[libc-commits] [libc] Revert "[libc] exp fuzz tests" (PR #148665)

[via libc-commits]

llvmbot wrote:


<!--LLVM PR SUMMARY COMMENT-->

@llvm/pr-subscribers-libc

Author: None (sribee8)

<details>
<summary>Changes</summary>

Reverts llvm/llvm-project#<!-- -->148086
This broke the build and I'm currently figuring out the problem

---
Full diff: https://github.com/llvm/llvm-project/pull/148665.diff


5 Files Affected:

- (modified) libc/fuzzing/math/CMakeLists.txt (-36) 
- (removed) libc/fuzzing/math/exp10_fuzz.cpp (-38) 
- (removed) libc/fuzzing/math/exp2_fuzz.cpp (-38) 
- (removed) libc/fuzzing/math/exp_fuzz.cpp (-38) 
- (removed) libc/fuzzing/math/expm1_fuzz.cpp (-38) 


``````````diff
diff --git a/libc/fuzzing/math/CMakeLists.txt b/libc/fuzzing/math/CMakeLists.txt
index bf2be5c0b3cea..e3c29651917fc 100644
--- a/libc/fuzzing/math/CMakeLists.txt
+++ b/libc/fuzzing/math/CMakeLists.txt
@@ -62,42 +62,6 @@ add_libc_fuzzer(
     libc.src.math.nextafterl
 )
 
-add_libc_fuzzer(
-  exp_fuzz
-  NEED_MPFR
-  SRCS
-    exp_fuzz.cpp
-  DEPENDS
-    libc.src.math.exp
-)
-
-add_libc_fuzzer(
-  exp10_fuzz
-  NEED_MPFR
-  SRCS
-    exp10_fuzz.cpp
-  DEPENDS
-    libc.src.math.exp10
-)
-
-add_libc_fuzzer(
-  exp2_fuzz
-  NEED_MPFR
-  SRCS
-    exp2_fuzz.cpp
-  DEPENDS
-    libc.src.math.exp2
-)
-
-add_libc_fuzzer(
-  expm1_fuzz
-  NEED_MPFR
-  SRCS
-    expm1_fuzz.cpp
-  DEPENDS
-    libc.src.math.expm1
-)
-
 add_libc_fuzzer(
   asin_fuzz
   NEED_MPFR
diff --git a/libc/fuzzing/math/exp10_fuzz.cpp b/libc/fuzzing/math/exp10_fuzz.cpp
deleted file mode 100644
index 2baef03a264a4..0000000000000
--- a/libc/fuzzing/math/exp10_fuzz.cpp
+++ /dev/null
@@ -1,38 +0,0 @@
-//===-- exp10_fuzz.cpp ----------------------------------------------------===//
-//
-// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
-// See https://llvm.org/LICENSE.txt for license information.
-// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
-//
-//===----------------------------------------------------------------------===//
-///
-/// Fuzzing test for llvm-libc exp10 implementation.
-///
-//===----------------------------------------------------------------------===//
-
-#include "src/math/exp10.h"
-#include "utils/MPFRWrapper/mpfr_inc.h"
-#include <math.h>
-
-extern "C" int LLVMFuzzerTestOneInput(double x) {
-  // remove NaN and inf
-  if (isnan(x) || isinf(x))
-    return 0;
-  // signed zeros already tested in unit tests
-  if (signbit(x) && x == 0.0)
-    return 0;
-  mpfr_t input;
-  mpfr_init2(input, 53);
-  mpfr_set_d(input, x, MPFR_RNDN);
-  int output = mpfr_exp10(input, input, MPFR_RNDN);
-  mpfr_subnormalize(input, output, MPFR_RNDN);
-  double to_compare = mpfr_get_d(input, MPFR_RNDN);
-
-  double result = LIBC_NAMESPACE::exp10(x);
-
-  if (result != to_compare)
-    __builtin_trap();
-
-  mpfr_clear(input);
-  return 0;
-}
diff --git a/libc/fuzzing/math/exp2_fuzz.cpp b/libc/fuzzing/math/exp2_fuzz.cpp
deleted file mode 100644
index 8a2959047a6ca..0000000000000
--- a/libc/fuzzing/math/exp2_fuzz.cpp
+++ /dev/null
@@ -1,38 +0,0 @@
-//===-- exp2_fuzz.cpp -----------------------------------------------------===//
-//
-// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
-// See https://llvm.org/LICENSE.txt for license information.
-// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
-//
-//===----------------------------------------------------------------------===//
-///
-/// Fuzzing test for llvm-libc exp2 implementation.
-///
-//===----------------------------------------------------------------------===//
-
-#include "src/math/exp2.h"
-#include "utils/MPFRWrapper/mpfr_inc.h"
-#include <math.h>
-
-extern "C" int LLVMFuzzerTestOneInput(double x) {
-  // remove NaN and inf
-  if (isnan(x) || isinf(x))
-    return 0;
-  // signed zeros already tested in unit tests
-  if (signbit(x) && x == 0.0)
-    return 0;
-  mpfr_t input;
-  mpfr_init2(input, 53);
-  mpfr_set_d(input, x, MPFR_RNDN);
-  int output = mpfr_exp2(input, input, MPFR_RNDN);
-  mpfr_subnormalize(input, output, MPFR_RNDN);
-  double to_compare = mpfr_get_d(input, MPFR_RNDN);
-
-  double result = LIBC_NAMESPACE::exp2(x);
-
-  if (result != to_compare)
-    __builtin_trap();
-
-  mpfr_clear(input);
-  return 0;
-}
diff --git a/libc/fuzzing/math/exp_fuzz.cpp b/libc/fuzzing/math/exp_fuzz.cpp
deleted file mode 100644
index 97bc12dfa64c9..0000000000000
--- a/libc/fuzzing/math/exp_fuzz.cpp
+++ /dev/null
@@ -1,38 +0,0 @@
-//===-- exp_fuzz.cpp ------------------------------------------------------===//
-//
-// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
-// See https://llvm.org/LICENSE.txt for license information.
-// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
-//
-//===----------------------------------------------------------------------===//
-///
-/// Fuzzing test for llvm-libc exp implementation.
-///
-//===----------------------------------------------------------------------===//
-
-#include "src/math/exp.h"
-#include "utils/MPFRWrapper/mpfr_inc.h"
-#include <math.h>
-
-extern "C" int LLVMFuzzerTestOneInput(double x) {
-  // remove NaN and inf
-  if (isnan(x) || isinf(x))
-    return 0;
-  // signed zeros already tested in unit tests
-  if (signbit(x) && x == 0.0)
-    return 0;
-  mpfr_t input;
-  mpfr_init2(input, 53);
-  mpfr_set_d(input, x, MPFR_RNDN);
-  int output = mpfr_exp(input, input, MPFR_RNDN);
-  mpfr_subnormalize(input, output, MPFR_RNDN);
-  double to_compare = mpfr_get_d(input, MPFR_RNDN);
-
-  double result = LIBC_NAMESPACE::exp(x);
-
-  if (result != to_compare)
-    __builtin_trap();
-
-  mpfr_clear(input);
-  return 0;
-}
diff --git a/libc/fuzzing/math/expm1_fuzz.cpp b/libc/fuzzing/math/expm1_fuzz.cpp
deleted file mode 100644
index db507bb02b1d7..0000000000000
--- a/libc/fuzzing/math/expm1_fuzz.cpp
+++ /dev/null
@@ -1,38 +0,0 @@
-//===-- expm1_fuzz.cpp ----------------------------------------------------===//
-//
-// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
-// See https://llvm.org/LICENSE.txt for license information.
-// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
-//
-//===----------------------------------------------------------------------===//
-///
-/// Fuzzing test for llvm-libc expm1 implementation.
-///
-//===----------------------------------------------------------------------===//
-
-#include "src/math/expm1.h"
-#include "utils/MPFRWrapper/mpfr_inc.h"
-#include <math.h>
-
-extern "C" int LLVMFuzzerTestOneInput(double x) {
-  // remove NaN and inf
-  if (isnan(x) || isinf(x))
-    return 0;
-  // signed zeros already tested in unit tests
-  if (signbit(x) && x == 0.0)
-    return 0;
-  mpfr_t input;
-  mpfr_init2(input, 53);
-  mpfr_set_d(input, x, MPFR_RNDN);
-  int output = mpfr_expm1(input, input, MPFR_RNDN);
-  mpfr_subnormalize(input, output, MPFR_RNDN);
-  double to_compare = mpfr_get_d(input, MPFR_RNDN);
-
-  double result = LIBC_NAMESPACE::expm1(x);
-
-  if (result != to_compare)
-    __builtin_trap();
-
-  mpfr_clear(input);
-  return 0;
-}

``````````

</details>


https://github.com/llvm/llvm-project/pull/148665