[all-commits] [llvm/llvm-project] 0d93b0: [RISCV] Don't crash if parseNormalizedArchString e...

[Craig Topper via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 0d93b01c3b1e2e543acec3f36db639b8b7b0b20d
      https://github.com/llvm/llvm-project/commit/0d93b01c3b1e2e543acec3f36db639b8b7b0b20d
  Author: Craig Topper <craig.topper at sifive.com>
  Date:   2024-05-07 (Tue, 07 May 2024)

  Changed paths:
    M llvm/lib/Support/RISCVISAUtils.cpp
    M llvm/unittests/TargetParser/RISCVISAInfoTest.cpp

  Log Message:
  -----------
  [RISCV] Don't crash if parseNormalizedArchString encounters a multi-letter extension with an unknown prefix. (#91398)

The sorting code previously asserted if a prefix was multiple letters,
but didn't start with s, x, or z.

Replace the assert with an explicit check and sort the multi-letter
extension after the known multi-letter prefixes.



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