[llvm] [llvm-exegesis] [AArch64] Resolving "not all operands are initialized by snippet generator" (PR #142529)

[David Green via llvm-commits]

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+# REQUIRES: aarch64-registered-target
+
+
+
+// Test for omitting OperandType::OPERAND_UNKNOWN
+
+// ADDXri: ADD Xd, Xn, #imm{, shift}
+# RUN: llvm-exegesis --mtriple=aarch64 --mcpu=neoverse-v2 --mode=latency --benchmark-phase=prepare-and-assemble-snippet --opcode-name=ADDXri 2>&1 | FileCheck %s --check-prefix=ADDXri_latency
+# ADDXri_latency-NOT: Not all operands were initialized by the snippet generator for ADDXri opcode
+# ADDXri_latency:      ---
+# ADDXri_latency-NEXT: mode: latency
+# ADDXri_latency-NEXT: key:
+# ADDXri_latency-NEXT:   instructions:
+# ADDXri_latency-NEXT:     ADDXri [[REG1:X[0-9]+|LR]] [[REG2:X[0-9]+|LR]] i_0x0 i_0x0
+# ADDXri_latency: ...
+
+# RUN: llvm-exegesis --mtriple=aarch64 --mcpu=neoverse-v2 --mode=inverse_throughput --benchmark-phase=prepare-and-assemble-snippet --opcode-name=ADDXri 2>&1 | FileCheck %s --check-prefix=ADDXri_throughput
+# ADDXri_throughput-NOT: Not all operands were initialized by the snippet generator for ADDXri opcode
+# ADDXri_throughput:      ---
+# ADDXri_throughput-NEXT: mode: inverse_throughput
+# ADDXri_throughput-NEXT: key:
+# ADDXri_throughput-NEXT:   instructions:
+# ADDXri_throughput-NEXT:     ADDXri [[REG1:X[0-9]+|LR]] [[REG2:X[0-9]+|LR]] i_0x0 i_0x0
+# ADDXri_throughput: ...
+
+// MOVIv2s_msl: MOVI vd, #imm{, shift}
+# RUN: llvm-exegesis --mtriple=aarch64 --mcpu=neoverse-v2 --mode=latency  --benchmark-phase=prepare-and-assemble-snippet --opcode-name=MOVIv2s_msl 2>&1 | FileCheck %s --check-prefix=MOVIv2s_msl_latency
+# RUN: llvm-exegesis --mtriple=aarch64 --mcpu=neoverse-v2 --mode=inverse_throughput --benchmark-phase=prepare-and-assemble-snippet --opcode-name=MOVIv2s_msl 2>&1 | FileCheck %s --check-prefix=MOVIv2s_msl_throughput
+# MOVIv2s_msl_latency-NOT: Not all operands were initialized by the snippet generator for MOVIv2s_msl opcode
+
+// TODO: Update this test when serial execution strategy is added
----------------
davemgreen wrote:

How would you add a serial strategy for an operation with no inputs?

https://github.com/llvm/llvm-project/pull/142529