Commit Graph

19040 Commits

Author SHA1 Message Date
Igor Breger ed43f15637 Add new tests for EXTRACT_VECTOR_ELT (vector of packed i8/16/i32/i64/ps/pd data)
llvm-svn: 294565
2017-02-09 07:39:19 +00:00
Craig Topper 50f3d1452c [X86] Clzero intrinsic and its addition under znver1
This patch does the following.

1. Adds an Intrinsic int_x86_clzero which works with __builtin_ia32_clzero
2. Identifies clzero feature using cpuid info. (Function:8000_0008, Checks if EBX[0]=1)
3. Adds the clzero feature under znver1 architecture.
4. The custom inserter is added in Lowering.
5. A testcase is added to check the intrinsic.
6. The clzero instruction is added to assembler test.

Patch by Ganesh Gopalasubramanian with a couple formatting tweaks, a disassembler test, and using update_llc_test.py from me.

Differential revision: https://reviews.llvm.org/D29385

llvm-svn: 294558
2017-02-09 04:27:34 +00:00
Arnold Schwaighofer 26f016f143 SwiftCC: swifterror register cannot be as the base register
Functions that have a dynamic alloca require a base register which is defined to
be X19 on AArch64 and r6 on ARM.  We have defined the swifterror register to be
the same register. Use a different callee save register for swifterror instead:

 X21 on AArch64
 R8 on ARM

rdar://30433803

llvm-svn: 294551
2017-02-09 01:52:17 +00:00
Tim Northover e041841811 GlobalISel: legalize G_FPOW to a libcall on AArch64.
There's no instruction to implement it.

llvm-svn: 294531
2017-02-08 23:23:39 +00:00
Tim Northover b38b4e2464 GlobalISel: translate @llvm.pow intrinsic to G_FPOW.
It'll usually be immediately legalized back to a libcall, but occasionally
something can be done with it so we'd just as well enable that flexibility from
the start.

llvm-svn: 294530
2017-02-08 23:23:32 +00:00
Arnold Schwaighofer db7bbcbe78 [ARM/AArch ISel] SwiftCC: First parameters that are marked swiftself are not 'this returns'
We mark X0 as preserved by a call that passes the returned parameter.

 x0 = ...
 fun(x0) // no implicit def of x0

This no longer is valid if we pass the parameter in a different register then
the returned value as is the case with a swiftself parameter (passed in x20).

x20 = ...
fun(x20) // there should be an implict def of x8

rdar://30425845

llvm-svn: 294527
2017-02-08 22:30:47 +00:00
Amara Emerson c3a4b282bb Revert r294437 as it broke an asan buildbot.
llvm-svn: 294523
2017-02-08 21:41:16 +00:00
Tim Northover 9dd78f8a6d GlobalISel: select G_[SU]MULH on AArch64.
Hopefully this'll be nuked by tablegen pretty soon, but until then it's
reasonably important for supporting C++ operator new[].

llvm-svn: 294520
2017-02-08 21:22:25 +00:00
Tim Northover 0a9b27933a GlobalISel: expand mul-with-overflow into mul-hi on AArch64.
AArch64 has specific instructions to multiply two numbers at double the width
and produce the high part of the result. These can be used to implement LLVM's
mul.with.overflow instructions fairly simply. Helps with C++ operator new[].

llvm-svn: 294519
2017-02-08 21:22:15 +00:00
Simon Pilgrim 696e27e1ec [X86][SSE] Regenerate scalar integer conversions to float tests
llvm-svn: 294499
2017-02-08 19:01:27 +00:00
Tim Northover e9600d861c GlobalISel: select G_VASTART on iOS AArch64.
The AAPCS ABI is substantially more complicated so that's coming in a separate
patch. For now we can generate correct code for iOS though.

llvm-svn: 294493
2017-02-08 17:57:27 +00:00
Tim Northover f19d467ff6 GlobalISel: translate @llvm.va_start intrinsic.
Because we need to preserve the memory access being performed we need a
separate instruction to represent this.

llvm-svn: 294492
2017-02-08 17:57:20 +00:00
Sanjay Patel 28ef27e3dc [x86] add AVX512vl target for more coverage; NFC
llvm-svn: 294462
2017-02-08 15:22:52 +00:00
Amaury Sechet 887117fb3d Add test case for pr31890. NFC
llvm-svn: 294455
2017-02-08 14:35:48 +00:00
Diana Picus e79e5ee244 Fix test to work on swift/cyclone too
I forgot to remove the neonfp target feature from the test, which means we'd
have trouble selecting VADDS on targets that have neonfp enabled by default.

llvm-svn: 294451
2017-02-08 14:23:30 +00:00
Konstantin Zhuravlyov 9f89ede107 [AMDGPU] Add target information that is required by tools to metadata
Differential Revision: https://reviews.llvm.org/D28760#fb670e28

llvm-svn: 294449
2017-02-08 14:05:23 +00:00
Diana Picus 4fa83c03fd [ARM] GlobalISel: Add FPR reg bank
Add a register bank for floating point values and select simple instructions
using them (add, copies from GPR).

This assumes that the hardware can cope with a single precision add (VADDS)
instruction, so the legalizer will treat G_FADD as legal and the instruction
selector will refuse to select if the hardware doesn't support it. In the future
we'll want to be more careful about this, and legalize to libcalls if we have to
use soft float.

llvm-svn: 294442
2017-02-08 13:23:04 +00:00
Amara Emerson fecdb36f92 [AArch64][TableGen] Skip tied result operands for InstAlias
This patch checks the number of operands in the resulting
instruction instead of just the alias, then skips over
tied operands when generating the printing method.

This allows us to generate the preferred assembly syntax
for the AArch64 'ins' instruction, which should always be
displayed as 'mov' according to the ARMARM.

Several unit tests have changed as a result, but only to
reflect the preferred disassembly.

Some other InstAlias patterns (movk/bic/orr) needed a
slight adjustment to stop them becoming the default
and breaking other unit tests.

Patch by Graham Hunter.

Differential Revision: https://reviews.llvm.org/D29219

llvm-svn: 294437
2017-02-08 11:28:08 +00:00
Dylan McKay db370bd6ef [AVR] XFAIL a set of failing CodeGen tests
There are about 3 underlying bugs causing the tests to fail.

On top of that, some tests just we're 'generic' enough. i.e. 32-bit
registers.

llvm-svn: 294434
2017-02-08 10:24:18 +00:00
Matt Arsenault 417e0072d6 AMDGPU: Enable InferAddressSpaces
llvm-svn: 294408
2017-02-08 06:16:04 +00:00
Craig Topper 3fd463a15a [X86] Add test for clflushopt intrinsic and only enable it to be selected if the feature flag is set.
llvm-svn: 294407
2017-02-08 05:45:46 +00:00
Amaury Sechet 4b946916ac [DAGCombiner] Push truncate through adde when the carry isn't used.
Summary: As per title.

Reviewers: mkuper, spatel, bkramer, RKSimon, zvi

Subscribers: llvm-commits

Differential Revision: https://reviews.llvm.org/D29528

llvm-svn: 294394
2017-02-08 00:32:36 +00:00
Simon Pilgrim 39c138cc76 [X86][SSE] Add SSE2 build vector insertion tests
llvm-svn: 294365
2017-02-07 22:23:12 +00:00
Simon Pilgrim 90ee0b2786 [X86][SSE] Add additional v4i32/v8i16/v16i8 build vector insertion tests
With particular interest in cases where we don't make use of implicit zeroing or fail to break register dependencies

llvm-svn: 294363
2017-02-07 22:03:37 +00:00
Hans Wennborg 819e3e02a9 [X86] Disable conditional tail calls (PR31257)
They are currently modelled incorrectly (as calls, which clobber
registers, confusing e.g. Machine Copy Propagation).

Reverting until we figure out the proper solution.

llvm-svn: 294348
2017-02-07 20:37:45 +00:00
Tim Northover d0d025ae45 GlobalISel: translate @llvm.va_end intrinsic.
Turns out no-one actually cares about this one (at least) in tree so we can
just drop it entirely.

llvm-svn: 294345
2017-02-07 20:08:59 +00:00
Sanjoy Das 2f63cbcc0c [ImplicitNullCheck] Extend Implicit Null Check scope by using stores
Summary:
This change allows usage of store instruction for implicit null check.

Memory Aliasing Analisys is not used and change conservatively supposes
that any store and load may access the same memory. As a result
re-ordering of store-store, store-load and load-store is prohibited.

Patch by Serguei Katkov!

Reviewers: reames, sanjoy

Reviewed By: sanjoy

Subscribers: atrick, llvm-commits

Differential Revision: https://reviews.llvm.org/D29400

llvm-svn: 294338
2017-02-07 19:19:49 +00:00
Nemanja Ivanovic 17aeb5a260 [PowerPC][Altivec] Add vnot extended mnemonic
Adds the vnot extended mnemonic for the vnor instruction.

Committing on behalf of brunoalr (Bruno Rosa).

Differential Revision: https://reviews.llvm.org/D29225

llvm-svn: 294330
2017-02-07 18:57:29 +00:00
Alexander Timofeev a3dace3619 [AMDGPU] Fix for SIMachineScheduler crash. SI Scheduler should track
lane masks.

	 Differential revision: https://reviews.llvm.org/D29442

llvm-svn: 294324
2017-02-07 17:57:48 +00:00
Krzysztof Parzyszek c8d676ef72 [Hexagon] Remove encoding bits from mapped instructions
- Map A2_zxtb to A2_andir.
- Map PS_call_nr J2_call.
- Map A2_tfr[t|f][new] to A2_padd[t|f][new].
    
Patch by Colin LeMahieu.

llvm-svn: 294320
2017-02-07 17:42:11 +00:00
Artur Pilipenko 469596ef87 Add DAGCombiner load combine tests for {a|s}ext, {a|z|s}ext load nodes
Currently we don't support these nodes, so the tests check the current codegen without load combine. This change makes the review of the change to support these nodes more clear.

Separated from https://reviews.llvm.org/D29591 review.

llvm-svn: 294305
2017-02-07 14:09:37 +00:00
Simon Pilgrim b4a9eeafcc [X86][SSE] Generalized integer absolute tests to test canonical pattern as well as intrinsics
llvm-svn: 294300
2017-02-07 13:15:09 +00:00
Christof Douma d3ed8380e0 [ARM] Make RWPI use movw/movt when available
When constructing global address literals while targeting the RWPI
relocation model. LLVM currently only uses literal pools. If MOVW/MOVT
instructions are available we can use these instead. Beside being more
efficient it allows -arm-execute-only to work with
-relocation-model=RWPI as well.

When we generate MOVW/MOVT for global addresses when targeting the RWPI
relocation model, we need to use base relative relocations. This patch
does the needed plumbing in MC to generate these for MOVW/MOVT.

Differential Revision: https://reviews.llvm.org/D29487

Change-Id: I446786e43a6f5aa9b6a5bb2cd216d60d41c7755d
llvm-svn: 294298
2017-02-07 13:07:12 +00:00
Simon Pilgrim d48b23c2f2 [X86][SSE] Added 256-bit vector tests cases
Exposes some poor codegen with identity shuffle due to bad interaction with insert_subvector(extract_subvector) / concat_subvectors

llvm-svn: 294296
2017-02-07 12:01:36 +00:00
Daniel Jasper 84b3cc394d Revert "[DAGCombiner] (add X, (adde Y, 0, Carry)) -> (adde X, Y, Carry)"
This reverts commit r294186.

On an internal test, this triggers an out-of-memory error on PPC,
presumably because there is another dagcombine that does the exact
opposite triggering and endless loop consuming more and more memory.

Chandler has started at creating a reduced test case and we'll attach it
as soon as possible.

llvm-svn: 294288
2017-02-07 08:57:50 +00:00
Craig Topper 9191c3324a [AVX-512] Add masked and unmasked shift by immediate instructions to load folding tables.
llvm-svn: 294287
2017-02-07 07:31:00 +00:00
Craig Topper 62304d80e3 [AVX-512] Add masked shift instructions to load folding tables.
This adds the masked versions of everything, but the shift by immediate instructions.

llvm-svn: 294286
2017-02-07 07:30:57 +00:00
Craig Topper 45d9ddc687 [AVX-512] Add some of the shift instructions to the load folding tables.
This includes unmasked forms of variable shift and shifting by the lower element of a register.

Still need to do shift by immediate which was not foldable prior to avx512 and all the masked forms.

llvm-svn: 294285
2017-02-07 07:30:54 +00:00
Craig Topper 39d86bb688 [X86] Change the Defs list for VZEROALL/VZEROUPPER back to not including YMM16-31.
llvm-svn: 294277
2017-02-07 04:10:57 +00:00
Craig Topper 190314ce4a [AVX-512] Put the integer stack folding tests in alphabetical order.
llvm-svn: 294276
2017-02-07 04:10:54 +00:00
Matthias Braun f80403d8ee RegisterCoalescer: Fix joinReservedPhysReg()
joinReservedPhysReg() can only deal with a liverange in a single basic
block when copying from a vreg into a physreg.

See also rdar://30306405

Differential Revision: https://reviews.llvm.org/D29436

llvm-svn: 294268
2017-02-07 01:59:39 +00:00
Yaxun Liu 8f844f3960 [AMDGPU] Lower null pointers in static variable initializer
For amdgcn target Clang generates addrspacecast to represent null pointers in private and local address spaces.

    In LLVM codegen, the static variable initializer is lowered by virtual function AsmPrinter::lowerConstant which is target generic. Since addrspacecast is target specific, AsmPrinter::lowerConst

    This patch overrides AsmPrinter::lowerConstant with AMDGPUAsmPrinter::lowerConstant, which is able to lower the target-specific addrspacecast in the null pointer representation so that -1 is co

    Differential Revision: https://reviews.llvm.org/D29284

llvm-svn: 294265
2017-02-07 00:43:21 +00:00
Sanjay Patel cbcef5709f [x86] add tests to show current codegen for vblendv*; NFC
As noted in the comments, we should be able to eliminate cmp ops
in several cases.

llvm-svn: 294263
2017-02-07 00:10:50 +00:00
Tim Northover 868332d6bf GlobalISel: legalize narrow G_SELECTS on AArch64.
Otherwise there aren't any patterns to select them.

llvm-svn: 294261
2017-02-06 23:41:27 +00:00
Krzysztof Parzyszek 5b4a6b67c5 [Hexagon] Adding gp+ to the syntax of gp-relative instructions
Patch by Colin LeMahieu.

llvm-svn: 294258
2017-02-06 23:18:57 +00:00
Simon Pilgrim a93c773833 [X86][SSE] Tests showing the lowering of float/double complex multiplications with fastmath (PR31866)
llvm-svn: 294254
2017-02-06 22:42:43 +00:00
Tim Northover 6f2db57dae GlobalISel: fall back gracefully when we can't map an operand's size.
AArch64 was asserting when it was asked to provide a register-bank of a size it
couldn't deal with (in this case an s128 IMPLICIT_DEF). But we want a robust
fallback path so this isn't allowed.

llvm-svn: 294248
2017-02-06 21:57:06 +00:00
Tim Northover 0e6afbdd77 GlobalISel: legalize G_INSERT instructions
We don't handle all cases yet (see arm64-fallback.ll for an example), but this
is enough to cover most common C++ code so it's a good place to start.

llvm-svn: 294247
2017-02-06 21:56:47 +00:00
Simon Pilgrim 5b2fd59e02 [X86][SSE] Add tests showing missed opportunities to simplify integer absolute instructions
llvm-svn: 294216
2017-02-06 18:57:51 +00:00
John Brawn 3a9c842a9d [AArch64] Fix incorrect MachinePointerInfo in splitStoreSplat
When splitting up one store into several in splitStoreSplat we have to
make sure we get the MachinePointerInfo right, otherwise alias
analysis thinks they all store to the same location. This can then
cause invalid scheduling later on.

Differential Revision: https://reviews.llvm.org/D29446

llvm-svn: 294203
2017-02-06 18:07:20 +00:00