diff options
Diffstat (limited to 'gcc-4.8/gcc/config/tilegx/tilegx.c')
| -rw-r--r-- | gcc-4.8/gcc/config/tilegx/tilegx.c | 37 |
1 files changed, 35 insertions, 2 deletions
diff --git a/gcc-4.8/gcc/config/tilegx/tilegx.c b/gcc-4.8/gcc/config/tilegx/tilegx.c index beb1012cf..502b953cf 100644 --- a/gcc-4.8/gcc/config/tilegx/tilegx.c +++ b/gcc-4.8/gcc/config/tilegx/tilegx.c @@ -702,6 +702,16 @@ tilegx_init_expanders (void) } +/* Implement TARGET_EXPAND_TO_RTL_HOOK. */ +static void +tilegx_expand_to_rtl_hook (void) +{ + /* Exclude earlier sets of crtl->uses_pic_offset_table, because we + only care about uses actually emitted. */ + crtl->uses_pic_offset_table = 0; +} + + /* Implement TARGET_SHIFT_TRUNCATION_MASK. DImode shifts use the mode matching insns and therefore guarantee that the shift count is modulo 64. SImode shifts sometimes use the 64 bit version so do @@ -3543,6 +3553,12 @@ tilegx_expand_builtin (tree exp, } if (!pat) return NULL_RTX; + + /* If we are generating a prefetch, tell the scheduler not to move + it around. */ + if (GET_CODE (pat) == PREFETCH) + PREFETCH_SCHEDULE_BARRIER_P (pat) = true; + emit_insn (pat); if (nonvoid) @@ -4368,10 +4384,12 @@ tilegx_gen_bundles (void) basic_block bb; FOR_EACH_BB (bb) { - rtx insn, next; + rtx insn, next, prev; rtx end = NEXT_INSN (BB_END (bb)); - for (insn = next_insn_to_bundle (BB_HEAD (bb), end); insn; insn = next) + prev = NULL_RTX; + for (insn = next_insn_to_bundle (BB_HEAD (bb), end); insn; + prev = insn, insn = next) { next = next_insn_to_bundle (NEXT_INSN (insn), end); @@ -4396,6 +4414,18 @@ tilegx_gen_bundles (void) PUT_MODE (insn, SImode); } } + + /* Delete barrier insns, because they can mess up the + emitting of bundle braces. If it is end-of-bundle, then + the previous insn must be marked end-of-bundle. */ + if (get_attr_type (insn) == TYPE_NOTHING) { + if (GET_MODE (insn) == QImode && prev != NULL + && GET_MODE (prev) == SImode) + { + PUT_MODE (prev, QImode); + } + delete_insn (insn); + } } } } @@ -5498,6 +5528,9 @@ tilegx_file_end (void) #undef TARGET_RTX_COSTS #define TARGET_RTX_COSTS tilegx_rtx_costs +#undef TARGET_EXPAND_TO_RTL_HOOK +#define TARGET_EXPAND_TO_RTL_HOOK tilegx_expand_to_rtl_hook + #undef TARGET_SHIFT_TRUNCATION_MASK #define TARGET_SHIFT_TRUNCATION_MASK tilegx_shift_truncation_mask |