https://llvm.org/bugs/show_bug.cgi?id=25907
Bug ID: 25907
Summary: Compiler seg-faults in lto for indirect goto
Product: clang
Version: trunk
Hardware: PC
OS: Linux
Status: NEW
Severity: normal
Priority: P
Component: LLVM Codegen
Assignee: unassignedclangb...@nondot.org
Reporter: santosh.zanju...@amd.com
CC: llvm-bugs@lists.llvm.org
Classification: Unclassified
The regression was introduced in svn r255909
Revision details: http://reviews.llvm.org/D14838
Assigned to the owner, Teresa Johnson.
clang igt.c -flto -O1
ld: trunk/llvm/lib/Bitcode/Reader/BitcodeReader.cpp:112:
{anonymous}::BitcodeReaderMDValueList::~BitcodeReaderMDValueList(): Assertion
`!NumFwdRefs || SavedFwdRefs' failed.
clang: error: unable to execute command: Aborted (core dumped)
clang: error: linker command failed due to signal (use -v to see invocation)
Testcase from llvm test-suite:
#include <stdio.h>
int main() {
static const void *L[] = {&&L1, &&L2, &&L3, &&L4, 0 };
unsigned i = 0;
printf("A\n");
L1:
printf("B\n");
L2:
printf("C\n");
L3:
printf("D\n");
goto *L[i++];
L4:
printf("E\n");
return 0;
}
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