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fix(libc): apply range handling to llroundf 

The original fix predates llroundf, which was added in #2933. Use the same guest range and exception behavior for the fourth wrapper and include it in the edge-case checks.
This commit is contained in:
MarcZX100 2026-10-10 21:32:08 +00:00
parent 03dde075c9
commit fcc3145abf
2 changed files with 9 additions and 7 deletions
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2
core/libs/prx/libc/src/Math.cpp
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@ -52,7 +52,7 @@ float APS5_VABI frexpf_nid_postfix(float x, int* exponent) { return std::frexp(x
std::int64_t APS5_VABI lround_nid_postfix(double x) { return RoundToInt64(x); }
std::int64_t APS5_VABI lroundf_nid_postfix(float x) { return RoundToInt64(x); }
std::int64_t APS5_VABI llround_nid_postfix(double x) { return RoundToInt64(x); }
std::int64_t APS5_VABI llroundf_nid_postfix(float x) { return std::llround(x); }
std::int64_t APS5_VABI llroundf_nid_postfix(float x) { return RoundToInt64(x); }
int APS5_VABI __isfinitef_nid_postfix(float x) { return std::isfinite(x) ? 1 : 0; }
int APS5_VABI __isnormal_nid_postfix(double x) { return std::isnormal(x) ? 1 : 0; }
int APS5_VABI __isnormalf_nid_postfix(float x) { return std::isnormal(x) ? 1 : 0; }

14
core/libs/tests/GuestMath.cpp
View File

@ -273,12 +273,14 @@ static void CheckDoubleRounding(double value, std::int64_t expected, bool invali
}
static void CheckFloatRounding(float value, std::int64_t expected, bool invalid) {
std::feclearexcept(FE_ALL_EXCEPT);
errno = 12345;
const std::int64_t result = lroundf_nid_postfix(value);
Require(result == expected);
Require((std::fetestexcept(FE_INVALID) != 0) == invalid);
Require(errno == 12345);
for (const bool useLlround : {false, true}) {
std::feclearexcept(FE_ALL_EXCEPT);
errno = 12345;
const std::int64_t result = useLlround ? llroundf_nid_postfix(value) : lroundf_nid_postfix(value);
Require(result == expected);
Require((std::fetestexcept(FE_INVALID) != 0) == invalid);
Require(errno == 12345);
}
}
int main() {