[LLVMbugs] [Bug 10223] New: Segmentation fault with inline assembly

bugzilla-daemon at llvm.org bugzilla-daemon at llvm.org
Wed Jun 29 04:31:43 PDT 2011


           Summary: Segmentation fault with inline assembly
           Product: clang
           Version: 2.9
          Platform: PC
        OS/Version: Linux
            Status: NEW
          Severity: normal
          Priority: P
         Component: -New Bugs
        AssignedTo: unassignedclangbugs at nondot.org
        ReportedBy: sas at cd80.net
                CC: llvmbugs at cs.uiuc.edu

Created an attachment (id=6799)
 --> (http://llvm.org/bugs/attachment.cgi?id=6799)
Stack trace of clang

The following C source makes clang segfault where it should just display an
error message and quit. Note that the second operand of the `mov` instruction
is %o instead of %0.

int main(void)
  void *esp;
  __asm__ volatile ("mov %%esp, %o" : "=r"(esp) : : );
  return 0;

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