[all-commits] [llvm/llvm-project] ae3b59: [libc] Use MPFR for strtofloat fuzzing

[michaelrj-google via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: ae3b59e62398e8dc86dec647be58c5ee032447c1
      https://github.com/llvm/llvm-project/commit/ae3b59e62398e8dc86dec647be58c5ee032447c1
  Author: Michael Jones <michaelrj at google.com>
  Date:   2023-05-22 (Mon, 22 May 2023)

  Changed paths:
    M libc/cmake/modules/LLVMLibCTestRules.cmake
    M libc/fuzzing/stdlib/CMakeLists.txt
    M libc/fuzzing/stdlib/atof_differential_fuzz.cpp
    M libc/fuzzing/stdlib/strtofloat_fuzz.cpp
    M libc/src/__support/str_to_float.h
    M libc/test/src/stdlib/strtod_test.cpp
    M libc/test/src/stdlib/strtold_test.cpp
    M libc/utils/MPFRWrapper/CMakeLists.txt
    M libc/utils/MPFRWrapper/MPFRUtils.cpp
    A libc/utils/MPFRWrapper/mpfr_inc.h
    M utils/bazel/llvm-project-overlay/libc/utils/MPFRWrapper/BUILD.bazel

  Log Message:
  -----------
  [libc] Use MPFR for strtofloat fuzzing

The previous string to float tests didn't check correctness, but due to
the atof differential test proving unreliable the strtofloat fuzz test
has been changed to use MPFR for correctness checking. Some minor bugs
have been found and fixed as well.

Reviewed By: lntue

Differential Revision: https://reviews.llvm.org/D150905