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[RISCV] tt-ascalon-d8 vector scheduling #167066

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162020b
[WIP][RISCV] tt-ascalon-d8 vector scheduling
ppenzin Nov 8, 2025
fce1328
Simplify release/acquire
ppenzin Nov 10, 2025
7ef8e98
Add vector mask and permute operations
ppenzin Nov 12, 2025
4c9407e
Add read advances and a few more instructions
ppenzin Nov 12, 2025
2f570d6
Vector memory ops
ppenzin Nov 12, 2025
da7d9bb
Update llvm/lib/Target/RISCV/RISCVSchedTTAscalonD8.td
ppenzin Nov 13, 2025
2179e4c
Clean up copied latencies, remove TODOs
ppenzin Nov 13, 2025
88279d3
Clear instances of cycles-1=0, add tests
ppenzin Nov 13, 2025
863b8e1
Review feedback
ppenzin Nov 18, 2025
c2622c1
Move tune settings out
ppenzin Nov 20, 2025
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720 changes: 714 additions & 6 deletions llvm/lib/Target/RISCV/RISCVSchedTTAscalonD8.td
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54 changes: 28 additions & 26 deletions llvm/test/tools/llvm-mca/RISCV/tt-ascalon-d8/fp.s
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Original file line number Diff line number Diff line change
Expand Up @@ -47,33 +47,35 @@ fsqrt.d ft2, fa3
# CHECK-NEXT: 1 12 6.00 fsqrt.d ft2, fa3

# CHECK: Resources:
# CHECK-NEXT: [0.0] - AscalonFP
# CHECK-NEXT: [0.1] - AscalonFP
# CHECK-NEXT: [1] - AscalonFXA
# CHECK-NEXT: [2] - AscalonFXB
# CHECK-NEXT: [3.0] - AscalonFXC
# CHECK-NEXT: [3.1] - AscalonFXC
# CHECK-NEXT: [4.0] - AscalonFXD
# CHECK-NEXT: [4.1] - AscalonFXD
# CHECK-NEXT: [5.0] - AscalonLS
# CHECK-NEXT: [5.1] - AscalonLS
# CHECK-NEXT: [5.2] - AscalonLS
# CHECK-NEXT: [0] - AscalonFPA
# CHECK-NEXT: [1] - AscalonFPB
# CHECK-NEXT: [2] - AscalonFXA
# CHECK-NEXT: [3] - AscalonFXB
# CHECK-NEXT: [4.0] - AscalonFXC
# CHECK-NEXT: [4.1] - AscalonFXC
# CHECK-NEXT: [5.0] - AscalonFXD
# CHECK-NEXT: [5.1] - AscalonFXD
# CHECK-NEXT: [6.0] - AscalonLS
# CHECK-NEXT: [6.1] - AscalonLS
# CHECK-NEXT: [6.2] - AscalonLS
# CHECK-NEXT: [7] - AscalonVA
# CHECK-NEXT: [8] - AscalonVB

# CHECK: Resource pressure per iteration:
# CHECK-NEXT: [0.0] [0.1] [1] [2] [3.0] [3.1] [4.0] [4.1] [5.0] [5.1] [5.2]
# CHECK-NEXT: 18.00 28.00 - - - - - - - - -
# CHECK-NEXT: [0] [1] [2] [3] [4.0] [4.1] [5.0] [5.1] [6.0] [6.1] [6.2] [7] [8]
# CHECK-NEXT: 18.00 28.00 - - - - - - - - - - -

# CHECK: Resource pressure by instruction:
# CHECK-NEXT: [0.0] [0.1] [1] [2] [3.0] [3.1] [4.0] [4.1] [5.0] [5.1] [5.2] Instructions:
# CHECK-NEXT: - 1.00 - - - - - - - - - fmin.s ft0, fa0, fa1
# CHECK-NEXT: 1.00 - - - - - - - - - - fmax.s ft1, fa0, fa1
# CHECK-NEXT: - 1.00 - - - - - - - - - fmin.d ft2, ft4, ft5
# CHECK-NEXT: 1.00 - - - - - - - - - - fmax.d ft3, ft4, ft5
# CHECK-NEXT: - 1.00 - - - - - - - - - fmadd.s fs0, fs0, fs8, fs9
# CHECK-NEXT: 1.00 - - - - - - - - - - fmsub.s fs1, fs1, fs8, fs9
# CHECK-NEXT: - 1.00 - - - - - - - - - fmul.s fs3, fs3, fs4
# CHECK-NEXT: 7.00 - - - - - - - - - - fdiv.s fs2, fs3, fs4
# CHECK-NEXT: 1.00 - - - - - - - - - - fmul.d ft4, ft4, ft5
# CHECK-NEXT: - 12.00 - - - - - - - - - fdiv.d fs4, fa3, ft5
# CHECK-NEXT: 7.00 - - - - - - - - - - fsqrt.s ft1, fa2
# CHECK-NEXT: - 12.00 - - - - - - - - - fsqrt.d ft2, fa3
# CHECK-NEXT: [0] [1] [2] [3] [4.0] [4.1] [5.0] [5.1] [6.0] [6.1] [6.2] [7] [8] Instructions:
# CHECK-NEXT: - 1.00 - - - - - - - - - - - fmin.s ft0, fa0, fa1
# CHECK-NEXT: 1.00 - - - - - - - - - - - - fmax.s ft1, fa0, fa1
# CHECK-NEXT: - 1.00 - - - - - - - - - - - fmin.d ft2, ft4, ft5
# CHECK-NEXT: 1.00 - - - - - - - - - - - - fmax.d ft3, ft4, ft5
# CHECK-NEXT: - 1.00 - - - - - - - - - - - fmadd.s fs0, fs0, fs8, fs9
# CHECK-NEXT: 1.00 - - - - - - - - - - - - fmsub.s fs1, fs1, fs8, fs9
# CHECK-NEXT: - 1.00 - - - - - - - - - - - fmul.s fs3, fs3, fs4
# CHECK-NEXT: 7.00 - - - - - - - - - - - - fdiv.s fs2, fs3, fs4
# CHECK-NEXT: 1.00 - - - - - - - - - - - - fmul.d ft4, ft4, ft5
# CHECK-NEXT: - 12.00 - - - - - - - - - - - fdiv.d fs4, fa3, ft5
# CHECK-NEXT: 7.00 - - - - - - - - - - - - fsqrt.s ft1, fa2
# CHECK-NEXT: - 12.00 - - - - - - - - - - - fsqrt.d ft2, fa3
54 changes: 28 additions & 26 deletions llvm/test/tools/llvm-mca/RISCV/tt-ascalon-d8/fx.s
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Original file line number Diff line number Diff line change
Expand Up @@ -47,33 +47,35 @@ fcvt.w.s t5, f3
# CHECK-NEXT: 1 1 1.00 fcvt.w.s t5, ft3

# CHECK: Resources:
# CHECK-NEXT: [0.0] - AscalonFP
# CHECK-NEXT: [0.1] - AscalonFP
# CHECK-NEXT: [1] - AscalonFXA
# CHECK-NEXT: [2] - AscalonFXB
# CHECK-NEXT: [3.0] - AscalonFXC
# CHECK-NEXT: [3.1] - AscalonFXC
# CHECK-NEXT: [4.0] - AscalonFXD
# CHECK-NEXT: [4.1] - AscalonFXD
# CHECK-NEXT: [5.0] - AscalonLS
# CHECK-NEXT: [5.1] - AscalonLS
# CHECK-NEXT: [5.2] - AscalonLS
# CHECK-NEXT: [0] - AscalonFPA
# CHECK-NEXT: [1] - AscalonFPB
# CHECK-NEXT: [2] - AscalonFXA
# CHECK-NEXT: [3] - AscalonFXB
# CHECK-NEXT: [4.0] - AscalonFXC
# CHECK-NEXT: [4.1] - AscalonFXC
# CHECK-NEXT: [5.0] - AscalonFXD
# CHECK-NEXT: [5.1] - AscalonFXD
# CHECK-NEXT: [6.0] - AscalonLS
# CHECK-NEXT: [6.1] - AscalonLS
# CHECK-NEXT: [6.2] - AscalonLS
# CHECK-NEXT: [7] - AscalonVA
# CHECK-NEXT: [8] - AscalonVB

# CHECK: Resource pressure per iteration:
# CHECK-NEXT: [0.0] [0.1] [1] [2] [3.0] [3.1] [4.0] [4.1] [5.0] [5.1] [5.2]
# CHECK-NEXT: - - 17.00 1.00 2.00 2.00 1.00 1.00 - - -
# CHECK-NEXT: [0] [1] [2] [3] [4.0] [4.1] [5.0] [5.1] [6.0] [6.1] [6.2] [7] [8]
# CHECK-NEXT: - - 17.00 1.00 2.00 2.00 1.00 1.00 - - - - -

# CHECK: Resource pressure by instruction:
# CHECK-NEXT: [0.0] [0.1] [1] [2] [3.0] [3.1] [4.0] [4.1] [5.0] [5.1] [5.2] Instructions:
# CHECK-NEXT: - - 1.00 - - - - - - - - mul t0, a0, t0
# CHECK-NEXT: - - - - - - - 1.00 - - - sub s2, a2, a3
# CHECK-NEXT: - - 7.00 - - - - - - - - div t1, t2, t3
# CHECK-NEXT: - - - - - - 1.00 - - - - add t1, a4, gp
# CHECK-NEXT: - - 7.00 - - - - - - - - div a1, a2, a3
# CHECK-NEXT: - - - - - 1.00 - - - - - add t1, a0, t0
# CHECK-NEXT: - - 1.00 - - - - - - - - mul s0, s0, a5
# CHECK-NEXT: - - - - - 1.00 - - - - - add t2, t2, t2
# CHECK-NEXT: - - - - 1.00 - - - - - - sub s1, s0, s1
# CHECK-NEXT: - - - 1.00 - - - - - - - fcvt.s.w ft1, t3
# CHECK-NEXT: - - - - 1.00 - - - - - - add s2, s2, s2
# CHECK-NEXT: - - 1.00 - - - - - - - - fcvt.w.s t5, ft3
# CHECK-NEXT: [0] [1] [2] [3] [4.0] [4.1] [5.0] [5.1] [6.0] [6.1] [6.2] [7] [8] Instructions:
# CHECK-NEXT: - - 1.00 - - - - - - - - - - mul t0, a0, t0
# CHECK-NEXT: - - - - - - - 1.00 - - - - - sub s2, a2, a3
# CHECK-NEXT: - - 7.00 - - - - - - - - - - div t1, t2, t3
# CHECK-NEXT: - - - - - - 1.00 - - - - - - add t1, a4, gp
# CHECK-NEXT: - - 7.00 - - - - - - - - - - div a1, a2, a3
# CHECK-NEXT: - - - - - 1.00 - - - - - - - add t1, a0, t0
# CHECK-NEXT: - - 1.00 - - - - - - - - - - mul s0, s0, a5
# CHECK-NEXT: - - - - - 1.00 - - - - - - - add t2, t2, t2
# CHECK-NEXT: - - - - 1.00 - - - - - - - - sub s1, s0, s1
# CHECK-NEXT: - - - 1.00 - - - - - - - - - fcvt.s.w ft1, t3
# CHECK-NEXT: - - - - 1.00 - - - - - - - - add s2, s2, s2
# CHECK-NEXT: - - 1.00 - - - - - - - - - - fcvt.w.s t5, ft3
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