[llvm] bda9ca3 - [NFC][X86][MCA] AMD Zen 3: add tests with non-eliminatible MMX moves
Roman Lebedev via llvm-commits
llvm-commits at lists.llvm.org
Fri May 7 03:56:40 PDT 2021
Author: Roman Lebedev
Date: 2021-05-07T13:56:07+03:00
New Revision: bda9ca3e44c1b67d1c4ed145bb7071c340fe8961
URL: https://github.com/llvm/llvm-project/commit/bda9ca3e44c1b67d1c4ed145bb7071c340fe8961
DIFF: https://github.com/llvm/llvm-project/commit/bda9ca3e44c1b67d1c4ed145bb7071c340fe8961.diff
LOG: [NFC][X86][MCA] AMD Zen 3: add tests with non-eliminatible MMX moves
In Zen3, MMX moves are *not* eliminated,
i've verified this with llvm-exegesis.
Added:
llvm/test/tools/llvm-mca/X86/Znver3/reg-move-elimination-mmx.s
Modified:
Removed:
################################################################################
diff --git a/llvm/test/tools/llvm-mca/X86/Znver3/reg-move-elimination-mmx.s b/llvm/test/tools/llvm-mca/X86/Znver3/reg-move-elimination-mmx.s
new file mode 100644
index 000000000000..e6b3509a8ce9
--- /dev/null
+++ b/llvm/test/tools/llvm-mca/X86/Znver3/reg-move-elimination-mmx.s
@@ -0,0 +1,123 @@
+# NOTE: Assertions have been autogenerated by utils/update_mca_test_checks.py
+# RUN: llvm-mca -mtriple=x86_64-unknown-unknown -mcpu=znver3 -iterations=1 -timeline -register-file-stats < %s | FileCheck %s
+
+movq %mm0, %mm1
+movq %mm1, %mm2
+movq %mm2, %mm3
+movq %mm3, %mm4
+movq %mm4, %mm5
+movq %mm5, %mm6
+movq %mm6, %mm7
+movq %mm7, %mm0
+
+# CHECK: Iterations: 1
+# CHECK-NEXT: Instructions: 8
+# CHECK-NEXT: Total Cycles: 11
+# CHECK-NEXT: Total uOps: 8
+
+# CHECK: Dispatch Width: 6
+# CHECK-NEXT: uOps Per Cycle: 0.73
+# CHECK-NEXT: IPC: 0.73
+# 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 (U)
+
+# CHECK: [1] [2] [3] [4] [5] [6] Instructions:
+# CHECK-NEXT: 1 1 0.25 movq %mm0, %mm1
+# CHECK-NEXT: 1 1 0.25 movq %mm1, %mm2
+# CHECK-NEXT: 1 1 0.25 movq %mm2, %mm3
+# CHECK-NEXT: 1 1 0.25 movq %mm3, %mm4
+# CHECK-NEXT: 1 1 0.25 movq %mm4, %mm5
+# CHECK-NEXT: 1 1 0.25 movq %mm5, %mm6
+# CHECK-NEXT: 1 1 0.25 movq %mm6, %mm7
+# CHECK-NEXT: 1 1 0.25 movq %mm7, %mm0
+
+# CHECK: Register File statistics:
+# CHECK-NEXT: Total number of mappings created: 8
+# CHECK-NEXT: Max number of mappings used: 8
+
+# CHECK: * Register File #1 -- Zn3FpPRF:
+# CHECK-NEXT: Number of physical registers: 160
+# CHECK-NEXT: Total number of mappings created: 8
+# CHECK-NEXT: Max number of mappings used: 8
+
+# CHECK: * Register File #2 -- Zn3IntegerPRF:
+# CHECK-NEXT: Number of physical registers: 192
+# CHECK-NEXT: Total number of mappings created: 0
+# CHECK-NEXT: Max number of mappings used: 0
+
+# 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: - - - - - - - - 2.00 2.00 2.00 2.00 - - - - - - - - - - -
+
+# 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: - - - - - - - - - - - 1.00 - - - - - - - - - - - movq %mm0, %mm1
+# CHECK-NEXT: - - - - - - - - - - 1.00 - - - - - - - - - - - - movq %mm1, %mm2
+# CHECK-NEXT: - - - - - - - - - 1.00 - - - - - - - - - - - - - movq %mm2, %mm3
+# CHECK-NEXT: - - - - - - - - 1.00 - - - - - - - - - - - - - - movq %mm3, %mm4
+# CHECK-NEXT: - - - - - - - - - - - 1.00 - - - - - - - - - - - movq %mm4, %mm5
+# CHECK-NEXT: - - - - - - - - - - 1.00 - - - - - - - - - - - - movq %mm5, %mm6
+# CHECK-NEXT: - - - - - - - - - 1.00 - - - - - - - - - - - - - movq %mm6, %mm7
+# CHECK-NEXT: - - - - - - - - 1.00 - - - - - - - - - - - - - - movq %mm7, %mm0
+
+# CHECK: Timeline view:
+# CHECK-NEXT: 0
+# CHECK-NEXT: Index 0123456789
+
+# CHECK: [0,0] DeER . . movq %mm0, %mm1
+# CHECK-NEXT: [0,1] D=eER. . movq %mm1, %mm2
+# CHECK-NEXT: [0,2] D==eER . movq %mm2, %mm3
+# CHECK-NEXT: [0,3] D===eER . movq %mm3, %mm4
+# CHECK-NEXT: [0,4] D====eER . movq %mm4, %mm5
+# CHECK-NEXT: [0,5] D=====eER . movq %mm5, %mm6
+# CHECK-NEXT: [0,6] .D=====eER. movq %mm6, %mm7
+# CHECK-NEXT: [0,7] .D======eER movq %mm7, %mm0
+
+# 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 movq %mm0, %mm1
+# CHECK-NEXT: 1. 1 2.0 0.0 0.0 movq %mm1, %mm2
+# CHECK-NEXT: 2. 1 3.0 0.0 0.0 movq %mm2, %mm3
+# CHECK-NEXT: 3. 1 4.0 0.0 0.0 movq %mm3, %mm4
+# CHECK-NEXT: 4. 1 5.0 0.0 0.0 movq %mm4, %mm5
+# CHECK-NEXT: 5. 1 6.0 0.0 0.0 movq %mm5, %mm6
+# CHECK-NEXT: 6. 1 6.0 0.0 0.0 movq %mm6, %mm7
+# CHECK-NEXT: 7. 1 7.0 0.0 0.0 movq %mm7, %mm0
+# CHECK-NEXT: 1 4.3 0.1 0.0 <total>
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