[llvm] 8d0e2d2 - [NFC][X86][MCA] AMD Zen 3: add tests for SBB dependency breaking
Roman Lebedev via llvm-commits
llvm-commits at lists.llvm.org
Sun May 9 14:04:08 PDT 2021
Author: Roman Lebedev
Date: 2021-05-10T00:03:20+03:00
New Revision: 8d0e2d2b0f0f555549255ee812f7ff5297b79420
URL: https://github.com/llvm/llvm-project/commit/8d0e2d2b0f0f555549255ee812f7ff5297b79420
DIFF: https://github.com/llvm/llvm-project/commit/8d0e2d2b0f0f555549255ee812f7ff5297b79420.diff
LOG: [NFC][X86][MCA] AMD Zen 3: add tests for SBB dependency breaking
Added:
llvm/test/tools/llvm-mca/X86/Znver3/dependency-breaking-gpr.s
Modified:
Removed:
################################################################################
diff --git a/llvm/test/tools/llvm-mca/X86/Znver3/dependency-breaking-gpr.s b/llvm/test/tools/llvm-mca/X86/Znver3/dependency-breaking-gpr.s
new file mode 100644
index 000000000000..bcf2435ef19c
--- /dev/null
+++ b/llvm/test/tools/llvm-mca/X86/Znver3/dependency-breaking-gpr.s
@@ -0,0 +1,168 @@
+# NOTE: Assertions have been autogenerated by utils/update_mca_test_checks.py
+# RUN: llvm-mca -mtriple=x86_64-unknown-unknown -mcpu=znver3 -timeline -timeline-max-iterations=2 -iterations=1000 < %s | FileCheck %s
+
+# LLVM-MCA-BEGIN
+sbbl %eax, %eax
+mulxl %eax, %eax, %eax
+# LLVM-MCA-END
+
+# LLVM-MCA-BEGIN
+sbbq %rax, %rax
+mulxq %rax, %rax, %rax
+# LLVM-MCA-END
+
+# CHECK: [0] Code Region
+
+# CHECK: Iterations: 1000
+# CHECK-NEXT: Instructions: 2000
+# CHECK-NEXT: Total Cycles: 4003
+# CHECK-NEXT: Total uOps: 3000
+
+# CHECK: Dispatch Width: 6
+# CHECK-NEXT: uOps Per Cycle: 0.75
+# CHECK-NEXT: IPC: 0.50
+# 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: 1 1 1.00 sbbl %eax, %eax
+# CHECK-NEXT: 2 3 1.00 mulxl %eax, %eax, %eax
+
+# 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: - - - 1.33 1.00 1.33 1.34 - - - - - - - - - - - - - - - -
+
+# 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: - - - 1.33 - 1.33 1.34 - - - - - - - - - - - - - - - - sbbl %eax, %eax
+# CHECK-NEXT: - - - - 1.00 - - - - - - - - - - - - - - - - - - mulxl %eax, %eax, %eax
+
+# CHECK: Timeline view:
+# CHECK-NEXT: 0
+# CHECK-NEXT: Index 0123456789
+
+# CHECK: [0,0] DeER . . sbbl %eax, %eax
+# CHECK-NEXT: [0,1] D=eeeER . mulxl %eax, %eax, %eax
+# CHECK-NEXT: [1,0] D====eER . sbbl %eax, %eax
+# CHECK-NEXT: [1,1] D=====eeeER mulxl %eax, %eax, %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. 2 3.0 0.5 0.0 sbbl %eax, %eax
+# CHECK-NEXT: 1. 2 4.0 0.0 0.0 mulxl %eax, %eax, %eax
+# CHECK-NEXT: 2 3.5 0.3 0.0 <total>
+
+# CHECK: [1] Code Region
+
+# CHECK: Iterations: 1000
+# CHECK-NEXT: Instructions: 2000
+# CHECK-NEXT: Total Cycles: 5003
+# CHECK-NEXT: Total uOps: 3000
+
+# CHECK: Dispatch Width: 6
+# CHECK-NEXT: uOps Per Cycle: 0.60
+# CHECK-NEXT: IPC: 0.40
+# 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: 1 1 1.00 sbbq %rax, %rax
+# CHECK-NEXT: 2 4 1.00 mulxq %rax, %rax, %rax
+
+# 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: - - - 1.33 1.00 1.33 1.34 - - - - - - - - - - - - - - - -
+
+# 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: - - - 1.33 - 1.33 1.34 - - - - - - - - - - - - - - - - sbbq %rax, %rax
+# CHECK-NEXT: - - - - 1.00 - - - - - - - - - - - - - - - - - - mulxq %rax, %rax, %rax
+
+# CHECK: Timeline view:
+# CHECK-NEXT: 012
+# CHECK-NEXT: Index 0123456789
+
+# CHECK: [0,0] DeER . . . sbbq %rax, %rax
+# CHECK-NEXT: [0,1] D=eeeeER . . mulxq %rax, %rax, %rax
+# CHECK-NEXT: [1,0] D=====eER . . sbbq %rax, %rax
+# CHECK-NEXT: [1,1] D======eeeeER mulxq %rax, %rax, %rax
+
+# 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 3.5 0.5 0.0 sbbq %rax, %rax
+# CHECK-NEXT: 1. 2 4.5 0.0 0.0 mulxq %rax, %rax, %rax
+# CHECK-NEXT: 2 4.0 0.3 0.0 <total>
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