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[libc] Enable exp10m1f on RISC-V (#138768)

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Previously, the test failed due to isnan() and isinf() not being
defined.

This patch follows other tests in the same directory and calls isnan and
isinf from the FBits class.

---------

Co-authored-by: OverMighty <its.overmighty@gmail.com>
This commit is contained in:
Mikhail R. Gadelha
2025-05-07 13:22:09 -03:00
committed by GitHub
parent 8d9f5160b4
commit 52e5889d0e
2 changed files with 3 additions and 3 deletions
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2
libc/config/linux/riscv/entrypoints.txt
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@@ -451,7 +451,7 @@ set(TARGET_LIBM_ENTRYPOINTS
libc.src.math.exp
libc.src.math.exp10
libc.src.math.exp10f
# libc.src.math.exp10m1f
libc.src.math.exp10m1f
libc.src.math.exp2
libc.src.math.exp2f
libc.src.math.exp2m1f

4
libc/test/src/math/exp10m1f_test.cpp
View File

@@ -80,7 +80,7 @@ TEST_F(LlvmLibcExp10m1fTest, InFloatRange) {
constexpr uint32_t STEP = UINT32_MAX / COUNT;
for (uint32_t i = 0, v = 0; i <= COUNT; ++i, v += STEP) {
float x = FPBits(v).get_val();
if (isnan(x) || isinf(x))
if (FPBits(v).is_inf_or_nan())
continue;
LIBC_NAMESPACE::libc_errno = 0;
float result = LIBC_NAMESPACE::exp10m1f(x);
@@ -89,7 +89,7 @@ TEST_F(LlvmLibcExp10m1fTest, InFloatRange) {
// in the single-precision floating point range, then ignore comparing with
// MPFR result as MPFR can still produce valid results because of its
// wider precision.
if (isnan(result) || isinf(result) || LIBC_NAMESPACE::libc_errno != 0)
if (FPBits(result).is_inf_or_nan() || LIBC_NAMESPACE::libc_errno != 0)
continue;
ASSERT_MPFR_MATCH_ALL_ROUNDING(mpfr::Operation::Exp10m1, x,
LIBC_NAMESPACE::exp10m1f(x), 0.5);