[Bug 38076] New: lldb and gdb compute different values for expressions

Subprojects LLDB
1

Bug ID 38076
Summary lldb and gdb compute different values for expressions
Product lldb
Version unspecified
Hardware PC
OS Linux
Status NEW
Severity enhancement
Priority P
Component All Bugs
Assignee lldb-dev@lists.llvm.org
Reporter tianxiao.gu@gmail.com
CC chengniansun@gmail.com, davide@freebsd.org, llvm-bugs@lists.llvm.org, su@cs.ucdavis.edu

Created attachment 20530 [details]
reproducing scripts

See attached zip file to reproduce the inconsistency.

Affected version:

lldb version 7.0.0 ([http://llvm.org/svn/llvm-project/lldb/trunk](http://llvm.org/svn/llvm-project/lldb/trunk) revision
336302)
  clang revision 336302
  llvm revision 336302

~~~test.c
typedef unsigned int uint32_t;
struct S0 {
  signed f2;
};
static g_463 = 0x1561983AL;
void func_1(void)
{
  struct S0 l_19;
  l_19.f2 = 419;
  uint32_t l_4037 = 4294967295UL;
  l_19.f2 = g_463; // break here and evaluate ((l_4037 % (-(g_463))) | l_19.f2)
}
int main()
{
  func_1();
  return 0;
}
2

Davide Italiano changed bug 38076

What | Removed | Added |

  • | - | - |
    Resolution | — | FIXED |
    Status | NEW | RESOLVED |

Comment # 8 on bug 38076 from Davide Italiano

r336872. Thanks, Tianxiao!