clang fatal error while building pfe

Originator:kristopherdjohnson
Number:rdar://24321361 Date Originated:25-Jan-2016 01:49 AM
Status:Open Resolved:
Product:Developer Tools Product Version:7.2 (7C68)
Classification:Serious Bug Reproducible:Always
 
Summary:
While attempting to build PFE (Portable Forth Environment), got this output:

fatal error: error in backend: Invalid register name global variable
clang: error: clang frontend command failed with exit code 70 (use -v to see invocation)
Apple LLVM version 7.0.2 (clang-700.1.81)
Target: x86_64-apple-darwin15.3.0
Thread model: posix
clang: note: diagnostic msg: PLEASE submit a bug report to http://developer.apple.com/bugreporter/ and include the crash backtrace, preprocessed source, and associated run script.

Steps to Reproduce:
1. Download pfe source from http://sourceforge.net/projects/pfe/files/latest/download?source=files
2. Extract source files from the tar.bz2
3. Run "configure" and "make"

Expected Results:
Source should build, or the compiler should provide actionable error messages

Actual Results:
Got this output:

fatal error: error in backend: Invalid register name global variable
clang: error: clang frontend command failed with exit code 70 (use -v to see invocation)
Apple LLVM version 7.0.2 (clang-700.1.81)
Target: x86_64-apple-darwin15.3.0
Thread model: posix
clang: note: diagnostic msg: PLEASE submit a bug report to http://developer.apple.com/bugreporter/ and include the crash backtrace, preprocessed source, and associated run script.
clang: note: diagnostic msg: 
********************

PLEASE ATTACH THE FOLLOWING FILES TO THE BUG REPORT:
Preprocessed source(s) and associated run script(s) are located at:
clang: note: diagnostic msg: /var/folders/m2/rybssb891754_bh7qlhn1fw80000gp/T/core-sub-b047cd.c
clang: note: diagnostic msg: /var/folders/m2/rybssb891754_bh7qlhn1fw80000gp/T/core-sub-b047cd.sh
clang: note: diagnostic msg: 

Version:
Xcode Version 7.2 (7C68) & OS X 10.11.3 (15D21)

Notes:


Configuration:


Attachments:
'core-sub-b047cd.sh' and 'core-sub-b047cd.c' were successfully uploaded.

Comments

Response from Apple

This is a courtesy email regarding Bug ID# 24321361.

Engineering has provided the following feedback regarding this issue:

Please try this in the latest Xcode beta [7.3 beta 2]. This is no longer a crash, but an error: 

In file included from ../../pfe/core-sub.c:25:
In file included from ../../pfe/../pfe/pfe-base.h:20:
In file included from ../../pfe/../pfe/pfe-ext.h:14:
In file included from ../../pfe/../pfe/pfe-sub.h:14:
In file included from ../../pfe/../pfe/def-regs.h:25:
../../pfe/../pfe/def-regth.h:44:38: error: register '%edi' unsuitable for global register variables on this target
register struct p4_Thread* p4TH asm (P4_REGTH);
                                    ^
../../pfe/../pfe/def-regmacro.h:174:36: note: expanded from macro 'P4_REGTH'
#            define P4_REGTH       "%"PFE_i386_EDI
                                  ^
1 error generated.
By kristopherdjohnson at Feb. 1, 2016, 5:46 a.m. (reply...)

Workaround available

The bug can be worked around by building PFE like this: 

./configure --without-regs
make
make install
By kristopherdjohnson at Jan. 25, 2016, 7:25 a.m. (reply...)

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