float foo() {
    volatile float f = 1.0;
    return cos(f);
}

0000000000002864 <foo>:
    2864:   f3 0f 1e fa             endbr64
    2868:   55                      push   %rbp
    2869:   48 89 e5                mov    %rsp,%rbp
    286c:   48 83 ec 10             sub    $0x10,%rsp
    2870:   f3 0f 10 05 9c 67 00    movss  0x679c(%rip),%xmm0        # 9014 <_data+0x14>
    2877:   00
    2878:   f3 0f 11 45 fc          movss  %xmm0,-0x4(%rbp)
    287d:   f3 0f 10 45 fc          movss  -0x4(%rbp),%xmm0
    2882:   f3 0f 5a c0             cvtss2sd %xmm0,%xmm0
    2886:   b8 01 00 00 00          mov    $0x1,%eax
    288b:   e8 30 50 00 00          callq  78c0 <_etext+0x20>
    2890:   f3 0f 2a c0             cvtsi2ss %eax,%xmm0
    2894:   c9                      leaveq
    2895:   c3                      retq