Commit Graph

87346 Commits

Author SHA1 Message Date
Logan Chien
645016533d Split MCELFStreamer into a header file.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169603 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-07 15:50:40 +00:00
Sean Silva
f722b007b2 docs: Convert LangRef to reST.
NOTE: If you have any patches in the works that modify LangRef, you will
need to rewrite the changes to LangRef.html to their equivalents in
LangRef.rst. If you need assistance feel free to contact me.

Since LangRef is mission-critical for the project and "normative", I
have taken extra care to ensure that no content was lost or altered in
the conversion. The content was converted with a tool called `pandoc`,
so there is no chance for a human error like accidentally forgetting a
sentence or whatever. After the initial conversion by `pandoc`, only
changes to the markup were done.

This is just the most literal conversion of the HTML document as
possible. It might be worth exploring some way to chop up this massive
document into separate pages, e.g. something like
`docs/LangRef/Instructions.rst`, `docs/LangRef/Intrinsics.rst`, etc.
with `docs/LangRef.rst` being an "intro/navigation page" of sorts. On
the other hand, that loses the ability to {Ctrl,Cmd}-F for a given term
right from your browser.

IMO, I think our stylesheet needs some work because I find it hard to
tell what level of nesting some of the headings are at (e.g. "is this a
new section or is it a subsection?"). The issue is present on other
pages, but the sheer size and deep section structure of LangRef really
brings this issue out. If there are any web designers out there in the
community it would be awesome if you tried to come up with something
nicer.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169596 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-07 10:36:55 +00:00
Evgeniy Stepanov
ece6db5f16 [msan] Remove readonly/readnone attributes from all called functions.
MSan uses a TLS slot to pass shadow for function arguments and return values.
This makes all instrumented functions not readonly, and at the same time
requires that all callees of an instrumented function that may be
MSan-instrumented do not have readonly attribute (otherwise some of the
instrumentation may be optimized out).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169591 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-07 09:08:32 +00:00
Jakob Stoklund Olesen
06180bf3f2 Use the new MIBundleBuilder class in the Mips target.
This is the preferred way of creating bundled machine instructions.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169585 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-07 04:23:40 +00:00
Jakob Stoklund Olesen
c8ce7a4bb5 Add an MIBundleBuilder class.
Like the MachineInstrBuilder, this class makes it easier to build
bundles of MachineInstrs.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169584 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-07 04:23:35 +00:00
Jakob Stoklund Olesen
fad649a5b1 Add higher-level API for dealing with bundled MachineInstrs.
This is still a work in progress. The purpose is to make bundling and
unbundling operations explicit, and to catch errors where bundles are
broken or created inadvertently.

The old IsInsideBundle flag is replaced by two MI flags: BundledPred
which has the same meaning as IsInsideBundle, and BundledSucc which is
set on instructions that are bundled with a successor. Having two flags
provdes redundancy to detect when a bundle is inadvertently torn by a
splice() or insert(), and it makes it possible to write bundle iterators
that don't need to peek at adjacent instructions.

The new flags can't be manipulated directly (once setIsInsideBundle is
gone). Instead there are MI functions to make and break bundle bonds.

The setIsInsideBundle function will be removed in a future commit. It
should be replaced by bundleWithPred().

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169583 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-07 04:23:29 +00:00
Akira Hatanaka
f3c0c77bc3 [mips] Delete nodes and instructions for dynamic alloca that are no longer in
use.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169580 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-07 03:10:18 +00:00
Akira Hatanaka
249330eadb [mips] Shorten predicate name.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169579 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-07 03:06:09 +00:00
Akira Hatanaka
64ed8e97f7 [mips] Delete unused sub-target features.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169578 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-07 03:04:05 +00:00
Akira Hatanaka
ab9705f8fa [mips] Remove unnecessary predicates.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169577 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-07 03:01:24 +00:00
Chandler Carruth
70d3bebc8b Add support to ValueTracking for determining that a pointer is non-null
by virtue of inbounds GEPs that preclude a null pointer.

This is a very common pattern in the code generated by std::vector and
other standard library routines which use allocators that test for null
pervasively. This is one step closer to teaching Clang+LLVM to be able
to produce an empty function for:

  void f() {
    std::vector<int> v;
    v.push_back(1);
    v.push_back(2);
    v.push_back(3);
    v.push_back(4);
  }

Which is related to getting them to completely fold SmallVector
push_back sequences into constants when inlining and other optimizations
make that a possibility.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169573 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-07 02:08:58 +00:00
Ted Kremenek
b02ed5b8ea Add manualRetain() and manualRelease() to ImmutableMapRef, and add a new constructor.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169572 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-07 02:03:00 +00:00
NAKAMURA Takumi
4a0ed9f4c7 Makefile.common: Update a description, s/Source/SOURCES/ , according to MakefileGuide.html#control-variables .
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169569 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-07 01:43:23 +00:00
NAKAMURA Takumi
d33d2210dc unittest/googletest/Makefile: Unbreak out-of-tree build.
- Use SOURCES instead of Source. See Makefile.rules and MakefileGuide.html.
  - Don't assume the current directory. $(wildcard *.cc) doesn't match anything on corresponding build directory.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169568 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-07 01:25:45 +00:00
Eli Bendersky
105fdbb131 Add convenience accessor to Triple for OS == NaCl
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169565 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-07 00:01:53 +00:00
Alexey Samsonov
e40aecf037 Try to unbreak makefile build by excluding gtest-all.cc source
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169564 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-06 23:59:54 +00:00
Matt Beaumont-Gay
c4e8ddff0c Add a 'using' declaration to suppress GCC's -Woverloaded-virtual while we
decide what pattern we want to follow in the future.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169561 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-06 23:15:36 +00:00
Alexey Samsonov
57f7dafcb7 Modify the LLVM checkout of googletest:
1) don't delete gtest-all.cc (which is used to gather all gtest source
   files in a single file) 
2) make including LLVMSupport headers optional (on by default).
   Sanitizer tools may want to use their own versions of googletest
   compiled with specific flags, instead of the common googletest
   library used for all other LLVM/Clang unittests.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169559 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-06 23:04:41 +00:00
Pedro Artigas
873a1dd7d6 fixed valgrind issues of prior commit, this change applies r169456 changes back to the tree with fixes. on darwin no valgrind issues exist in the tests that used to fail.
original change description:

change MCContext to work on the doInitialization/doFinalization model

reviewed by Evan Cheng <evan.cheng@apple.com>




git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169553 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-06 22:12:44 +00:00
Jakub Staszak
5b4af8b52a Remove unused field.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169551 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-06 22:08:59 +00:00
Jakub Staszak
582088c088 Remove trailing spaces.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169550 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-06 21:57:16 +00:00
Dmitri Gribenko
00e97c2126 Fix typos in CHECK lines.
Patch by Alexander Zinenko.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169547 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-06 21:24:47 +00:00
Dmitri Gribenko
b553f8960a Documentation: fix typos and formatting.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169546 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-06 21:12:35 +00:00
Ted Kremenek
091508d3d0 Revert "Allow modifying an ImmutableMap without canonicalizing it immediately."
Jordan and I discussed this, and we don't want this in the API.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169541 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-06 19:41:30 +00:00
Evan Cheng
2766a47310 Replace r169459 with something safer. Rather than having computeMaskedBits to
understand target implementation of any_extend / extload, just generate
zero_extend in place of any_extend for liveouts when the target knows the
zero_extend will be implicit (e.g. ARM ldrb / ldrh) or folded (e.g. x86 movz).

rdar://12771555


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169536 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-06 19:13:27 +00:00
Jakub Staszak
d3a056392b Remove unneeded function, since PR8156 was fixed over a year ago.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169534 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-06 19:05:46 +00:00
Jordan Rose
972f087dbb Allow modifying an ImmutableMap without canonicalizing it immediately.
This is an alternative to the ImmutableMapRef interface where a factory
should still be canonicalizing by default, but in certain cases an
improvement can be made by delaying the canonicalization.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169532 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-06 19:01:24 +00:00
Jakub Staszak
b2af3a095b Simplify code.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169521 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-06 18:22:59 +00:00
Nadav Rotem
dde785cd70 Fix a bug in the code that merges consecutive stores. Previously we did not
check if loads that happen in between stores alias with the first store in the
chain, only with the second store onwards.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169516 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-06 17:34:13 +00:00
NAKAMURA Takumi
67b9928a93 MemorySanitizer.cpp: Suppress a warning. [-Wunused-variable]
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169504 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-06 13:38:00 +00:00
Evgeniy Stepanov
7baaee37cc [msan] Fix a typo in a comment.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169491 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-06 11:58:59 +00:00
Evgeniy Stepanov
4031b194ac [msan] Do not store origin for clean values.
Instead of unconditionally storing origin with every application store,
only do this when the shadow of the stored value is != 0.

This change also delays instrumentation of stores until after the walk over
function's instructions, because adding new basic blocks confuses InstVisitor.

We only keep 1 origin value per 4 bytes of application memory. This change
fixes the bug when a store of a single clean byte wiped the origin for the
whole 4-byte area.

Since stores of uninitialized values are relatively uncommon, this change
improves performance of track-origins mode by 5% median and by up to 47% on
specs.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169490 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-06 11:41:03 +00:00
Bill Wendling
6afe478e00 s/getLowerBoundDefault/getDefaultLowerBound/ for consistency. Also put the more natural check first in the if-then statement.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169486 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-06 07:55:19 +00:00
Bill Wendling
222c2fd60d Handle non-default array bounds.
Some languages, e.g. Ada and Pascal, allow you to specify that the array bounds
are different from the default (1 in these cases). If we have a lower bound
that's non-default, then we emit the lower bound. We also calculate the correct
upper bound in those cases.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169484 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-06 07:38:10 +00:00
Craig Topper
da92646875 Remove intrinsic specific instructions for (V)MOVQUmr with patterns pointing to the normal instructions.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169482 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-06 07:31:16 +00:00
Craig Topper
ab69b25f4b Mark MOVDQ(A/U)rm as ReMaterializable. Mark all MOVDQ(A/U) instructions as neverHasSideEffects.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169477 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-06 06:49:16 +00:00
Evan Cheng
824ec7d01a Properly fix the tes.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169464 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-06 02:29:29 +00:00
NAKAMURA Takumi
e1ab8e3e73 llvm/test/CodeGen/ARM/extload-knownzero.ll: Try to unbreak, to add -O0. I guess Chad expects fastisel here.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169463 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-06 02:22:58 +00:00
NAKAMURA Takumi
c7078924f0 Revert r169456, "change MCContext to work on the doInitialization/doFinalization model"
It broke many builders.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169462 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-06 02:00:13 +00:00
Chad Rosier
c9758b1366 [arm fast-isel] Make the fast-isel implementation of memcpy respect alignment.
rdar://12821569

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169460 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-06 01:34:31 +00:00
Evan Cheng
8a7186dbc2 Let targets provide hooks that compute known zero and ones for any_extend
and extload's. If they are implemented as zero-extend, or implicitly
zero-extend, then this can enable more demanded bits optimizations. e.g.

define void @foo(i16* %ptr, i32 %a) nounwind {
entry:
  %tmp1 = icmp ult i32 %a, 100
  br i1 %tmp1, label %bb1, label %bb2
bb1:
  %tmp2 = load i16* %ptr, align 2
  br label %bb2
bb2:
  %tmp3 = phi i16 [ 0, %entry ], [ %tmp2, %bb1 ]
  %cmp = icmp ult i16 %tmp3, 24
  br i1 %cmp, label %bb3, label %exit
bb3:
  call void @bar() nounwind
  br label %exit
exit:
  ret void
}

This compiles to the followings before:
        push    {lr}
        mov     r2, #0
        cmp     r1, #99
        bhi     LBB0_2
@ BB#1:                                 @ %bb1
        ldrh    r2, [r0]
LBB0_2:                                 @ %bb2
        uxth    r0, r2
        cmp     r0, #23
        bhi     LBB0_4
@ BB#3:                                 @ %bb3
        bl      _bar
LBB0_4:                                 @ %exit
        pop     {lr}
        bx      lr

The uxth is not needed since ldrh implicitly zero-extend the high bits. With
this change it's eliminated.

rdar://12771555


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169459 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-06 01:28:01 +00:00
Pedro Artigas
486a7ad94f change MCContext to work on the doInitialization/doFinalization model
reviewed by Evan Cheng <evan.cheng@apple.com>



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169456 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-06 00:50:55 +00:00
Bill Wendling
1c211640e5 Set the 'MadeChange' variable if we are deleting blocks.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169455 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-06 00:30:20 +00:00
Michael Ilseman
85893f48a6 Have CannotBeNegativeZero() be aware of the nsz fast-math flag
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169452 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-06 00:07:09 +00:00
Andrew Trick
6e3411375e Taking ownership of indvars/lsr.
Evan nominated me for this a while back, and no one has offered to
save me from it.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169447 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-05 23:32:44 +00:00
Richard Smith
c15e5b0a0d PR10867: Analogue of r169441 for when using external 'sh'. And actually run the test!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169446 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-05 23:15:33 +00:00
Andrew Trick
22af4bc07b RegPressureTracker::dump(): Remove unnecessary argument.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169443 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-05 23:05:22 +00:00
Richard Smith
00fb9c429e PR10867. lit would interpret
RUN: a
  RUN: b || true

as "a && (b || true)" in Tcl mode, and as "(a && b) || true" in sh mode.
Everyone seems to (quite reasonably) write tests assuming the Tcl behavior,
so use that in sh mode too.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169441 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-05 22:54:26 +00:00
Akira Hatanaka
c4c14a7b4a Do not run tests MappedMemoryTest.BasicWrite and MultipleWrite unless both
MF_READ and MF_WRITE are set.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169439 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-05 22:43:07 +00:00
Michael J. Spencer
1246700d1b Quick build fix for c++03 clang. This needs a proper solution. Note that these offsets are guaranteed to be correct by Endian.h.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169438 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-05 22:38:01 +00:00