Commit Graph

115488 Commits

Author SHA1 Message Date
Andrew Trick
b827c4b923 Reintroduce the SelectionDAG scheduler test for r233351.
This test returns nonnative integer types which aren't supported on all targets.
The real issue with the SelectionDAG scheduler is with x86 EFLAGS.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@233355 91177308-0d34-0410-b5e6-96231b3b80d8
2015-03-27 04:42:52 +00:00
David Majnemer
db573736fd WinEH: Create a parent frame alloca for HandlerType xdata tables
We don't have any logic to emit those tables yet, so the SDAG lowering
of this intrinsic is just a stub.  We can see the intrinsic in the
prepared IR, though.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@233354 91177308-0d34-0410-b5e6-96231b3b80d8
2015-03-27 04:17:07 +00:00
Andrew Trick
6284bcd95b This test should have been target specific. I missed that.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@233353 91177308-0d34-0410-b5e6-96231b3b80d8
2015-03-27 04:04:35 +00:00
Karthik Bhat
611d4bde9b Refactor Code inside LoopVectorizer's function isInductionVariable.
This patch exposes LoopVectorizer's isInductionVariable function as common
a functionality.
http://reviews.llvm.org/D8608


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@233352 91177308-0d34-0410-b5e6-96231b3b80d8
2015-03-27 03:44:15 +00:00
Andrew Trick
18fc42ab12 Fix a bug in SelectionDAG scheduling backtracking code: PR22304.
It can happen (by line CurSU->isPending = true; // This SU is not in
AvailableQueue right now.) that a SUnit is mark as available but is
not in the AvailableQueue. For SUnit being selected for scheduling
both conditions must be met.

This patch mainly defensively protects from invalid removing a node
from a queue. Sometimes nodes are marked isAvailable but are not in
the queue because they have been defered due to some hazard.

Patch by Pawel Bylica!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@233351 91177308-0d34-0410-b5e6-96231b3b80d8
2015-03-27 03:44:13 +00:00
Nick Lewycky
b3ad90eacc Revert r233175 and r233183 with it. This pulls float2int back out of the tree, due to PR23038.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@233350 91177308-0d34-0410-b5e6-96231b3b80d8
2015-03-27 02:00:11 +00:00
Duncan P. N. Exon Smith
97fcbf1874 DebugInfo: Update testcases with invalid variables
Fix testcases whose variables are invalid.  I'm working on a patch that
adds `Verifier` checks for `MDLocalVariable` (and `MDGlobalVariable`),
and these failed because:

  - `scope:` fields need to point at `MDLocalScope` and can't be null.
  - `file:` fields need to point at `MDFile`.
  - `inlinedAt:` fields need to point at `MDLocation`.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@233349 91177308-0d34-0410-b5e6-96231b3b80d8
2015-03-27 01:58:34 +00:00
Ahmed Bougacha
f265603512 [AsmPrinter] Don't assert on GOT equivalent non-constant users.
We used to dyn_cast<Constant> in the recursive call, but cast<> in the
initial one, and there can be non-Constant initial users.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@233346 91177308-0d34-0410-b5e6-96231b3b80d8
2015-03-27 01:40:54 +00:00
Duncan P. N. Exon Smith
9f2b49c521 DIBuilder: Change a few helpers to return downcasted MDNodes
Change `getNonCompileUnitScope()` to return `MDScope` and
`getConstantAsMetadata()` to return `ConstantAsMetadata`.  This will
make it easier to start requiring more type safety in the debug info
hierarchy.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@233340 91177308-0d34-0410-b5e6-96231b3b80d8
2015-03-27 00:34:10 +00:00
Duncan P. N. Exon Smith
50b75d5804 AsmWriter: Cleanup debug info fields with MDFieldPrinter, NFC
Move all the `MDNode` field helper methods into a new class,
`MDFieldPrinter`, and add helpers for integers, bools, and `DW_*`
symbolic constants.  This reduces a ton of code duplication, and makes
it more mechanical to update `AsmWriter` to print broken code in the
context of stricter accessors (like in r233322).

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@233337 91177308-0d34-0410-b5e6-96231b3b80d8
2015-03-27 00:17:42 +00:00
Ahmed Bougacha
aff96c9829 Deduplicate a bunch of setOpActions into an MVT range-for. NFC.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@233330 91177308-0d34-0410-b5e6-96231b3b80d8
2015-03-26 23:21:03 +00:00
Ahmed Bougacha
f55b1a5be4 [CodeGen] Report error rather than crash when unable to makeLibCall.
Also, make the assumption explicit in the header.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@233329 91177308-0d34-0410-b5e6-96231b3b80d8
2015-03-26 22:46:58 +00:00
Ahmed Bougacha
5cb4112882 [CodeGen] Don't pretend we can expand f16 libcalls.
We used to mark a bunch of libm nodes as Expand for f16.  There are no
libcalls we can use for those, so we eventually just hit an unhelpful
llvm_unreachable in ExpandFPLibCall.

Instead, just ignore them altogether.  If nothing else changes, we'll
then get the more descriptive and pleasant "Cannot select" fatal error.

There's an argument to be made for consistency, but f16 is already
special in all the good ways, and as long as there's no f16 support in
the ops expander (this patch), as well as the Soften/Expand float
legalizers (which, when hit, will currently segfault), I think there's
no point in even pretending we can legalize any of this.

This shouldn't affect anything that's not already broken.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@233328 91177308-0d34-0410-b5e6-96231b3b80d8
2015-03-26 22:44:58 +00:00
Derek Schuff
32b33c2c30 Use movw/movt instead of constant pool loads to lower byval parameter copies
Summary:
The ARM backend can use a loop to implement copying byval parameters before
a call. In non-thumb2 mode it uses a constant pool load to materialize the
trip count. For targets that need movt instead (e.g. Native Client), use
the same code as in thumb2 mode to materialize the trip count.

Reviewers: jfb, t.p.northover

Differential Revision: http://reviews.llvm.org/D8442

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@233324 91177308-0d34-0410-b5e6-96231b3b80d8
2015-03-26 22:11:00 +00:00
Duncan P. N. Exon Smith
c4eafd24f2 Verifier: Check accessors of MDLocation
Check accessors of `MDLocation`, and change them to `cast<>` down to the
right types.  Also add type-safe factory functions.

All the callers that handle broken code need to use the new versions of
the accessors (`getRawScope()` instead of `getScope()`) that still
return `Metadata*`.  This is also necessary for things like
`MDNodeKeyImpl<MDLocation>` (in LLVMContextImpl.h) that need to unique
the nodes when their operands might still be forward references of the
wrong type.

In the `Value` hierarchy, consumers that handle broken code use
`getOperand()` directly.  However, debug info nodes have a ton of
operands, and their order (even their existence) isn't stable yet.  It's
safer and more maintainable to add an explicit "raw" accessor on the
class itself.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@233322 91177308-0d34-0410-b5e6-96231b3b80d8
2015-03-26 22:05:04 +00:00
Derek Schuff
337bd191d2 Default to armv7 cpu for NaCl when march=arm
Summary:
When the arch is given as "arm" clang uses the default target CPU from
LLVM to determine what the real arch should be (i.e. "arm" becomes
"armv4t" because LLVM's getARMCPUForArch falls back to "arm7tdmi").
Default to "cortex-a8" so that we end up with "armv7" in clang.

the nacl-direct.c test in clang also covers this case.

Differential Revision: http://reviews.llvm.org/D8589

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@233321 91177308-0d34-0410-b5e6-96231b3b80d8
2015-03-26 21:58:46 +00:00
Rafael Espindola
9d2f0da138 Fix PR23025.
There is something in link.exe that requires a relocation to use a
global symbol. Not doing so breaks the chrome build on windows.

This patch sets isWeak for that to work. To compensate,
we then need to look past those symbols when not creating relocations.

This patch includes an ELF test that matches GNU as behaviour.

I am still reducing the chrome build issue and will add a test
once that is done.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@233318 91177308-0d34-0410-b5e6-96231b3b80d8
2015-03-26 21:11:00 +00:00
Yaron Keren
61ac65ddec Fix rare case where APInt divide algorithm applied un-needed transformation.
APInt uses Knuth's D algorithm for long division. In rare cases the
implementation applied a transformation that was not needed.

Added unit tests for long division. KnuthDiv() procedure is fully covered.
There is a case in APInt::divide() that I believe is never used (marked with
a comment) as all users of divide() handle trivial cases earlier.

Patch by Pawel Bylica!

  http://reviews.llvm.org/D8448



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@233312 91177308-0d34-0410-b5e6-96231b3b80d8
2015-03-26 19:45:19 +00:00
Sanjoy Das
784545fba0 [ADT][CMake][AutoConf] Fail-fast iterators for DenseMap
Summary:
This patch is an attempt at making `DenseMapIterator`s "fail-fast".
Fail-fast iterators that have been invalidated due to insertion into
the host `DenseMap` deterministically trip an assert (in debug mode)
on access, instead of non-deterministically hitting memory corruption
issues.

Enabling fail-fast iterators breaks the LLVM C++ ABI, so they are
predicated on `LLVM_ENABLE_ABI_BREAKING_CHECKS`.
`LLVM_ENABLE_ABI_BREAKING_CHECKS` by default flips with
`LLVM_ENABLE_ASSERTS`, but can be clamped to ON or OFF using the CMake /
autoconf build system.

Reviewers: chandlerc, dexonsmith, rnk, zturner

Subscribers: llvm-commits

Differential Revision: http://reviews.llvm.org/D8351

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@233310 91177308-0d34-0410-b5e6-96231b3b80d8
2015-03-26 19:25:01 +00:00
Justin Bogner
55a5cb1a4d [ARM] Fix some non-portable shell syntax in r233301's tests
The "|&" operator isn't POSIX, so it can fail depending on the host's
default shell. Avoid it.

There were also a couple of places that did "2>1", but this creates a
file called "1". They clearly meant "2>&1".

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@233309 91177308-0d34-0410-b5e6-96231b3b80d8
2015-03-26 19:24:13 +00:00
Paul Robinson
aaa9c561ca Ignore compile_commands.json only at the root of the tree.
Can avoid a problem if tools/clang/tools/extra is in the tree.

Patch by Douglas Yung!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@233307 91177308-0d34-0410-b5e6-96231b3b80d8
2015-03-26 18:55:42 +00:00
Andrew Kaylor
9b512e355f Supress MSVC padding warning in alignment test
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@233305 91177308-0d34-0410-b5e6-96231b3b80d8
2015-03-26 18:48:42 +00:00
Renato Golin
d6e2911a4f Adds an option to disable ARM ld/st optim pass
Enabled by default, but it's useful when debugging with llc.

Patch by Ranjeet Singh.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@233303 91177308-0d34-0410-b5e6-96231b3b80d8
2015-03-26 18:38:04 +00:00
Duncan P. N. Exon Smith
387a89bb36 Reapply "Linker: Drop function pointers for overridden subprograms"
This reverts commit r233254, effectively reapplying r233164 (and its
successors), with an additional testcase for when subprograms match
exactly.  This fixes PR22792 (again).

I'm using the same approach, but I've moved up the call to
`stripReplacedSubprograms()`.  The function pointers need to be dropped
before mapping any metadata from the source module, or else this can
drop the function from new subprograms that have merged (via Metadata
uniquing) with the old ones.  Dropping the pointers first prevents them
from merging.

**** The original commit message follows. ****

Linker: Drop function pointers for overridden subprograms

Instead of dropping subprograms that have been overridden, just set
their function pointers to `nullptr`.  This is a minor adjustment to the
stop-gap fix for PR21910 committed in r224487, and fixes the crasher
from PR22792.

The problem that r224487 put a band-aid on: how do we find the canonical
subprogram for a `Function`?  Since the backend currently relies on
`DebugInfoFinder` (which does a naive in-order traversal of compile
units and picks the first subprogram) for this, r224487 tried dropping
non-canonical subprograms.

Dropping subprograms fails because the backend *also* builds up a map
from subprogram to compile unit (`DwarfDebug::SPMap`) based on the
subprogram lists.  A missing subprogram causes segfaults later when an
inlined reference (such as in this testcase) is created.

Instead, just drop the `Function` pointer to `nullptr`, which nicely
mirrors what happens when an already-inlined `Function` is optimized
out.  We can't really be sure that it's the same definition anyway, as
the testcase demonstrates.

This still isn't completely satisfactory.  Two flaws at least that I can
think of:

  - I still haven't found a straightforward way to make this symmetric
    in the IR.  (Interestingly, the DWARF output is already symmetric,
    and I've tested for that to be sure we don't regress.)
  - Using `DebugInfoFinder` to find the canonical subprogram for a
    function is kind of crazy.  We should just attach metadata to the
    function, like this:

        define weak i32 @foo(i32, i32) !dbg !MDSubprogram(...) {

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@233302 91177308-0d34-0410-b5e6-96231b3b80d8
2015-03-26 18:35:30 +00:00
Vladimir Sukharev
c8a807c1c5 [ARM] Add v8.1a "Rounding Double Multiply Add/Subtract" extension
Reviewers: t.p.northover

Subscribers: llvm-commits

Differential Revision: http://reviews.llvm.org/D8503


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@233301 91177308-0d34-0410-b5e6-96231b3b80d8
2015-03-26 18:29:02 +00:00
Vladimir Sukharev
ed11613334 [AArch64] Rename Pairs to Mappings in AArch64NamedImmMapper
Third element is to be added soon to "struct AArch64NamedImmMapper::Mapping". So its instances are renamed from ...Pairs to ...Mappings

Reviewers: jmolloy

Subscribers: llvm-commits

Differential Revision: http://reviews.llvm.org/D8582


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@233300 91177308-0d34-0410-b5e6-96231b3b80d8
2015-03-26 17:57:39 +00:00
Vladimir Sukharev
05641295c3 [AArch64] Move initializations of AArch64NamedImmMapper out of void AArch64Operand::print(...)
class AArch64NamedImmMapper is to become dependent of SubTargetFeatures, while class AArch64Operand don't have access to the latter. 

So, AArch64NamedImmMapper constructor invocations are refactored away from methods of AArch64Operand.

Reviewers: jmolloy

Subscribers: llvm-commits

Differential Revision: http://reviews.llvm.org/D8579


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@233297 91177308-0d34-0410-b5e6-96231b3b80d8
2015-03-26 17:29:53 +00:00
Sanjoy Das
a9228aa73b [SCEV] Revert bailout added in r75511.
Summary:
With the introduction of MarkPendingLoopPredicates in r157092, I don't
think the bailout is needed anymore.

Reviewers: atrick, nicholas

Subscribers: llvm-commits

Differential Revision: http://reviews.llvm.org/D8624

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@233296 91177308-0d34-0410-b5e6-96231b3b80d8
2015-03-26 17:28:26 +00:00
Sanjay Patel
69688b956a revert inadvertent change
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@233294 91177308-0d34-0410-b5e6-96231b3b80d8
2015-03-26 17:19:24 +00:00
Sanjay Patel
4ce65681f2 comment cleanup; NFC
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@233293 91177308-0d34-0410-b5e6-96231b3b80d8
2015-03-26 17:18:17 +00:00
Benjamin Kramer
aa66f225d2 Remove outdated README-SSE.txt entries.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@233292 91177308-0d34-0410-b5e6-96231b3b80d8
2015-03-26 17:12:16 +00:00
Benjamin Kramer
8f820e9495 InstCombine: fold (A << C) == (B << C) --> ((A^B) & (~0U >> C)) == 0
Anding and comparing with zero can be done in a single instruction on
most archs so this is a bit cheaper.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@233291 91177308-0d34-0410-b5e6-96231b3b80d8
2015-03-26 17:12:06 +00:00
Vladimir Sukharev
27d12f3e6e [AArch64, ARM] Add v8.1a architecture and generic cpu
New architecture and cpu added, following http://community.arm.com/groups/processors/blog/2014/12/02/the-armv8-a-architecture-and-its-ongoing-development

Reviewers: t.p.northover

Subscribers: llvm-commits

Differential Revision: http://reviews.llvm.org/D8505


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@233290 91177308-0d34-0410-b5e6-96231b3b80d8
2015-03-26 17:05:54 +00:00
Sanjay Patel
5de4af6195 Use SDValue bool checks; NFC intended
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@233289 91177308-0d34-0410-b5e6-96231b3b80d8
2015-03-26 16:55:43 +00:00
Sanjay Patel
1c76e39f47 fix indent; NFC
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@233288 91177308-0d34-0410-b5e6-96231b3b80d8
2015-03-26 16:55:17 +00:00
Jingyue Wu
439d17ca9f [SLSR] handle candidate form &B[i * S]
Summary:
This patch enhances SLSR to handle another candidate form &B[i * S]. If
we found two candidates

S1: X = &B[i * S]
S2: Y = &B[i' * S]

and S1 dominates S2, we can replace S2 with

Y = &X[(i' - i) * S]

Test Plan:
slsr-gep.ll
X86/no-slsr.ll: verify that we do not run SLSR on GEPs that already fit into
an addressing mode

Reviewers: eliben, atrick, meheff, hfinkel

Reviewed By: hfinkel

Subscribers: sanjoy, llvm-commits

Differential Revision: http://reviews.llvm.org/D7459

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@233286 91177308-0d34-0410-b5e6-96231b3b80d8
2015-03-26 16:49:24 +00:00
Aaron Ballman
54b6c4c709 Sometimes report_fatal_error is called when there is not a handler function used to fail gracefully. In that case, RunInterruptHandlers is called, which attempts to enter a critical section object. Ensure that the critical section is properly initialized so that this code functions properly, and tools like clang-tidy do not crash in Debug builds.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@233282 91177308-0d34-0410-b5e6-96231b3b80d8
2015-03-26 16:24:38 +00:00
Toma Tabacu
06a8dfd1ee [mips] Move the setATReg definition inside the MipsAssemblerOptions class. NFC.
Summary: This groups all of the MipsAssemblerOptions functionality together, making it more reader-friendly.

Reviewers: dsanders

Reviewed By: dsanders

Subscribers: llvm-commits

Differential Revision: http://reviews.llvm.org/D8445

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@233271 91177308-0d34-0410-b5e6-96231b3b80d8
2015-03-26 13:08:55 +00:00
Andrea Di Biagio
971eb1b382 [X86][FastIsel] Teach how to select vector load instructions.
This patch teaches fast-isel how to select 128-bit vector load instructions.
Added test CodeGen/X86/fast-isel-vecload.ll

Differential Revision: http://reviews.llvm.org/D8605


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@233270 91177308-0d34-0410-b5e6-96231b3b80d8
2015-03-26 11:29:02 +00:00
Duncan P. N. Exon Smith
a977f7e771 Revert "Linker: Drop function pointers for overridden subprograms"
This reverts commit r233164 and its testcase follow-ups in r233165,
r233207, r233214, and r233221.  It apparently unleashed an LTO bootstrap
failure, at least on Darwin:

http://lab.llvm.org:8080/green/job/clang-stage2-configure-Rlto_build/3376/

I'm reproducing now.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@233254 91177308-0d34-0410-b5e6-96231b3b80d8
2015-03-26 05:27:45 +00:00
Duncan P. N. Exon Smith
7a1a3e909d bugpoint: Verify input files
Like r233229 for `llvm-link`, start verifying input files to `bugpoint`.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@233253 91177308-0d34-0410-b5e6-96231b3b80d8
2015-03-26 05:03:10 +00:00
Duncan P. N. Exon Smith
6a62f78523 bugpoint: Return early after error, NFC
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@233252 91177308-0d34-0410-b5e6-96231b3b80d8
2015-03-26 05:03:06 +00:00
Quentin Colombet
45f376c4e6 [RegisterCoalescer] Add a rule to consider more profitable copies first when
those are in the same basic block.
The previous approach was the topological order of the basic block.

By default this rule is disabled.

Related to PR22768.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@233241 91177308-0d34-0410-b5e6-96231b3b80d8
2015-03-26 01:01:48 +00:00
Eric Christopher
dd9bb11cfc Testcase for r233239.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@233240 91177308-0d34-0410-b5e6-96231b3b80d8
2015-03-26 00:57:33 +00:00
Eric Christopher
3a77909dae Add computeFSAdditions to the function based subtarget creation
for PPC due to some unfortunate default setting via TargetMachine
creation. I've added a FIXME on how this can be unraveled in the
backend and a test to make sure we successfully legalize 64-bit things
if we say we're 64-bits.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@233239 91177308-0d34-0410-b5e6-96231b3b80d8
2015-03-26 00:50:23 +00:00
Duncan P. N. Exon Smith
6141f178a6 llvm-link: Verify input modules
Otherwise, broken input modules can cause assertions.  I've updated two
of the testcases that started failing (modules that had `Require` flags
but didn't meet their own requirements), but Rafael and I decided that
test/Linker/2011-08-22-ResolveAlias.ll should just be deleted outright
-- it's a leftover of the way llvm-gcc used to implement weakref.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@233229 91177308-0d34-0410-b5e6-96231b3b80d8
2015-03-25 23:22:10 +00:00
Nico Weber
7424d9321e Fix typo in comment.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@233226 91177308-0d34-0410-b5e6-96231b3b80d8
2015-03-25 22:34:16 +00:00
Sanjoy Das
93d88192a2 [ValueTracking] Fix PR23011.
Summary:
`ComputeNumSignBits` returns incorrect results for `srem` instructions.
This change fixes the issue and adds a test case.

Reviewers: nadav, nicholas, atrick

Subscribers: llvm-commits

Differential Revision: http://reviews.llvm.org/D8600

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@233225 91177308-0d34-0410-b5e6-96231b3b80d8
2015-03-25 22:33:53 +00:00
Simon Pilgrim
eb32048f80 [DAGCombiner] Add support for TRUNCATE + FP_EXTEND vector constant folding
This patch adds supports for the vector constant folding of TRUNCATE and FP_EXTEND instructions and tidies up the SINT_TO_FP and UINT_TO_FP instructions to match.

It also moves the vector constant folding for the FNEG and FABS instructions to use the DAG.getNode() functionality like the other unary instructions.

Differential Revision: http://reviews.llvm.org/D8593

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@233224 91177308-0d34-0410-b5e6-96231b3b80d8
2015-03-25 22:30:31 +00:00
Duncan P. N. Exon Smith
00aafa5d73 Linker: Stop using -gmlt test/Linker/subprogram-linkonce-weak.ll
As dblaikie pointed out, if I stop setting `emissionKind: 2` then the
backend won't do magical things on Linux vs. Darwin.  I had wrongly
assumed that there were stricter requirements on the input if we weren't
in line-tables-only mode, but apparently not.

With that knowledge, clean up this testcase a little more.

  - Set `emissionKind: 1`.
  - Add back checks for the weak version of @foo.
  - Check more robustly that we have the right subprograms by checking
    the `DW_AT_decl_file` and `DW_AT_decl_line` which now show up.
  - Check the line table in isolation (since it's no longer doubling as
    an indirect test for the subprogram of the weak version of @foo).

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@233221 91177308-0d34-0410-b5e6-96231b3b80d8
2015-03-25 21:36:41 +00:00