------- Comment #2 from hp at gcc dot gnu dot org 2005-11-09 02:30 ------- Created an attachment (id=10182) --> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=10182&action=view) Compile with -Os
Note the brittleness of the test-case. Apparently there's a bug, PR 20656, causing the empty, seemingly-reducible, sometimes redundant for-loops aren't gone when RTL is generated and can't be replaced with a single assignment without causing the test-case to PASS. For example, the "for (i = 1; i <= u0; i++) { }" loop can't be removed. -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=24750