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| author | Vladimir Makarov <vmakarov@redhat.com> | 2019-11-29 22:04:21 +0000 |
|---|---|---|
| committer | Vladimir Makarov <vmakarov@redhat.com> | 2019-11-29 22:04:21 +0000 |
| commit | b1bc045c8239a207efc55ae5a90820c005af6120 (patch) | |
| tree | 2be30cfa92303d42cc397f843394f03ec808bd5f | |
| parent | 98a4f8094bba71217d1a7b77b8cdd55298c002f6 (diff) | |
2019-11-29 Vladimir Makarov <vmakarov@redhat.com>
PR rtl-optimization/92283
* lra.c (lra): Update reg notes after inheritance sub-pass and
before constraint sub-pass.
git-svn-id: https://gcc.gnu.org/svn/gcc/trunk@278865 138bc75d-0d04-0410-961f-82ee72b054a4
| -rw-r--r-- | gcc/ChangeLog | 6 | ||||
| -rw-r--r-- | gcc/lra.c | 7 |
2 files changed, 12 insertions, 1 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 98a93a5086e..630d388677c 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,9 @@ +2019-11-29 Vladimir Makarov <vmakarov@redhat.com> + + PR rtl-optimization/92283 + * lra.c (lra): Update reg notes after inheritance sub-pass and + before constraint sub-pass. + 2019-11-29 Richard Biener <rguenther@suse.de> PR tree-optimization/91003 diff --git a/gcc/lra.c b/gcc/lra.c index ec20aed4492..42b58714d41 100644 --- a/gcc/lra.c +++ b/gcc/lra.c @@ -2473,7 +2473,7 @@ lra (FILE *f) But don't remove dead insns or change global live info as we can undo inheritance transformations after inheritance pseudo assigning. */ - lra_create_live_ranges (true, false); + lra_create_live_ranges (true, !lra_simple_p); live_p = true; /* If we don't spill non-reload and non-inheritance pseudos, there is no sense to run memory-memory move @@ -2514,6 +2514,11 @@ lra (FILE *f) } } while (fails_p); + if (! live_p) { + /* We need the correct reg notes for work of constraint sub-pass. */ + lra_create_live_ranges (true, true); + live_p = true; + } } /* Don't clear optional reloads bitmap until all constraints are satisfied as we need to differ them from regular reloads. */ |