diff options
Diffstat (limited to '0141-Backport-SME-mode-switching-Use-1-based-edge-aux-fie.patch')
| -rw-r--r-- | 0141-Backport-SME-mode-switching-Use-1-based-edge-aux-fie.patch | 56 |
1 files changed, 56 insertions, 0 deletions
diff --git a/0141-Backport-SME-mode-switching-Use-1-based-edge-aux-fie.patch b/0141-Backport-SME-mode-switching-Use-1-based-edge-aux-fie.patch new file mode 100644 index 0000000..0cb257e --- /dev/null +++ b/0141-Backport-SME-mode-switching-Use-1-based-edge-aux-fie.patch @@ -0,0 +1,56 @@ +From b0d3536b2a28d3a7084e3bbb9532e719aaf2016b Mon Sep 17 00:00:00 2001 +From: Richard Sandiford <richard.sandiford@arm.com> +Date: Sat, 11 Nov 2023 17:28:59 +0000 +Subject: [PATCH 042/157] [Backport][SME] mode-switching: Use 1-based edge aux + fields + +Reference: https://gcc.gnu.org/git/?p=gcc.git;a=commit;h=718228a6f479fe252e0e6f71933c2465b7b480a9 + +The pass used the edge aux field to record which mode change +should happen on the edge, with -1 meaning "none". It's more +convenient for later patches to leave aux zero for "none", +and use numbers based at 1 to record a change. + +gcc/ + * mode-switching.cc (commit_mode_sets): Use 1-based edge aux values. +--- + gcc/mode-switching.cc | 8 ++++---- + 1 file changed, 4 insertions(+), 4 deletions(-) + +diff --git a/gcc/mode-switching.cc b/gcc/mode-switching.cc +index 4f0445894..89a8494c6 100644 +--- a/gcc/mode-switching.cc ++++ b/gcc/mode-switching.cc +@@ -106,10 +106,10 @@ commit_mode_sets (struct edge_list *edge_list, int e, struct bb_info *info) + for (int ed = NUM_EDGES (edge_list) - 1; ed >= 0; ed--) + { + edge eg = INDEX_EDGE (edge_list, ed); +- int mode; + +- if ((mode = (int)(intptr_t)(eg->aux)) != -1) ++ if (eg->aux) + { ++ int mode = (int) (intptr_t) eg->aux - 1; + HARD_REG_SET live_at_edge; + basic_block src_bb = eg->src; + int cur_mode = info[src_bb->index].mode_out; +@@ -727,14 +727,14 @@ optimize_mode_switching (void) + { + edge eg = INDEX_EDGE (edge_list, ed); + +- eg->aux = (void *)(intptr_t)-1; ++ eg->aux = (void *) (intptr_t) 0; + + for (i = 0; i < no_mode; i++) + { + int m = targetm.mode_switching.priority (entity_map[j], i); + if (mode_bit_p (insert[ed], j, m)) + { +- eg->aux = (void *)(intptr_t)m; ++ eg->aux = (void *) (intptr_t) (m + 1); + break; + } + } +-- +2.33.0 + |