https://bugs.llvm.org/show_bug.cgi?id=38066
Bug ID: 38066
Summary: Wrong line hit counts when building without
"-fno-exceptions"
Product: compiler-rt
Version: unspecified
Hardware: PC
OS: Linux
Status: NEW
Severity: enhancement
Priority: P
Component: profile
Assignee: [email protected]
Reporter: [email protected]
CC: [email protected]
Created attachment 20523
--> https://bugs.llvm.org/attachment.cgi?id=20523&action=edit
Archive with GCNO, GCDA, source file and GCOV output
clang++ --coverage -O0 main.cpp
./a.out
llvm-cov gcov main.gcda
The result is:
-: 0:Source:main.cpp
-: 0:Graph:main.gcno
-: 0:Data:main.gcda
-: 0:Runs:1
-: 0:Programs:1
-: 1:#include <iostream>
-: 2:#include <string>
-: 3:
-: 4:using namespace std;
-: 5:
2: 6:class Ciao {
-: 7: public:
-: 8: void setName(string n) {
1: 9: name = n;
1: 10: }
-: 11:
-: 12: private:
-: 13: string name;
-: 14:};
-: 15:
-: 16:int main(void)
-: 17:{
1: 18: Ciao ciao;
-: 19:
3: 20: ciao.setName("marco");
-: 21:
1: 22: return 0;
1: 23:}
Or with llvm-cov gcov -a -b -c main.gcda:
-: 0:Source:main.cpp
-: 0:Graph:main.gcno
-: 0:Data:main.gcda
-: 0:Runs:1
-: 0:Programs:1
-: 1:#include <iostream>
-: 2:#include <string>
-: 3:
-: 4:using namespace std;
-: 5:
function _ZN4CiaoC2Ev called 1 returned 100% blocks executed 100%
function _ZN4CiaoD2Ev called 1 returned 100% blocks executed 100%
1: 6:class Ciao {
1: 6-block 0
1: 6-block 1
-: 7: public:
function _ZN4Ciao7setNameENSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEE
called 1 returned 100% blocks executed 100%
-: 8: void setName(string n) {
1: 9: name = n;
1: 10: }
1: 10-block 0
-: 11:
-: 12: private:
-: 13: string name;
-: 14:};
-: 15:
function main called 1 returned 100% blocks executed 50%
-: 16:int main(void)
-: 17:{
1: 18: Ciao ciao;
-: 19:
1: 20: ciao.setName("marco");
1: 20-block 0
branch 0 taken 1
branch 1 taken 0
1: 20-block 1
branch 2 taken 1
branch 3 taken 0
$$$$$: 20-block 2
-: 21:
1: 22: return 0;
1: 23:}
1: 23-block 0
$$$$$: 23-block 1
$$$$$: 23-block 2
$$$$$: 23-block 3
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