Why gcc 4.1 + gcov reports 100% branch coverage and newer (4.4, 4.6, 4.8) reports 50% for "p = new class;" line?

When gcc 4.1 (using gcov) next line:

p = new Class;

is reported as 100% branch coverage <-- THIS IS OK for me.

Why using gcc 4.4 and higher same line is reportted as:

[+ -] p = new Class; (50% branch coverage)... <-- THIS IS a problem for covering 100% !!!

Can I set any extra options to newer gcc versions in order to report same branch coverage as gcc 4.1 for single lines as "p = new Class;".

Thanks in advance.