[LLVMdev] Value of structure passed byval to a recurse function not initialized when accessed through GDB
karthikthecool at gmail.com
Tue Dec 4 05:34:36 PST 2012
I was debugging a clang binary when i found this problem. The
following code is complied with clang.
typedef struct s
void recurse (SVAL a, int depth)
a.s = --depth;
if (depth == 0)
int main ()
SVAL s; s.s = 5;
recurse (s, 5);
When i try to access value of a.s in function recurse through gdb(i.e
gdb > p a.s) it gives me an uninitialized value.
The problem occurs only when we have a function call within function
to which we have passed a structure.
Could someone guide me were can i look to fix this issue.
I have started with LowerFormalArguments in X86ISelLowering.cpp file.
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