[llvm-bugs] [Bug 48642] New: Crash with LTO and __attribute__((cpu_dispatch(generic, skylake)))

[via llvm-bugs]

https://bugs.llvm.org/show_bug.cgi?id=48642

            Bug ID: 48642
           Summary: Crash with LTO and
                    __attribute__((cpu_dispatch(generic, skylake)))
           Product: new-bugs
           Version: 11.0
          Hardware: PC
                OS: Linux
            Status: NEW
          Severity: enhancement
          Priority: P
         Component: new bugs
          Assignee: unassignedbugs at nondot.org
          Reporter: jeromerobert at gmx.com
                CC: htmldeveloper at gmail.com, llvm-bugs at lists.llvm.org

Created attachment 24332
  --> https://bugs.llvm.org/attachment.cgi?id=24332&action=edit
Stack dump

source code:

__attribute__((cpu_dispatch(generic, skylake)))
void func(double * restrict x, double* restrict y, double* restrict z);

__attribute__((cpu_specific(generic, skylake)))
void func(double * restrict x, double* restrict y, double* restrict z) {
  for(int i = 0; i < 8; i++) {
    z[i] += x[i] + y[i];
  }
}

command line:

clang -flto bug_cpu_dispatch_lto.c

See stack dump attached.

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