reg-move-elimination-4.s
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# NOTE: Assertions have been autogenerated by utils/update_mca_test_checks.py
# RUN: llvm-mca -mtriple=x86_64-unknown-unknown -mcpu=btver2 -iterations=3 -timeline -register-file-stats < %s | FileCheck %s
xor %eax, %eax
mov %eax, %ebx
mov %ebx, %ecx
mov %ecx, %edx
mov %edx, %eax
# CHECK: Iterations: 3
# CHECK-NEXT: Instructions: 15
# CHECK-NEXT: Total Cycles: 9
# CHECK-NEXT: Total uOps: 15
# CHECK: Dispatch Width: 2
# CHECK-NEXT: uOps Per Cycle: 1.67
# CHECK-NEXT: IPC: 1.67
# CHECK-NEXT: Block RThroughput: 2.5
# 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: 1 0 0.50 xorl %eax, %eax
# CHECK-NEXT: 1 1 0.50 movl %eax, %ebx
# CHECK-NEXT: 1 1 0.50 movl %ebx, %ecx
# CHECK-NEXT: 1 1 0.50 movl %ecx, %edx
# CHECK-NEXT: 1 1 0.50 movl %edx, %eax
# CHECK: Register File statistics:
# CHECK-NEXT: Total number of mappings created: 0
# CHECK-NEXT: Max number of mappings used: 0
# CHECK: * Register File #1 -- JFpuPRF:
# CHECK-NEXT: Number of physical registers: 72
# CHECK-NEXT: Total number of mappings created: 0
# CHECK-NEXT: Max number of mappings used: 0
# CHECK: * Register File #2 -- JIntegerPRF:
# CHECK-NEXT: Number of physical registers: 64
# CHECK-NEXT: Total number of mappings created: 0
# CHECK-NEXT: Max number of mappings used: 0
# CHECK-NEXT: Number of optimizable moves: 12
# CHECK-NEXT: Number of moves eliminated: 12 (100.0%)
# CHECK-NEXT: Number of zero moves: 12 (100.0%)
# CHECK-NEXT: Max moves eliminated per cycle: 2
# CHECK: Resources:
# CHECK-NEXT: [0] - JALU0
# CHECK-NEXT: [1] - JALU1
# CHECK-NEXT: [2] - JDiv
# CHECK-NEXT: [3] - JFPA
# CHECK-NEXT: [4] - JFPM
# CHECK-NEXT: [5] - JFPU0
# CHECK-NEXT: [6] - JFPU1
# CHECK-NEXT: [7] - JLAGU
# CHECK-NEXT: [8] - JMul
# CHECK-NEXT: [9] - JSAGU
# CHECK-NEXT: [10] - JSTC
# CHECK-NEXT: [11] - JVALU0
# CHECK-NEXT: [12] - JVALU1
# CHECK-NEXT: [13] - JVIMUL
# CHECK: Resource pressure per iteration:
# CHECK-NEXT: [0] [1] [2] [3] [4] [5] [6] [7] [8] [9] [10] [11] [12] [13]
# CHECK-NEXT: - - - - - - - - - - - - - -
# CHECK: Resource pressure by instruction:
# CHECK-NEXT: [0] [1] [2] [3] [4] [5] [6] [7] [8] [9] [10] [11] [12] [13] Instructions:
# CHECK-NEXT: - - - - - - - - - - - - - - xorl %eax, %eax
# CHECK-NEXT: - - - - - - - - - - - - - - movl %eax, %ebx
# CHECK-NEXT: - - - - - - - - - - - - - - movl %ebx, %ecx
# CHECK-NEXT: - - - - - - - - - - - - - - movl %ecx, %edx
# CHECK-NEXT: - - - - - - - - - - - - - - movl %edx, %eax
# CHECK: Timeline view:
# CHECK-NEXT: Index 012345678
# CHECK: [0,0] DR . . xorl %eax, %eax
# CHECK-NEXT: [0,1] DR . . movl %eax, %ebx
# CHECK-NEXT: [0,2] .DR . . movl %ebx, %ecx
# CHECK-NEXT: [0,3] .DR . . movl %ecx, %edx
# CHECK-NEXT: [0,4] . DR . . movl %edx, %eax
# CHECK-NEXT: [1,0] . DR . . xorl %eax, %eax
# CHECK-NEXT: [1,1] . DR. . movl %eax, %ebx
# CHECK-NEXT: [1,2] . DR. . movl %ebx, %ecx
# CHECK-NEXT: [1,3] . DR . movl %ecx, %edx
# CHECK-NEXT: [1,4] . DR . movl %edx, %eax
# CHECK-NEXT: [2,0] . DR . xorl %eax, %eax
# CHECK-NEXT: [2,1] . DR . movl %eax, %ebx
# CHECK-NEXT: [2,2] . .DR. movl %ebx, %ecx
# CHECK-NEXT: [2,3] . .DR. movl %ecx, %edx
# CHECK-NEXT: [2,4] . . DR movl %edx, %eax
# 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. 3 0.0 0.0 0.0 xorl %eax, %eax
# CHECK-NEXT: 1. 3 0.0 0.0 0.0 movl %eax, %ebx
# CHECK-NEXT: 2. 3 0.0 0.0 0.0 movl %ebx, %ecx
# CHECK-NEXT: 3. 3 0.0 0.0 0.0 movl %ecx, %edx
# CHECK-NEXT: 4. 3 0.0 0.0 0.0 movl %edx, %eax
# CHECK-NEXT: 3 0.0 0.0 0.0 <total>