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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, 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, 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, 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, llvmorg-11.0.0, llvmorg-11.0.0-rc6, llvmorg-11.0.0-rc5, llvmorg-11.0.0-rc4, llvmorg-11.0.0-rc3, llvmorg-11.0.0-rc2 |
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52bc2e75 |
| 03-Aug-2020 |
Nicolai Hähnle <[email protected]> |
[AMDGPU][SelectionDAG] Don't combine uniform multiplies to MUL_[UI]24
Prefer to keep uniform (non-divergent) multiplies on the scalar ALU when possible. This significantly improves some game cases b
[AMDGPU][SelectionDAG] Don't combine uniform multiplies to MUL_[UI]24
Prefer to keep uniform (non-divergent) multiplies on the scalar ALU when possible. This significantly improves some game cases by eliminating v_readfirstlane instructions when the result feeds into a scalar operation, like the address calculation for a scalar load or store.
Since isDivergent is only an approximation of whether a value is in SGPRs, it can potentially regress some situations where a uniform value ends up in a VGPR. These should be rare in real code, although the test changes do contain a number of examples.
Most of the test changes are just using s_mul instead of v_mul/mad which is generally better for both register pressure and latency (at least on GFX10 where sgpr pressure doesn't affect occupancy and vector ALU instructions have significantly longer latency than scalar ALU). Some R600 tests now use MULLO_INT instead of MUL_UINT24.
GlobalISel appears to handle more scenarios in the desirable way, although it can also be thrown off and fails to select the 24-bit multiplies in some cases.
Alternative solution considered and rejected was to allow selecting MUL_[UI]24 to S_MUL_I32. I've rejected this because the definition of those SD operations works is don't-care on the most significant 8 bits, and this fact is used in some combines via SimplifyDemandedBits.
Based on a patch by Nicolai Hähnle.
Differential Revision: https://reviews.llvm.org/D97063
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b4706309 |
| 06-Jan-2021 |
Mircea Trofin <[email protected]> |
[NFC] Removed unused prefixes from CodeGen/AMDGPU
All the 'l'-starting tests.
Differential Revision: https://reviews.llvm.org/D94151
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Revision tags: llvmorg-11.0.0-rc1, llvmorg-12-init, llvmorg-10.0.1, llvmorg-10.0.1-rc4, llvmorg-10.0.1-rc3, llvmorg-10.0.1-rc2, llvmorg-10.0.1-rc1, llvmorg-10.0.0, llvmorg-10.0.0-rc6, llvmorg-10.0.0-rc5, llvmorg-10.0.0-rc4, llvmorg-10.0.0-rc3, llvmorg-10.0.0-rc2, llvmorg-10.0.0-rc1, llvmorg-11-init, llvmorg-9.0.1, llvmorg-9.0.1-rc3, llvmorg-9.0.1-rc2, llvmorg-9.0.1-rc1, llvmorg-9.0.0, llvmorg-9.0.0-rc6, llvmorg-9.0.0-rc5, llvmorg-9.0.0-rc4, llvmorg-9.0.0-rc3, llvmorg-9.0.0-rc2, llvmorg-9.0.0-rc1, llvmorg-10-init, llvmorg-8.0.1, llvmorg-8.0.1-rc4 |
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1d572ce3 |
| 28-Jun-2019 |
Dmitry Preobrazhensky <[email protected]> |
[AMDGPU][MC] Enabled constant expressions as operands of sendmsg
See bug 40820: https://bugs.llvm.org/show_bug.cgi?id=40820
Reviewers: artem.tamazov, arsenm
Differential Revision: https://reviews.
[AMDGPU][MC] Enabled constant expressions as operands of sendmsg
See bug 40820: https://bugs.llvm.org/show_bug.cgi?id=40820
Reviewers: artem.tamazov, arsenm
Differential Revision: https://reviews.llvm.org/D62735
llvm-svn: 364645
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Revision tags: llvmorg-8.0.1-rc3, llvmorg-8.0.1-rc2, llvmorg-8.0.1-rc1 |
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d9930d49 |
| 13-May-2019 |
Stanislav Mekhanoshin <[email protected]> |
[AMDGPU] gfx1010 tests. NFC.
llvm-svn: 360615
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Revision tags: llvmorg-8.0.0, llvmorg-8.0.0-rc5, llvmorg-8.0.0-rc4, llvmorg-8.0.0-rc3, llvmorg-7.1.0, llvmorg-7.1.0-rc1, llvmorg-8.0.0-rc2, llvmorg-8.0.0-rc1, llvmorg-7.0.1, llvmorg-7.0.1-rc3, llvmorg-7.0.1-rc2, llvmorg-7.0.1-rc1, llvmorg-7.0.0, llvmorg-7.0.0-rc3, llvmorg-7.0.0-rc2, llvmorg-7.0.0-rc1 |
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7f0d05d5 |
| 30-Jul-2018 |
Nicolai Haehnle <[email protected]> |
AMDGPU: Force skip over s_sendmsg and exp instructions
Summary: These instructions interact with hardware blocks outside the shader core, and they can have "scalar" side effects even when EXEC = 0.
AMDGPU: Force skip over s_sendmsg and exp instructions
Summary: These instructions interact with hardware blocks outside the shader core, and they can have "scalar" side effects even when EXEC = 0. We don't want these scalar side effects to occur when all lanes want to skip these instructions, so always add the execz skip branch instruction for basic blocks that contain them.
Also ensure that we skip scalar stores / atomics, though we don't code-gen those yet.
Reviewers: arsenm, rampitec
Subscribers: kzhuravl, wdng, yaxunl, dstuttard, tpr, t-tye, llvm-commits
Differential Revision: https://reviews.llvm.org/D48431
Change-Id: Ieaeb58352e2789ffd64745603c14970c60819d44 llvm-svn: 338235
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Revision tags: llvmorg-6.0.1, llvmorg-6.0.1-rc3, llvmorg-6.0.1-rc2 |
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7a87977f |
| 20-Apr-2018 |
Nicolai Haehnle <[email protected]> |
AMDGPU: Legalize the operand of SI_INIT_M0
Summary: This fixes a case where the argument to a sendmsg intrinsic ends up in a VGPR, for whatever reason.
The underlying performance issue is that a mu
AMDGPU: Legalize the operand of SI_INIT_M0
Summary: This fixes a case where the argument to a sendmsg intrinsic ends up in a VGPR, for whatever reason.
The underlying performance issue is that a multiplication that can be an s_mul_i32 is instead needlessly generated as v_mul_u32_u24, but this is not addressed by this patch.
Change-Id: I61fd4034314d5acdf6074632c30b65364dfa7328
Reviewers: arsenm, rampitec
Subscribers: kzhuravl, wdng, yaxunl, dstuttard, tpr, t-tye, llvm-commits
Differential Revision: https://reviews.llvm.org/D45826
llvm-svn: 330393
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Revision tags: llvmorg-6.0.1-rc1, llvmorg-5.0.2, llvmorg-5.0.2-rc2, llvmorg-5.0.2-rc1, llvmorg-6.0.0, llvmorg-6.0.0-rc3, llvmorg-6.0.0-rc2, llvmorg-6.0.0-rc1, llvmorg-5.0.1, llvmorg-5.0.1-rc3, llvmorg-5.0.1-rc2, llvmorg-5.0.1-rc1, llvmorg-5.0.0, llvmorg-5.0.0-rc5, llvmorg-5.0.0-rc4, llvmorg-5.0.0-rc3, llvmorg-5.0.0-rc2, llvmorg-5.0.0-rc1, llvmorg-4.0.1, llvmorg-4.0.1-rc3, llvmorg-4.0.1-rc2, llvmorg-4.0.1-rc1 |
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3dbeefa9 |
| 21-Mar-2017 |
Matt Arsenault <[email protected]> |
AMDGPU: Mark all unspecified CC functions in tests as amdgpu_kernel
Currently the default C calling convention functions are treated the same as compute kernels. Make this explicit so the default ca
AMDGPU: Mark all unspecified CC functions in tests as amdgpu_kernel
Currently the default C calling convention functions are treated the same as compute kernels. Make this explicit so the default calling convention can be changed to a non-kernel.
Converted with perl -pi -e 's/define void/define amdgpu_kernel void/' on the relevant test directories (and undoing in one place that actually wanted a non-kernel).
llvm-svn: 298444
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Revision tags: llvmorg-4.0.0, llvmorg-4.0.0-rc4, llvmorg-4.0.0-rc3 |
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d3e5cb77 |
| 16-Feb-2017 |
Matt Arsenault <[email protected]> |
AMDGPU: Remove llvm.SI.sendmsg
llvm-svn: 295270
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a78ca62c |
| 15-Feb-2017 |
Matt Arsenault <[email protected]> |
AMDGPU: Consolidate sendmsg/sendmsghalt handling and tests
llvm-svn: 295244
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