$src1)>;

This relies on matching the result of TEST8rr (which is EFLAGS, which is
an implicit def) to the result of X86cmp, an i32.

llvm-svn: 98903

llvm-svn: 98881

were missing it on some movq instructions and were not including the appropriate
PCrel bias.

llvm-svn: 98880

llvm-svn: 98864

llvm-svn: 98862

temporary workaround for matching inc/dec on x86_64 to the correct instruction.
 - This hack will eventually be replaced with a robust mechanism for handling
   matching instructions based on the available target features.

llvm-svn: 98858

llvm-svn: 98855

files that produce special relocation types where the 
linker changes movq's into lea's.

llvm-svn: 98839

llvm-svn: 98835

llvm-svn: 98819

llvm-svn: 98810

MC/Darwin: Add a new target hook for whether the target uses "reliable" symbol differences, basically whether the assembler should attempt to understand atoms when using scattered symbols.

Also, avoid some virtual call overhead.

llvm-svn: 98789

X86 address mode matching code MatchAddressRecursively does some aggressive hack which require doing a RAUW. It may end up deleting some SDNode up stream. It should avoid referencing deleted nodes.

llvm-svn: 98780

should use CreateTempSymbol() if they don't care about the
name.

llvm-svn: 98712

llvm-svn: 98616

with the integrated assembler!

llvm-svn: 98615

 - Although it would be nice to allow this decoupling, the assembler needs to be able to reason about MCSymbolRefExprs in too many places to make this viable. We can use a target specific encoding of the variant if this becomes an issue.
 - This patch also extends llvm-mc to support parsing of the modifiers, as opposed to lumping them in with the symbol.

llvm-svn: 98592

32-bit indices. Instead of shuffling each element out of the index vector,
when all indices are needed, just store the input vector to the stack and
load the elements out.

llvm-svn: 98588

MC/Mach-O/x86_64: Temporary labels in cstring sections require symbols (and external relocations, but we don't have x86_64 relocations yet).

llvm-svn: 98583

section, remove the target-specific code that performs this.

llvm-svn: 98580

llvm-svn: 98578

to is local to the translation unit, we need to place fill the value of that
symbol into the non-lazy pointer.

This should conclude all Darwin changes for placing the LSDA into the TEXT
section. There is some cleanup to do. I.e., there's no longer a special need for
target-specific code here. But that can come later.

llvm-svn: 98564

llvm-svn: 98561

llvm-svn: 98531

to re-instrument the code.  We depend on the system valgrind.h to
avoid adding a new license.

llvm-svn: 98529

fix the rest of the buildbot failures on non-x86 hosts.

llvm-svn: 98522

(at least) on non-x86 builders.

llvm-svn: 98520

llvm-svn: 98510

the operand type.

llvm-svn: 98507

PR4841.  Patch by Craig Smith!

llvm-svn: 98496

llvm-svn: 98494

MachineInstr -> MCInst.  This is what the assembler backend wants,
it relaxes from smaller to larger things.  This fixes rdar://7750815

llvm-svn: 98493

to get unique assembler temporary labels.

llvm-svn: 98489

contain an MCSymbol instead of a label index.

llvm-svn: 98482

with an MCSymbol instead of an immediate.

llvm-svn: 98481

llvm-svn: 98474

Do not force indirect tailcall through fixed registers: eax, r11. Add support to allow loads to be folded to tail call instructions.

llvm-svn: 98465

an MCSymbol.  Make the EH_LABEL MachineInstr hold its label
with an MCSymbol instead of ID.  Fix a bug in MMI.cpp which
would return labels named "Label4" instead of "label4".

llvm-svn: 98463