JIT compilation not equals NaN fix

[kitaisreal]

Changelog category (leave one):

• Bug Fix (user-visible misbehavior in an official stable release)

Changelog entry (a user-readable short description of the changes that goes to CHANGELOG.md):

Fix notEquals function JIT compilation when one of the arguments is NaN. Closes #50039.

[robot-ch-test-poll4]

This is an automated comment for commit 01c01bf with description of existing statuses. It's updated for the latest CI running
The full report is available here
The overall status of the commit is 🔴 failure

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[kitaisreal]

To check what LLVM emits:

bool equals(double f1, double f2) {
    return f1 == f2;
}

bool notEquals(double f1, double f2) {
    return f1 != f2;
}

bool less(double f1, double f2) {
    return f1 < f2;
}

bool lessOrEquals(double f1, double f2) {
    return f1 <= f2;
}

bool greater(double f1, double f2) {
    return f1 > f2;
}

bool greaterOrEquals(double f1, double f2) {
    return f1 >= f2;
}

int main(int agrc, char ** argv) {
    return 0;
}

Emit IR:

/usr/bin/clang++-15 -S -emit-llvm -O2 test_nan.cpp -o test_nan.ll

Result:

; Function Attrs: mustprogress nofree norecurse nosync nounwind readnone willreturn uwtable
define dso_local noundef zeroext i1 @_Z6equalsdd(double noundef %0, double noundef %1) local_unnamed_addr #0 {
  %3 = fcmp oeq double %0, %1
  ret i1 %3
}

; Function Attrs: mustprogress nofree norecurse nosync nounwind readnone willreturn uwtable
define dso_local noundef zeroext i1 @_Z9notEqualsdd(double noundef %0, double noundef %1) local_unnamed_addr #0 {
  %3 = fcmp une double %0, %1
  ret i1 %3
}

; Function Attrs: mustprogress nofree norecurse nosync nounwind readnone willreturn uwtable
define dso_local noundef zeroext i1 @_Z4lessdd(double noundef %0, double noundef %1) local_unnamed_addr #0 {
  %3 = fcmp olt double %0, %1
  ret i1 %3
}

; Function Attrs: mustprogress nofree norecurse nosync nounwind readnone willreturn uwtable
define dso_local noundef zeroext i1 @_Z12lessOrEqualsdd(double noundef %0, double noundef %1) local_unnamed_addr #0 {
  %3 = fcmp ole double %0, %1
  ret i1 %3
}

; Function Attrs: mustprogress nofree norecurse nosync nounwind readnone willreturn uwtable
define dso_local noundef zeroext i1 @_Z7greaterdd(double noundef %0, double noundef %1) local_unnamed_addr #0 {
  %3 = fcmp ogt double %0, %1
  ret i1 %3
}

; Function Attrs: mustprogress nofree norecurse nosync nounwind readnone willreturn uwtable
define dso_local noundef zeroext i1 @_Z15greaterOrEqualsdd(double noundef %0, double noundef %1) local_unnamed_addr #0 {
  %3 = fcmp oge double %0, %1
  ret i1 %3
}

; Function Attrs: mustprogress nofree norecurse nosync nounwind readnone willreturn uwtable
define dso_local noundef i32 @main(i32 noundef %0, ptr nocapture noundef readnone %1) local_unnamed_addr #0 {
  ret i32 0
}