[Bug rtl-optimization/54294] [4.8 Regression]: [alpha] Bootstrap comparison failure due to fwprop handling of debug insns

[ubizjak at gmail dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54294

--- Comment #1 from Uros Bizjak <ubizjak at gmail dot com> 2012-08-16 23:23:39 UTC ---
Created attachment 28040
  --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=28040
Preprocessed source of the object file that triggers comparison failure

~/gcc-build/stage1-gcc/xgcc -B ~/gcc-build/stage1-gcc -O2 -fno-exceptions
-fno-rtti -fno-common -fcompare-debug cprop.ii
xgcc: error: cprop.ii: -fcompare-debug failure (length)