https://bugs.llvm.org/show_bug.cgi?id=33465
Bug ID: 33465
Summary: llvm-cov: the '||' operator in an assign statement
lead to the statement marked as unexecuted
Product: clang
Version: 4.0
Hardware: PC
OS: All
Status: NEW
Severity: enhancement
Priority: P
Component: -New Bugs
Assignee: unassignedclangb...@nondot.org
Reporter: yangyib...@nju.edu.cn
CC: llvm-bugs@lists.llvm.org
Left part of the '||' operator in an assign statement is executed but the right
part is not executed.
This will lead the assign statement being marked as unexecuted in the llvm-cov.
$ clang-5.0 -O0 -fcoverage-mapping -fprofile-instr-generate=small.profraw
small.c -o small
$ llvm-profdata-5.0 merge -o small.profdata small.profraw
$ llvm-cov-5.0 show small -instr-profile=small.profdata small.c > small.gcov
/* small.c */
$ cat small.c
void main()
{
int g, v = 1;
g = v || !v;
return;
}
/* small.gcov */
$ cat small.gcov
1| |void main()
2| 1|{
3| 1| int g, v = 1;
4| 0| g = v || !v;
5| 1| return;
6| 1|}
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