[InferAttrs] Set attributes for remainder (#99521)

Fixes one of the issues in
#99497.

Author: dtcxzyw

llvm/lib/Transforms/Utils/BuildLibCalls.cpp

@@ -1195,6 +1195,9 @@ bool llvm::inferNonMandatoryLibFuncAttrs(Function &F,
   case LibFunc_pow:
   case LibFunc_powf:
   case LibFunc_powl:
+  case LibFunc_remainder:
+  case LibFunc_remainderf:
+  case LibFunc_remainderl:
   case LibFunc_rint:
   case LibFunc_rintf:
   case LibFunc_rintl:

llvm/test/Transforms/InferFunctionAttrs/annotate.ll

@@ -800,6 +800,15 @@ declare ptr @vec_realloc(ptr, i64)
 ; CHECK: declare noundef ptr @realpath(ptr nocapture noundef readonly, ptr noundef) [[NOFREE_NOUNWIND]]
 declare ptr @realpath(ptr, ptr)
 
+; CHECK: declare double @remainder(double, double) [[NOFREE_NOUNWIND_WILLRETURN_WRITEONLY]]
+declare double @remainder(double, double)
+
+; CHECK: declare float @remainderf(float, float) [[NOFREE_NOUNWIND_WILLRETURN_WRITEONLY]]
+declare float @remainderf(float, float)
+
+; CHECK: declare x86_fp80 @remainderl(x86_fp80, x86_fp80) [[NOFREE_NOUNWIND_WILLRETURN_WRITEONLY]]
+declare x86_fp80 @remainderl(x86_fp80, x86_fp80)
+
 ; CHECK: declare noundef i32 @remove(ptr nocapture noundef readonly) [[NOFREE_NOUNWIND]]
 declare i32 @remove(ptr)