History log of /llvm-project-15.0.7/llvm/lib/Target/AMDGPU/SIISelLowering.cpp (Results 1 – 25 of 1060)
Revision (<<< Hide revision tags) (Show revision tags >>>) Date Author Comments
Revision tags: llvmorg-20.1.0, llvmorg-20.1.0-rc3, llvmorg-20.1.0-rc2, llvmorg-20.1.0-rc1, llvmorg-21-init, llvmorg-19.1.7, llvmorg-19.1.6, llvmorg-19.1.5, llvmorg-19.1.4, llvmorg-19.1.3, llvmorg-19.1.2, llvmorg-19.1.1, llvmorg-19.1.0, llvmorg-19.1.0-rc4, llvmorg-19.1.0-rc3, llvmorg-19.1.0-rc2, llvmorg-19.1.0-rc1, llvmorg-20-init, llvmorg-18.1.8, llvmorg-18.1.7, llvmorg-18.1.6, llvmorg-18.1.5, llvmorg-18.1.4, llvmorg-18.1.3, llvmorg-18.1.2, llvmorg-18.1.1, llvmorg-18.1.0, llvmorg-18.1.0-rc4, llvmorg-18.1.0-rc3, llvmorg-18.1.0-rc2, llvmorg-18.1.0-rc1, llvmorg-19-init, llvmorg-17.0.6, llvmorg-17.0.5, llvmorg-17.0.4, llvmorg-17.0.3, llvmorg-17.0.2, llvmorg-17.0.1, llvmorg-17.0.0, llvmorg-17.0.0-rc4, llvmorg-17.0.0-rc3, llvmorg-17.0.0-rc2, llvmorg-17.0.0-rc1, llvmorg-18-init, llvmorg-16.0.6, llvmorg-16.0.5, llvmorg-16.0.4, llvmorg-16.0.3, llvmorg-16.0.2, llvmorg-16.0.1, llvmorg-16.0.0, llvmorg-16.0.0-rc4, llvmorg-16.0.0-rc3, llvmorg-16.0.0-rc2, llvmorg-16.0.0-rc1, llvmorg-17-init, llvmorg-15.0.7, llvmorg-15.0.6, llvmorg-15.0.5, llvmorg-15.0.4, llvmorg-15.0.3, llvmorg-15.0.2
# 5c68a1cb 27-Sep-2022 Matt Arsenault <[email protected]>

AMDGPU: Make various vector undefs legal

Surprisingly these were getting legalized to something
zero initialized.

This fixes an infinite loop when combining some vector types.
Also fixes zero initi

AMDGPU: Make various vector undefs legal

Surprisingly these were getting legalized to something
zero initialized.

This fixes an infinite loop when combining some vector types.
Also fixes zero initializing some undef values.

SimplifyDemandedVectorElts / SimplifyDemandedBits are not checking
for the legality of the output undefs they are replacing unused
operations with. This resulted in turning vectors into undefs
that were later re-legalized back into zero vectors.

(cherry picked from commit 7a84624079a2656c684bed6100708544500c5a32)

show more ...


Revision tags: llvmorg-15.0.1, llvmorg-15.0.0, llvmorg-15.0.0-rc3, llvmorg-15.0.0-rc2, llvmorg-15.0.0-rc1, llvmorg-16-init
# b14d7bf7 12-Jul-2022 David Stuttard <[email protected]>

AMDGPU: Turn off force init 16 input SGPRS for pal

Pal uses a different mechanism for user sgprs.

Differential Revision: https://reviews.llvm.org/D129566


# 0387da6f 20-Jul-2022 Kazu Hirata <[email protected]>

Use value instead of getValue (NFC)


# 41ae78ea 20-Jul-2022 Kazu Hirata <[email protected]>

Use has_value instead of hasValue (NFC)


# 3a205977 19-Jul-2022 Jon Chesterfield <[email protected]>

[amdgpu] Implement lds kernel id intrinsic

Implement an intrinsic for use lowering LDS variables to different
addresses from different kernels. This will allow kernels that cannot
reach an LDS varia

[amdgpu] Implement lds kernel id intrinsic

Implement an intrinsic for use lowering LDS variables to different
addresses from different kernels. This will allow kernels that cannot
reach an LDS variable to avoid wasting space for it.

There are a number of implicit arguments accessed by intrinsic already
so this implementation closely follows the existing handling. It is slightly
novel in that this SGPR is written by the kernel prologue.

It is necessary in the general case to put variables at different addresses
such that they can be compactly allocated and thus necessary for an
indirect function call to have some means of determining where a
given variable was allocated. Claiming an arbitrary SGPR into which
an integer can be written by the kernel, in this implementation based
on metadata associated with that kernel, which is then passed on to
indirect call sites is sufficient to determine the variable address.

The intent is to emit a __const array of LDS addresses and index into it.

Reviewed By: arsenm

Differential Revision: https://reviews.llvm.org/D125060

show more ...


# 2bd8e74b 11-Jul-2022 Piotr Sobczak <[email protected]>

[AMDGPU] Fix bitcast v4i64/v16i16

Fix a regression introduced in D128865.

Reviewed By: arsenm

Differential Revision: https://reviews.llvm.org/D129375


# bd675af2 30-Jun-2022 Piotr Sobczak <[email protected]>

[AMDGPU] Make v16i16/v16f16 legal

There are upcoming intrinsics to use the new types.

Reviewed By: rampitec

Differential Revision: https://reviews.llvm.org/D128865


Revision tags: llvmorg-14.0.6, llvmorg-14.0.5, llvmorg-14.0.4, llvmorg-14.0.3, llvmorg-14.0.2, llvmorg-14.0.1, llvmorg-14.0.0, llvmorg-14.0.0-rc4, llvmorg-14.0.0-rc3, llvmorg-14.0.0-rc2, llvmorg-14.0.0-rc1, llvmorg-15-init
# 0bdaef38 24-Jan-2022 Matt Arsenault <[email protected]>

AMDGPU: Add gfx11 feature to force initializing 16 input SGPRs

The total user+system SGPR count needs to be padded out to 16 if fewer
inputs are enabled.


Revision tags: llvmorg-13.0.1, llvmorg-13.0.1-rc3, llvmorg-13.0.1-rc2, llvmorg-13.0.1-rc1, llvmorg-13.0.0, llvmorg-13.0.0-rc4, llvmorg-13.0.0-rc3, llvmorg-13.0.0-rc2, llvmorg-13.0.0-rc1, llvmorg-14-init, llvmorg-12.0.1, llvmorg-12.0.1-rc4, llvmorg-12.0.1-rc3, llvmorg-12.0.1-rc2, llvmorg-12.0.1-rc1, llvmorg-12.0.0, llvmorg-12.0.0-rc5, llvmorg-12.0.0-rc4, llvmorg-12.0.0-rc3, llvmorg-12.0.0-rc2, llvmorg-11.1.0, llvmorg-11.1.0-rc3, llvmorg-12.0.0-rc1, llvmorg-13-init, llvmorg-11.1.0-rc2, llvmorg-11.1.0-rc1, llvmorg-11.0.1, llvmorg-11.0.1-rc2, llvmorg-11.0.1-rc1
# 3fbc945c 06-Nov-2020 Jay Foad <[email protected]>

[AMDGPU] llvm.amdgcn.exp.compr is not supported on GFX11

Differential Revision: https://reviews.llvm.org/D128259


# ae72fee7 20-Jun-2022 Joe Nash <[email protected]>

[AMDGPU] gfx11 Select on Buffer Atomic FAdd Rtn type

Reviewed By: #amdgpu, foad, rampitec

Differential Revision: https://reviews.llvm.org/D128205


# 971fa4b1 30-Mar-2021 Rodrigo Dominguez <[email protected]>

[AMDGPU] GFX11: remove ShaderType from ds_ordered_count offset field

In GFX11 ShaderType is determined by the hardware and should no longer
be written into bits[3:2] of the ds_ordered_count offset f

[AMDGPU] GFX11: remove ShaderType from ds_ordered_count offset field

In GFX11 ShaderType is determined by the hardware and should no longer
be written into bits[3:2] of the ds_ordered_count offset field.

Differential Revision: https://reviews.llvm.org/D128196

show more ...


# c155a944 14-Jun-2022 Jay Foad <[email protected]>

[AMDGPU] GFX11 CodeGen support for MIMG instructions

This includes:
- New llvm.amdgcn.image.msaa.load.* intrinsics
- NSA changes, because MIMG-NSA is now limited to 3 dwords
- Split CD forms of IMAG

[AMDGPU] GFX11 CodeGen support for MIMG instructions

This includes:
- New llvm.amdgcn.image.msaa.load.* intrinsics
- NSA changes, because MIMG-NSA is now limited to 3 dwords
- Split CD forms of IMAGE_SAMPLE instructions out into separate
test files since they are no longer supported in GFX11

Differential Revision: https://reviews.llvm.org/D127837

show more ...


# 4b2d70fa 07-Jun-2022 Jay Foad <[email protected]>

[AMDGPU] Basic implementation of isExtractSubvectorCheap

Add a basic implementation of isExtractSubvectorCheap that only
considers extracts at offset 0.

Differential Revision: https://reviews.llvm.

[AMDGPU] Basic implementation of isExtractSubvectorCheap

Add a basic implementation of isExtractSubvectorCheap that only
considers extracts at offset 0.

Differential Revision: https://reviews.llvm.org/D127385

show more ...


# 07881861 03-Jun-2022 Guillaume Chatelet <[email protected]>

[Alignment][NFC] Remove usage of MemSDNode::getAlignment

I can't remove the function just yet as it is used in the generated .inc files.
I would also like to provide a way to compare alignment with

[Alignment][NFC] Remove usage of MemSDNode::getAlignment

I can't remove the function just yet as it is used in the generated .inc files.
I would also like to provide a way to compare alignment with TypeSize since it came up a few times.

Differential Revision: https://reviews.llvm.org/D126910

show more ...


# 2dfe4194 02-Jun-2022 Julien Pages <[email protected]>

[AMDGPU] Improve codegen of extractelement/insertelement in some cases

This patch improves the codegen of extractelement and insertelement for vector
containing 8 elements. Before, a dag combine tra

[AMDGPU] Improve codegen of extractelement/insertelement in some cases

This patch improves the codegen of extractelement and insertelement for vector
containing 8 elements. Before, a dag combine transformation was generating a
sequence of 8 select/cmp.
This patch changes the upper limit for this transformation and the movrel
instruction will eventually be used instead. Extractlement/insertelement for
vectors containing less than 8 elements are unchanged.

Differential Revision: https://reviews.llvm.org/D126389

show more ...


# 0e1c71e4 27-Apr-2022 Matt Arsenault <[email protected]>

CodeGen: Move getAddressSpaceForPseudoSourceKind into TargetMachine

Avoid the dependency on TargetInstrInfo, which depends on the subtarget
and therefore the individual function.

Currently AMDGPU i

CodeGen: Move getAddressSpaceForPseudoSourceKind into TargetMachine

Avoid the dependency on TargetInstrInfo, which depends on the subtarget
and therefore the individual function.

Currently AMDGPU is constructing PseudoSourceValue instances in MachineFunctionInfo.
In order to facilitate copying MachineFunctionInfo, we need to stop allocating these
there. Alternatively we could allow targets to subclass PseudoSourceValueManager,
and allocate them similarly to MachineFunctionInfo.

show more ...


# 5df6669d 18-May-2022 Stanislav Mekhanoshin <[email protected]>

[AMDGPU] Enforce alignment of image vaddr on gfx90a

Even though single address image instructions only use a single VGPR
HW accesses 4 or 5 which creates alignment requirement.

Fixes: SWDEV-316648

[AMDGPU] Enforce alignment of image vaddr on gfx90a

Even though single address image instructions only use a single VGPR
HW accesses 4 or 5 which creates alignment requirement.

Fixes: SWDEV-316648

Differential Revision: https://reviews.llvm.org/D126009

show more ...


# 25af3afa 18-May-2022 Shao-Ce SUN <[email protected]>

[NFC][AMDGPU][CodeGen] Use ArrayRef in TargetLowering functions

Based on D123467.

Reviewed By: rampitec

Differential Revision: https://reviews.llvm.org/D124508


# dee31902 17-May-2022 Stanislav Mekhanoshin <[email protected]>

[AMDGPU] Add llvm.amdgcn.global.load.lds intrinsic

Differential Revision: https://reviews.llvm.org/D125279


# 791ec1c6 13-May-2022 Stanislav Mekhanoshin <[email protected]>

[AMDGPU] Add intrinsics llvm.amdgcn.{raw|struct}.buffer.load.lds

Differential Revision: https://reviews.llvm.org/D124884


# 6c2a01ce 13-Apr-2022 Nicolai Hähnle <[email protected]>

AMDGPU/SDAG: Refine the fold to v_mad_[iu]64_[iu]32

Only fold for uniform values on pre-GFX9 chips. GFX9+ allow us
to keep the calculation entirely on the SALU.

For subtargets where integer multipl

AMDGPU/SDAG: Refine the fold to v_mad_[iu]64_[iu]32

Only fold for uniform values on pre-GFX9 chips. GFX9+ allow us
to keep the calculation entirely on the SALU.

For subtargets where integer multiplication isn't full-rate, avoid
folding if the multiply has too many uses.

Finally, we expand 64x32 and 64x64 multiplies here as well, if they
feed into an addition. This results in better code generation than
the generic expansion for such multiplies because we end up using
the accumulator of the MAD instructions.

Differential Revision: https://reviews.llvm.org/D123835

show more ...


# 7e3ef7dc 07-May-2022 Simon Pilgrim <[email protected]>

[AMDGPU] lowerEXTRACT_VECTOR_ELT - fold from a SCALAR_TO_VECTOR source

As suggested by @foad on D124839

If we're extracting a vector element that originally came from a scalar_to_vector, then avoid

[AMDGPU] lowerEXTRACT_VECTOR_ELT - fold from a SCALAR_TO_VECTOR source

As suggested by @foad on D124839

If we're extracting a vector element that originally came from a scalar_to_vector, then avoid the bitcasting of a vector type and perform the shift masking on the (any-extended) scalar source directly, making use of the fact that the upper elements of a scalar_to_vector are all undef.

Differential Revision: https://reviews.llvm.org/D125173

show more ...


# bc78c099 04-May-2022 Jon Chesterfield <[email protected]>

[amdgpu] Elide module lds allocation in kernels with no callees

Introduces a string attribute, amdgpu-requires-module-lds, to allow
eliding the module.lds block from kernels. Will allocate the block

[amdgpu] Elide module lds allocation in kernels with no callees

Introduces a string attribute, amdgpu-requires-module-lds, to allow
eliding the module.lds block from kernels. Will allocate the block as before
if the attribute is missing or has its default value of true.

Patch uses the new attribute to detect the simplest possible instance of this,
where a kernel makes no calls and thus cannot call any functions that use LDS.

Tests updated to match, coverage was already good. Interesting cases is in
lower-module-lds-offsets where annotating the kernel allows the backend to pick
a different (in this case better) variable ordering than previously. A later
patch will avoid moving kernel variables into module.lds when the kernel can
have this attribute, allowing optimal ordering and locally unused variable
elimination.

Reviewed By: arsenm

Differential Revision: https://reviews.llvm.org/D122091

show more ...


# 589b9df4 02-May-2022 hsmahesha <[email protected]>

[AMDGPU] Fix scalar_to_vector for v8i16/v8f16

so that the stack access is avoided.

Reviewed By: rampitec

Differential Revision: https://reviews.llvm.org/D124734


# 3175323c 01-May-2022 hsmahesha <[email protected]>

[AMDGPU][NFC] Make lowerINSERT_VECTOR_ELT() more readable

by moving around the code and by adding more comments, which would
later help during any required clean-up.

Differential Revision: https://

[AMDGPU][NFC] Make lowerINSERT_VECTOR_ELT() more readable

by moving around the code and by adding more comments, which would
later help during any required clean-up.

Differential Revision: https://reviews.llvm.org/D124733

show more ...


12345678910>>...43