diff options
Diffstat (limited to '0131-Backport-SME-mode-switching-Remove-unused-bbnum-fiel.patch')
| -rw-r--r-- | 0131-Backport-SME-mode-switching-Remove-unused-bbnum-fiel.patch | 104 |
1 files changed, 104 insertions, 0 deletions
diff --git a/0131-Backport-SME-mode-switching-Remove-unused-bbnum-fiel.patch b/0131-Backport-SME-mode-switching-Remove-unused-bbnum-fiel.patch new file mode 100644 index 0000000..15c8418 --- /dev/null +++ b/0131-Backport-SME-mode-switching-Remove-unused-bbnum-fiel.patch @@ -0,0 +1,104 @@ +From 8a43bd7885ce479cadb0643fbb0fc22d2b0ffced Mon Sep 17 00:00:00 2001 +From: Richard Sandiford <richard.sandiford@arm.com> +Date: Sun, 5 Nov 2023 18:28:46 +0000 +Subject: [PATCH 032/157] [Backport][SME] mode-switching: Remove unused bbnum + field + +Reference: https://gcc.gnu.org/git/?p=gcc.git;a=commit;h=2d55ed2b8a754d7279cd002941f7cb481f0fd133 + +seginfo had an unused bbnum field, presumably dating from before +BB information was attached directly to insns. + +gcc/ + * mode-switching.cc: Remove unused forward references. + (seginfo): Remove bbnum. + (new_seginfo): Remove associated argument. + (optimize_mode_switching): Update calls accordingly. +--- + gcc/mode-switching.cc | 18 +++++------------- + 1 file changed, 5 insertions(+), 13 deletions(-) + +diff --git a/gcc/mode-switching.cc b/gcc/mode-switching.cc +index 6e3f1dc65..4cf8f03a0 100644 +--- a/gcc/mode-switching.cc ++++ b/gcc/mode-switching.cc +@@ -65,13 +65,11 @@ along with GCC; see the file COPYING3. If not see + MODE is the mode this insn must be executed in. + INSN_PTR is the insn to be executed (may be the note that marks the + beginning of a basic block). +- BBNUM is the flow graph basic block this insn occurs in. + NEXT is the next insn in the same basic block. */ + struct seginfo + { + int mode; + rtx_insn *insn_ptr; +- int bbnum; + struct seginfo *next; + HARD_REG_SET regs_live; + }; +@@ -84,11 +82,6 @@ struct bb_info + int mode_in; + }; + +-static struct seginfo * new_seginfo (int, rtx_insn *, int, HARD_REG_SET); +-static void add_seginfo (struct bb_info *, struct seginfo *); +-static void reg_dies (rtx, HARD_REG_SET *); +-static void reg_becomes_live (rtx, const_rtx, void *); +- + /* Clear ode I from entity J in bitmap B. */ + #define clear_mode_bit(b, j, i) \ + bitmap_clear_bit (b, (j * max_num_modes) + i) +@@ -148,13 +141,13 @@ commit_mode_sets (struct edge_list *edge_list, int e, struct bb_info *info) + } + + /* Allocate a new BBINFO structure, initialized with the MODE, INSN, +- and basic block BB parameters. ++ and REGS_LIVE parameters. + INSN may not be a NOTE_INSN_BASIC_BLOCK, unless it is an empty + basic block; that allows us later to insert instructions in a FIFO-like + manner. */ + + static struct seginfo * +-new_seginfo (int mode, rtx_insn *insn, int bb, HARD_REG_SET regs_live) ++new_seginfo (int mode, rtx_insn *insn, const HARD_REG_SET ®s_live) + { + struct seginfo *ptr; + +@@ -163,7 +156,6 @@ new_seginfo (int mode, rtx_insn *insn, int bb, HARD_REG_SET regs_live) + ptr = XNEW (struct seginfo); + ptr->mode = mode; + ptr->insn_ptr = insn; +- ptr->bbnum = bb; + ptr->next = NULL; + ptr->regs_live = regs_live; + return ptr; +@@ -604,7 +596,7 @@ optimize_mode_switching (void) + gcc_assert (NOTE_INSN_BASIC_BLOCK_P (ins_pos)); + if (ins_pos != BB_END (bb)) + ins_pos = NEXT_INSN (ins_pos); +- ptr = new_seginfo (no_mode, ins_pos, bb->index, live_now); ++ ptr = new_seginfo (no_mode, ins_pos, live_now); + add_seginfo (info + bb->index, ptr); + for (i = 0; i < no_mode; i++) + clear_mode_bit (transp[bb->index], j, i); +@@ -622,7 +614,7 @@ optimize_mode_switching (void) + { + any_set_required = true; + last_mode = mode; +- ptr = new_seginfo (mode, insn, bb->index, live_now); ++ ptr = new_seginfo (mode, insn, live_now); + add_seginfo (info + bb->index, ptr); + for (i = 0; i < no_mode; i++) + clear_mode_bit (transp[bb->index], j, i); +@@ -651,7 +643,7 @@ optimize_mode_switching (void) + mark the block as nontransparent. */ + if (!any_set_required) + { +- ptr = new_seginfo (no_mode, BB_END (bb), bb->index, live_now); ++ ptr = new_seginfo (no_mode, BB_END (bb), live_now); + add_seginfo (info + bb->index, ptr); + if (last_mode != no_mode) + for (i = 0; i < no_mode; i++) +-- +2.33.0 + |