Bug 143323

Summary: vex amd64->IR: unhandled instruction bytes: 0xF 0xAE 0x8D 0x50 (fxrstor)
Product: [Developer tools] valgrind Reporter: Francesco <francesco.19745>
Component: vexAssignee: Julian Seward <jseward>
Status: RESOLVED DUPLICATE    
Severity: crash CC: njn, tom
Priority: NOR    
Version: unspecified   
Target Milestone: ---   
Platform: Compiled Sources   
OS: Linux   
Latest Commit: Version Fixed In:
Sentry Crash Report:
Bug Depends on:    
Bug Blocks: 253451    

Description Francesco 2007-03-22 06:13:52 UTC 
Version:            (using KDE Devel)
Installed from:    Compiled sources
Compiler:          gcc 3.4.0 
OS:                Linux

This is the companion of bug 126389, but for amd64 instead of x86.  Some C code that tickles the bug is included below.

int main() {
  int loc[1000];
  int i;

  for (i = 0; i < 1000; i++)
    loc[i] = 0;

  // vex amd64->IR: unhandled instruction bytes: 0xF 0xAE 0x8D 0x50
  asm("fxrstor %0\n" : :"m"(loc));
}
Comment 1 Tom Hughes 2011-08-11 09:34:09 UTC 

*** This bug has been marked as a duplicate of bug 194402 ***