Bug 143323 - vex amd64->IR: unhandled instruction bytes: 0xF 0xAE 0x8D 0x50 (fxrstor)
Summary: vex amd64->IR: unhandled instruction bytes: 0xF 0xAE 0x8D 0x50 (fxrstor)
Status: RESOLVED DUPLICATE of bug 194402
Alias: None
Product: valgrind
Classification: Developer tools
Component: vex (show other bugs)
Version: unspecified
Platform: Compiled Sources Linux
: NOR crash
Target Milestone: ---
Assignee: Julian Seward
URL:
Keywords:
Depends on:
Blocks: 253451
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Reported: 2007-03-22 06:13 UTC by Francesco
Modified: 2011-08-11 09:34 UTC (History)
2 users (show)

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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 ***