http://llvm.org/bugs/show_bug.cgi?id=15225
Bug ID: 15225
Summary: MIPS does not implement __builtin_eh_return_data_regno
correctly
Product: clang
Version: 3.2
Hardware: Other
OS: Linux
Status: NEW
Severity: enhancement
Priority: P
Component: -New Bugs
Assignee: [email protected]
Reporter: [email protected]
CC: [email protected]
Classification: Unclassified
Created attachment 9995
--> http://llvm.org/bugs/attachment.cgi?id=9995&action=edit
Proposed fix
Current MIPS TargetInfo (MipsTargetInfoBase) does not implement
getEHDataRegisterNumber() ie __builtin_eh_return_data_regno().
This makes c++ exception handling not working with libcxx/libcxxrt as
libcxxrt __gxx_personality_v0() function uses this builtin.
The simple attached patch makes the following test code works without
aborting, with libcxx/libcxxrt used as c++ standard library.
#include <stdio.h>
#include <exception>
int main(int argc, char **argv)
{
try {
throw 20;
} catch (int e) {
printf("Exception Nr %d occurred\n", e);
}
return 0;
}
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