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Author SHA1 Message Date
Russell Gallop 14c4dab603 [utils] Improvements to check_cfc.py to work better with some build systems. 
Recognise options to output dependency files and don't perform checks.
Report input file name when reporting a check failure so it is more obvious in large build logs.

Differential Revision: http://reviews.llvm.org/D10183

llvm-svn: 238928
 2015-06-03 15:09:13 +00:00
Russell Gallop aef6d17c8d [utils] Add exact check to check_cfc.py dash_s_no_change. 
Files compiled with -via-file-asm should be byte for byte identical. This
change improves the checking on dash_s_no_change to detect non-code
differences. If there is a difference, the check goes on to compare code and
debug to try and be more informative.

llvm-svn: 238926
 2015-06-03 14:33:57 +00:00
Russell Gallop b9e15b2e94 [utils] Add Check Compile Flow Consistency tool (check_cfc.py). 
This is a tool for checking consistency of code generation with different
compiler options (such as -g or outputting to .s). This tool has found a number
of code generation issues. The script acts as a wrapper to clang or clang++
performing 2 (or more) compiles then comparing the object files. Instructions
for use are in check_cfc.py including how to use with LNT.

Differential Revision: http://reviews.llvm.org/D8723

llvm-svn: 233919
 2015-04-02 15:01:53 +00:00