https://bugs.llvm.org/show_bug.cgi?id=35580
Bug ID: 35580
Summary: Inconsistent -MD/-MG behavior
Product: clang
Version: 5.0
Hardware: PC
OS: Linux
Status: NEW
Severity: normal
Priority: P
Component: Frontend
Assignee: unassignedclangb...@nondot.org
Reporter: bo...@codesynthesis.com
CC: llvm-bugs@lists.llvm.org
Created attachment 19531
--> https://bugs.llvm.org/attachment.cgi?id=19531&action=edit
Reproducing script.
The attached reproducer shows inconsistent behavior between -MD and -MG modes:
+ clang++ -w -MQ ^ -x c++ -MD -E -frewrite-includes -MF - -o unit.o.ii unit.cxx
unit.cxx:1:10: error: 'hello.hpp' file not found with <angled> include; use
"quotes" instead
#include <hello.hpp>
^~~~~~~~~~~
"hello.hpp"
^: unit.cxx hello.hpp
1 error generated.
+ echo $?
1
+ clang++ -w -MQ ^ -x c++ -M -MG unit.cxx
^: unit.cxx hello.hpp
+ echo $?
0
It cannot be both an invalid include and a potentially generated header.
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