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| author | kyukhin <kyukhin@138bc75d-0d04-0410-961f-82ee72b054a4> | 2014-10-13 17:26:49 +0000 |
|---|---|---|
| committer | kyukhin <kyukhin@138bc75d-0d04-0410-961f-82ee72b054a4> | 2014-10-13 17:26:49 +0000 |
| commit | a9d8ab3820ccd10d2ac547295dadf75a33077f14 (patch) | |
| tree | 6c2ee30ea96f8dde643e082a6ab50870b1a8de9e /gcc/ira-emit.c | |
| parent | ec4bcc2244e0eb7825cf9de7b09bc967ba6c2741 (diff) | |
| download | gcc-a9d8ab3820ccd10d2ac547295dadf75a33077f14.tar.gz | |
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.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@216154 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'gcc/ira-emit.c')
| -rw-r--r-- | gcc/ira-emit.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/gcc/ira-emit.c b/gcc/ira-emit.c index a3bf41e984f..676ee1acc97 100644 --- a/gcc/ira-emit.c +++ b/gcc/ira-emit.c @@ -620,7 +620,10 @@ change_loop (ira_loop_tree_node_t node) /* don't create copies because reload can spill an allocno set by copy although the allocno will not get memory slot. */ - || ira_equiv_no_lvalue_p (regno))) + || ira_equiv_no_lvalue_p (regno) + || (pic_offset_table_rtx != NULL + && (ALLOCNO_REGNO (allocno) + == (int) REGNO (pic_offset_table_rtx))))) continue; original_reg = allocno_emit_reg (allocno); if (parent_allocno == NULL |