Commit Graph

1279 Commits

Author SHA1 Message Date
Tom Stellard d0c6cf2e8c AMDGPU/GlobalISel: Mark 32-bit G_FADD as legal
Reviewers: arsenm

Reviewed By: arsenm

Subscribers: kzhuravl, wdng, nhaehnle, yaxunl, rovka, kristof.beyls, igorb, dstuttard, tpr, t-tye, llvm-commits

Differential Revision: https://reviews.llvm.org/D38439

llvm-svn: 316815
2017-10-27 23:57:41 +00:00
Matt Arsenault 878827d93a DAG: Fold fma (fneg x), K, y -> fma x, -K, y
llvm-svn: 316753
2017-10-27 09:06:07 +00:00
Konstantin Zhuravlyov 6f8e515185 AMDGPU: Commit missing fence-barrier test
This should have been committed with memory model implementation

llvm-svn: 316680
2017-10-26 17:54:09 +00:00
Marek Olsak 2232243863 AMDGPU: Handle s_buffer_load_dword hazard on SI
Reviewers: arsenm, nhaehnle

Subscribers: kzhuravl, wdng, yaxunl, dstuttard, tpr, llvm-commits, t-tye

Differential Revision: https://reviews.llvm.org/D39171

llvm-svn: 316666
2017-10-26 14:43:02 +00:00
Alexander Richardson d3aa475988 Fix CodeGen/AMDGPU/fcanonicalize-elimination.ll on FreeBSD 11.0
Summary:
On FreeBSD11.0 the FileCheck NOT string "1.0" will be matched by
`.amd_amdgpu_isa "amdgcn-unknown-freebsd11.0--gfx802"` at the end of the
file. Add a CHECK for that directive to avoid failing the test.

Reviewers: rampitec, kzhuravl

Reviewed By: rampitec, kzhuravl

Subscribers: emaste, kzhuravl, wdng, nhaehnle, yaxunl, dstuttard, tpr, t-tye, llvm-commits, krytarowski

Differential Revision: https://reviews.llvm.org/D39306

llvm-svn: 316616
2017-10-25 21:44:21 +00:00
Konstantin Zhuravlyov cff1155035 AMDGPU: Cleanup memory legalizer load/store tests
llvm-svn: 316590
2017-10-25 17:04:46 +00:00
Konstantin Zhuravlyov 538612c885 AMDGPU/NFC: Rename memory legalizer tests:
- memory-legalizer-atomic-load.ll -> memory-legalizer-load.ll
  - memory-legalizer-atomic-store.ll -> memory-legalizer-store.ll

llvm-svn: 316586
2017-10-25 16:45:28 +00:00
Daniil Fukalov 2bfbadcbc1 [inlineasm] Fix crash when number of matched input constraint operands overflows signed char
In a case when number of output constraint operands that has matched input operands
doesn't fit to signed char, TargetLowering::ParseConstraints() can try to access
ConstraintOperands (that is std::vector) with negative index.

Reviewers: rampitec, arsenm

Differential Review: https://reviews.llvm.org/D39125

llvm-svn: 316574
2017-10-25 12:51:32 +00:00
Matt Arsenault 8a752b77a2 DAG: Fix creating select with wrong condition type
This code added in r297930 assumed that it could create
a select with a condition type that is just an integer
bitcast of the selected type. For AMDGPU any vselect is
going to be scalarized (although the vector types are legal),
and all select conditions must be i1 (the same as getSetCCResultType).

This logic doesn't really make sense to me, but there's
never really been a consistent policy in what the select
condition mask type is supposed to be. Try to extend
the logic for skipping the transform for condition types
that aren't setccs. It doesn't seem quite right to me though,
but checking conditions that seem more sensible (like whether the
vselect is going to be expanded) doesn't work since this
seems to depend on that also.

llvm-svn: 316554
2017-10-25 07:14:07 +00:00
Justin Bogner 6c452834a1 MIR: Print the register class or bank in vreg defs
This updates the MIRPrinter to include the regclass when printing
virtual register defs, which is already valid syntax for the
parser. That is, given 64 bit %0 and %1 in a "gpr" regbank,

  %1(s64) = COPY %0(s64)

would now be written as

  %1:gpr(s64) = COPY %0(s64)

While this change alone introduces a bit of redundancy with the
registers block, it allows us to update the tests to be more concise
and understandable and brings us closer to being able to remove the
registers block completely.

Note: We generally only print the class in defs, but there is one
exception. If there are uses without any defs whatsoever, we'll print
the class on all uses. I'm not completely convinced this comes up in
meaningful machine IR, but for now the MIRParser and MachineVerifier
both accept that kind of stuff, so we don't want to have a situation
where we can print something we can't parse.

llvm-svn: 316479
2017-10-24 18:04:54 +00:00
Marek Olsak ce76ea0394 AMDGPU: Add new intrinsic llvm.amdgcn.kill(i1)
Summary:
Kill the thread if operand 0 == false.
llvm.amdgcn.wqm.vote can be applied to the operand.

Also allow kill in all shader stages.

Reviewers: arsenm, nhaehnle

Subscribers: kzhuravl, wdng, yaxunl, dstuttard, tpr, t-tye, llvm-commits

Differential Revision: https://reviews.llvm.org/D38544

llvm-svn: 316427
2017-10-24 10:27:13 +00:00
Marek Olsak 2114fc3bcb AMDGPU: Add llvm.amdgcn.wqm.vote intrinsic
Reviewers: arsenm, nhaehnle

Subscribers: kzhuravl, wdng, yaxunl, dstuttard, tpr, t-tye

Differential Revision: https://reviews.llvm.org/D38543

llvm-svn: 316426
2017-10-24 10:26:59 +00:00
Matt Arsenault b791802aef AMDGPU: Fix default range in non-kernel functions
The range should be assumed to be the hardware maximum
if a workitem intrinsic is used in a callable function
which does not know the restricted limit of the calling
kernel.

llvm-svn: 316346
2017-10-23 17:09:35 +00:00
Justin Bogner d45849f703 Canonicalize a large number of mir tests using update_mir_test_checks
This converts a large and somewhat arbitrary set of tests to use
update_mir_test_checks. I ran the script on all of the tests I expect
to need to modify for an upcoming mir syntax change and kept the ones
that obviously didn't change the tests in ways that might make it
harder to understand.

llvm-svn: 316137
2017-10-18 23:18:12 +00:00
Konstantin Zhuravlyov 8d5e9e110c AMDGPU: Rename MaxFlatWorkgroupSize to MaxFlatWorkGroupSize for consistency
Differential Revision: https://reviews.llvm.org/D38957

llvm-svn: 316097
2017-10-18 17:31:09 +00:00
Wei Ding 7ab1f7a421 AMDGPU : Fix an error for the llvm.cttz implementation.
Differential Revision: http://reviews.llvm.org/D39014

llvm-svn: 316037
2017-10-17 21:49:52 +00:00
Konstantin Zhuravlyov 7dabe9ced7 AMDGPU: Start generating metadata for MaxFlatWorkGroupSize
Differential Revision: https://reviews.llvm.org/D38958

llvm-svn: 316024
2017-10-17 20:03:21 +00:00
Mark Searles 4e3d6160db Use the return value of UpdateNodeOperands(); in some cases, UpdateNodeOperands() modifies the node in-place and using the return value isn’t strictly necessary. However, it does not necessarily modify the node, but may return a resultant node if it already exists in the DAG. See comments in UpdateNodeOperands(). In that case, the return value must be used to avoid such scenarios as an infinite loop (node is assumed to have been updated, so added back to the worklist, and re-processed; however, node hasn’t changed so it is once again passed to UpdateNodeOperands(), assumed modified, added back to worklist; cycle infinitely repeats).
Differential Revision: https://reviews.llvm.org/D38466

llvm-svn: 315957
2017-10-16 23:38:53 +00:00
Alexander Timofeev 9dff31c769 [AMDGPU] : revert r315908
llvm-svn: 315916
2017-10-16 16:57:37 +00:00
Alexander Timofeev 3828242c7e [AMDGPU] Prevent Machine Copy Propagation from replacing live copy with the dead one
Differential revision: https://reviews.llvm.org/D38754

llvm-svn: 315908
2017-10-16 14:35:29 +00:00
Konstantin Zhuravlyov 263f7f6676 AMDGPU: Temporary disable pal metadata check line in llvm-readobj test
It fails on mips

llvm-svn: 315837
2017-10-14 23:42:11 +00:00
Konstantin Zhuravlyov a01d8b0b63 AMDGPU: Bring HSA metadata on par with the specification
Differential Revision: https://reviews.llvm.org/D38753

llvm-svn: 315821
2017-10-14 19:03:51 +00:00
Konstantin Zhuravlyov b3c605d680 llvm-readobj: Print AMDGPU note contents
Differential Revision: https://reviews.llvm.org/D38752

llvm-svn: 315819
2017-10-14 18:21:42 +00:00
Konstantin Zhuravlyov 7b4be1ed89 AMDGPU: Cleanup elf-notes.ll test
llvm-svn: 315816
2017-10-14 17:36:53 +00:00
Konstantin Zhuravlyov 716af741e9 llvm-readobj: Print AMDGPU note type names
Differential Revision: https://reviews.llvm.org/D38751

llvm-svn: 315813
2017-10-14 16:43:46 +00:00
Konstantin Zhuravlyov eda425edd4 AMDGPU: Do not emit deprecated notes for code object v3
Differential Revision: https://reviews.llvm.org/D38749

llvm-svn: 315810
2017-10-14 15:59:07 +00:00
Konstantin Zhuravlyov 9c05b2bc3b AMDGPU: Add support for isa version note
- Emit NT_AMD_AMDGPU_ISA
  - Add assembler parsing for isa version directive
    - If isa version directive does not match command line arguments, then return error

Differential Revision: https://reviews.llvm.org/D38748

llvm-svn: 315808
2017-10-14 15:40:33 +00:00
Matt Arsenault e11d8aca77 AMDGPU: Implement hasBitPreservingFPLogic
llvm-svn: 315754
2017-10-13 21:10:22 +00:00
Matt Arsenault 550c66d10f AMDGPU: Look for src mods before fp_extend
When selecting modifiers for mad_mix instructions,
look at fneg/fabs that occur before the conversion.

llvm-svn: 315748
2017-10-13 20:45:49 +00:00
Matt Arsenault 4d70754e3c AMDGPU: Implement isFPExtFoldable
This helps match v_mad_mix* in some cases.

llvm-svn: 315744
2017-10-13 20:18:59 +00:00
Wei Ding 5676acad9e Implement custom lowering for ISD::CTTZ_ZERO_UNDEF and ISD::CTTZ.
Differential Revision: http://reviews.llvm.org/D37348

llvm-svn: 315610
2017-10-12 19:37:14 +00:00
Tim Renouf c8ffffe462 [AMDGPU] For amdpal, widen interpolation mode workaround
Summary:
The interpolation mode workaround ensures that at least one
interpolation mode is enabled in PSInputAddr. It does not also check
PSInputEna on the basis that the user might enable bits in that
depending on run-time state.

However, for amdpal os type, the user does not enable some bits after
compilation based on run-time states; the register values being
generated here are the final ones set in the hardware. Therefore, apply
the workaround to PSInputAddr and PSInputEnable together. (The case
where a bit is set in PSInputAddr but not in PSInputEnable is where the
frontend set up an input arg for a particular interpolation mode, but
nothing uses that input arg. Really we should have an earlier pass that
removes such an arg.)

Reviewers: arsenm, nhaehnle, dstuttard

Subscribers: kzhuravl, wdng, yaxunl, t-tye, llvm-commits

Differential Revision: https://reviews.llvm.org/D37758

llvm-svn: 315591
2017-10-12 16:16:41 +00:00
Konstantin Zhuravlyov c3beb6a075 AMDGPU/NFC: Minor clean ups in PAL metadata
- Move PAL metadata definitions to AMDGPUMetadata
  - Make naming consistent with HSA metadata

Differential Revision: https://reviews.llvm.org/D38745

llvm-svn: 315523
2017-10-11 22:41:09 +00:00
Konstantin Zhuravlyov a63b0f9d20 AMDGPU/NFC: Rename code object metadata as HSA metadata
- Rename AMDGPUCodeObjectMetadata to AMDGPUMetadata (PAL metadata will be included in this file in the follow up change)
  - Rename AMDGPUCodeObjectMetadataStreamer to AMDGPUHSAMetadataStreamer
  - Introduce HSAMD namespace
  - Other minor name changes in function and test names

llvm-svn: 315522
2017-10-11 22:18:53 +00:00
Matt Arsenault f42074b699 AMDGPU: Fix missing skipFunction calls
llvm-svn: 315361
2017-10-10 20:48:36 +00:00
Matt Arsenault d674e0ac0d AMDGPU: Fix failure to select branch with optnone
opt-bisect/optnone disable the AMDGPUUniformAnnotateValues pass.
The heuristic in the custom selector for brcond deferred the
branch uniformity check to the pattern, which would fail.

llvm-svn: 315360
2017-10-10 20:34:49 +00:00
Yaxun Liu de4b88d9a1 [AMDGPU] Lower enqueued blocks and generate runtime metadata
This patch adds a post-linking pass which replaces the function pointer of enqueued
block kernel with a global variable (runtime handle) and adds
runtime-handle attribute to the enqueued block kernel.

In LLVM CodeGen the runtime-handle metadata will be translated to
RuntimeHandle metadata in code object. Runtime allocates a global buffer
for each kernel with RuntimeHandel metadata and saves the kernel address
required for the AQL packet into the buffer. __enqueue_kernel function
in device library knows that the invoke function pointer in the block
literal is actually runtime handle and loads the kernel address from it
and puts it into AQL packet for dispatching.

This cannot be done in FE since FE cannot create a unique global variable
with external linkage across LLVM modules. The global variable with internal
linkage does not work since optimization passes will try to replace loads
of the global variable with its initialization value.

Differential Revision: https://reviews.llvm.org/D38610

llvm-svn: 315352
2017-10-10 19:39:48 +00:00
David Stuttard 51c1b22806 [DAGCombine] Fix for shuffle to vector extend for non power 2 vectors
Summary:
See https://llvm.org/PR33743 for more details

It seems that for non-power of 2 vector sizes, the algorithm can produce
non-matching sizes for input and result causing an assert.

This usually isn't a problem as the isAnyExtend check will weed these out, but
in some cases (most often with lots of undefined values for the mask indices) it
can pass this check for non power of 2 vectors.

Adding in an extra check that ensures that bit size will match for the result
and input (as required)

Subscribers: nhaehnle

Differential Revision: https://reviews.llvm.org/D35241

llvm-svn: 315307
2017-10-10 12:45:45 +00:00
Nicolai Haehnle 312b64f4d7 AMDGPU: Split MUBUF offset into aligned components
Summary:
Atomic buffer operations do not work (and trap on gfx9) when the
components are unaligned, even if their sum is aligned.

Previously, we generated an offset of 4156 without an SGPR by
splitting it as 4095 + 61 (immediate + inline constant). The
highest offset for which we can do this correctly is 4156 = 4092 + 64.

Fixes dEQP-GLES31.functional.ssbo.atomic.*

Reviewers: arsenm

Subscribers: kzhuravl, wdng, yaxunl, dstuttard, tpr, llvm-commits, t-tye

Differential Revision: https://reviews.llvm.org/D37850

llvm-svn: 315302
2017-10-10 12:22:23 +00:00
Stanislav Mekhanoshin de42c29a68 [AMDGPU] New 64 bit div/rem expansion
Old expansion was 20 VGPRs, 78 SGPRs and ~380 instructions.
This expansion is 11 VGPRs, 12 SGPRs and ~120 instructions.

Passes OpenCL conformance test_integer_ops quick_[u]long_math

Differential Revision: https://reviews.llvm.org/D38607

llvm-svn: 315081
2017-10-06 17:24:45 +00:00
Davide Italiano ff829cea8b [PassManager] Run global optimizations after the inliner.
The inliner performs some kind of dead code elimination as it goes,
but there are cases that are not really caught by it. We might
at some point consider teaching the inliner about them, but it
is OK for now to run GlobalOpt + GlobalDCE in tandem as their
benefits generally outweight the cost, making the whole pipeline
faster.

This fixes PR34652.

Differential Revision: https://reviews.llvm.org/D38154

llvm-svn: 314997
2017-10-05 18:06:37 +00:00
Matt Arsenault 2d3f8f333d AMDGPU: Set v2i32 any_extend to expand
llvm-svn: 314993
2017-10-05 17:38:30 +00:00
Konstantin Zhuravlyov aa0835a7ab AMDGPU: Add and set AMDGPU-specific e_flags
Differential Revision: https://reviews.llvm.org/D38556

llvm-svn: 314987
2017-10-05 16:19:18 +00:00
Matt Arsenault aafff87dda AMDGPU: Do not fold clamp instructions when sources are different
Patch by hakzsam (Samuel Pitoiset)

llvm-svn: 314951
2017-10-05 00:13:17 +00:00
Matt Arsenault 9ab1fa6803 AMDGPU: Fix not accounting for instruction size in bundles
These were counted as 0. Fixes branch limit exceeded errors
in some large programs.

llvm-svn: 314944
2017-10-04 22:59:12 +00:00
Konstantin Zhuravlyov 8684f7b4f9 AMDGPU: Correctly set EI_OSABI based on the os
Differential Revision: https://reviews.llvm.org/D38555

llvm-svn: 314943
2017-10-04 22:44:13 +00:00
Konstantin Zhuravlyov 908fa90b51 AMDGPU: Expand setcc for v2i32 and v4i32
llvm-svn: 314852
2017-10-03 21:31:24 +00:00
Tim Renouf 72800f0436 [AMDGPU] implemented pal metadata
Summary:
For the amdpal OS type:

We write an AMDGPU_PAL_METADATA record in the .note section in the ELF
(or as an assembler directive). It contains key=value pairs of 32 bit
ints. It is a merge of metadata from codegen of the shaders, and
metadata provided by the frontend as _amdgpu_pal_metadata IR metadata.
Where both sources have a key=value with the same key, the two values
are ORed together.

This .note record is part of the amdpal ABI and will be documented in
docs/AMDGPUUsage.rst in a future commit.

Eventually the amdpal OS type will stop generating the .AMDGPU.config
section once the frontend has safely moved over to using the .note
records above instead of .AMDGPU.config.

Reviewers: arsenm, nhaehnle, dstuttard

Subscribers: kzhuravl, wdng, yaxunl, llvm-commits, t-tye

Differential Revision: https://reviews.llvm.org/D37753

llvm-svn: 314829
2017-10-03 19:03:52 +00:00
Alexander Timofeev 4651396584 [AMDGPU] Avoid predicated execution of the basic blocks containing scalar
instructions.

Differential revision: https://reviews.llvm.org/D38293

llvm-svn: 314828
2017-10-03 18:55:36 +00:00
Geoff Berry fabedbad11 Revert "Re-enable "[MachineCopyPropagation] Extend pass to do COPY source forwarding""
This reverts commit r314729.

Another bug has been encountered in an out-of-tree target reported by Quentin.

llvm-svn: 314814
2017-10-03 16:59:13 +00:00