[llvm] [llvm-exegesis] Debug generated disassembly (PR #142540)

[Lakshay Kumar via llvm-commits]

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@@ -0,0 +1,22 @@
+REQUIRES: aarch64-registered-target
+
+RUN: llvm-exegesis -mcpu=neoverse-v2 --benchmark-phase=measure --min-instructions=100 --mode=latency --debug-only="preview-gen-assembly" --opcode-name=ADDVv4i16v 2>&1 | FileCheck %s -check-prefix=PREVIEW
+
+PREVIEW: Generated assembly snippet:
+PREVIEW-NEXT: ```
+PREVIEW:      {{.*}}   movi    d{{[0-9]+}}, #0000000000000000
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lakshayk-nv wrote:

Exegesis sometimes add a `str` instruction in to save register value in stack which will be utilized in snippet. Updated test case to check for address of 0 or 4 for `movi` and address 4 or 8 for `addv`


https://github.com/llvm/llvm-project/pull/142540