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llvm / llvm-project / ade22765174e64f6c02233eff8d55e6726e1bab1
commitade22765174e64f6c02233eff8d55e6726e1bab1[log] [tgz]
authorAntonio Frighetto <me@antoniofrighetto.com>Mon Mar 24 09:18:32 2025 +0100
committerAntonio Frighetto <me@antoniofrighetto.com>Mon Mar 24 09:19:53 2025 +0100
tree0cdf009d1a1a01c2c25b058e9768fd15c786a4f3
parent376aa741b59f9d6a44049f007d29fca832f8a4bf [diff]
[RegAllocFast] Ensure live-in vregs get reloaded after INLINEASM_BR spills

We have already ensured in 9cec2b246e719533723562950e56c292fe5dd5ad
that `INLINEASM_BR` output operands get spilled onto the stack, both
in the fallthrough path and in the indirect targets. Since reloads of
live-ins values into physical registers contextually happen after all
MIR instructions (and ops) have been visited, make sure such loads are
placed at the start of the block, but after prologues or `INLINEASM_BR`
spills, as otherwise this may cause stale values to be read from the
stack.

Fixes: #74483, #110251.
2 files changed
tree: 0cdf009d1a1a01c2c25b058e9768fd15c786a4f3
  1. .ci/
  2. .github/
  3. bolt/
  4. clang/
  5. clang-tools-extra/
  6. cmake/
  7. compiler-rt/
  8. cross-project-tests/
  9. flang/
  10. flang-rt/
  11. libc/
  12. libclc/
  13. libcxx/
  14. libcxxabi/
  15. libunwind/
  16. lld/
  17. lldb/
  18. llvm/
  19. llvm-libgcc/
  20. mlir/
  21. offload/
  22. openmp/
  23. polly/
  24. pstl/
  25. runtimes/
  26. third-party/
  27. utils/
  28. .clang-format
  29. .clang-tidy
  30. .git-blame-ignore-revs
  31. .gitattributes
  32. .gitignore
  33. .mailmap
  34. CODE_OF_CONDUCT.md
  35. CONTRIBUTING.md
  36. LICENSE.TXT
  37. pyproject.toml
  38. README.md
  39. SECURITY.md
README.md

The LLVM Compiler Infrastructure

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Welcome to the LLVM project!

This repository contains the source code for LLVM, a toolkit for the construction of highly optimized compilers, optimizers, and run-time environments.

The LLVM project has multiple components. The core of the project is itself called “LLVM”. This contains all of the tools, libraries, and header files needed to process intermediate representations and convert them into object files. Tools include an assembler, disassembler, bitcode analyzer, and bitcode optimizer.

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