http://llvm.org/bugs/show_bug.cgi?id=21482
Bug ID: 21482
Summary: dependency-dump.m fails with super-long pathname
Product: clang
Version: trunk
Hardware: PC
OS: Windows NT
Status: NEW
Severity: normal
Priority: P
Component: Modules
Assignee: [email protected]
Reporter: [email protected]
CC: [email protected], [email protected]
Classification: Unclassified
Created attachment 13291
--> http://llvm.org/bugs/attachment.cgi?id=13291&action=edit
repro script
Our internal Windows bots use some pretty long path names, and
something about how Modules works is tripping over them.
I've attached a .bat script that will repro this failure outside of
the lit framework; that makes it easy to manipulate the length of the
directory name passed to -fmodules-cache-path and -module-dependency-dir.
As attached, the script causes FileCheck to fail as follows:
e:\upstream\llvm\tools\clang\test\Modules\dependency-dump.m:9:9: error:
expected
string not found in input
// VFS: 'name': "SubFramework.h"
^
e:\cmplr\scratch\incredible-ridiculously-long-directory-component\incredible-rid
iculously-long-directory-component\123456789012345678901\vfs\vfs.yaml:1:1:
note:
scanning from here
{
^
e:\cmplr\scratch\incredible-ridiculously-long-directory-component\incredible-rid
iculously-long-directory-component\123456789012345678901\vfs\vfs.yaml:26:2:
note
: possible intended match here
'name': "Sub.h",
^
But, if you make that directory name 1 character shorter, it passes.
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