[LLVMbugs] [Bug 3649] New: stack is not saved/restored correctly with multiple VLAs

[bugzilla-daemon at cs.uiuc.edu]

http://llvm.org/bugs/show_bug.cgi?id=3649

           Summary: stack is not saved/restored correctly with multiple VLAs
           Product: clang
           Version: unspecified
          Platform: PC
        OS/Version: Linux
            Status: NEW
          Severity: normal
          Priority: P2
         Component: LLVM Codegen
        AssignedTo: unassignedclangbugs at nondot.org
        ReportedBy: daniel at zuster.org
                CC: llvmbugs at cs.uiuc.edu, andersca at mac.com


The printed addresses below should be constant:
--
ddunbar at frank:tmp$ cat t.c
#include <stdio.h>

int f0(int n) {
  int arr[n];
  for (unsigned i=0; i<n; ++i) {
    int arr[n << 10];
    printf("%p\n", arr);
  }
  return 0;
}

int main() {
  f0(10);
  return 0;
}

ddunbar at frank:tmp$ xcc t.c && ./a.out
0xbfe67788
0xbfe5d788
0xbfe53788
0xbfe49788
0xbfe3f788
0xbfe35788
0xbfe2b788
0xbfe21788
0xbfe17788
0xbfe0d788
--


-- 
Configure bugmail: http://llvm.org/bugs/userprefs.cgi?tab=email
------- You are receiving this mail because: -------
You are on the CC list for the bug.