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| -rw-r--r-- | gcc/ChangeLog | 6 | ||||
| -rw-r--r-- | gcc/combine.c | 4 |
2 files changed, 10 insertions, 0 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 4cf1e815ce4..fe9a60a0c77 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,9 @@ +2016-01-14 Jakub Jelinek <jakub@redhat.com> + + PR target/68269 + * combine.c (expand_field_assignment): Punt if compute_mode is + unsupported scalar mode. + 2016-01-14 Richard Biener <rguenther@suse.de> PR tree-optimization/66856 diff --git a/gcc/combine.c b/gcc/combine.c index d088031b853..2f913dd8ea9 100644 --- a/gcc/combine.c +++ b/gcc/combine.c @@ -7247,6 +7247,10 @@ expand_field_assignment (const_rtx x) if (len >= HOST_BITS_PER_WIDE_INT) break; + /* Don't try to compute in too wide unsupported modes. */ + if (!targetm.scalar_mode_supported_p (compute_mode)) + break; + /* Now compute the equivalent expression. Make a copy of INNER for the SET_DEST in case it is a MEM into which we will substitute; we don't want shared RTL in that case. */ |