https://gcc.gnu.org/bugzilla/show_bug.cgi?id=120491
Bug ID: 120491
Summary: Wrong line coverage for C++ constructor with multiline
initialization list
Product: gcc
Version: 16.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: gcov-profile
Assignee: unassigned at gcc dot gnu.org
Reporter: wentaoz5 at illinois dot edu
Target Milestone: ---
Hit the issue when measuring coverage for
https://sources.debian.org/src/lzma/9.22-2.2/CPP/7zip/Compress/LzmaDecoder.cpp/#L27
The original report includes
function _ZN9NCompress5NLzma8CDecoderC2Ev called 3 returned 100% blocks
executed 100%
6: 27:CDecoder::CDecoder(): _inBuf(0), _propsWereSet(false),
_outSizeDefined(false),
3: 28: _inBufSize(1 << 20),
3: 29: _outBufSize(1 << 22),
3: 30: FinishStream(false)
call 0 returned 3
call 1 returned 3
call 2 returned 3
call 3 returned 3
call 4 returned 3
call 5 returned 3
call 6 returned 3
call 7 returned 3
-: 31:{
3: 32: _inSizeProcessed = 0;
3: 33: _inPos = _inSize = 0;
3: 34: LzmaDec_Construct(&_state);
3: 35:}
Line coverage at line 27 is wrong and should not be 6, as evidenced by
the lines that follow and "function [...] called 3".
The triggering condition is (1) C++ constructor for a class that inherits
from another base class, and (2) the initialization list is written in
multiple lines.
I will provide a reproducible reduced example soon.
