[LLVMbugs] [Bug 9126] New: __float128 crashes the compiler / optimizer

[bugzilla-daemon at llvm.org]

http://llvm.org/bugs/show_bug.cgi?id=9126

           Summary: __float128 crashes the compiler / optimizer
           Product: dragonegg
           Version: 2.8
          Platform: PC
        OS/Version: Linux
            Status: NEW
          Severity: normal
          Priority: P
         Component: New Bugs
        AssignedTo: baldrick at free.fr
        ReportedBy: larrybartholdi at yahoo.com
                CC: llvmbugs at cs.uiuc.edu


I've heard about llvm only 10 minutes ago, and tried something on the website's
"online compiler" 5 minutes ago:

#include <stdio.h>
#include <stdlib.h>

__float128 factorial(__float128 X) {
  if (X == 0.0) return 1.0;
  return X*factorial(X-1);
}

int main(int argc, char **argv) {
  printf("%LLg\n", factorial(atoi(argv[1])));
}

(I had initially tried float128 and _float128 types, which don't seem to be
recognized at all).

This crashes the compiler / optimizer:

/tmp/webcompile/_22203_0.c: In function 'factorial':
/tmp/webcompile/_22203_0.c:4: internal compiler error: Segmentation fault

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