OSDN Git Service
Renato Golin [Thu, 26 Mar 2015 18:38:04 +0000 (18:38 +0000)]
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
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Duncan P. N. Exon Smith [Thu, 26 Mar 2015 18:35:30 +0000 (18:35 +0000)]
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
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Vladimir Sukharev [Thu, 26 Mar 2015 18:29:02 +0000 (18:29 +0000)]
[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
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Vladimir Sukharev [Thu, 26 Mar 2015 17:57:39 +0000 (17:57 +0000)]
[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
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Vladimir Sukharev [Thu, 26 Mar 2015 17:29:53 +0000 (17:29 +0000)]
[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
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Sanjoy Das [Thu, 26 Mar 2015 17:28:26 +0000 (17:28 +0000)]
[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
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Sanjay Patel [Thu, 26 Mar 2015 17:19:24 +0000 (17:19 +0000)]
revert inadvertent change
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@233294
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Sanjay Patel [Thu, 26 Mar 2015 17:18:17 +0000 (17:18 +0000)]
comment cleanup; NFC
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@233293
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Benjamin Kramer [Thu, 26 Mar 2015 17:12:16 +0000 (17:12 +0000)]
Remove outdated README-SSE.txt entries.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@233292
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Benjamin Kramer [Thu, 26 Mar 2015 17:12:06 +0000 (17:12 +0000)]
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
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Vladimir Sukharev [Thu, 26 Mar 2015 17:05:54 +0000 (17:05 +0000)]
[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
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Sanjay Patel [Thu, 26 Mar 2015 16:55:43 +0000 (16:55 +0000)]
Use SDValue bool checks; NFC intended
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@233289
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Sanjay Patel [Thu, 26 Mar 2015 16:55:17 +0000 (16:55 +0000)]
fix indent; NFC
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@233288
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Jingyue Wu [Thu, 26 Mar 2015 16:49:24 +0000 (16:49 +0000)]
[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
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Aaron Ballman [Thu, 26 Mar 2015 16:24:38 +0000 (16:24 +0000)]
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
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Toma Tabacu [Thu, 26 Mar 2015 13:08:55 +0000 (13:08 +0000)]
[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
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Andrea Di Biagio [Thu, 26 Mar 2015 11:29:02 +0000 (11:29 +0000)]
[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
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Duncan P. N. Exon Smith [Thu, 26 Mar 2015 05:27:45 +0000 (05:27 +0000)]
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
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Duncan P. N. Exon Smith [Thu, 26 Mar 2015 05:03:10 +0000 (05:03 +0000)]
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
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Duncan P. N. Exon Smith [Thu, 26 Mar 2015 05:03:06 +0000 (05:03 +0000)]
bugpoint: Return early after error, NFC
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@233252
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Quentin Colombet [Thu, 26 Mar 2015 01:01:48 +0000 (01:01 +0000)]
[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
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Eric Christopher [Thu, 26 Mar 2015 00:57:33 +0000 (00:57 +0000)]
Testcase for r233239.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@233240
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Eric Christopher [Thu, 26 Mar 2015 00:50:23 +0000 (00:50 +0000)]
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
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Duncan P. N. Exon Smith [Wed, 25 Mar 2015 23:22:10 +0000 (23:22 +0000)]
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
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Nico Weber [Wed, 25 Mar 2015 22:34:16 +0000 (22:34 +0000)]
Fix typo in comment.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@233226
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Sanjoy Das [Wed, 25 Mar 2015 22:33:53 +0000 (22:33 +0000)]
[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
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Simon Pilgrim [Wed, 25 Mar 2015 22:30:31 +0000 (22:30 +0000)]
[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
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Duncan P. N. Exon Smith [Wed, 25 Mar 2015 21:36:41 +0000 (21:36 +0000)]
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
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Andrew Kaylor [Wed, 25 Mar 2015 21:33:24 +0000 (21:33 +0000)]
Fix remaining MSVC warning
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@233220
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Matthias Braun [Wed, 25 Mar 2015 21:18:24 +0000 (21:18 +0000)]
RegisterCoalescer: Fix implicit def handling in register coalescer
If liveranges induced by an IMPLICIT_DEF get completely covered by a
proper liverange the IMPLICIT_DEF instructions and its corresponding
definitions have to be removed from the live ranges. This has to happen
in the subregister live ranges as well (I didn't see this case earlier
because in most programs only some subregisters are covered and the
IMPLCIT_DEF won't get removed).
No testcase, I spent hours trying to create one for one of the public
targets, but ultimately failed because I couldn't manage to properly
control the placement of COPY and IMPLICIT_DEF instructions from an .ll
file.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@233217
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Matthias Braun [Wed, 25 Mar 2015 21:18:22 +0000 (21:18 +0000)]
MachineVerifier: slightly simplify code that is only called with vregs
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@233216
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Duncan P. N. Exon Smith [Wed, 25 Mar 2015 20:51:21 +0000 (20:51 +0000)]
Linker: Loosen checks slightly from r233207
According to at least one bot [1], function prologues aren't always
empty for these functions. Skip that part of the follow-up check.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@233214
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Krzysztof Parzyszek [Wed, 25 Mar 2015 20:21:16 +0000 (20:21 +0000)]
Revert r233206
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@233213
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Reid Kleckner [Wed, 25 Mar 2015 20:10:36 +0000 (20:10 +0000)]
WinEH: Create an unwind help alloca for __CxxFrameHandler3 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@233209
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Duncan P. N. Exon Smith [Wed, 25 Mar 2015 19:57:42 +0000 (19:57 +0000)]
Linker: Rewrite dwarfdump checks from r233164
Rewrite the checks from r233164 that I temporarily disabled in r233165.
It turns out that the line-tables only debug info we emit from `llc` is
(intentionally) different on Linux than on Darwin. r218129 started
skipping emission of subprograms with no inlined subroutines, and
r218702 was a spiritual revert of that behaviour for Darwin.
I think we can still test this in a platform-neutral way.
- Stop checking for the possibly missing `DW_TAG_subprogram` defining
the debug info for the real version of `@foo`.
- Start checking the line tables, ensuring that the right debug info
was used to generate them (grabbing `DW_AT_low_pc` from the compile
unit).
- I changed up the line numbers used in the "weak" version so it's
easier to follow.
This should hopefully finish off PR22792.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@233207
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Krzysztof Parzyszek [Wed, 25 Mar 2015 19:51:52 +0000 (19:51 +0000)]
[Hexagon] Keep the bare getSubtargetImpl for now
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@233206
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Kit Barton [Wed, 25 Mar 2015 19:36:23 +0000 (19:36 +0000)]
Add Hardware Transactional Memory (HTM) Support
This patch adds Hardware Transaction Memory (HTM) support supported by ISA 2.07
(POWER8). The intrinsic support is based on GCC one [1], but currently only the
'PowerPC HTM Low Level Built-in Function' are implemented.
The HTM instructions follows the RC ones and the transaction initiation result
is set on RC0 (with exception of tcheck). Currently approach is to create a
register copy from CR0 to GPR and comapring. Although this is suboptimal, since
the branch could be taken directly by comparing the CR0 value, it generates code
correctly on both test and branch and just return value. A possible future
optimization could be elimitate the MFCR instruction to branch directly.
The HTM usage requires a recently newer kernel with PPC HTM enabled. Tested on
powerpc64 and powerpc64le.
This is send along a clang patch to enabled the builtins and option switch.
[1] https://gcc.gnu.org/onlinedocs/gcc/PowerPC-Hardware-Transactional-Memory-Built-in-Functions.html
Phabricator Review: http://reviews.llvm.org/D8247
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@233204
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Rafael Espindola [Wed, 25 Mar 2015 19:24:39 +0000 (19:24 +0000)]
clang-format bits of code to make another patch readable.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@233203
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Peter Collingbourne [Wed, 25 Mar 2015 17:58:09 +0000 (17:58 +0000)]
Simplify missing-file-line.ll test.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@233201
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Peter Collingbourne [Wed, 25 Mar 2015 17:44:49 +0000 (17:44 +0000)]
DebugInfo: Permit DW_TAG_structure_type, DW_TAG_member, DW_TAG_typedef tags with empty file names.
Some languages, such as Go, have pre-defined structure types (e.g. "string"
is essentially a pointer/length pair) or pre-defined "typedef" types
(e.g. "error" is essentially a typedef for a specific interface type).
Such types do not have associated source location, so a Go frontend would
be correct not to associate a file name with such types.
This change relaxes the DIType verifier to permit unlocated types with
these tags.
Differential Revision: http://reviews.llvm.org/D8588
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@233200
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Sanjay Patel [Wed, 25 Mar 2015 17:36:01 +0000 (17:36 +0000)]
[X86, AVX] improve insertion into zero element of 256-bit vector
This patch allows AVX blend instructions to handle insertion into the low
element of a 256-bit vector for the appropriate data types.
For f32, instead of:
vblendps $1, %xmm1, %xmm0, %xmm1 ## xmm1 = xmm1[0],xmm0[1,2,3]
vblendps $15, %ymm1, %ymm0, %ymm0 ## ymm0 = ymm1[0,1,2,3],ymm0[4,5,6,7]
we get:
vblendps $1, %ymm1, %ymm0, %ymm0 ## ymm0 = ymm1[0],ymm0[1,2,3,4,5,6,7]
For f64, instead of:
vmovsd %xmm1, %xmm0, %xmm1 ## xmm1 = xmm1[0],xmm0[1]
vblendpd $3, %ymm1, %ymm0, %ymm0 ## ymm0 = ymm1[0,1],ymm0[2,3]
we get:
vblendpd $1, %ymm1, %ymm0, %ymm0 ## ymm0 = ymm1[0],ymm0[1,2,3]
For the hardware-neglected integer data types, I left a TODO comment in the
code and added regression tests for a follow-on patch.
Differential Revision: http://reviews.llvm.org/D8609
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@233199
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Sanjay Patel [Wed, 25 Mar 2015 17:34:11 +0000 (17:34 +0000)]
use update_llc_test_checks.py to tighten checking in these tests
1. There were no CHECK-LABELs, so we could match instructions from the wrong function.
2. The use of zero operands meant multiple xor instructions could match some CHECKs.
3. The test was over-specified to need a Sandybridge CPU and Darwin triple.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@233198
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Benjamin Kramer [Wed, 25 Mar 2015 17:12:36 +0000 (17:12 +0000)]
llvm-jitlistener: Add missing include.
This code is only compiled when LLVM_USE_INTEL_JITEVENTS, but at least we have
one buildbot where that's the case :)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@233197
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Benjamin Kramer [Wed, 25 Mar 2015 16:49:59 +0000 (16:49 +0000)]
[APInt] Add an isSplat helper and use it in some places.
To complement getSplat. This is more general than the binary
decomposition method as it also handles non-pow2 splat sizes.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@233195
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Benjamin Kramer [Wed, 25 Mar 2015 15:36:57 +0000 (15:36 +0000)]
[Hexagon] Pattern match a CTZ loop into a call to countTrailingZeros.
No functional change intended.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@233192
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Benjamin Kramer [Wed, 25 Mar 2015 15:27:58 +0000 (15:27 +0000)]
[ARM] Rewrite .save/.vsave emission with bit math
Hopefully makes it a bit easier to understand what's going on.
No functional change intended.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@233191
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Daniel Jasper [Wed, 25 Mar 2015 14:35:40 +0000 (14:35 +0000)]
Make exit-code test use same mechanism as existing one.
The other version doesn't properly work with our internal test runner,
which sets pipefail.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@233188
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Rafael Espindola [Wed, 25 Mar 2015 13:16:53 +0000 (13:16 +0000)]
Fix fixup evaluation when deciding what to relocate with.
The previous logic was to first try without relocations at all
and failing that stop on the first defined symbol.
That was inefficient and incorrect in the case part of the
expression could be simplified and another part could not
(see included test).
We now stop the evaluation when we get to a variable whose value
can change (i.e. is weak).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@233187
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Lang Hames [Wed, 25 Mar 2015 12:32:36 +0000 (12:32 +0000)]
[Orc] Remove another unnecessary typedef.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@233184
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Andrea Di Biagio [Wed, 25 Mar 2015 12:22:37 +0000 (12:22 +0000)]
[optnone] Skip pass Float2Int on optnone functions.
Added test Float2Int/float2int-optnone.ll to verify that pass Float2Int
is not run on optnone functions.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@233183
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Lang Hames [Wed, 25 Mar 2015 12:11:48 +0000 (12:11 +0000)]
[Orc][lli] Add a very simple Orc-based lazy JIT to lli.
This ensures that we're building and testing the CompileOnDemand layer, at least
in a basic way.
Currently x86-64 only, and with limited to no library calls enabled (depending
on host platform). Patches welcome. ;)
To enable access to the lazy JIT, this patch replaces the '-use-orcmcjit' lli
option with a new option:
'-jit-kind={ mcjit | orc-mcjit | orc-lazy }'.
All regression tests are updated to use the new option, and one trivial test of
the new lazy JIT is added.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@233182
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Andrea Di Biagio [Wed, 25 Mar 2015 11:44:19 +0000 (11:44 +0000)]
[X86] Simplify check lines in tests. No functional change.
Also, removed unused check lines from test atomic6432.ll.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@233181
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James Molloy [Wed, 25 Mar 2015 10:03:42 +0000 (10:03 +0000)]
Reapply r233062: "float2int": Add a new pass to demote from float to int where possible.
Now with a fix for PR23008 and extra regression test.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@233175
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Justin Bogner [Wed, 25 Mar 2015 08:07:47 +0000 (08:07 +0000)]
test: Fix the dependencies for the check-llvm-* targets
In r233009 we gained specific check-llvm-* build targets for invoking
specific parts of the test suite, but they were copying the
dependencies for check-all, rather than just listing the dependencies
for check-llvm.
This moves the creation of these targets next to the check-llvm
target, and uses that target's configuration rather than the check-all
config.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@233174
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Rafael Espindola [Wed, 25 Mar 2015 04:36:20 +0000 (04:36 +0000)]
Fix build.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@233171
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Craig Topper [Wed, 25 Mar 2015 04:16:50 +0000 (04:16 +0000)]
[X86] Remove GetCpuIDAndInfo, GetCpuIDAndInfoEx and DetectFamilyModel functions from X86 MC layer. They haven't been used since CPU autodetection was removed from X86Subtarget.cpp.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@233170
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Lang Hames [Wed, 25 Mar 2015 04:00:34 +0000 (04:00 +0000)]
[Orc] Remove extraneous 'typename'. This should cheer the bots up.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@233168
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Lang Hames [Wed, 25 Mar 2015 02:45:50 +0000 (02:45 +0000)]
[Orc] Refactor JITCompileCallbackManagerBase and CompileOnDemandLayer to support
target-independent callback management.
This is a prerequisite for adding orc-based lazy-jitting to lli.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@233166
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Duncan P. N. Exon Smith [Wed, 25 Mar 2015 02:43:04 +0000 (02:43 +0000)]
Linker: Temporarily disable dwarfdump checks from r233164
At least one Linux bot [1] doesn't like my dwarfdump checks, so I've
disable those until I can investigate what's going on there. I'll
continue to track this in PR22792.
[1]: http://bb.pgr.jp/builders/cmake-llvm-x86_64-linux/builds/22863
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@233165
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Duncan P. N. Exon Smith [Wed, 25 Mar 2015 02:26:32 +0000 (02:26 +0000)]
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@233164
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Chandler Carruth [Wed, 25 Mar 2015 00:50:21 +0000 (00:50 +0000)]
[ADT] Teach MapVector to support a swap member. Will be used in
a subsequent commit in Clang.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@233159
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Rafael Espindola [Wed, 25 Mar 2015 00:45:41 +0000 (00:45 +0000)]
Fix warning on non-assert build.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@233158
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Rafael Espindola [Wed, 25 Mar 2015 00:25:37 +0000 (00:25 +0000)]
Produce an error instead of asserting on invalid .sleb128/.uleb128.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@233155
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Paul Robinson [Wed, 25 Mar 2015 00:10:24 +0000 (00:10 +0000)]
'optnone' should not disable DAG combiner.
Reverts the code change from r221168 and the relevant test.
It was a mistake to disable the combiner, and based on the ultimate
definition of 'optnone' we shouldn't have considered the test case
as failing in the first place.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@233153
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Philip Reames [Tue, 24 Mar 2015 23:54:54 +0000 (23:54 +0000)]
!invariant.load semantics with potentially clobbering calls
A load from an invariant location is assumed to not alias any otherwise potentially aliasing stores. Our implementation only applied this rule to store instructions themselves whereas they it should apply for any memory accessing instruction. This results in both FRE and PRE becoming more effective at eliminating invariant loads.
Note that as a follow on change I will likely move this into AliasAnalysis itself. That's where the TBAA constant flag is handled and the semantics are essentially the same. I'd like to separate the semantic change from the refactoring and thus have extended the hack that's already in MemoryDependenceAnalysis for this change.
Differential Revision: http://reviews.llvm.org/D8591
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@233140
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Rafael Espindola [Tue, 24 Mar 2015 23:48:44 +0000 (23:48 +0000)]
Don't be over eager in evaluating a subtraction with a weak symbol.
In a subtraction of the form A - B, if B is weak, there is no way to represent
that on ELF since all relocations add the value of a symbol.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@233139
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Reid Kleckner [Tue, 24 Mar 2015 23:46:01 +0000 (23:46 +0000)]
X86: Fix frameescape when not using an FP
We can't use TargetFrameLowering::getFrameIndexOffset directly, because
Win64 really wants the offset from the stack pointer at the end of the
prologue. Instead, use X86FrameLowering::getFrameIndexOffsetFromSP(),
which is a pretty close approximiation of that. It fails to handle cases
with interestingly large stack alignments, which is pretty uncommon on
Win64 and is TODO.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@233137
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Justin Bogner [Tue, 24 Mar 2015 23:44:03 +0000 (23:44 +0000)]
Update a test I missed in r233132
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@233134
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Andrew Kaylor [Tue, 24 Mar 2015 23:37:10 +0000 (23:37 +0000)]
Disabling warnings for MSVC build to enable /W4 use.
Differential Revision: http://reviews.llvm.org/D8572
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@233133
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Justin Bogner [Tue, 24 Mar 2015 23:34:36 +0000 (23:34 +0000)]
llvm-cov: Require a subcommand when invoked as llvm-cov
A while ago llvm-cov gained support for clang's instrumentation based
profiling in addition to its gcov support, and subcommands were added
to choose which behaviour to use. When no subcommand was specified, we
fell back to gcov compatibility with a warning that a subcommand would
be required in the future. Now, we require the subcommand.
Note that if the basename of llvm-cov is gcov (via symlink or
hardlink, for example), we still use the gcov compatible behaviour
with no subcommand required.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@233132
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David Blaikie [Tue, 24 Mar 2015 23:34:31 +0000 (23:34 +0000)]
Opaque Pointer Types: GEP API migrations to specify the gep type explicitly
The changes to InstCombine (& SCEV) do seem a bit silly - it doesn't make
anything obviously better to have the caller access the pointers element
type (the thing I'm trying to remove) than the GEP itself, but it's a
helpful migration step. This will allow me to more obviously lock down
GEP (& Load, etc) API usage, then fix all the code that accesses pointer
element types except the places that need to be removed (most of the
InstCombines) anyway - at which point I'll need to just remove all that
code because it won't be meaningful anymore (there will be no pointer
types, so no bitcasts to combine)
SCEV looks like it'll need some restructuring - we'll have to do a bit
more work for GEP canonicalization, since it'll depend on how it's used
if we can even manage to canonicalize it to a non-ugly GEP. I guess we
can do some fun stuff like voting (do 2 out of 3 load from the GEP with
a certain type that gives a pretty GEP? Does every typed use of the GEP
use either a specific type or a generic type (i8*, etc)?)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@233131
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Frederic Riss [Tue, 24 Mar 2015 23:11:07 +0000 (23:11 +0000)]
[dsymutil] Temporarily disable some tests on windows.
It seems one windows bot fails since I added ilne table linking to
llvm-dsymutil (see r232333 commit thread).
Disable the affected tests until I can figure out what's happening.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@233130
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Sanjay Patel [Tue, 24 Mar 2015 22:39:29 +0000 (22:39 +0000)]
optimize the AVX2 (integer) version of vperm2 into a shuffle
...because this is what happens when an instruction
set puts its underwear on after its pants.
This is an extension of r232852, r233100, and 233110:
http://llvm.org/viewvc/llvm-project?view=revision&revision=232852
http://llvm.org/viewvc/llvm-project?view=revision&revision=233100
http://llvm.org/viewvc/llvm-project?view=revision&revision=233110
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@233127
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David Blaikie [Tue, 24 Mar 2015 22:38:16 +0000 (22:38 +0000)]
Opaque Pointer Types: GEP API migrations to specify the gep type explicitly
The changes to InstCombine do seem a bit silly - it doesn't make
anything obviously better to have the caller access the pointers element
type (the thing I'm trying to remove) than the GEP itself, but it's a
helpful migration step. This will allow me to more obviously lock down
GEP (& Load, etc) API usage, then fix all the code that accesses pointer
element types except the places that need to be removed (most of the
InstCombines) anyway - at which point I'll need to just remove all that
code because it won't be meaningful anymore (there will be no pointer
types, so no bitcasts to combine)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@233126
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Philip Reames [Tue, 24 Mar 2015 22:28:45 +0000 (22:28 +0000)]
Merge empty landing pads in SimplifyCFG
This patch tries to merge duplicate landing pads when they branch to a common shared target.
Given IR that looks like this:
lpad1:
%exn = landingpad {i8*, i32} personality i32 (...)* @__gxx_personality_v0
cleanup
br label %shared_resume
lpad2:
%exn2 = landingpad {i8*, i32} personality i32 (...)* @__gxx_personality_v0
cleanup
br label %shared_resume
shared_resume:
call void @fn()
ret void
}
We can rewrite the users of both landing pad blocks to use one of them. This will generally allow the shared_resume block to be merged with the common landing pad as well.
Without this change, tail duplication would likely kick in - creating N (2 in this case) copies of the shared_resume basic block.
Differential Revision: http://reviews.llvm.org/D8297
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@233125
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Rafael Espindola [Tue, 24 Mar 2015 22:20:19 +0000 (22:20 +0000)]
Add -m -m elf_x86_64 to gold invocations.
Otherwise the tests would fail if the default was not elf_x86_64.
This fixes PR22966.
Patch by H.J. Lu!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@233124
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David Blaikie [Tue, 24 Mar 2015 21:50:35 +0000 (21:50 +0000)]
Revert "Remove an InstCombine that seems to have become redundant."
Assertion fires in compiler-rt. Guess it does fire..
This reverts commit r233116.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@233121
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Rafael Espindola [Tue, 24 Mar 2015 21:47:31 +0000 (21:47 +0000)]
Reset the CFA offset at the start of every FDE.
This fixes PR21515.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@233120
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Peter Collingbourne [Tue, 24 Mar 2015 21:47:03 +0000 (21:47 +0000)]
AArch64: use a different means to determine whether to byte swap relocations.
This code depended on a bug in the FindAssociatedSection function that would
cause it to return the wrong result for certain absolute expressions. Instead,
use EvaluateAsRelocatable.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@233119
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Peter Collingbourne [Tue, 24 Mar 2015 21:47:00 +0000 (21:47 +0000)]
MC: Add more stringent symbol checking to test.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@233118
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David Blaikie [Tue, 24 Mar 2015 21:31:31 +0000 (21:31 +0000)]
Remove an InstCombine that seems to have become redundant.
Assert that this doesn't fire - I'll remove all of this later, but just
leaving it in for a while in case this is firing & we just don't have
test coverage.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@233116
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Sanjay Patel [Tue, 24 Mar 2015 20:36:42 +0000 (20:36 +0000)]
[X86, AVX] instcombine vperm2 intrinsics with zero inputs into shuffles
This is the IR optimizer follow-on patch for D8563: the x86 backend patch
that converts this kind of shuffle back into a vperm2.
This is also a continuation of the transform that started in D8486.
In that patch, Andrea suggested that we could convert vperm2 intrinsics that
use zero masks into a single shuffle.
This is an implementation of that suggestion.
Differential Revision: http://reviews.llvm.org/D8567
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@233110
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Rafael Espindola [Tue, 24 Mar 2015 20:26:55 +0000 (20:26 +0000)]
[llvm-readobj] add support for macho universal binary.
Patch by Keyue Hu (Chilledheart)!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@233107
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Hans Wennborg [Tue, 24 Mar 2015 20:07:08 +0000 (20:07 +0000)]
Revert r233062 ""float2int": Add a new pass to demote from float to int where possible."
This caused PR23008, compiles failing with: "Use still stuck around after Def is
destroyed: %.sroa.speculated"
Also reverting follow-up r233064.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@233105
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Sanjoy Das [Tue, 24 Mar 2015 19:29:22 +0000 (19:29 +0000)]
[IRCE] Fix how IRCE checks for no-sign-overflow.
IRCE requires the induction variables it handles to not sign-overflow.
The current scheme of checking if sext({X,+,S}) == {sext(X),+,sext(S)}
fails when SCEV simplifies sext(X) too. After this change we //also//
check no-signed-wrap by looking at the flags set on the SCEVAddRecExpr.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@233102
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Sanjoy Das [Tue, 24 Mar 2015 19:29:18 +0000 (19:29 +0000)]
[IRCE] Fix a regression introduced in r232444.
IRCE should not try to eliminate range checks that check an induction
variable against a loop-varying length.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@233101
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Sanjay Patel [Tue, 24 Mar 2015 19:19:07 +0000 (19:19 +0000)]
[X86, AVX] recognize shufflevector with zero input as a vperm2 (PR22984)
vperm2x128 instructions have the special ability (aka free hardware capability)
to shuffle zero values into a vector.
This patch recognizes that type of shuffle and generates the appropriate
control byte.
https://llvm.org/bugs/show_bug.cgi?id=22984
Differential Revision: http://reviews.llvm.org/D8563
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@233100
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Duncan P. N. Exon Smith [Tue, 24 Mar 2015 17:34:33 +0000 (17:34 +0000)]
DebugInfo: Reorder definitions of MDLocation and MDFile, NFC
Move definition of `MDLocation` after `MDLocalScope` so that the latter
is available for casts in the former. Similarly, move the definition of
`MDFile` as early as possible so that other classes can cast to it in
their definitions. (Follow-up commits will take advantage of this.)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@233096
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Duncan P. N. Exon Smith [Tue, 24 Mar 2015 17:32:19 +0000 (17:32 +0000)]
Verifier: Start recursing into !dbg attachments
The main verifier already recurses through the other entry points, so we
might as well descend here too.
This temporarily duplicates some work already done in
`verifyDebugInfo()`, but eventually I'll be removing the other side.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@233095
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Duncan P. N. Exon Smith [Tue, 24 Mar 2015 17:18:03 +0000 (17:18 +0000)]
Verifier: !llvm.dbg.cu must point at compile units
Duplicate this check from `verifyDebugInfo()`.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@233094
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Duncan P. N. Exon Smith [Tue, 24 Mar 2015 16:44:29 +0000 (16:44 +0000)]
DebugInfo: Add MDLocalScope, a legal scope for locals
Add a subclass of `MDScope` to explicitly categorize the legal scopes
for locals -- in particular, scopes that are legal for `MDLocation`,
`MDLexicalBlockBase`, and `MDLocalVariable`. This provides a convenient
`isa<>` target for the verifier, and eventually I'll be changing the
above classes' `getScope()` to specifically return it. Currently, its
subclasses are `MDSubprogram`, `MDLexicalBlock`, and
`MDLexicalBlockFile`.
I've gone with `MDLocalScope` for now -- a little ambiguous since it's a
scope *for* locals, not a scope that's local -- but I'm open to more
descriptive names if someone can think of something better. Regardless,
the code docs should make it clear enough.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@233092
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David Blaikie [Tue, 24 Mar 2015 16:33:19 +0000 (16:33 +0000)]
Refactor: Simplify boolean expressions in lib/Analysis
Simplify boolean expressions using `true` and `false` with `clang-tidy`
Patch by Richard Thomson.
Reviewed By: nlewycky
Differential Revision: http://reviews.llvm.org/D8528
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@233091
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David Blaikie [Tue, 24 Mar 2015 16:24:01 +0000 (16:24 +0000)]
Refactor: Simplify boolean expressions in AArch64 target
Simplify boolean expressions using `true` and `false` with `clang-tidy`
Patch by Richard Thomson.
Reviewed By: rengolin
Differential Revision: http://reviews.llvm.org/D8525
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@233089
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Daniel Sanders [Tue, 24 Mar 2015 15:19:14 +0000 (15:19 +0000)]
[mips] Support 16-bit offsets for 'm' inline assembly memory constraint.
Reviewers: vkalintiris
Reviewed By: vkalintiris
Subscribers: llvm-commits
Differential Revision: http://reviews.llvm.org/D8435
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@233086
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Marek Olsak [Tue, 24 Mar 2015 13:40:38 +0000 (13:40 +0000)]
R600/SI: Insert more NOPs after READLANE on VI, don't use NOPs on CI
This is a candidate for stable.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@233080
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Marek Olsak [Tue, 24 Mar 2015 13:40:34 +0000 (13:40 +0000)]
R600/SI: Select V_BFE_U32 for and+shift with a non-literal offset
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@233079
91177308-0d34-0410-b5e6-
96231b3b80d8
Marek Olsak [Tue, 24 Mar 2015 13:40:27 +0000 (13:40 +0000)]
R600/SI: Custom-select 32-bit S_BFE from bitwise opcodes
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@233078
91177308-0d34-0410-b5e6-
96231b3b80d8
Marek Olsak [Tue, 24 Mar 2015 13:40:21 +0000 (13:40 +0000)]
R600/SI: Improve BFM support
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@233077
91177308-0d34-0410-b5e6-
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Marek Olsak [Tue, 24 Mar 2015 13:40:15 +0000 (13:40 +0000)]
R600/SI: Use V_FRACT_F64 for faster 64-bit floor on SI
Other f64 opcodes not supported on SI can be lowered in a similar way.
v2: use complex VOP3 patterns
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@233076
91177308-0d34-0410-b5e6-
96231b3b80d8
Marek Olsak [Tue, 24 Mar 2015 13:40:08 +0000 (13:40 +0000)]
R600/SI: Expand fract to floor, then only select V_FRACT on CI
V_FRACT is buggy on SI.
R600-specific code is left intact.
v2: drop the multiclass, use complex VOP3 patterns
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@233075
91177308-0d34-0410-b5e6-
96231b3b80d8