[all-commits] [llvm/llvm-project] b40c53: [clang] Add support for -fcx-limited-range, #pragm...

[Zahira Ammarguellat via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: b40c53465650456bfd364c123b1001e025353a33
      https://github.com/llvm/llvm-project/commit/b40c53465650456bfd364c123b1001e025353a33
  Author: Zahira Ammarguellat <zahira.ammarguellat at intel.com>
  Date:   2023-12-11 (Mon, 11 Dec 2023)

  Changed paths:
    M clang/docs/ReleaseNotes.rst
    M clang/docs/UsersManual.rst
    M clang/include/clang/Basic/FPOptions.def
    M clang/include/clang/Basic/Features.def
    M clang/include/clang/Basic/LangOptions.def
    M clang/include/clang/Basic/LangOptions.h
    M clang/include/clang/Basic/TokenKinds.def
    M clang/include/clang/Driver/Options.td
    M clang/include/clang/Parse/Parser.h
    M clang/include/clang/Sema/Sema.h
    M clang/lib/CodeGen/CGExprComplex.cpp
    M clang/lib/Driver/ToolChains/Clang.cpp
    M clang/lib/Parse/ParsePragma.cpp
    M clang/lib/Parse/ParseStmt.cpp
    M clang/lib/Parse/Parser.cpp
    M clang/lib/Sema/SemaAttr.cpp
    M clang/test/CodeGen/complex-math.c
    A clang/test/CodeGen/cx-complex-range.c
    A clang/test/CodeGen/pragma-cx-limited-range.c
    A clang/test/Driver/range.c
    M clang/test/Preprocessor/pragma_unknown.c

  Log Message:
  -----------
  [clang] Add support for -fcx-limited-range, #pragma CX_LIMITED_RANGE and -fcx-fortran-rules.  (#70244)

This patch adds the #pragma CX_LIMITED_RANGE defined in the C
specification.
It also adds the options -f[no]cx-limited-range and
-f[no]cx-fortran-rules.
-fcx-limited-range enables algebraic formulas for complex multiplication
and division. This option is enabled with -ffast-math.
-fcx-fortran-rules enables algebraic formulas for complex multiplication
and enables Smith’s algorithm for complex division (SMITH, R. L.
Algorithm 116: Complex division. Commun. ACM 5, 8 (1962)).

---------

Signed-off-by: Med Ismail Bennani <ismail at bennani.ma>
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