[PATCH] D158256: [RISCV] Fix assertion failure when zcmp extension is enabled.

garvit gupta via Phabricator via llvm-commits llvm-commits at lists.llvm.org
Thu Aug 24 23:32:38 PDT 2023


garvitgupta08 updated this revision to Diff 553374.
garvitgupta08 added a comment.

Addressed review comments to llvm/test/CodeGen/RISCV/zcmp-prolog-epilog-crash.ll from D158256 <https://reviews.llvm.org/D158256>:

Do we need the hidden and local_unnamed_addr attributes?
DONE

icmp slt i32 poison, poison doesn't make sense. The compiler would be allowed to delete it. So a future optimization could break this test.
DONE

store i32 0, ptr null, align 4 is a store to null which is undefined behavior. So the compiler is allowed to delete it. Again a future optimization could delete it and break this test.
DONE

Use update_llc_test_checks.py
DONE

Though why is there an IR test and a MIR test? The MIR test seems preferable, surely?
Please feel free to drop: llvm/test/CodeGen/RISCV/zcmp-prolog-epilog-crash.ll

Though it looks like the same code is generated for both so can share one prefix?
Actually, there is a difference ...

nounwind
DONE

Space between declaration and definition
DONE

Clean up the IR of these comments?
DONE

Dangling attribute reference
DONE

This seems overly-reduced
Asked for clarification ...

Fix // No newline at end of file
DONE?


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D158256/new/

https://reviews.llvm.org/D158256

Files:
  llvm/lib/Target/RISCV/RISCVFrameLowering.cpp
  llvm/test/CodeGen/RISCV/zcmp-prolog-epilog-crash.ll
  llvm/test/CodeGen/RISCV/zcmp-prolog-epilog-crash.mir

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