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Label Filter Problems with gcc-7.1 on mac

See original GitHub issue

For the small program

int main()
{}

the current release branch with all filters turned on gives the following verbose output with gcc-7.1 on mac (confirmed on different macOS versions)

_main:
        xorl    %eax, %eax
        ret
EH_frame1:
        .long L$set$4
        .long   0
        .byte   0x1
        .ascii "zR\0"
        .byte   0x1
        .byte   0x78
        .byte   0x10
        .byte   0x1
        .byte   0x10
        .byte   0xc
        .byte   0x7
        .byte   0x8
        .byte   0x90
        .byte   0x1
        .long L$set$5
        .long   LASFDE3-EH_frame1
        .quad   LFB0-.
        .quad L$set$6
        .byte   0

Issue Analytics

State:
Created 6 years ago
Comments:8 (4 by maintainers)

Top GitHub Comments

1reaction

Wentzellcommented, Feb 20, 2018

Hey @mattgodbolt,

Indeed this is fixed now on master!

For the code

int main() {}

g++ 7.3 now gives

_main:
        xorl    %eax, %eax
        ret

while with clang 5.0.1 I get

_main:                                  ## @main
        pushq   %rbp
        movq    %rsp, %rbp
        xorl    %eax, %eax
        popq    %rbp
        retq

on Mac OS High Sierra.

0reactions

mattgodboltcommented, Feb 20, 2018

Hooray! Thanks for checking 😁