[llvm] r336292 - [X86][BtVer2][MCA][NFC] Add CMPEQ dependency-breaking one-idioms tests
Roman Lebedev via llvm-commits
llvm-commits at lists.llvm.org
Wed Jul 4 10:32:44 PDT 2018
Author: lebedevri
Date: Wed Jul 4 10:32:44 2018
New Revision: 336292
URL: http://llvm.org/viewvc/llvm-project?rev=336292&view=rev
Log:
[X86][BtVer2][MCA][NFC] Add CMPEQ dependency-breaking one-idioms tests
Summary: As per `Agner's Microarchitecture doc
(21.8 AMD Bobcat and Jaguar pipeline - Dependency-breaking instructions)`,
these, like zero-idioms, are dependency-breaking,
although they produce ones and still consume resources.
FIXME: as discussed in D48877, llvm-mca handling is broken for these.
Reviewers: andreadb
Reviewed By: andreadb
Subscribers: gbedwell, RKSimon, llvm-commits
Differential Revision: https://reviews.llvm.org/D48876
Added:
llvm/trunk/test/tools/llvm-mca/X86/BtVer2/one-idioms.s
Modified:
llvm/trunk/test/tools/llvm-mca/X86/BtVer2/zero-idioms.s
Added: llvm/trunk/test/tools/llvm-mca/X86/BtVer2/one-idioms.s
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/tools/llvm-mca/X86/BtVer2/one-idioms.s?rev=336292&view=auto
==============================================================================
--- llvm/trunk/test/tools/llvm-mca/X86/BtVer2/one-idioms.s (added)
+++ llvm/trunk/test/tools/llvm-mca/X86/BtVer2/one-idioms.s Wed Jul 4 10:32:44 2018
@@ -0,0 +1,154 @@
+# NOTE: Assertions have been autogenerated by utils/update_mca_test_checks.py
+# RUN: llvm-mca -mtriple=x86_64-unknown-unknown -mcpu=btver2 -timeline -register-file-stats -iterations=1 < %s | FileCheck %s
+
+# These are dependency-breaking one-idioms.
+# Much like zero-idioms, but they produce ones, and do consume resources.
+
+pcmpeqb %mm2, %mm2
+pcmpeqd %mm2, %mm2
+# pcmpeqq %mm2, %mm2 # invalid operand for instruction
+pcmpeqw %mm2, %mm2
+
+pcmpeqb %xmm2, %xmm2
+pcmpeqd %xmm2, %xmm2
+pcmpeqq %xmm2, %xmm2
+pcmpeqw %xmm2, %xmm2
+
+vpcmpeqb %xmm3, %xmm3, %xmm3
+vpcmpeqd %xmm3, %xmm3, %xmm3
+vpcmpeqq %xmm3, %xmm3, %xmm3
+vpcmpeqw %xmm3, %xmm3, %xmm3
+
+vpcmpeqb %xmm3, %xmm3, %xmm5
+vpcmpeqd %xmm3, %xmm3, %xmm5
+vpcmpeqq %xmm3, %xmm3, %xmm5
+vpcmpeqw %xmm3, %xmm3, %xmm5
+
+# FIXME: their handling is broken in llvm-mca.
+
+# CHECK: Iterations: 1
+# CHECK-NEXT: Instructions: 15
+# CHECK-NEXT: Total Cycles: 12
+# CHECK-NEXT: Dispatch Width: 2
+# CHECK-NEXT: IPC: 1.25
+# CHECK-NEXT: Block RThroughput: 7.5
+
+# 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 pcmpeqb %mm2, %mm2
+# CHECK-NEXT: 1 1 0.50 pcmpeqd %mm2, %mm2
+# CHECK-NEXT: 1 1 0.50 pcmpeqw %mm2, %mm2
+# CHECK-NEXT: 1 1 0.50 pcmpeqb %xmm2, %xmm2
+# CHECK-NEXT: 1 1 0.50 pcmpeqd %xmm2, %xmm2
+# CHECK-NEXT: 1 1 0.50 pcmpeqq %xmm2, %xmm2
+# CHECK-NEXT: 1 1 0.50 pcmpeqw %xmm2, %xmm2
+# CHECK-NEXT: 1 1 0.50 vpcmpeqb %xmm3, %xmm3, %xmm3
+# CHECK-NEXT: 1 1 0.50 vpcmpeqd %xmm3, %xmm3, %xmm3
+# CHECK-NEXT: 1 1 0.50 vpcmpeqq %xmm3, %xmm3, %xmm3
+# CHECK-NEXT: 1 1 0.50 vpcmpeqw %xmm3, %xmm3, %xmm3
+# CHECK-NEXT: 1 1 0.50 vpcmpeqb %xmm3, %xmm3, %xmm5
+# CHECK-NEXT: 1 1 0.50 vpcmpeqd %xmm3, %xmm3, %xmm5
+# CHECK-NEXT: 1 1 0.50 vpcmpeqq %xmm3, %xmm3, %xmm5
+# CHECK-NEXT: 1 1 0.50 vpcmpeqw %xmm3, %xmm3, %xmm5
+
+# CHECK: Register File statistics:
+# CHECK-NEXT: Total number of mappings created: 15
+# CHECK-NEXT: Max number of mappings used: 8
+
+# CHECK: * Register File #1 -- JFpuPRF:
+# CHECK-NEXT: Number of physical registers: 72
+# CHECK-NEXT: Total number of mappings created: 15
+# CHECK-NEXT: Max number of mappings used: 8
+
+# 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: 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: - - - - - 7.00 8.00 - - - - 7.00 8.00 -
+
+# 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 - pcmpeqb %mm2, %mm2
+# CHECK-NEXT: - - - - - 1.00 - - - - - 1.00 - - pcmpeqd %mm2, %mm2
+# CHECK-NEXT: - - - - - 1.00 - - - - - 1.00 - - pcmpeqw %mm2, %mm2
+# CHECK-NEXT: - - - - - - 1.00 - - - - - 1.00 - pcmpeqb %xmm2, %xmm2
+# CHECK-NEXT: - - - - - - 1.00 - - - - - 1.00 - pcmpeqd %xmm2, %xmm2
+# CHECK-NEXT: - - - - - 1.00 - - - - - 1.00 - - pcmpeqq %xmm2, %xmm2
+# CHECK-NEXT: - - - - - 1.00 - - - - - 1.00 - - pcmpeqw %xmm2, %xmm2
+# CHECK-NEXT: - - - - - - 1.00 - - - - - 1.00 - vpcmpeqb %xmm3, %xmm3, %xmm3
+# CHECK-NEXT: - - - - - - 1.00 - - - - - 1.00 - vpcmpeqd %xmm3, %xmm3, %xmm3
+# CHECK-NEXT: - - - - - 1.00 - - - - - 1.00 - - vpcmpeqq %xmm3, %xmm3, %xmm3
+# CHECK-NEXT: - - - - - - 1.00 - - - - - 1.00 - vpcmpeqw %xmm3, %xmm3, %xmm3
+# CHECK-NEXT: - - - - - 1.00 - - - - - 1.00 - - vpcmpeqb %xmm3, %xmm3, %xmm5
+# CHECK-NEXT: - - - - - - 1.00 - - - - - 1.00 - vpcmpeqd %xmm3, %xmm3, %xmm5
+# CHECK-NEXT: - - - - - 1.00 - - - - - 1.00 - - vpcmpeqq %xmm3, %xmm3, %xmm5
+# CHECK-NEXT: - - - - - - 1.00 - - - - - 1.00 - vpcmpeqw %xmm3, %xmm3, %xmm5
+
+# CHECK: Timeline view:
+# CHECK-NEXT: 01
+# CHECK-NEXT: Index 0123456789
+
+# CHECK: [0,0] DeER . .. pcmpeqb %mm2, %mm2
+# CHECK-NEXT: [0,1] D=eER. .. pcmpeqd %mm2, %mm2
+# CHECK-NEXT: [0,2] .D=eER .. pcmpeqw %mm2, %mm2
+# CHECK-NEXT: [0,3] .DeE-R .. pcmpeqb %xmm2, %xmm2
+# CHECK-NEXT: [0,4] . DeE-R .. pcmpeqd %xmm2, %xmm2
+# CHECK-NEXT: [0,5] . D=eER .. pcmpeqq %xmm2, %xmm2
+# CHECK-NEXT: [0,6] . D=eER .. pcmpeqw %xmm2, %xmm2
+# CHECK-NEXT: [0,7] . DeE-R .. vpcmpeqb %xmm3, %xmm3, %xmm3
+# CHECK-NEXT: [0,8] . DeE-R .. vpcmpeqd %xmm3, %xmm3, %xmm3
+# CHECK-NEXT: [0,9] . D=eER .. vpcmpeqq %xmm3, %xmm3, %xmm3
+# CHECK-NEXT: [0,10] . D=eER.. vpcmpeqw %xmm3, %xmm3, %xmm3
+# CHECK-NEXT: [0,11] . D==eER. vpcmpeqb %xmm3, %xmm3, %xmm5
+# CHECK-NEXT: [0,12] . .D=eER. vpcmpeqd %xmm3, %xmm3, %xmm5
+# CHECK-NEXT: [0,13] . .D==eER vpcmpeqq %xmm3, %xmm3, %xmm5
+# CHECK-NEXT: [0,14] . . D=eER vpcmpeqw %xmm3, %xmm3, %xmm5
+
+# 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. 1 1.0 1.0 0.0 pcmpeqb %mm2, %mm2
+# CHECK-NEXT: 1. 1 2.0 0.0 0.0 pcmpeqd %mm2, %mm2
+# CHECK-NEXT: 2. 1 2.0 0.0 0.0 pcmpeqw %mm2, %mm2
+# CHECK-NEXT: 3. 1 1.0 1.0 1.0 pcmpeqb %xmm2, %xmm2
+# CHECK-NEXT: 4. 1 1.0 0.0 1.0 pcmpeqd %xmm2, %xmm2
+# CHECK-NEXT: 5. 1 2.0 0.0 0.0 pcmpeqq %xmm2, %xmm2
+# CHECK-NEXT: 6. 1 2.0 0.0 0.0 pcmpeqw %xmm2, %xmm2
+# CHECK-NEXT: 7. 1 1.0 1.0 1.0 vpcmpeqb %xmm3, %xmm3, %xmm3
+# CHECK-NEXT: 8. 1 1.0 0.0 1.0 vpcmpeqd %xmm3, %xmm3, %xmm3
+# CHECK-NEXT: 9. 1 2.0 0.0 0.0 vpcmpeqq %xmm3, %xmm3, %xmm3
+# CHECK-NEXT: 10. 1 2.0 0.0 0.0 vpcmpeqw %xmm3, %xmm3, %xmm3
+# CHECK-NEXT: 11. 1 3.0 0.0 0.0 vpcmpeqb %xmm3, %xmm3, %xmm5
+# CHECK-NEXT: 12. 1 2.0 0.0 0.0 vpcmpeqd %xmm3, %xmm3, %xmm5
+# CHECK-NEXT: 13. 1 3.0 1.0 0.0 vpcmpeqq %xmm3, %xmm3, %xmm5
+# CHECK-NEXT: 14. 1 2.0 1.0 0.0 vpcmpeqw %xmm3, %xmm3, %xmm5
Modified: llvm/trunk/test/tools/llvm-mca/X86/BtVer2/zero-idioms.s
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/tools/llvm-mca/X86/BtVer2/zero-idioms.s?rev=336292&r1=336291&r2=336292&view=diff
==============================================================================
--- llvm/trunk/test/tools/llvm-mca/X86/BtVer2/zero-idioms.s (original)
+++ llvm/trunk/test/tools/llvm-mca/X86/BtVer2/zero-idioms.s Wed Jul 4 10:32:44 2018
@@ -8,11 +8,14 @@ xorq %rax, %rax
pcmpgtb %mm2, %mm2
pcmpgtd %mm2, %mm2
+# pcmpgtq %mm2, %mm2 # invalid operand for instruction
pcmpgtw %mm2, %mm2
+
pcmpgtb %xmm2, %xmm2
pcmpgtd %xmm2, %xmm2
pcmpgtq %xmm2, %xmm2
pcmpgtw %xmm2, %xmm2
+
vpcmpgtb %xmm3, %xmm3, %xmm3
vpcmpgtd %xmm3, %xmm3, %xmm3
vpcmpgtq %xmm3, %xmm3, %xmm3
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