http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49310
Summary: [4.7 Regression] Compile time hog Product: gcc Version: 4.7.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: middle-end AssignedTo: unassig...@gcc.gnu.org ReportedBy: joost.vandevond...@pci.uzh.ch Created attachment 24456 --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=24456 testcase The attached testcase requires a very long compile time with current trunk. this requires about 35s (+- OK) gfortran -c -O1 -g hog.f90 this requires > 900s gfortran -c -O1 -g -fbounds-check hog.f90 (4.6 branch does better with only 57s in the latter case) The same testcase was discussed (and fixed) in http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43627 but the issue might be different this time.