resources-cmpxchg.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=haswell -instruction-tables < %s | FileCheck %s
cmpxchg8b (%rax)
cmpxchg16b (%rax)
lock cmpxchg8b (%rax)
lock cmpxchg16b (%rax)
# 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: 14 17 2.75 * * cmpxchg8b (%rax)
# CHECK-NEXT: 19 22 4.00 * * cmpxchg16b (%rax)
# CHECK-NEXT: 14 17 2.75 * * lock cmpxchg8b (%rax)
# CHECK-NEXT: 19 22 4.00 * * lock cmpxchg16b (%rax)
# CHECK: Resources:
# CHECK-NEXT: [0] - HWDivider
# CHECK-NEXT: [1] - HWFPDivider
# CHECK-NEXT: [2] - HWPort0
# CHECK-NEXT: [3] - HWPort1
# CHECK-NEXT: [4] - HWPort2
# CHECK-NEXT: [5] - HWPort3
# CHECK-NEXT: [6] - HWPort4
# CHECK-NEXT: [7] - HWPort5
# CHECK-NEXT: [8] - HWPort6
# CHECK-NEXT: [9] - HWPort7
# CHECK: Resource pressure per iteration:
# CHECK-NEXT: [0] [1] [2] [3] [4] [5] [6] [7] [8] [9]
# CHECK-NEXT: - - 17.50 7.50 3.33 3.33 4.00 15.50 13.50 1.33
# CHECK: Resource pressure by instruction:
# CHECK-NEXT: [0] [1] [2] [3] [4] [5] [6] [7] [8] [9] Instructions:
# CHECK-NEXT: - - 3.25 2.25 0.83 0.83 1.00 2.25 3.25 0.33 cmpxchg8b (%rax)
# CHECK-NEXT: - - 5.50 1.50 0.83 0.83 1.00 5.50 3.50 0.33 cmpxchg16b (%rax)
# CHECK-NEXT: - - 3.25 2.25 0.83 0.83 1.00 2.25 3.25 0.33 lock cmpxchg8b (%rax)
# CHECK-NEXT: - - 5.50 1.50 0.83 0.83 1.00 5.50 3.50 0.33 lock cmpxchg16b (%rax)