Commit Graph

4232 Commits

Author SHA1 Message Date
Rafael Espindola
b415e6b2f2 Centralize the handling of unique ids for temporary labels.
Before this patch code wanting to create temporary labels for a given entity
(function, cu, exception range, etc) had to keep its own counter to have stable
symbol names.

createTempSymbol would still add a suffix to make sure a new symbol was always
returned, but it kept a single counter. Because of that, if we were to use
just createTempSymbol("cu_begin"), the label could change from cu_begin42 to
cu_begin43 because some other code started using temporary labels.

Simplify this by just keeping one counter per prefix and removing the various
specialized counters.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@232535 91177308-0d34-0410-b5e6-96231b3b80d8
2015-03-17 20:07:06 +00:00
Toma Tabacu
f28b151b52 [mips] [IAS] Add support for the XOR $reg,imm pseudo-instruction.
Summary:
This adds a MipsInstAlias which expands to XORi $reg,$reg,imm. For example, "xor $6, 0x3A" should be expanded to "xori $6, $6, 58".
This should work for all MIPS ISAs.

Reviewers: dsanders

Reviewed By: dsanders

Subscribers: llvm-commits

Differential Revision: http://reviews.llvm.org/D8284

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@232473 91177308-0d34-0410-b5e6-96231b3b80d8
2015-03-17 13:17:44 +00:00
Renato Golin
ce1f16421f [ARM] Add support for ARMV6K subtarget (LLVM)
ARMv6K is another layer between ARMV6 and ARMV6T2. This is the LLVM
side of the changes.

ARMV6 family LLVM implementation.

+-------------------------------------+
| ARMV6                               |
+----------------+--------------------+
| ARMV6M (thumb) | ARMV6K (arm,thumb) | <- From ARMV6K and ARMV6M processors
+----------------+--------------------+    have support for hint instructions
| ARMV6T2 (arm,thumb,thumb2)          |    (SEV/WFE/WFI/NOP/YIELD). They can
+-------------------------------------+    be either real or default to NOP.
| ARMV7 (arm,thumb,thumb2)            |    The two processors also use
+-------------------------------------+    different encoding for them.

Patch by Vinicius Tinti.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@232468 91177308-0d34-0410-b5e6-96231b3b80d8
2015-03-17 11:55:28 +00:00
Ahmed Bougacha
4a2d95826e Add a bunch of CHECK missing colons in tests. NFC.
Some wouldn't pass;  fixed most, the rest will be fixed separately.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@232239 91177308-0d34-0410-b5e6-96231b3b80d8
2015-03-14 01:43:57 +00:00
David Blaikie
5a70dd1d82 [opaque pointer type] Add textual IR support for explicit type parameter to gep operator
Similar to gep (r230786) and load (r230794) changes.

Similar migration script can be used to update test cases, which
successfully migrated all of LLVM and Polly, but about 4 test cases
needed manually changes in Clang.

(this script will read the contents of stdin and massage it into stdout
- wrap it in the 'apply.sh' script shown in previous commits + xargs to
apply it over a large set of test cases)

import fileinput
import sys
import re

rep = re.compile(r"(getelementptr(?:\s+inbounds)?\s*\()((<\d*\s+x\s+)?([^@]*?)(|\s*addrspace\(\d+\))\s*\*(?(3)>)\s*)(?=$|%|@|null|undef|blockaddress|getelementptr|addrspacecast|bitcast|inttoptr|zeroinitializer|<|\[\[[a-zA-Z]|\{\{)", re.MULTILINE | re.DOTALL)

def conv(match):
  line = match.group(1)
  line += match.group(4)
  line += ", "
  line += match.group(2)
  return line

line = sys.stdin.read()
off = 0
for match in re.finditer(rep, line):
  sys.stdout.write(line[off:match.start()])
  sys.stdout.write(conv(match))
  off = match.end()
sys.stdout.write(line[off:])

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@232184 91177308-0d34-0410-b5e6-96231b3b80d8
2015-03-13 18:20:45 +00:00
Elena Demikhovsky
3209a40889 AVX-512: Added encoding tests for VPROR, VPROL instructions,
fixed opcode.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@232018 91177308-0d34-0410-b5e6-96231b3b80d8
2015-03-12 07:28:41 +00:00
Juergen Ributzka
9814f7b92c Add the "vbroadcasti128" instruction back.
This is a follow-up to r231182. This adds the "vbroadcasti128" instruction
back, but without the intrinsic mapping. Also add a test to check the
instriction encoding.

This is related to rdar://problem/18742778.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@231945 91177308-0d34-0410-b5e6-96231b3b80d8
2015-03-11 17:29:03 +00:00
Elena Demikhovsky
13cc6f2b6e AVX-512: Added SKX forms of shift instructions.
Added rotation instructions, encoding only.
Added encoding tests for all these forms.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@231916 91177308-0d34-0410-b5e6-96231b3b80d8
2015-03-11 10:25:42 +00:00
Rafael Espindola
a5415bcc57 Don't print labels that on ELF are never used.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@231904 91177308-0d34-0410-b5e6-96231b3b80d8
2015-03-11 04:20:31 +00:00
Rafael Espindola
658236dec2 Print section start labels when first switching to the section.
This is less brittle and avoids polluting the start of the file with every
debug section.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@231898 91177308-0d34-0410-b5e6-96231b3b80d8
2015-03-11 00:51:37 +00:00
Nemanja Ivanovic
dc12298109 Add support for part-word atomics for PPC
http://reviews.llvm.org/D8090#inline-67337


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@231843 91177308-0d34-0410-b5e6-96231b3b80d8
2015-03-10 20:51:07 +00:00
Bruno Cardoso Lopes
84e6358ea0 [AsmPrinter][TLOF] Reintroduce AArch64 test
Follow up from r231505.

Fix the non-determinism by using a MapVector and reintroduce the AArch64
testcase. Defer deleting the got candidates up to the end and remove
them in a bulk, avoiding linear time removal of each element.

Thanks to Renato Golin for trying it out on other platforms.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@231830 91177308-0d34-0410-b5e6-96231b3b80d8
2015-03-10 20:05:23 +00:00
Bruno Cardoso Lopes
664388cd2a [AsmPrinter][TLOF] Remove AArch64 test to appease buildbots
Follow up from r231497. Using XFAIL would still trigger fail on some
buildbots. Will re-introduce it as soon as I have a fix.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@231505 91177308-0d34-0410-b5e6-96231b3b80d8
2015-03-06 19:42:18 +00:00
Bruno Cardoso Lopes
83f6fece72 [AsmPrinter][TLOF] XFAIL AArch64 test to appease buildbots
The checking for extgotequiv and localgotequiv rely on the emission
order, which is not guaranteed because we use DenseMap to hold the GOT
equivalents. XFAIL this now until I get time to use MapVector and test
out the solution. In the meantime, appease buildbots.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@231497 91177308-0d34-0410-b5e6-96231b3b80d8
2015-03-06 18:38:42 +00:00
Bruno Cardoso Lopes
653997ebc2 [AsmPrinter][TLOF] Make AArch64 test a bit more flexible
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@231481 91177308-0d34-0410-b5e6-96231b3b80d8
2015-03-06 15:11:41 +00:00
Bruno Cardoso Lopes
9dda04db93 [AsmPrinter][TLOF] Split tests and move to appropriate directories
Follow up from r231474 and 231475 to appease buildbots

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@231480 91177308-0d34-0410-b5e6-96231b3b80d8
2015-03-06 14:41:56 +00:00
Bruno Cardoso Lopes
dfc6383227 [AsmPrinter][TLOF] 32-bit MachO support for replacing GOT equivalents
Add MachO 32-bit (i.e. arm and x86) support for replacing global GOT equivalent
symbol accesses. Unlike 64-bit targets, there's no GOTPCREL relocation, and
access through a non_lazy_symbol_pointers section is used instead.

-- before

    _extgotequiv:
       .long _extfoo

    _delta:
       .long _extgotequiv-_delta

-- after

    _delta:
       .long L_extfoo$non_lazy_ptr-_delta

       .section __IMPORT,__pointers,non_lazy_symbol_pointers
    L_extfoo$non_lazy_ptr:
       .indirect_symbol _extfoo
       .long 0

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@231475 91177308-0d34-0410-b5e6-96231b3b80d8
2015-03-06 13:49:05 +00:00
Bruno Cardoso Lopes
66aa390799 [AsmPrinter][TLOF] ARM64 MachO support for replacing GOT equivalents
Follow up r230264 and add ARM64 support for replacing global GOT
equivalent symbol accesses by references to the GOT entry for the final
symbol instead, example:

-- before

   .globl  _foo
  _foo:
   .long   42

   .globl  _gotequivalent
  _gotequivalent:
   .quad   _foo

   .globl  _delta
  _delta:
   .long   _gotequivalent-_delta

-- after

   .globl  _foo
  _foo:
   .long   42

   .globl  _delta
  Ltmp3:
   .long _foo@GOT-Ltmp3

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@231474 91177308-0d34-0410-b5e6-96231b3b80d8
2015-03-06 13:48:45 +00:00
Toma Tabacu
25c2850952 [mips] [IAS] Add missing constraints and improve testing for the .module directive.
Summary:
None of the .set directives can be used before the .module directives. The .set mips0/pop/push were not triggering this constraint.
Also added testing for all the other implemented directives which are supposed to trigger this constraint.

Reviewers: dsanders

Reviewed By: dsanders

Subscribers: llvm-commits

Differential Revision: http://reviews.llvm.org/D7140

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@231465 91177308-0d34-0410-b5e6-96231b3b80d8
2015-03-06 12:15:12 +00:00
David Majnemer
ee711b5b16 X86: Form IMGREL relocations for LLVM Functions
We supported forming IMGREL relocations from ConstantExprs involving
__ImageBase if the minuend was a GlobalVariable.  Extend this
functionality to all GlobalObjects.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@231456 91177308-0d34-0410-b5e6-96231b3b80d8
2015-03-06 08:11:32 +00:00
Rafael Espindola
236aa85873 Expand variables when evaluating absolute expressions.
This allows for variables to be used in .size.
This matches gnu AS functionality.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@231295 91177308-0d34-0410-b5e6-96231b3b80d8
2015-03-04 22:03:21 +00:00
Nemanja Ivanovic
b69d556c37 Add LLVM support for PPC cryptography builtins
Review: http://reviews.llvm.org/D7955


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@231285 91177308-0d34-0410-b5e6-96231b3b80d8
2015-03-04 20:44:33 +00:00
Davide Italiano
8667ab752e [MC][Target] Implement support for R_X86_64_SIZE{32,64}.
Differential Revision:	D7990
Reviewed by:	rafael, majnemer


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@231216 91177308-0d34-0410-b5e6-96231b3b80d8
2015-03-04 06:49:39 +00:00
Kit Barton
40057e8ee8 Add the following 64-bit vector integer arithmetic instructions added in POWER8:
vaddudm
vsubudm
vmulesw
vmulosw
vmuleuw
vmulouw
vmuluwm
vmaxsd
vmaxud
vminsd
vminud
vcmpequd
vcmpequd.
vcmpgtsd
vcmpgtsd.
vcmpgtud
vcmpgtud.
vrld
vsld
vsrd
vsrad

Phabricator review: http://reviews.llvm.org/D7959


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@231115 91177308-0d34-0410-b5e6-96231b3b80d8
2015-03-03 19:55:45 +00:00
Duncan P. N. Exon Smith
b056aa798d DebugInfo: Move new hierarchy into place
Move the specialized metadata nodes for the new debug info hierarchy
into place, finishing off PR22464.  I've done bootstraps (and all that)
and I'm confident this commit is NFC as far as DWARF output is
concerned.  Let me know if I'm wrong :).

The code changes are fairly mechanical:

  - Bumped the "Debug Info Version".
  - `DIBuilder` now creates the appropriate subclass of `MDNode`.
  - Subclasses of DIDescriptor now expect to hold their "MD"
    counterparts (e.g., `DIBasicType` expects `MDBasicType`).
  - Deleted a ton of dead code in `AsmWriter.cpp` and `DebugInfo.cpp`
    for printing comments.
  - Big update to LangRef to describe the nodes in the new hierarchy.
    Feel free to make it better.

Testcase changes are enormous.  There's an accompanying clang commit on
its way.

If you have out-of-tree debug info testcases, I just broke your build.

  - `upgrade-specialized-nodes.sh` is attached to PR22564.  I used it to
    update all the IR testcases.
  - Unfortunately I failed to find way to script the updates to CHECK
    lines, so I updated all of these by hand.  This was fairly painful,
    since the old CHECKs are difficult to reason about.  That's one of
    the benefits of the new hierarchy.

This work isn't quite finished, BTW.  The `DIDescriptor` subclasses are
almost empty wrappers, but not quite: they still have loose casting
checks (see the `RETURN_FROM_RAW()` macro).  Once they're completely
gutted, I'll rename the "MD" classes to "DI" and kill the wrappers.  I
also expect to make a few schema changes now that it's easier to reason
about everything.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@231082 91177308-0d34-0410-b5e6-96231b3b80d8
2015-03-03 17:24:31 +00:00
Elena Demikhovsky
53fb369429 AVX-512: Add assembly parser support for Rounding mode
By Asaf Badouh <asaf.badouh@intel.com>



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@230962 91177308-0d34-0410-b5e6-96231b3b80d8
2015-03-02 15:00:34 +00:00
Craig Topper
a2d7ca4495 [X86] Fix diassembler crash on AVX512 cmpps/cmppd with immediate that doesn't fit in 5-bits. Fixes PR22743.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@230924 91177308-0d34-0410-b5e6-96231b3b80d8
2015-03-02 00:22:29 +00:00
David Blaikie
7c9c6ed761 [opaque pointer type] Add textual IR support for explicit type parameter to load instruction
Essentially the same as the GEP change in r230786.

A similar migration script can be used to update test cases, though a few more
test case improvements/changes were required this time around: (r229269-r229278)

import fileinput
import sys
import re

pat = re.compile(r"((?:=|:|^)\s*load (?:atomic )?(?:volatile )?(.*?))(| addrspace\(\d+\) *)\*($| *(?:%|@|null|undef|blockaddress|getelementptr|addrspacecast|bitcast|inttoptr|\[\[[a-zA-Z]|\{\{).*$)")

for line in sys.stdin:
  sys.stdout.write(re.sub(pat, r"\1, \2\3*\4", line))

Reviewers: rafael, dexonsmith, grosser

Differential Revision: http://reviews.llvm.org/D7649

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@230794 91177308-0d34-0410-b5e6-96231b3b80d8
2015-02-27 21:17:42 +00:00
David Blaikie
198d8baafb [opaque pointer type] Add textual IR support for explicit type parameter to getelementptr instruction
One of several parallel first steps to remove the target type of pointers,
replacing them with a single opaque pointer type.

This adds an explicit type parameter to the gep instruction so that when the
first parameter becomes an opaque pointer type, the type to gep through is
still available to the instructions.

* This doesn't modify gep operators, only instructions (operators will be
  handled separately)

* Textual IR changes only. Bitcode (including upgrade) and changing the
  in-memory representation will be in separate changes.

* geps of vectors are transformed as:
    getelementptr <4 x float*> %x, ...
  ->getelementptr float, <4 x float*> %x, ...
  Then, once the opaque pointer type is introduced, this will ultimately look
  like:
    getelementptr float, <4 x ptr> %x
  with the unambiguous interpretation that it is a vector of pointers to float.

* address spaces remain on the pointer, not the type:
    getelementptr float addrspace(1)* %x
  ->getelementptr float, float addrspace(1)* %x
  Then, eventually:
    getelementptr float, ptr addrspace(1) %x

Importantly, the massive amount of test case churn has been automated by
same crappy python code. I had to manually update a few test cases that
wouldn't fit the script's model (r228970,r229196,r229197,r229198). The
python script just massages stdin and writes the result to stdout, I
then wrapped that in a shell script to handle replacing files, then
using the usual find+xargs to migrate all the files.

update.py:
import fileinput
import sys
import re

ibrep = re.compile(r"(^.*?[^%\w]getelementptr inbounds )(((?:<\d* x )?)(.*?)(| addrspace\(\d\)) *\*(|>)(?:$| *(?:%|@|null|undef|blockaddress|getelementptr|addrspacecast|bitcast|inttoptr|\[\[[a-zA-Z]|\{\{).*$))")
normrep = re.compile(       r"(^.*?[^%\w]getelementptr )(((?:<\d* x )?)(.*?)(| addrspace\(\d\)) *\*(|>)(?:$| *(?:%|@|null|undef|blockaddress|getelementptr|addrspacecast|bitcast|inttoptr|\[\[[a-zA-Z]|\{\{).*$))")

def conv(match, line):
  if not match:
    return line
  line = match.groups()[0]
  if len(match.groups()[5]) == 0:
    line += match.groups()[2]
  line += match.groups()[3]
  line += ", "
  line += match.groups()[1]
  line += "\n"
  return line

for line in sys.stdin:
  if line.find("getelementptr ") == line.find("getelementptr inbounds"):
    if line.find("getelementptr inbounds") != line.find("getelementptr inbounds ("):
      line = conv(re.match(ibrep, line), line)
  elif line.find("getelementptr ") != line.find("getelementptr ("):
    line = conv(re.match(normrep, line), line)
  sys.stdout.write(line)

apply.sh:
for name in "$@"
do
  python3 `dirname "$0"`/update.py < "$name" > "$name.tmp" && mv "$name.tmp" "$name"
  rm -f "$name.tmp"
done

The actual commands:
From llvm/src:
find test/ -name *.ll | xargs ./apply.sh
From llvm/src/tools/clang:
find test/ -name *.mm -o -name *.m -o -name *.cpp -o -name *.c | xargs -I '{}' ../../apply.sh "{}"
From llvm/src/tools/polly:
find test/ -name *.ll | xargs ./apply.sh

After that, check-all (with llvm, clang, clang-tools-extra, lld,
compiler-rt, and polly all checked out).

The extra 'rm' in the apply.sh script is due to a few files in clang's test
suite using interesting unicode stuff that my python script was throwing
exceptions on. None of those files needed to be migrated, so it seemed
sufficient to ignore those cases.

Reviewers: rafael, dexonsmith, grosser

Differential Revision: http://reviews.llvm.org/D7636

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@230786 91177308-0d34-0410-b5e6-96231b3b80d8
2015-02-27 19:29:02 +00:00
Mehdi Amini
26d628d6ce Change the fast-isel-abort option from bool to int to enable "levels"
Summary:
Currently fast-isel-abort will only abort for regular instructions,
and just warn for function calls, terminators, function arguments.
There is already fast-isel-abort-args but nothing for calls and
terminators.

This change turns the fast-isel-abort options into an integer option,
so that multiple levels of strictness can be defined.
This will help no being surprised when the "abort" option indeed does
not abort, and enables the possibility to write test that verifies
that no intrinsics are forgotten by fast-isel.

Reviewers: resistor, echristo

Subscribers: jfb, llvm-commits

Differential Revision: http://reviews.llvm.org/D7941

From: Mehdi Amini <mehdi.amini@apple.com>

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@230775 91177308-0d34-0410-b5e6-96231b3b80d8
2015-02-27 18:32:11 +00:00
Frederic Riss
09e8018e14 [MC] Use the non-EH register mapping in the debug_frame section.
On 32bits x86 Darwin, the register mappings for the eh_frane and
debug_frame sections are different. Thus the same CFI instructions
should result in different registers in the object file. The
problem isn't target specific though, but it requires that the
mappings for EH register numbers be different from the standard
Dwarf one.

The patch looks a bit clumsy. LLVM uses the EH mapping as
canonical for everything frame related. Thus we need to do a
double conversion EH -> LLVM -> Non-EH, when emitting the
debug_frame section.

Fixes PR22363.

Differential Revision: http://reviews.llvm.org/D7593

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@230670 91177308-0d34-0410-b5e6-96231b3b80d8
2015-02-26 19:48:07 +00:00
Vladimir Medic
d89ac8f158 Replace obsolete -mattr=n64 command line option with -target-abi=n64. No functional changes.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@230628 91177308-0d34-0410-b5e6-96231b3b80d8
2015-02-26 12:29:48 +00:00
Vladimir Medic
d692ee81e8 [MIPS]Multiple and add instructions for Mips are currently available in mips32r2/mips64r2 and later but should also be available in mips4, mips5, and mips64. This patch fixes the requested features and updates the corresponding test files.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@230500 91177308-0d34-0410-b5e6-96231b3b80d8
2015-02-25 15:24:37 +00:00
Hal Finkel
f8d179ba76 [PowerPC] Add support for the QPX vector instruction set
This adds support for the QPX vector instruction set, which is used by the
enhanced A2 cores on the IBM BG/Q supercomputers. QPX vectors are 256 bytes
wide, holding 4 double-precision floating-point values. Boolean values, modeled
here as <4 x i1> are actually also represented as floating-point values
(essentially  { -1, 1 } for { false, true }). QPX shares many features with
Altivec and VSX, but is distinct from both of them. One major difference is
that, instead of adding completely-separate vector registers, QPX vector
registers are extensions of the scalar floating-point registers (lane 0 is the
corresponding scalar floating-point value). The operations supported on QPX
vectors mirrors that supported on the scalar floating-point values (with some
additional ones for permutations and logical/comparison operations).

I've been maintaining this support out-of-tree, as part of the bgclang project,
for several years. This is not the entire bgclang patch set, but is most of the
subset that can be cleanly integrated into LLVM proper at this time. Adding
this to the LLVM backend is part of my efforts to rebase bgclang to the current
LLVM trunk, but is independently useful (especially for codes that use LLVM as
a JIT in library form).

The assembler/disassembler test coverage is complete. The CodeGen test coverage
is not, but I've included some tests, and more will be added as follow-up work.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@230413 91177308-0d34-0410-b5e6-96231b3b80d8
2015-02-25 01:06:45 +00:00
Bruno Cardoso Lopes
6bf5b2b094 [AsmPrinter] Access pointers to globals via pcrel GOT entries
Front-ends could use global unnamed_addr to hold pointers to other
symbols, like @gotequivalent below:

@foo = global i32 42
@gotequivalent = private unnamed_addr constant i32* @foo

@delta = global i32 trunc (i64 sub (i64 ptrtoint (i32** @gotequivalent to i64),
                                    i64 ptrtoint (i32* @delta to i64))
                           to i32)

The global @delta holds a data "PC"-relative offset to @gotequivalent,
an unnamed pointer to @foo. The darwin/x86-64 assembly output for this follows:

 .globl  _foo
_foo:
 .long   42

 .globl  _gotequivalent
_gotequivalent:
 .quad   _foo

 .globl  _delta
_delta:
 .long   _gotequivalent-_delta

Since unnamed_addr indicates that the address is not significant, only
the content, we can optimize the case above by replacing pc-relative
accesses to "GOT equivalent" globals, by a PC relative access to the GOT
entry of the final symbol instead. Therefore, "delta" can contain a pc
relative relocation to foo's GOT entry and we avoid the emission of
"gotequivalent", yielding the assembly code below:

 .globl  _foo
_foo:
 .long   42

 .globl  _delta
_delta:
 .long   _foo@GOTPCREL+4

There are a couple of advantages of doing this: (1) Front-ends that need
to emit a great deal of data to store pointers to external symbols could
save space by not emitting such "got equivalent" globals and (2) IR
constructs combined with this opt opens a way to represent GOT pcrel
relocations by using the LLVM IR, which is something we previously had
no way to express.

Differential Revision: http://reviews.llvm.org/D6922

rdar://problem/18534217

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@230264 91177308-0d34-0410-b5e6-96231b3b80d8
2015-02-23 21:26:18 +00:00
Craig Topper
f9c1605d56 [X86] Add some missing redundant MMX and SSE encodings for disassembler.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@230165 91177308-0d34-0410-b5e6-96231b3b80d8
2015-02-22 07:50:41 +00:00
Benjamin Kramer
6715e16c4f MC: Allow multiple comma-separated expressions on the .uleb128 directive.
For compatiblity with GNU as. Binutils documents this as
'.uleb128 expressions'. Subtle, isn't it?

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@229911 91177308-0d34-0410-b5e6-96231b3b80d8
2015-02-19 20:24:04 +00:00
Jozef Kolek
efea7db0ab [mips][microMIPS] Implement JALX instruction
Differential Revision: http://reviews.llvm.org/D5047


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@229702 91177308-0d34-0410-b5e6-96231b3b80d8
2015-02-18 17:15:48 +00:00
Daniel Sanders
7eedd07d5e [mips] Add backend support for Mips32r[35] and Mips64r[35].
Summary:
These ISA's didn't add any instructions so they are almost identical to
Mips32r2 and Mips64r2. Even the ELF e_flags are the same, However the ISA
revision in .MIPS.abiflags is 3 or 5 respectively instead of 2.

Reviewers: vmedic

Reviewed By: vmedic

Subscribers: tomatabacu, llvm-commits, atanasyan

Differential Revision: http://reviews.llvm.org/D7381


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@229695 91177308-0d34-0410-b5e6-96231b3b80d8
2015-02-18 16:24:50 +00:00
Kit Barton
31840a62af This patch adds the VSX logical instructions introduced in the Power ISA 2.07. It also removes the added complexity that favors VMX versions of the three instructions.
Phabricator review: http://reviews.llvm.org/D7616

Commiting on Nemanja's behalf.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@229694 91177308-0d34-0410-b5e6-96231b3b80d8
2015-02-18 16:21:46 +00:00
Toma Tabacu
227affe405 [mips] [IAS] Fix using .cpsetup with local labels (PR22518).
Summary:
Parse for an MCExpr instead of an Identifier and use the symbol for relocations, not just the symbol's name.

This fixes errors when using local labels in .cpsetup (PR22518).

Reviewers: dsanders

Reviewed By: dsanders

Subscribers: seanbruno, emaste, llvm-commits

Differential Revision: http://reviews.llvm.org/D7697

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@229671 91177308-0d34-0410-b5e6-96231b3b80d8
2015-02-18 13:46:53 +00:00
Ulrich Weigand
ca1a3cf45b [SystemZ] Support all TLS access models - MC part
The current SystemZ back-end only supports the local-exec TLS access model.
This patch adds all required MC support for the other TLS models, which
means in particular:

- Support additional relocation types for
  Initial-exec model: R_390_TLS_IEENT
  Local-dynamic-model: R_390_TLS_LDO32, R_390_TLS_LDO64,
                       R_390_TLS_LDM32, R_390_TLS_LDM64, R_390_TLS_LDCALL
  General-dynamic model: R_390_TLS_GD32, R_390_TLS_GD64, R_390_TLS_GDCALL

- Support assembler syntax to generate additional relocations
  for use with __tls_get_offset calls:
    :tls_gdcall:
    :tls_ldcall:

The patch also adds a new test to verify fixups and relocations,
and removes the (already unused) FK_390_PLT16DBL/FK_390_PLT32DBL
fixup kinds.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@229652 91177308-0d34-0410-b5e6-96231b3b80d8
2015-02-18 09:11:36 +00:00
Rafael Espindola
51beb495fc Add testcases I missed in r229541.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@229542 91177308-0d34-0410-b5e6-96231b3b80d8
2015-02-17 20:50:39 +00:00
Michael Kuperstein
012d5929f1 Fix quoting of #pragma comment for MS compat, LLVM part.
For #pragma comment(linker, ...) MSVC expects the comment string to be quoted, but for #pragma comment(lib, ...) the compiler itself quotes the library name.
Since this distinction disappears by the time the directive reaches the backend, move quoting for the "lib" version to the frontend.

Differential Revision: http://reviews.llvm.org/D7652

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@229375 91177308-0d34-0410-b5e6-96231b3b80d8
2015-02-16 11:57:17 +00:00
Craig Topper
9bb36ed8d8 [X86] Add assembly parser support for mnemonic aliases for AVX-512 vpcmp instructions.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@229287 91177308-0d34-0410-b5e6-96231b3b80d8
2015-02-15 07:13:48 +00:00
Craig Topper
09ea4e976b [X86] Add assembler predicates for the rest of the AVX512 feature flags. This makes the assembly matching consistent across all AVX512 instructions. Without this we were allowing some AVX512 instructions to be parsed always, but not the foundation instructions.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@229280 91177308-0d34-0410-b5e6-96231b3b80d8
2015-02-15 04:54:55 +00:00
Craig Topper
32f60795f5 [X86] Improve parsing support AVX/SSE floating point compare instruction mnemonic aliases. They'll now print with the alias the parser received instead of converting to the explicit immediate form.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@229266 91177308-0d34-0410-b5e6-96231b3b80d8
2015-02-14 21:54:03 +00:00
Toma Tabacu
94b64060af [mips] Improve support for the .set at/noat assembler directives.
Summary:
Made the following changes:
  Added calls to emitDirectiveSetNoAt() and emitDirectiveSetAt().
  Added special emit function for .set at=$reg, emitDirectiveSetAtWithArg(unsigned RegNo).
  Improved parsing error checks for .set at.
  Refactored parser code for .set at.
  Improved testing of both directives.
  Improved code readability and comments.

Reviewers: dsanders

Reviewed By: dsanders

Subscribers: llvm-commits

Differential Revision: http://reviews.llvm.org/D7176

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@229097 91177308-0d34-0410-b5e6-96231b3b80d8
2015-02-13 10:30:57 +00:00
Chandler Carruth
00ae03a747 Revert a series of commits starting at r228886 which is triggering some
regressions for LLDB on Linux. Rafael indicated on lldb-dev that we
should just go ahead and revert these but that he wasn't at a computer.
The patches backed out are as follows:

r228980: Add support for having multiple sections with the name and ...
r228889: Invert the section relocation map.
r228888: Use the existing SymbolTableIndex intsead of doing a lookup.
r228886: Create the Section -> Rel Section map when it is first needed.

These patches look pretty nice to me, so hoping its not too hard to get
them re-instated. =D

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@229080 91177308-0d34-0410-b5e6-96231b3b80d8
2015-02-13 07:52:39 +00:00
Craig Topper
f3455f13a2 [X86] Add support for parsing and printing the mnemonic aliases for the XOP VPCOM instructions.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@229078 91177308-0d34-0410-b5e6-96231b3b80d8
2015-02-13 07:42:25 +00:00