diff options
Diffstat (limited to 'llvm')
4 files changed, 310 insertions, 0 deletions
diff --git a/llvm/test/tools/llvm-mca/X86/BtVer2/partial-reg-update-3.s b/llvm/test/tools/llvm-mca/X86/BtVer2/partial-reg-update-3.s new file mode 100644 index 00000000000..a6e2b96d844 --- /dev/null +++ b/llvm/test/tools/llvm-mca/X86/BtVer2/partial-reg-update-3.s @@ -0,0 +1,81 @@ +# NOTE: Assertions have been autogenerated by utils/update_mca_test_checks.py +# RUN: llvm-mca -mtriple=x86_64-unknown-unknown -mcpu=btver2 -iterations=1500 -timeline -timeline-max-iterations=3 < %s | FileCheck %s + +# perf stat reports a throughput of 1.00 IPC for this code snippet. + +# The ILP is limited by the false dependency on %dx. So, the mov cannot execute +# in parallel with the add. + +add %cx, %dx +mov %ax, %dx +xor %bx, %dx + +# CHECK: Iterations: 1500 +# CHECK-NEXT: Instructions: 4500 +# CHECK-NEXT: Total Cycles: 2254 +# CHECK-NEXT: Dispatch Width: 2 +# CHECK-NEXT: IPC: 2.00 +# CHECK-NEXT: Block RThroughput: 1.5 + +# 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 + +# CHECK: [1] [2] [3] [4] [5] [6] Instructions: +# CHECK-NEXT: 1 1 0.50 addw %cx, %dx +# CHECK-NEXT: 1 1 0.50 movw %ax, %dx +# CHECK-NEXT: 1 1 0.50 xorw %bx, %dx + +# 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: 1.50 1.50 - - - - - - - - - - - - + +# CHECK: Resource pressure by instruction: +# CHECK-NEXT: [0] [1] [2] [3] [4] [5] [6] [7] [8] [9] [10] [11] [12] [13] Instructions: +# CHECK-NEXT: 1.00 - - - - - - - - - - - - - addw %cx, %dx +# CHECK-NEXT: - 1.00 - - - - - - - - - - - - movw %ax, %dx +# CHECK-NEXT: 0.50 0.50 - - - - - - - - - - - - xorw %bx, %dx + +# CHECK: Timeline view: +# CHECK-NEXT: Index 012345678 + +# CHECK: [0,0] DeER . . addw %cx, %dx +# CHECK-NEXT: [0,1] DeER . . movw %ax, %dx +# CHECK-NEXT: [0,2] .DeER. . xorw %bx, %dx +# CHECK-NEXT: [1,0] .D=eER . addw %cx, %dx +# CHECK-NEXT: [1,1] . DeER . movw %ax, %dx +# CHECK-NEXT: [1,2] . D=eER . xorw %bx, %dx +# CHECK-NEXT: [2,0] . D=eER. addw %cx, %dx +# CHECK-NEXT: [2,1] . DeE-R. movw %ax, %dx +# CHECK-NEXT: [2,2] . DeE-R xorw %bx, %dx + +# 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 1.7 0.3 0.0 addw %cx, %dx +# CHECK-NEXT: 1. 3 1.0 1.0 0.3 movw %ax, %dx +# CHECK-NEXT: 2. 3 1.3 0.0 0.3 xorw %bx, %dx diff --git a/llvm/test/tools/llvm-mca/X86/BtVer2/partial-reg-update-4.s b/llvm/test/tools/llvm-mca/X86/BtVer2/partial-reg-update-4.s new file mode 100644 index 00000000000..dda53ba4a99 --- /dev/null +++ b/llvm/test/tools/llvm-mca/X86/BtVer2/partial-reg-update-4.s @@ -0,0 +1,82 @@ +# NOTE: Assertions have been autogenerated by utils/update_mca_test_checks.py +# RUN: llvm-mca -mtriple=x86_64-unknown-unknown -mcpu=btver2 -iterations=1500 -timeline -timeline-max-iterations=3 < %s | FileCheck %s + +# perf stat reports a throughput of 0.60 IPC for this code snippet. + +# The lzcnt cannot execute in parallel with the imul because there is a false +# dependency on %bx. + +imul %ax, %bx +lzcnt %ax, %bx +add %cx, %bx + +# CHECK: Iterations: 1500 +# CHECK-NEXT: Instructions: 4500 +# CHECK-NEXT: Total Cycles: 3006 +# CHECK-NEXT: Dispatch Width: 2 +# CHECK-NEXT: IPC: 1.50 +# CHECK-NEXT: Block RThroughput: 2.0 + +# 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 + +# CHECK: [1] [2] [3] [4] [5] [6] Instructions: +# CHECK-NEXT: 2 3 1.00 imulw %ax, %bx +# CHECK-NEXT: 1 1 0.50 lzcntw %ax, %bx +# CHECK-NEXT: 1 1 0.50 addw %cx, %bx + +# 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: 1.50 1.50 - - - - - - 1.00 - - - - - + +# CHECK: Resource pressure by instruction: +# CHECK-NEXT: [0] [1] [2] [3] [4] [5] [6] [7] [8] [9] [10] [11] [12] [13] Instructions: +# CHECK-NEXT: - 1.00 - - - - - - 1.00 - - - - - imulw %ax, %bx +# CHECK-NEXT: 1.00 - - - - - - - - - - - - - lzcntw %ax, %bx +# CHECK-NEXT: 0.50 0.50 - - - - - - - - - - - - addw %cx, %bx + +# CHECK: Timeline view: +# CHECK-NEXT: 01 +# CHECK-NEXT: Index 0123456789 + +# CHECK: [0,0] DeeeER .. imulw %ax, %bx +# CHECK-NEXT: [0,1] .DeE-R .. lzcntw %ax, %bx +# CHECK-NEXT: [0,2] .D=eE-R .. addw %cx, %bx +# CHECK-NEXT: [1,0] . D=eeeER .. imulw %ax, %bx +# CHECK-NEXT: [1,1] . DeE--R .. lzcntw %ax, %bx +# CHECK-NEXT: [1,2] . D=eE--R.. addw %cx, %bx +# CHECK-NEXT: [2,0] . D=eeeER. imulw %ax, %bx +# CHECK-NEXT: [2,1] . DeE--R. lzcntw %ax, %bx +# CHECK-NEXT: [2,2] . D=eE--R addw %cx, %bx + +# 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 1.7 0.3 0.0 imulw %ax, %bx +# CHECK-NEXT: 1. 3 1.0 1.0 1.7 lzcntw %ax, %bx +# CHECK-NEXT: 2. 3 2.0 0.0 1.7 addw %cx, %bx diff --git a/llvm/test/tools/llvm-mca/X86/BtVer2/partial-reg-update-5.s b/llvm/test/tools/llvm-mca/X86/BtVer2/partial-reg-update-5.s new file mode 100644 index 00000000000..db64be67e19 --- /dev/null +++ b/llvm/test/tools/llvm-mca/X86/BtVer2/partial-reg-update-5.s @@ -0,0 +1,64 @@ +# NOTE: Assertions have been autogenerated by utils/update_mca_test_checks.py +# RUN: llvm-mca -mtriple=x86_64-unknown-unknown -mcpu=btver2 -iterations=1500 -timeline -timeline-max-iterations=3 < %s | FileCheck %s + +# perf stat reports a throughput of 1.00 IPC for this code snippet. + +lzcnt %ax, %bx ## partial register stall. + +# CHECK: Iterations: 1500 +# CHECK-NEXT: Instructions: 1500 +# CHECK-NEXT: Total Cycles: 753 +# CHECK-NEXT: Dispatch Width: 2 +# CHECK-NEXT: IPC: 1.99 +# CHECK-NEXT: Block RThroughput: 0.5 + +# 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 + +# CHECK: [1] [2] [3] [4] [5] [6] Instructions: +# CHECK-NEXT: 1 1 0.50 lzcntw %ax, %bx + +# 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: 0.50 0.50 - - - - - - - - - - - - + +# CHECK: Resource pressure by instruction: +# CHECK-NEXT: [0] [1] [2] [3] [4] [5] [6] [7] [8] [9] [10] [11] [12] [13] Instructions: +# CHECK-NEXT: 0.50 0.50 - - - - - - - - - - - - lzcntw %ax, %bx + +# CHECK: Timeline view: +# CHECK-NEXT: Index 01234 + +# CHECK: [0,0] DeER. lzcntw %ax, %bx +# CHECK-NEXT: [1,0] DeER. lzcntw %ax, %bx +# CHECK-NEXT: [2,0] .DeER lzcntw %ax, %bx + +# 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 1.0 1.0 0.0 lzcntw %ax, %bx diff --git a/llvm/test/tools/llvm-mca/X86/BtVer2/partial-reg-update-6.s b/llvm/test/tools/llvm-mca/X86/BtVer2/partial-reg-update-6.s new file mode 100644 index 00000000000..c66b5678f31 --- /dev/null +++ b/llvm/test/tools/llvm-mca/X86/BtVer2/partial-reg-update-6.s @@ -0,0 +1,83 @@ +# NOTE: Assertions have been autogenerated by utils/update_mca_test_checks.py +# RUN: llvm-mca -mtriple=x86_64-unknown-unknown -mcpu=btver2 -iterations=1500 -timeline -timeline-max-iterations=3 < %s | FileCheck %s + +# perf stat reports a throughput of 0.60 IPC for this code snippet. +# Each lzcnt has a false dependency on %ecx; the first lzcnt has to wait on the +# imul. However, the folded load can start immediately. +# The last lzcnt has a false dependency on %cx. However, even in this case, the +# folded load can start immediately. + +imul %edx, %ecx +lzcnt (%rsp), %cx +lzcnt 2(%rsp), %cx + +# CHECK: Iterations: 1500 +# CHECK-NEXT: Instructions: 4500 +# CHECK-NEXT: Total Cycles: 4507 +# CHECK-NEXT: Dispatch Width: 2 +# CHECK-NEXT: IPC: 1.00 +# CHECK-NEXT: Block RThroughput: 2.0 + +# 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 + +# CHECK: [1] [2] [3] [4] [5] [6] Instructions: +# CHECK-NEXT: 2 3 1.00 imull %edx, %ecx +# CHECK-NEXT: 1 4 1.00 * lzcntw (%rsp), %cx +# CHECK-NEXT: 1 4 1.00 * lzcntw 2(%rsp), %cx + +# 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: 1.50 1.50 - - - - - 2.00 1.00 - - - - - + +# CHECK: Resource pressure by instruction: +# CHECK-NEXT: [0] [1] [2] [3] [4] [5] [6] [7] [8] [9] [10] [11] [12] [13] Instructions: +# CHECK-NEXT: - 1.00 - - - - - - 1.00 - - - - - imull %edx, %ecx +# CHECK-NEXT: 0.99 0.01 - - - - - 1.00 - - - - - - lzcntw (%rsp), %cx +# CHECK-NEXT: 0.50 0.50 - - - - - 1.00 - - - - - - lzcntw 2(%rsp), %cx + +# CHECK: Timeline view: +# CHECK-NEXT: 012345 +# CHECK-NEXT: Index 0123456789 + +# CHECK: [0,0] DeeeER . . imull %edx, %ecx +# CHECK-NEXT: [0,1] .DeeeeER . . lzcntw (%rsp), %cx +# CHECK-NEXT: [0,2] .D=eeeeER . . lzcntw 2(%rsp), %cx +# CHECK-NEXT: [1,0] . D====eeeER . imull %edx, %ecx +# CHECK-NEXT: [1,1] . DeeeeE--R . lzcntw (%rsp), %cx +# CHECK-NEXT: [1,2] . D=eeeeE--R . lzcntw 2(%rsp), %cx +# CHECK-NEXT: [2,0] . D=====eeeER. imull %edx, %ecx +# CHECK-NEXT: [2,1] . DeeeeE---R. lzcntw (%rsp), %cx +# CHECK-NEXT: [2,2] . D=eeeeE---R lzcntw 2(%rsp), %cx + +# 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 4.0 0.3 0.0 imull %edx, %ecx +# CHECK-NEXT: 1. 3 1.0 1.0 1.7 lzcntw (%rsp), %cx +# CHECK-NEXT: 2. 3 2.0 2.0 1.7 lzcntw 2(%rsp), %cx |
