https://gcc.gnu.org/bugzilla/show_bug.cgi?id=8340
--- Comment #9 from Kirill Yukhin <kyukhin at gcc dot gnu.org> --- Author: kyukhin Date: Mon Oct 13 17:26:49 2014 New Revision: 216154 URL: https://gcc.gnu.org/viewcvs?rev=216154&root=gcc&view=rev Log: gcc/ PR target/8340 PR middle-end/47602 PR rtl-optimization/55458 * config/i386/i386.c (ix86_use_pseudo_pic_reg): New. (ix86_init_pic_reg): New. (ix86_select_alt_pic_regnum): Add check on pseudo register. (ix86_save_reg): Likewise. (ix86_expand_prologue): Remove PIC register initialization now performed in ix86_init_pic_reg. (ix86_output_function_epilogue): Add check on pseudo register. (set_pic_reg_ever_alive): New. (legitimize_pic_address): Replace df_set_regs_ever_live with new set_pic_reg_ever_alive. (legitimize_tls_address): Likewise. (ix86_pic_register_p): New check. (ix86_delegitimize_address): Add check on pseudo register. (ix86_expand_call): Insert move from pseudo PIC register to ABI defined REAL_PIC_OFFSET_TABLE_REGNUM. (TARGET_INIT_PIC_REG): New. (TARGET_USE_PSEUDO_PIC_REG): New. * config/i386/i386.h (PIC_OFFSET_TABLE_REGNUM): Return INVALID_REGNUM if pic_offset_table_rtx exists. * doc/tm.texi.in (TARGET_USE_PSEUDO_PIC_REG, TARGET_INIT_PIC_REG): Document. * doc/tm.texi: Regenerate. * function.c (assign_parms): Generate pseudo register for PIC. * init-regs.c (initialize_uninitialized_regs): Ignor pseudo PIC register. * ira-color.c (color_pass): Add check on pseudo register. * ira-emit.c (change_loop): Don't create copies for PIC pseudo register. * ira.c (split_live_ranges_for_shrink_wrap): Add check on pseudo register. (ira): Add target specific PIC register initialization. (do_reload): Keep PIC pseudo register. * lra-assigns.c (spill_for): Add checks on pseudo register. * lra-constraints.c (contains_symbol_ref_p): New. (lra_constraints): Enable lra risky transformations when PIC is pseudo register. * shrink-wrap.c (try_shrink_wrapping): Add check on pseudo register. * target.def (use_pseudo_pic_reg): New. (init_pic_reg): New. gcc/testsuite/ PR target/8340 PR middle-end/47602 PR rtl-optimization/55458 * gcc.target/i386/pic-1.c: Remove dg-error as test should pass now. * gcc.target/i386/pr55458.c: Likewise. * gcc.target/i386/pr47602.c: New. * gcc.target/i386/pr23098.c: Move to XFAIL. Modified: trunk/gcc/ChangeLog trunk/gcc/config/i386/i386.c trunk/gcc/config/i386/i386.h trunk/gcc/doc/tm.texi trunk/gcc/doc/tm.texi.in trunk/gcc/function.c trunk/gcc/init-regs.c trunk/gcc/ira-color.c trunk/gcc/ira-emit.c trunk/gcc/ira.c trunk/gcc/lra-assigns.c trunk/gcc/lra-constraints.c trunk/gcc/shrink-wrap.c trunk/gcc/target.def trunk/gcc/testsuite/ChangeLog trunk/gcc/testsuite/gcc.target/i386/pic-1.c trunk/gcc/testsuite/gcc.target/i386/pr23098.c trunk/gcc/testsuite/gcc.target/i386/pr55458.c
