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[NFC][X86][MCA] AMD Zen 3: add tests for CMP dependency breaking

This commit is contained in:
Roman Lebedev 2021-05-09 23:28:08 +03:00
parent 11b0568dce
commit 9a31efa2f5
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1 changed files with 178 additions and 0 deletions
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178
llvm/test/tools/llvm-mca/X86/Znver3/dependency-breaking-gpr.s
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@ -11,6 +11,18 @@ sbbq %rax, %rax
mulxq %rax, %rax, %rax
# LLVM-MCA-END
# LLVM-MCA-BEGIN
mulxl %eax, %eax, %eax
cmpl %eax, %eax
cmovael %eax, %ecx
# LLVM-MCA-END
# LLVM-MCA-BEGIN
mulxq %rax, %rax, %rax
cmpq %rax, %rax
cmovaeq %rax, %rcx
# LLVM-MCA-END
# CHECK: [0] Code Region
# CHECK: Iterations: 1000
@ -164,3 +176,169 @@ mulxq %rax, %rax, %rax
# CHECK-NEXT: 0. 2 1.5 0.5 1.5 sbbq %rax, %rax
# CHECK-NEXT: 1. 2 2.5 0.0 0.0 mulxq %rax, %rax, %rax
# CHECK-NEXT: 2 2.0 0.3 0.8 <total>
# CHECK: [2] Code Region
# CHECK: Iterations: 1000
# CHECK-NEXT: Instructions: 3000
# CHECK-NEXT: Total Cycles: 4005
# CHECK-NEXT: Total uOps: 4000
# CHECK: Dispatch Width: 6
# CHECK-NEXT: uOps Per Cycle: 1.00
# CHECK-NEXT: IPC: 0.75
# CHECK-NEXT: Block RThroughput: 1.0
# CHECK: Instruction Info:
# CHECK-NEXT: [1]: #uOps
# CHECK-NEXT: [2]: Latency
# CHECK-NEXT: [3]: RThroughput
# CHECK-NEXT: [4]: MayLoad
# CHECK-NEXT: [5]: MayStore
# CHECK-NEXT: [6]: HasSideEffects (U)
# CHECK: [1] [2] [3] [4] [5] [6] Instructions:
# CHECK-NEXT: 2 4 1.00 mulxl %eax, %eax, %eax
# CHECK-NEXT: 1 1 0.25 cmpl %eax, %eax
# CHECK-NEXT: 1 1 0.50 cmovael %eax, %ecx
# CHECK: Resources:
# CHECK-NEXT: [0] - Zn3AGU0
# CHECK-NEXT: [1] - Zn3AGU1
# CHECK-NEXT: [2] - Zn3AGU2
# CHECK-NEXT: [3] - Zn3ALU0
# CHECK-NEXT: [4] - Zn3ALU1
# CHECK-NEXT: [5] - Zn3ALU2
# CHECK-NEXT: [6] - Zn3ALU3
# CHECK-NEXT: [7] - Zn3BRU1
# CHECK-NEXT: [8] - Zn3FPP0
# CHECK-NEXT: [9] - Zn3FPP1
# CHECK-NEXT: [10] - Zn3FPP2
# CHECK-NEXT: [11] - Zn3FPP3
# CHECK-NEXT: [12.0] - Zn3FPP45
# CHECK-NEXT: [12.1] - Zn3FPP45
# CHECK-NEXT: [13] - Zn3FPSt
# CHECK-NEXT: [14.0] - Zn3LSU
# CHECK-NEXT: [14.1] - Zn3LSU
# CHECK-NEXT: [14.2] - Zn3LSU
# CHECK-NEXT: [15.0] - Zn3Load
# CHECK-NEXT: [15.1] - Zn3Load
# CHECK-NEXT: [15.2] - Zn3Load
# CHECK-NEXT: [16.0] - Zn3Store
# CHECK-NEXT: [16.1] - Zn3Store
# CHECK: Resource pressure per iteration:
# CHECK-NEXT: [0] [1] [2] [3] [4] [5] [6] [7] [8] [9] [10] [11] [12.0] [12.1] [13] [14.0] [14.1] [14.2] [15.0] [15.1] [15.2] [16.0] [16.1]
# CHECK-NEXT: - - - 0.67 1.00 0.67 0.67 - - - - - - - - - - - - - - - -
# CHECK: Resource pressure by instruction:
# CHECK-NEXT: [0] [1] [2] [3] [4] [5] [6] [7] [8] [9] [10] [11] [12.0] [12.1] [13] [14.0] [14.1] [14.2] [15.0] [15.1] [15.2] [16.0] [16.1] Instructions:
# CHECK-NEXT: - - - - 1.00 - - - - - - - - - - - - - - - - - - mulxl %eax, %eax, %eax
# CHECK-NEXT: - - - - - 0.67 0.33 - - - - - - - - - - - - - - - - cmpl %eax, %eax
# CHECK-NEXT: - - - 0.67 - - 0.33 - - - - - - - - - - - - - - - - cmovael %eax, %ecx
# CHECK: Timeline view:
# CHECK-NEXT: 012
# CHECK-NEXT: Index 0123456789
# CHECK: [0,0] DeeeeER . . mulxl %eax, %eax, %eax
# CHECK-NEXT: [0,1] D====eER . . cmpl %eax, %eax
# CHECK-NEXT: [0,2] D=====eER . . cmovael %eax, %ecx
# CHECK-NEXT: [1,0] D====eeeeER . mulxl %eax, %eax, %eax
# CHECK-NEXT: [1,1] .D=======eER. cmpl %eax, %eax
# CHECK-NEXT: [1,2] .D========eER cmovael %eax, %ecx
# CHECK: Average Wait times (based on the timeline view):
# CHECK-NEXT: [0]: Executions
# CHECK-NEXT: [1]: Average time spent waiting in a scheduler's queue
# CHECK-NEXT: [2]: Average time spent waiting in a scheduler's queue while ready
# CHECK-NEXT: [3]: Average time elapsed from WB until retire stage
# CHECK: [0] [1] [2] [3]
# CHECK-NEXT: 0. 2 3.0 0.5 0.0 mulxl %eax, %eax, %eax
# CHECK-NEXT: 1. 2 6.5 0.0 0.0 cmpl %eax, %eax
# CHECK-NEXT: 2. 2 7.5 0.0 0.0 cmovael %eax, %ecx
# CHECK-NEXT: 2 5.7 0.2 0.0 <total>
# CHECK: [3] Code Region
# CHECK: Iterations: 1000
# CHECK-NEXT: Instructions: 3000
# CHECK-NEXT: Total Cycles: 4005
# CHECK-NEXT: Total uOps: 4000
# CHECK: Dispatch Width: 6
# CHECK-NEXT: uOps Per Cycle: 1.00
# CHECK-NEXT: IPC: 0.75
# CHECK-NEXT: Block RThroughput: 1.0
# CHECK: Instruction Info:
# CHECK-NEXT: [1]: #uOps
# CHECK-NEXT: [2]: Latency
# CHECK-NEXT: [3]: RThroughput
# CHECK-NEXT: [4]: MayLoad
# CHECK-NEXT: [5]: MayStore
# CHECK-NEXT: [6]: HasSideEffects (U)
# CHECK: [1] [2] [3] [4] [5] [6] Instructions:
# CHECK-NEXT: 2 4 1.00 mulxq %rax, %rax, %rax
# CHECK-NEXT: 1 1 0.25 cmpq %rax, %rax
# CHECK-NEXT: 1 1 0.50 cmovaeq %rax, %rcx
# CHECK: Resources:
# CHECK-NEXT: [0] - Zn3AGU0
# CHECK-NEXT: [1] - Zn3AGU1
# CHECK-NEXT: [2] - Zn3AGU2
# CHECK-NEXT: [3] - Zn3ALU0
# CHECK-NEXT: [4] - Zn3ALU1
# CHECK-NEXT: [5] - Zn3ALU2
# CHECK-NEXT: [6] - Zn3ALU3
# CHECK-NEXT: [7] - Zn3BRU1
# CHECK-NEXT: [8] - Zn3FPP0
# CHECK-NEXT: [9] - Zn3FPP1
# CHECK-NEXT: [10] - Zn3FPP2
# CHECK-NEXT: [11] - Zn3FPP3
# CHECK-NEXT: [12.0] - Zn3FPP45
# CHECK-NEXT: [12.1] - Zn3FPP45
# CHECK-NEXT: [13] - Zn3FPSt
# CHECK-NEXT: [14.0] - Zn3LSU
# CHECK-NEXT: [14.1] - Zn3LSU
# CHECK-NEXT: [14.2] - Zn3LSU
# CHECK-NEXT: [15.0] - Zn3Load
# CHECK-NEXT: [15.1] - Zn3Load
# CHECK-NEXT: [15.2] - Zn3Load
# CHECK-NEXT: [16.0] - Zn3Store
# CHECK-NEXT: [16.1] - Zn3Store
# CHECK: Resource pressure per iteration:
# CHECK-NEXT: [0] [1] [2] [3] [4] [5] [6] [7] [8] [9] [10] [11] [12.0] [12.1] [13] [14.0] [14.1] [14.2] [15.0] [15.1] [15.2] [16.0] [16.1]
# CHECK-NEXT: - - - 0.67 1.00 0.67 0.67 - - - - - - - - - - - - - - - -
# CHECK: Resource pressure by instruction:
# CHECK-NEXT: [0] [1] [2] [3] [4] [5] [6] [7] [8] [9] [10] [11] [12.0] [12.1] [13] [14.0] [14.1] [14.2] [15.0] [15.1] [15.2] [16.0] [16.1] Instructions:
# CHECK-NEXT: - - - - 1.00 - - - - - - - - - - - - - - - - - - mulxq %rax, %rax, %rax
# CHECK-NEXT: - - - - - 0.67 0.33 - - - - - - - - - - - - - - - - cmpq %rax, %rax
# CHECK-NEXT: - - - 0.67 - - 0.33 - - - - - - - - - - - - - - - - cmovaeq %rax, %rcx
# CHECK: Timeline view:
# CHECK-NEXT: 012
# CHECK-NEXT: Index 0123456789
# CHECK: [0,0] DeeeeER . . mulxq %rax, %rax, %rax
# CHECK-NEXT: [0,1] D====eER . . cmpq %rax, %rax
# CHECK-NEXT: [0,2] D=====eER . . cmovaeq %rax, %rcx
# CHECK-NEXT: [1,0] D====eeeeER . mulxq %rax, %rax, %rax
# CHECK-NEXT: [1,1] .D=======eER. cmpq %rax, %rax
# CHECK-NEXT: [1,2] .D========eER cmovaeq %rax, %rcx
# CHECK: Average Wait times (based on the timeline view):
# CHECK-NEXT: [0]: Executions
# CHECK-NEXT: [1]: Average time spent waiting in a scheduler's queue
# CHECK-NEXT: [2]: Average time spent waiting in a scheduler's queue while ready
# CHECK-NEXT: [3]: Average time elapsed from WB until retire stage
# CHECK: [0] [1] [2] [3]
# CHECK-NEXT: 0. 2 3.0 0.5 0.0 mulxq %rax, %rax, %rax
# CHECK-NEXT: 1. 2 6.5 0.0 0.0 cmpq %rax, %rax
# CHECK-NEXT: 2. 2 7.5 0.0 0.0 cmovaeq %rax, %rcx
# CHECK-NEXT: 2 5.7 0.2 0.0 <total>