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| author | Ian Lance Taylor <iant@golang.org> | 2021-09-13 10:37:49 -0700 |
|---|---|---|
| committer | Ian Lance Taylor <iant@golang.org> | 2021-09-13 10:37:49 -0700 |
| commit | e252b51ccde010cbd2a146485d8045103cd99533 (patch) | |
| tree | e060f101cdc32bf5e520de8e5275db9d4236b74c /gcc/dse.c | |
| parent | f10c7c4596dda99d2ee872c995ae4aeda65adbdf (diff) | |
| parent | 104c05c5284b7822d770ee51a7d91946c7e56d50 (diff) | |
| download | gcc-e252b51ccde010cbd2a146485d8045103cd99533.zip gcc-e252b51ccde010cbd2a146485d8045103cd99533.tar.gz gcc-e252b51ccde010cbd2a146485d8045103cd99533.tar.bz2 | |
Merge from trunk revision 104c05c5284b7822d770ee51a7d91946c7e56d50.
Diffstat (limited to 'gcc/dse.c')
| -rw-r--r-- | gcc/dse.c | 11 |
1 files changed, 5 insertions, 6 deletions
@@ -1970,8 +1970,7 @@ get_stored_val (store_info *store_info, machine_mode read_mode, static bool replace_read (store_info *store_info, insn_info_t store_insn, - read_info_t read_info, insn_info_t read_insn, rtx *loc, - bitmap regs_live) + read_info_t read_info, insn_info_t read_insn, rtx *loc) { machine_mode store_mode = GET_MODE (store_info->mem); machine_mode read_mode = GET_MODE (read_info->mem); @@ -2040,7 +2039,8 @@ replace_read (store_info *store_info, insn_info_t store_insn, note_stores (this_insn, look_for_hardregs, regs_set); } - bitmap_and_into (regs_set, regs_live); + if (store_insn->fixed_regs_live) + bitmap_and_into (regs_set, store_insn->fixed_regs_live); if (!bitmap_empty_p (regs_set)) { if (dump_file && (dump_flags & TDF_DETAILS)) @@ -2286,7 +2286,7 @@ check_mem_read_rtx (rtx *loc, bb_info_t bb_info) offset - store_info->offset, width) && replace_read (store_info, i_ptr, read_info, - insn_info, loc, bb_info->regs_live)) + insn_info, loc)) return; /* The bases are the same, just see if the offsets @@ -2352,8 +2352,7 @@ check_mem_read_rtx (rtx *loc, bb_info_t bb_info) store_info->width) && all_positions_needed_p (store_info, offset - store_info->offset, width) - && replace_read (store_info, i_ptr, read_info, insn_info, loc, - bb_info->regs_live)) + && replace_read (store_info, i_ptr, read_info, insn_info, loc)) return; remove = canon_true_dependence (store_info->mem, |