Generated assembly

popcnt.asm

mov    %r11d,%r8d
shr    %r8d
and    $0x55555555,%r8d
sub    %r8d,%r11d         ;*isub
                          ; - java.lang.Integer::bitCount@7 (line 1143)
                          ; - PopCntTest::main@9 (line 9)
mov    %r11d,%r8d
shr    $0x2,%r8d
and    $0x33333333,%r11d
and    $0x33333333,%r8d
add    %r8d,%r11d         ;*iadd
                          ; - java.lang.Integer::bitCount@19 (line 1144)
                          ; - PopCntTest::main@9 (line 9)
mov    %r11d,%r8d
shr    $0x4,%r8d
add    %r11d,%r8d         ;*iadd
                          ; - java.lang.Integer::bitCount@25 (line 1145)
                          ; - PopCntTest::main@9 (line 9)
mov    %r8d,%r10d
shr    $0x8,%r10d
and    $0xf0f0f0f,%r8d
and    $0xf0f0f,%r10d
add    %r10d,%r8d         ;*iadd
                          ; - java.lang.Integer::bitCount@35 (line 1146)
                          ; - PopCntTest::main@9 (line 9)