https://gcc.gnu.org/bugzilla/show_bug.cgi?id=93088
--- Comment #5 from CVS Commits <cvs-commit at gcc dot gnu.org> --- The releases/gcc-9 branch has been updated by Jakub Jelinek <ja...@gcc.gnu.org>: https://gcc.gnu.org/g:75cdf669074fe6a49ea6a3582acf54d00acfa9ce commit r9-8159-g75cdf669074fe6a49ea6a3582acf54d00acfa9ce Author: Jakub Jelinek <ja...@redhat.com> Date: Wed Jan 22 17:48:48 2020 +0100 re PR rtl-optimization/93088 (Compile time hog on gcc/testsuite/gcc.target/i386/pr56348.c w/ -O3 -funroll-loops -fno-tree-dominator-opts -fno-tree-vrp) PR rtl-optimization/93088 * loop-iv.c (find_single_def_src): Punt after looking through 128 reg copies for regs with single definitions. Move definitions to first uses. * gcc.target/i386/pr93088.c: New test.
