From a0ee3b83359ace5b2fb7cd0d400d99472e5738c3 Mon Sep 17 00:00:00 2001 From: Richard Henderson Date: Thu, 25 May 2000 16:19:35 -0700 Subject: [PATCH] * flow.c (mark_set_1): Don't record conditionally dead memory. From-SVN: r34176 --- gcc/ChangeLog | 4 ++++ gcc/flow.c | 2 ++ 2 files changed, 6 insertions(+) diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 287cfb8cde24..084920a50752 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,7 @@ +2000-05-25 Richard Henderson + + * flow.c (mark_set_1): Don't record conditionally dead memory. + 2000-05-25 Jan Hubicka * combine.c (try_combine): Use any_condjump_p, any_uncondjump_p diff --git a/gcc/flow.c b/gcc/flow.c index ec621e555b40..b4ae779086d0 100644 --- a/gcc/flow.c +++ b/gcc/flow.c @@ -4252,6 +4252,8 @@ mark_set_1 (pbi, code, reg, cond, insn, flags) invalidate_mems_from_autoinc (pbi, insn); if (GET_CODE (reg) == MEM && ! side_effects_p (reg) + /* ??? With more effort we could track conditional memory life. */ + && ! cond /* We do not know the size of a BLKmode store, so we do not track them for redundant store elimination. */ && GET_MODE (reg) != BLKmode -- 2.43.5