Restore some "small section" support code, reverting my patch from r76936.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78894 91177308-0d34-0410-b5e6-96231b3b80d8

It's ok to spill a tGPR register as long as it's still allocated a low register.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78893 91177308-0d34-0410-b5e6-96231b3b80d8

fix a minor fixme.  When building with SL and later tools, the ".eh" symbols
don't need to be exported from the .o files.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78892 91177308-0d34-0410-b5e6-96231b3b80d8

When InstCombine simplifies a load -> extract element to gep -> load, place
the new load by the old load instead of by the extract element because
a store could have occurred between the load and extract element.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78891 91177308-0d34-0410-b5e6-96231b3b80d8

Change MCSectionELF to represent a section semantically instead of
syntactically as a string, very similiar to what Chris did with MachO.
The parsing support and validation is not introduced yet.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78890 91177308-0d34-0410-b5e6-96231b3b80d8

Simplify conditional.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78889 91177308-0d34-0410-b5e6-96231b3b80d8

Simplify and reduce indentation using early exits.

No intended functionality change.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78888 91177308-0d34-0410-b5e6-96231b3b80d8

DEBUGify some DOUTs.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78887 91177308-0d34-0410-b5e6-96231b3b80d8

Prune trailing whitespace.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78886 91177308-0d34-0410-b5e6-96231b3b80d8

Convert APint::{fromString,APInt,getBitsNeeded} to use StringRef.
 - Patch by Erick Tryzelaar, with some edits (and a bug fix) from me.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78885 91177308-0d34-0410-b5e6-96231b3b80d8

Add a comment to describe why vector shuffles are legalized to custom DAG nodes.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78884 91177308-0d34-0410-b5e6-96231b3b80d8

Add StringRef::front (with some small tweaks while I was in the area).
 - Patch by Erick Tryzelaar

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78883 91177308-0d34-0410-b5e6-96231b3b80d8

Use cast<> instead of dyn_cast<> in places where the type is known.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78881 91177308-0d34-0410-b5e6-96231b3b80d8

Update llvm-prof for ProfileInfo API changes.
 - Patch by Erick Tryzelaar

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78880 91177308-0d34-0410-b5e6-96231b3b80d8

Change the indentation for LLVM Assembly files from 1 tab to 2 spaces.
This is vaguely consistent with LLVM's own source code, but more
importantly it lets more lines stay within 80 columns.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78879 91177308-0d34-0410-b5e6-96231b3b80d8

Various AsmWriter output cleanups. Use WriteAsOperand instead of
PrintUnmangledNameSafely.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78878 91177308-0d34-0410-b5e6-96231b3b80d8

sink uniquing of sections out of MCContext into the ELF and PECOFF TLOF implementations.

MCContext no longer maintains a string -> section map.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78874 91177308-0d34-0410-b5e6-96231b3b80d8

Symbols with LinkerPrivateLinkage are weak.
This allows WebKit to build again.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78872 91177308-0d34-0410-b5e6-96231b3b80d8

make PIC16 unique its own sections instead of having mcontext do it.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78871 91177308-0d34-0410-b5e6-96231b3b80d8

add some comments: MCContext owns the MCSections, but it bump pointer allocates
them, so it doesn't have to explicitly free them.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78870 91177308-0d34-0410-b5e6-96231b3b80d8

reject invalid code like:
int x __attribute__((section("_foo, _bar"))) = 4;
int y __attribute__((section("_foo, _bar, 4byte_literals"))) = 1;

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78867 91177308-0d34-0410-b5e6-96231b3b80d8

implement support for uniquing MachO sections.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78866 91177308-0d34-0410-b5e6-96231b3b80d8

Now that numbered types have their number printed, it's no longer
interesting to print the number in a comment. Numbered instructions
don't need their number in a comment either.

Also, tidy up newline printing.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78865 91177308-0d34-0410-b5e6-96231b3b80d8

some compiler don't get string from TLOF.h implicitly or something.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78864 91177308-0d34-0410-b5e6-96231b3b80d8

reduce #includage

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78860 91177308-0d34-0410-b5e6-96231b3b80d8

Extend the AsmWriter to print unnamed numbered types as "%0 = type ..."
and unnamed numbered global variables as "@0 = global ...". Extend the
AsmParser to recognize these forms.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78859 91177308-0d34-0410-b5e6-96231b3b80d8

Mark the callsite intrinsic such that the opimizers know it's not dead.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78856 91177308-0d34-0410-b5e6-96231b3b80d8

Recognize Neon VDUP shuffles during legalization instead of selection.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78852 91177308-0d34-0410-b5e6-96231b3b80d8

Recognize Neon VREV shuffles during legalization instead of selection.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78850 91177308-0d34-0410-b5e6-96231b3b80d8

Add a new "SDTCisVec" SDTypeConstraint.  This complements the vAny type.
There have been a few times where I've wanted this but ended up leaving the
operand type unconstrained.  It is easy to add this now and should help
catch errors in the future.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78849 91177308-0d34-0410-b5e6-96231b3b80d8

This void is implicit in C++.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78848 91177308-0d34-0410-b5e6-96231b3b80d8

Fix counting of Post-RA scheduling stalls. Improve debug output.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78843 91177308-0d34-0410-b5e6-96231b3b80d8

Add some release notes about ARM v7 support and known problems.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78842 91177308-0d34-0410-b5e6-96231b3b80d8

Added RegisterCoalescer to required passes for PBQP.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78840 91177308-0d34-0410-b5e6-96231b3b80d8

Use WriteAsOperand to print BasicBlock names.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78838 91177308-0d34-0410-b5e6-96231b3b80d8

Make AsmWriter more careful with formatted_raw_ostream so that
it doesn't leave the underlying stream in unbuffered mode when
the stream was originally buffered.

Also, change WriteAsOperand back to plain raw_ostream. This
lets it work for either formatted_raw_ostream or plain
raw_ostream, so that it doesn't have to force a buffer flush
on a plain raw_ostream.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78837 91177308-0d34-0410-b5e6-96231b3b80d8

Add a GetBufferSize() member to raw_ostream and use it to
simplify some formatted_raw_ostream code.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78836 91177308-0d34-0410-b5e6-96231b3b80d8

Generate Neon VTBL and VTBX instructions from the corresponding intrinsics.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78835 91177308-0d34-0410-b5e6-96231b3b80d8

Use PadToColumn instead of tabs.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78834 91177308-0d34-0410-b5e6-96231b3b80d8

Fix a few more places to use PadToColumn instead of tabs. And fix
the basic block label printing to check whether a block has a name
before printing a comment character and whitespace for it.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78830 91177308-0d34-0410-b5e6-96231b3b80d8

PredCC is meant to be 2 bits wide, like PredCC1.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78829 91177308-0d34-0410-b5e6-96231b3b80d8

Use PadToColumn instead of tabs for aligning comments. Fix one place
that emitted unnecessary whitespace outside of VerboseAsm mode.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78828 91177308-0d34-0410-b5e6-96231b3b80d8

Enhance the InstrStage object to enable the specification of an Itinerary with overlapping stages. The default is to maintain the current behavior that the "next" stage immediately follows the previous one.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78827 91177308-0d34-0410-b5e6-96231b3b80d8

Add attempted idiotproofing comment per review.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78825 91177308-0d34-0410-b5e6-96231b3b80d8

improve win32 path support, patch by Baptiste Lepilleur!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78823 91177308-0d34-0410-b5e6-96231b3b80d8

Test for 78821, sort of.  While that bug is nondeterministic,
this test failed consistently on a Darwin build.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78822 91177308-0d34-0410-b5e6-96231b3b80d8

Fix a nondeterministic bug in APInt::roundToDouble;
when !isSingleWord() but getActiveBits() is small,
we were using the pointer value instead of the low
word of the integer value.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78821 91177308-0d34-0410-b5e6-96231b3b80d8

Fix whitespace expectations to match the new AsmWriter behavior.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78819 91177308-0d34-0410-b5e6-96231b3b80d8

Add catch block handling to SjLj exception handling.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78817 91177308-0d34-0410-b5e6-96231b3b80d8

Make LLVM Assembly dramatically easier to read by aligning the comments,
using formatted_raw_ostream's PadToColumn.

Before:

bb1:            ; preds = %bb
  %2 = sext i32 %i.01 to i64            ; <i64> [#uses=1]
  %3 = getelementptr double* %p, i64 %2         ; <double*> [#uses=1]
  %4 = load double* %3, align 8         ; <double> [#uses=1]
  %5 = fmul double %4, 1.100000e+00             ; <double> [#uses=1]
  %6 = sext i32 %i.01 to i64            ; <i64> [#uses=1]
  %7 = getelementptr double* %p, i64 %6         ; <double*> [#uses=1]

After:

bb1:                                        ; preds = %bb
  %2 = sext i32 %i.01 to i64                ; <i64> [#uses=1]
  %3 = getelementptr double* %p, i64 %2     ; <double*> [#uses=1]
  %4 = load double* %3, align 8             ; <double> [#uses=1]
  %5 = fmul double %4, 1.100000e+00         ; <double> [#uses=1]
  %6 = sext i32 %i.01 to i64                ; <i64> [#uses=1]
  %7 = getelementptr double* %p, i64 %6     ; <double*> [#uses=1]

Several tests required whitespace adjustments.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78816 91177308-0d34-0410-b5e6-96231b3b80d8

Fix TableGen warnings.  This partly reverts my previous change to this file,
leaving the mayLoad and mayStore settings around only the load/store
instructions where those can't be inferred from the patterns.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78815 91177308-0d34-0410-b5e6-96231b3b80d8

Fix a missing newline (now that Value*'s operator<< doesn't append one).

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78814 91177308-0d34-0410-b5e6-96231b3b80d8

change CBE to just get TAI now, instead of TM to get TAI.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78813 91177308-0d34-0410-b5e6-96231b3b80d8

Transform -X/C to X/-C, implementing a README.txt entry.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78812 91177308-0d34-0410-b5e6-96231b3b80d8

Optimize (x/C)*C to x if the division is exact.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78811 91177308-0d34-0410-b5e6-96231b3b80d8

Update instcombine's debug output to account for Value*'s operator<<
not appending its own newline.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78810 91177308-0d34-0410-b5e6-96231b3b80d8

Remove a bunch more now-unnecessary Context arguments.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78809 91177308-0d34-0410-b5e6-96231b3b80d8

Eliminate a bunch of now unnecessary explicit Context variables.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78808 91177308-0d34-0410-b5e6-96231b3b80d8

CMake: Added asm file to x86_64 MSVC build.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78807 91177308-0d34-0410-b5e6-96231b3b80d8

register naming cleanup (s/ip/r12/)

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78806 91177308-0d34-0410-b5e6-96231b3b80d8

Fix unit test on FreeBSD. We need to make sure there is enough space to save the pointer even if the memory returned from malloc was already aligned.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78805 91177308-0d34-0410-b5e6-96231b3b80d8

catch a typo and simplify call syntax

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78804 91177308-0d34-0410-b5e6-96231b3b80d8

here comes the CMAKE part on LLVM_COMPACT_SENTINELS; see also r78628 and r78661

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78803 91177308-0d34-0410-b5e6-96231b3b80d8

Change TargetAsmInfo to be constructed via TargetRegistry from a Target+Triple
pair instead of from a virtual method on TargetMachine.  This cuts the final
ties of TargetAsmInfo to TargetMachine, meaning that MC can now use
TargetAsmInfo.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78802 91177308-0d34-0410-b5e6-96231b3b80d8

one last (?) bad x86 triple test.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78801 91177308-0d34-0410-b5e6-96231b3b80d8

fix some pastos in triple lines.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78800 91177308-0d34-0410-b5e6-96231b3b80d8

the x86 version of the name is x86-64, not x86_64.  Handle this properly
in getArchTypeForLLVMName.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78799 91177308-0d34-0410-b5e6-96231b3b80d8

another bogus triple

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78798 91177308-0d34-0410-b5e6-96231b3b80d8

add support for mingw64 target triples.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78797 91177308-0d34-0410-b5e6-96231b3b80d8

fix another broken target triple.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78796 91177308-0d34-0410-b5e6-96231b3b80d8

fix an incorrect target triple.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78795 91177308-0d34-0410-b5e6-96231b3b80d8

Move immediate constant predicate templates from the Blackfin target to MathExtras.h

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78793 91177308-0d34-0410-b5e6-96231b3b80d8

add a couple of helpers to the Triple class for decoding
the darwin version string.  This should help consolidate
the variety of weird functions we have scattered around the
codebase that do stuff like this.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78792 91177308-0d34-0410-b5e6-96231b3b80d8

add nounwind

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78791 91177308-0d34-0410-b5e6-96231b3b80d8

Shrink Thumb2 movcc instructions.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78790 91177308-0d34-0410-b5e6-96231b3b80d8

CMake: Fixed sed script for translating library dependencies from
LibDeps.txt format to LLVMLibDeps.cmake format.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78789 91177308-0d34-0410-b5e6-96231b3b80d8

CMake: Localized dependency on Perl.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78788 91177308-0d34-0410-b5e6-96231b3b80d8

CMake: Rely on llvm_config again for obtaining the list of required
libraries for an executable.

Now LLVMConfig uses a new system for sorting library dependencies, as
the list of dependent libraries for each entry of FinalLibDeps.txt no
longer is topologically sorted.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78787 91177308-0d34-0410-b5e6-96231b3b80d8

CMake: updated library dependencies.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78786 91177308-0d34-0410-b5e6-96231b3b80d8

CMake: cmake/modules/LLVMLibDeps.cmake: Use unix line endings.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78785 91177308-0d34-0410-b5e6-96231b3b80d8

CMake: Moved hard-coded library dependencies to its own file.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78784 91177308-0d34-0410-b5e6-96231b3b80d8

Remove another Darwin assembler workaround.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78779 91177308-0d34-0410-b5e6-96231b3b80d8

80 col violation.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78778 91177308-0d34-0410-b5e6-96231b3b80d8

Remove an Darwin assembler workaround.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78777 91177308-0d34-0410-b5e6-96231b3b80d8

Shrink ADDS, ADC, RSB, and SUBS.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78776 91177308-0d34-0410-b5e6-96231b3b80d8

Add some comments to clarify the arguments to the vtbl and vtbx intrinsics.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78775 91177308-0d34-0410-b5e6-96231b3b80d8

Testcase for r78770.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78774 91177308-0d34-0410-b5e6-96231b3b80d8

This logic was accidentally inverted in r78767.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78773 91177308-0d34-0410-b5e6-96231b3b80d8

CMake: Do not install files with .tmp suffix.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78769 91177308-0d34-0410-b5e6-96231b3b80d8

CMake: Re-enabled build of llvm-config. Removed recursive invocation
of cmake.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78768 91177308-0d34-0410-b5e6-96231b3b80d8

Factor out the code for finding an available register for use
in breaking an anti-dependence into a separate function.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78767 91177308-0d34-0410-b5e6-96231b3b80d8

Test for llvm-gcc patch 78762.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78763 91177308-0d34-0410-b5e6-96231b3b80d8

Add missing chain operands for VLD* and VST* instructions.
Set "mayLoad" and "mayStore" on the load/store instructions.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78761 91177308-0d34-0410-b5e6-96231b3b80d8

Add contexts to some of the MVT APIs.  No functionality change yet, just the infrastructure work needed to get the contexts to where they need to be first.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78759 91177308-0d34-0410-b5e6-96231b3b80d8

llvm-gcc now emits inbounds for this getelementptr.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78758 91177308-0d34-0410-b5e6-96231b3b80d8

Simplify this code, and use an in-bounds GEP.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78755 91177308-0d34-0410-b5e6-96231b3b80d8

CMake: target triple for MSVC on Windows 64.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78753 91177308-0d34-0410-b5e6-96231b3b80d8

llvm-mc/AsmParser: Match hard coded registers (e.g. 'shldl %cl, %eax, %eax')

We now match all of 403.gcc (as emitted by clang). :)

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78750 91177308-0d34-0410-b5e6-96231b3b80d8

prune #include

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78749 91177308-0d34-0410-b5e6-96231b3b80d8

prune #includage.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78748 91177308-0d34-0410-b5e6-96231b3b80d8