https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=234232
Bug ID: 234232
Summary: clang Assertion failed when building the port
devel/aws-checksums
Product: Base System
Version: CURRENT
Hardware: amd64
OS: Any
Status: New
Severity: Affects Only Me
Priority: ---
Component: bin
Assignee: b...@freebsd.org
Reporter: dan...@freebsd.org
Clang is segfaulting on CURRENT when building devel/aws-checksums.
It stops at this assertion:
Assertion failed: (i == DstIdx || !MI->getOperand(i).isReg() ||
MI->getOperand(i).getReg() != RegA), function processTiedPairs, file
/usr/src/contrib/llvm/lib/CodeGen/TwoAddressInstructionPass.cpp, line 1544.
TwoAddressInstructionPass.cpp:1544.
#ifndef NDEBUG
// First, verify that we don't have a use of "a" in the instruction
// (a = b + a for example) because our transformation will not
// work. This should never occur because we are in SSA form.
for (unsigned i = 0; i != MI->getNumOperands(); ++i)
assert(i == DstIdx ||
!MI->getOperand(i).isReg() ||
MI->getOperand(i).getReg() != RegA);
#endif
The target file (source/intel/crc32c_sse42_asm.c) has a lot of assembly inline
code.
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