[Bug libstdc++/78717] no definition of string::find when lowered to gimple

[hiraditya at msn dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78717

--- Comment #3 from AK <hiraditya at msn dot com> ---
Even with a high inline limit, string::find didn't inline.

g++-11.0.2 -O3  -finline-limit=100000  -S -o a.s s.cpp

cat a.s

```
_Z3fooRKNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEES6_i:
.LFB1240:
        .cfi_startproc
        endbr64
        pushq   %rbx
        .cfi_def_cfa_offset 16
        .cfi_offset 3, -16
        movq    8(%rsi), %rcx
        movslq  %edx, %rbx
        xorl    %edx, %edx
        movq    (%rsi), %rsi
        call   
_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE4findEPKcmm@PLT
        cmpq    %rax, %rbx
        popq    %rbx
        .cfi_def_cfa_offset 8
        sete    %al
        movzbl  %al, %eax
        ret

```