[Bug target/93492] New: Broken code with -fpatchable-function-entry and -fcf-protection=full

[nsz at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=93492

            Bug ID: 93492
           Summary: Broken code with -fpatchable-function-entry and
                    -fcf-protection=full
           Product: gcc
           Version: 10.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: target
          Assignee: unassigned at gcc dot gnu.org
          Reporter: nsz at gcc dot gnu.org
  Target Milestone: ---

x86 version of bug 92424

endbr64 is not right at the function label with
-fcf-protection=full -fpatchable-function-entry=1

void f(){} is compiled to

f:
        .section        __patchable_function_entries,"aw",@progbits
        .quad   .LPFE1
        .text
.LPFE1:
        nop
.LFB0:
        .cfi_startproc
        endbr64
        ret
        .cfi_endproc
.LFE0:
        .size   f, .-f