[PATCH] D125405: [UpdateTestChecks] Use a counter for unpredictable FileCheck variables

[Alexander Richardson via Phabricator via llvm-commits]

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Variable captures such as `<MCInst #` can change based on unrelated changes
to the LLVM backends, to avoid the generated test cases being different
use an incrementing counter for variable names instead of using the
actual value from the output file.
This change may also be beneficial for some nameless IR variables
(especially when combined with filtering of output), but for now I've
restricted this change to the obvious candidates (--asm-show-inst output).

Depends on D125307 <https://reviews.llvm.org/D125307>


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D125405

Files:
  llvm/test/tools/UpdateTestChecks/update_llc_test_checks/Inputs/asm-show-inst.ll.expected
  llvm/utils/UpdateTestChecks/common.py

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