[all-commits] [llvm/llvm-project] b58677: [LangRef][ConstantTime] Add documentation for llvm...

[Akshay K via All-commits]

  Branch: refs/heads/users/wizardengineer/ct-select-core
  Home:   https://github.com/llvm/llvm-project
  Commit: b58677abfb67e9711a2f9a543f2b47ff438f77bb
      https://github.com/llvm/llvm-project/commit/b58677abfb67e9711a2f9a543f2b47ff438f77bb
  Author: Akshay K <iit.akshay at gmail.com>
  Date:   2026-02-13 (Fri, 13 Feb 2026)

  Changed paths:
    M llvm/docs/LangRef.rst
    M llvm/test/CodeGen/X86/ctselect.ll

  Log Message:
  -----------
  [LangRef][ConstantTime] Add documentation for llvm.ct.select.* constant-time intrinsics (#181042)

This PR introduces and documents the llvm.ct.select.* constant-time
intrinsics, providing timing-independent selection operations for
security-sensitive code. The LangRef is updated with syntax, semantics,
supported types, and usage guidance.

Additionally, test coverage is extended with a new <8 x float> variant
(llvm.ct.select.v8f32) and corresponding X86 codegen tests to ensure
correct lowering on both x64 and x32 targets.



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