callq is pcrelative

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98835 91177308-0d34-0410-b5e6-96231b3b80d8

Check if function names start with "llvm." before trying to lookup them up as
intrinsics.  The intrinsic lookup code assumes that this check has been done
and assumes the names are at least 6 characters long.  Valgrind complained
about this.  pr6638.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98831 91177308-0d34-0410-b5e6-96231b3b80d8

Fix comment.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98830 91177308-0d34-0410-b5e6-96231b3b80d8

Add the ability to "intern" FoldingSetNodeID data into a
BumpPtrAllocator-allocated region to allow it to be stored in a more
compact form and to avoid the need for a non-trivial destructor call.

Use this new mechanism in ScalarEvolution instead of
FastFoldingSetNode to avoid leaking memory in the case where a
FoldingSetNodeID uses heap storage, and to reduce overall memory
usage.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98829 91177308-0d34-0410-b5e6-96231b3b80d8

Adding MicroBlaze as an experimental backend in the release notes

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98824 91177308-0d34-0410-b5e6-96231b3b80d8

CMake: Add options for using static runtime on MSVC++ build.

Patch by Victor Zverovich!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98821 91177308-0d34-0410-b5e6-96231b3b80d8

Add an extra newline to separate PP directives from the contents

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98820 91177308-0d34-0410-b5e6-96231b3b80d8

Try to fix a valgrind error on 32 bit platforms: use %zu instead of %llu to format a size_t.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98819 91177308-0d34-0410-b5e6-96231b3b80d8

Avoid a problem in libc_freeres() seen on a linux-i686 buildbot when running
under valgrind:

==19577== Invalid free() / delete / delete[]
==19577==    at 0x4C9C866: free (vg_replace_malloc.c:325)
==19577==    by 0x5121104: ??? (in /lib/libc-2.10.2.so)
==19577==    by 0x4C97412: _vgnU_freeres (vg_preloaded.c:62)
==19577==    by 0x5041486: __run_exit_handlers (exit.c:93)
==19577==    by 0x50414FE: exit (exit.c:100)
==19577==    by 0x5028B5C: (below main) (libc-start.c:254)
==19577==  Address 0xffffffff is not stack'd, malloc'd or (recently) free'd
==19577==

Apparently this happens under certain versions of glibc, so valgrind provides
the --run-libc-freeres=no option to avoid calling freeres().  This may increase
the number of "still reachable" blocks valgrind reports, but we don't care
about those, while this error breaks the buildbots.

There are upstream bugs about this at
http://sourceware.org/bugzilla/show_bug.cgi?id=10610 and
http://bugs.kde.org/show_bug.cgi?id=167483, but they don't look likely to be
fixed.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98813 91177308-0d34-0410-b5e6-96231b3b80d8

Turning off post-ra scheduling for x86. It isn't a consistent win.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98810 91177308-0d34-0410-b5e6-96231b3b80d8

add a couple blurbs back

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98809 91177308-0d34-0410-b5e6-96231b3b80d8

Reapply r98755 with a thinko which miscompiled gengtype fixed.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98793 91177308-0d34-0410-b5e6-96231b3b80d8

MCValue: Change to holding MCSymbolRefExprs instead of MCSymbols, we will need this for accessing to symbol modifiers.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98791 91177308-0d34-0410-b5e6-96231b3b80d8

Add MCSymbol::isInSection.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98790 91177308-0d34-0410-b5e6-96231b3b80d8

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.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98789 91177308-0d34-0410-b5e6-96231b3b80d8

Revert "Change coalescer complexity from N^2 to N logN by changing one letter."

This reverts commit 98776. It broke the llvm-gcc boot strap.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98784 91177308-0d34-0410-b5e6-96231b3b80d8

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.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98780 91177308-0d34-0410-b5e6-96231b3b80d8

Debug info intrinsic does not intefer during tail call optimization.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98778 91177308-0d34-0410-b5e6-96231b3b80d8

Revert 98745 with respect to the addition of NEONFrm subformats for disassembly.
There is a better way coming up.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98777 91177308-0d34-0410-b5e6-96231b3b80d8

Change coalescer complexity from N^2 to N logN by changing one letter.

Remove ugly hack that aborted the coalescer before using N^2 time.

This affects functions with very complicated live intervals for physical
registers, i.e. functions with thousands of function calls.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98776 91177308-0d34-0410-b5e6-96231b3b80d8

Fixed a bug in the IT mask printing where T means the cond bit in the mask
matches that of Firstcond[0] and E means otherwise.  The Firstcond[0] is also
tagged in the Mask to facilitate Asm printing.  The disassembler also depends
on this arrangement.  This is similar to what's described in A2.5.2 ITSTATE.

Ran:

utils/lit/lit.py test/CodeGen/ARM test/CodeGen/Thumb test/CodeGen/Thumb2

successfully.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98775 91177308-0d34-0410-b5e6-96231b3b80d8

Refines 98745 so that it only contains the patch related to the output of the
addressing modes to omit the '+' from the assembler syntax #+/-<imm> or +/-<Rm>.

This patch removes the impl of printT2AddrModeImm8s4OffsetOperand() from
ARMAsmPrinter.cpp.  It is used by disassembler as of now.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98774 91177308-0d34-0410-b5e6-96231b3b80d8

Changed install_name for libEnhancedDisassembly.dylib on
Mac OS X to match current install location.  This has no
effect on other platforms.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98773 91177308-0d34-0410-b5e6-96231b3b80d8

remove arm mode workaround for ARM host

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98771 91177308-0d34-0410-b5e6-96231b3b80d8

Use llvm-gcc to build ARM when it's available

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98770 91177308-0d34-0410-b5e6-96231b3b80d8

Clean up whitespace.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98769 91177308-0d34-0410-b5e6-96231b3b80d8

Increase format field from 5 to 6 bits.  ARMII::FormMask was increased to 0x3f
in svn r74988 but the format field was never widened.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98768 91177308-0d34-0410-b5e6-96231b3b80d8

Initialize Size member to appease valgrind.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98763 91177308-0d34-0410-b5e6-96231b3b80d8

Revert 98755, which may be causing trouble.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98762 91177308-0d34-0410-b5e6-96231b3b80d8

feedback from Nick

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98761 91177308-0d34-0410-b5e6-96231b3b80d8

Change SCEVNAryExpr's operand array from a SmallVector to a plain
pointer and length, and allocate the arrays in ScalarEvolution's
BumpPtrAllocator, so that they get released when their owning
SCEV gets released. SCEVs are immutable, so they don't need to worry
about operand array resizing. This fixes a memory leak reported
in PR6637.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98755 91177308-0d34-0410-b5e6-96231b3b80d8

Remove an unnecessary (and misspelled) typedef.  Tweak whitespace.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98753 91177308-0d34-0410-b5e6-96231b3b80d8

missing include

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98752 91177308-0d34-0410-b5e6-96231b3b80d8

98745 contains something unrelated to the patch.
Remove it from ARMAddressingModes.h.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98751 91177308-0d34-0410-b5e6-96231b3b80d8

notes from evan

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98748 91177308-0d34-0410-b5e6-96231b3b80d8

Added sub-formats to the NeonI/NeonXI instructions to further refine the NEONFrm
instructions to help disassembly.

We also changed the output of the addressing modes to omit the '+' from the
assembler syntax #+/-<imm> or +/-<Rm>.  See, for example, A8.6.57/58/60.

And modified test cases to not expect '+' in +reg or #+num.  For example,

; CHECK:       ldr.w r9, [r7, #28]

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98745 91177308-0d34-0410-b5e6-96231b3b80d8

Testcase for r98728.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98744 91177308-0d34-0410-b5e6-96231b3b80d8

Fix EmitSectionOffset incorrect argument. DwarfDebug is emitting debug info so isEH is always false. This was hiding until now from compilers because of default arguments. This was hiding from dwarf debug info users because for most of the platform isAbsoluteEHSectionOffsets() is same as isAbsoluteDebugSectionOffsets(). But Chris found it while updating dwarf printer to use MC*.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98743 91177308-0d34-0410-b5e6-96231b3b80d8

several updates

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98742 91177308-0d34-0410-b5e6-96231b3b80d8

Make lit pay attention to --vg for tcl tests too, which makes it work on LLVM's
non-unit tests.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98741 91177308-0d34-0410-b5e6-96231b3b80d8

Fixed spelling errors.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98724 91177308-0d34-0410-b5e6-96231b3b80d8

Fix a false-positive memory leak in code using RemoveFileOnSignal().  Because
libstdc++'s std::string class points to the interior of an allocation, valgrind
reports strings still alive at program termination as possible leaks.  I didn't
use a ManagedStatic for this because System can't depend on Support.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98716 91177308-0d34-0410-b5e6-96231b3b80d8

combiner-aa too, what's its status?

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98715 91177308-0d34-0410-b5e6-96231b3b80d8

more chris scribble.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98714 91177308-0d34-0410-b5e6-96231b3b80d8

fix GetOrCreateTemporarySymbol to require a name, clients
should use CreateTempSymbol() if they don't care about the
name.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98712 91177308-0d34-0410-b5e6-96231b3b80d8

add a bunch of random and unformatted notes as I am reading
through tons of old commits.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98709 91177308-0d34-0410-b5e6-96231b3b80d8

add logo, comment out project info, they need to send updates
to get reincluded.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98706 91177308-0d34-0410-b5e6-96231b3b80d8

remove dead variable, patch by Nathan Howell!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98704 91177308-0d34-0410-b5e6-96231b3b80d8

Fix death tests in -Asserts builds.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98701 91177308-0d34-0410-b5e6-96231b3b80d8

Remove a check that can no longer be true, after r84803.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98694 91177308-0d34-0410-b5e6-96231b3b80d8

Revert 98683.  It is breaking something in the disassembler.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98692 91177308-0d34-0410-b5e6-96231b3b80d8

Fix liveintervals handling of dbg_value instructions.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98686 91177308-0d34-0410-b5e6-96231b3b80d8

Remove redundant writeback flag from ARM address mode 6.  Also remove the
optional register update argument, which is currently unused -- when we add
support for that, it can just be a separate operand.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98683 91177308-0d34-0410-b5e6-96231b3b80d8

reapply r98656 unmodified, which exposed the asmprinter not
handling constant unions.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98680 91177308-0d34-0410-b5e6-96231b3b80d8

Disambiguate the *_UPD  and * variants by specifying the writeback flag as 1.
This is for the disassembly work.

There are cases where this is not possible, for example, A8.6.53 LDM Encoding T1.
In such case, we'll use an adhoc approach to deduce the Opcode programmatically.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98679 91177308-0d34-0410-b5e6-96231b3b80d8

add asmprinter suport for unions, fixing Feature/unions.ll to actually
be doing something useful.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98677 91177308-0d34-0410-b5e6-96231b3b80d8

Ignore debug value instructions while analyzing BB for tail duplication.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98675 91177308-0d34-0410-b5e6-96231b3b80d8

Revert r98666 too; it's checkin-without-testing day!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98673 91177308-0d34-0410-b5e6-96231b3b80d8

str[r]chr returns its pointer argument so we cannot mark it as nocapture. Thanks to Duncan for spotting my mistake.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98671 91177308-0d34-0410-b5e6-96231b3b80d8

temporarily xfail

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98666 91177308-0d34-0410-b5e6-96231b3b80d8

Mark str[r]chr readonly.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98663 91177308-0d34-0410-b5e6-96231b3b80d8

Revert r98656, its breaking all over the place.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98662 91177308-0d34-0410-b5e6-96231b3b80d8

improve support for uniontype and ConstantUnion, patch by Tim Northover!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98656 91177308-0d34-0410-b5e6-96231b3b80d8

Add an rdar number to this test.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98654 91177308-0d34-0410-b5e6-96231b3b80d8

work around an MSVC2010 bug, PR6504

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98653 91177308-0d34-0410-b5e6-96231b3b80d8

Chris pointed out that producing undef here is wrong in
general.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98649 91177308-0d34-0410-b5e6-96231b3b80d8

Remove redundant writeback flag in ARM addressing mode 5.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98648 91177308-0d34-0410-b5e6-96231b3b80d8

Remove the writeback flag from ARM's address mode 4.  Now that we have separate
instructions for ld/st with writeback, the flag is completely redundant.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98643 91177308-0d34-0410-b5e6-96231b3b80d8

Fix unused variable warnings.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98642 91177308-0d34-0410-b5e6-96231b3b80d8

--- Reverse-merging r98637 into '.':
U    test/CodeGen/ARM/tls2.ll
U    test/CodeGen/ARM/arm-negative-stride.ll
U    test/CodeGen/ARM/2009-10-30.ll
U    test/CodeGen/ARM/globals.ll
U    test/CodeGen/ARM/str_pre-2.ll
U    test/CodeGen/ARM/ldrd.ll
U    test/CodeGen/ARM/2009-10-27-double-align.ll
U    test/CodeGen/Thumb2/thumb2-strb.ll
U    test/CodeGen/Thumb2/ldr-str-imm12.ll
U    test/CodeGen/Thumb2/thumb2-strh.ll
U    test/CodeGen/Thumb2/thumb2-ldr.ll
U    test/CodeGen/Thumb2/thumb2-str_pre.ll
U    test/CodeGen/Thumb2/thumb2-str.ll
U    test/CodeGen/Thumb2/thumb2-ldrh.ll
U    utils/TableGen/TableGen.cpp
U    utils/TableGen/DisassemblerEmitter.cpp
D    utils/TableGen/RISCDisassemblerEmitter.h
D    utils/TableGen/RISCDisassemblerEmitter.cpp
U    Makefile.rules
U    lib/Target/ARM/ARMInstrNEON.td
U    lib/Target/ARM/Makefile
U    lib/Target/ARM/AsmPrinter/ARMInstPrinter.cpp
U    lib/Target/ARM/AsmPrinter/ARMAsmPrinter.cpp
U    lib/Target/ARM/AsmPrinter/ARMInstPrinter.h
D    lib/Target/ARM/Disassembler
U    lib/Target/ARM/ARMInstrFormats.td
U    lib/Target/ARM/ARMAddressingModes.h
U    lib/Target/ARM/Thumb2ITBlockPass.cpp

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98640 91177308-0d34-0410-b5e6-96231b3b80d8

Initial ARM/Thumb disassembler check-in.  It consists of a tablgen backend
(RISCDisassemblerEmitter) which emits the decoder functions for ARM and Thumb,
and the disassembler core which invokes the decoder function and builds up the
MCInst based on the decoded Opcode.

Added sub-formats to the NeonI/NeonXI instructions to further refine the NEONFrm
instructions to help disassembly.

We also changed the output of the addressing modes to omit the '+' from the
assembler syntax #+/-<imm> or +/-<Rm>.  See, for example, A8.6.57/58/60.

And modified test cases to not expect '+' in +reg or #+num.  For example,

; CHECK:       ldr.w r9, [r7, #28]

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98637 91177308-0d34-0410-b5e6-96231b3b80d8

Stop using the old pre-UAL syntax for LDM/STM instruction suffixes.
This does not move entirely to UAL syntax, since the default "increment after"
suffix is empty but we still use "IA" for that.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98635 91177308-0d34-0410-b5e6-96231b3b80d8

more BranchInst tests

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98634 91177308-0d34-0410-b5e6-96231b3b80d8

NNT: Add -nouname option, so machine uniquing can occur across physical machines.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98633 91177308-0d34-0410-b5e6-96231b3b80d8

add BranchInst tests

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98632 91177308-0d34-0410-b5e6-96231b3b80d8

appease valgrind testers

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98628 91177308-0d34-0410-b5e6-96231b3b80d8

Check that P is not zero initialized.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98627 91177308-0d34-0410-b5e6-96231b3b80d8

add single return tests

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98625 91177308-0d34-0410-b5e6-96231b3b80d8

fix PR6589
adjusted unittest

I have added some doxygen to OptionalOperandTraits,
so hopefully there will be no confusion in the future.

Incidentally OptionalOperandTraits is not used any more (IIUC),
but the obvious client would be BranchInstr, and I plan
to rearrange it that way.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98624 91177308-0d34-0410-b5e6-96231b3b80d8

begin humbly with a repro of PR6589

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98623 91177308-0d34-0410-b5e6-96231b3b80d8

add support for bugpointing the integrated assembler.  Something like this
works for me: bugpoint Output/bisort.llvm.bc -run-llc-ia -safe-run-llc

This uses llc with the integrated assembler as the test compiler and llc
without it as the safe compiler.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98618 91177308-0d34-0410-b5e6-96231b3b80d8

fix the same bug on the x86-64 side of the fence.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98616 91177308-0d34-0410-b5e6-96231b3b80d8

fix the encoding of TAILJMPd.  This fixes Benchmarks/Olden/bisort
with the integrated assembler!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98615 91177308-0d34-0410-b5e6-96231b3b80d8

Avoid a memory leak in JITDebugRegisterer.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98612 91177308-0d34-0410-b5e6-96231b3b80d8

Add a testcase for the change in r98586.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98610 91177308-0d34-0410-b5e6-96231b3b80d8

Use getFirstTerminator().

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98604 91177308-0d34-0410-b5e6-96231b3b80d8

Forgot testcase for r98599.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98602 91177308-0d34-0410-b5e6-96231b3b80d8

When checking if something's killed, don't rely simply on whether it's marked as
"used outside of the block". If the block ends in a return, then it won't be
used outside of it.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98599 91177308-0d34-0410-b5e6-96231b3b80d8

don't form a RecordChild or CheckChildType for child #'s over 7, we don't
have enums for them.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98597 91177308-0d34-0410-b5e6-96231b3b80d8

Wrap a long line and add some parens to be consistent.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98596 91177308-0d34-0410-b5e6-96231b3b80d8

Fix the third (and last known) case of code update problems due
to LLVM IR changes with addr label weirdness.  In the testcase, we
generate references to the two bb's when codegen'ing the first
function:

_test1:                                 ## @test1
leaq Ltmp0(%rip), %rax
..
leaq Ltmp1(%rip), %rax

Then continue to codegen the second function where the blocks
get merged.  We're now smart enough to emit both labels, producing
this code:

_test_fun:                              ## @test_fun
## BB#0:                                ## %entry
Ltmp1:                                  ## Block address taken
Ltmp0:
## BB#1:                                ## %ret
movl $-1, %eax
ret

Rejoice.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98595 91177308-0d34-0410-b5e6-96231b3b80d8

MC: Allow modifiers in MCSymbolRefExpr, and eliminate X86MCTargetExpr.
 - 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.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98592 91177308-0d34-0410-b5e6-96231b3b80d8

Recognize code for doing vector gather/scatter index calculations with
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.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98588 91177308-0d34-0410-b5e6-96231b3b80d8

Translate "cc" clobber in ARM inline assembly to ARM::CCRRegisterClass.
Radar 7459078.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98586 91177308-0d34-0410-b5e6-96231b3b80d8

Skip debug info intrinsics.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98584 91177308-0d34-0410-b5e6-96231b3b80d8

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

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98583 91177308-0d34-0410-b5e6-96231b3b80d8

MC/Mach-O: Add MCSectionMachO::getType()

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98582 91177308-0d34-0410-b5e6-96231b3b80d8

Skip debug info intrinsics.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98581 91177308-0d34-0410-b5e6-96231b3b80d8

Now that the default for Darwin platforms is to place the LSDA into the TEXT
section, remove the target-specific code that performs this.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98580 91177308-0d34-0410-b5e6-96231b3b80d8

Implement support for the case when a reference to a addr-of-bb
label is generated, but then the block is deleted.  Since the
value is undefined, we just emit the label right after the entry
label of the function.  It might matter that the label is in the
same section as the function was afterall.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98579 91177308-0d34-0410-b5e6-96231b3b80d8