diff options
Diffstat (limited to '0133-Backport-SME-mode-switching-Add-note-problem.patch')
| -rw-r--r-- | 0133-Backport-SME-mode-switching-Add-note-problem.patch | 35 |
1 files changed, 35 insertions, 0 deletions
diff --git a/0133-Backport-SME-mode-switching-Add-note-problem.patch b/0133-Backport-SME-mode-switching-Add-note-problem.patch new file mode 100644 index 0000000..21508da --- /dev/null +++ b/0133-Backport-SME-mode-switching-Add-note-problem.patch @@ -0,0 +1,35 @@ +From 7ab54a765239bdd2ce548cffdd5b83f9c20f69da Mon Sep 17 00:00:00 2001 +From: Richard Sandiford <richard.sandiford@arm.com> +Date: Sat, 11 Nov 2023 17:28:55 +0000 +Subject: [PATCH 034/157] [Backport][SME] mode-switching: Add note problem + +Reference: https://gcc.gnu.org/git/?p=gcc.git;a=commit;h=3cd3a09b3f91a1d023cb180763d40598d6bb274b + +optimize_mode_switching uses REG_DEAD notes to track register +liveness, but it failed to tell DF to calculate up-to-date notes. + +Noticed by inspection. I don't have a testcase that fails +because of this. + +gcc/ + * mode-switching.cc (optimize_mode_switching): Call + df_note_add_problem. +--- + gcc/mode-switching.cc | 1 + + 1 file changed, 1 insertion(+) + +diff --git a/gcc/mode-switching.cc b/gcc/mode-switching.cc +index 4cf8f03a0..2a9f98793 100644 +--- a/gcc/mode-switching.cc ++++ b/gcc/mode-switching.cc +@@ -540,6 +540,7 @@ optimize_mode_switching (void) + pre_exit = create_pre_exit (n_entities, entity_map, num_modes); + } + ++ df_note_add_problem (); + df_analyze (); + + /* Create the bitmap vectors. */ +-- +2.33.0 + |