diff options
| -rw-r--r-- | gcc/ChangeLog | 6 | ||||
| -rw-r--r-- | gcc/config/cris/cris.md | 6 |
2 files changed, 10 insertions, 2 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 910fd4f..98c1bd9 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,9 @@ +2015-09-26 Jeff Law <law@redhat.com> + + * config/cris/cris.md (asrandb): Fix left shift undefined + behaviour. + (asrandw): Likewise. + 2015-09-25 Vladimir Makarov <vmakarov@redhat.com> PR target/61578 diff --git a/gcc/config/cris/cris.md b/gcc/config/cris/cris.md index 3c2409b..b90d6b1 100644 --- a/gcc/config/cris/cris.md +++ b/gcc/config/cris/cris.md @@ -4634,7 +4634,8 @@ && INTVAL (operands[1]) > 23 /* Check that the and-operation enables us to use logical-shift. */ && (INTVAL (operands[2]) - & ((HOST_WIDE_INT) -1 << (32 - INTVAL (operands[1])))) == 0" + & ((HOST_WIDE_INT) (HOST_WIDE_INT_M1U + << (32 - INTVAL (operands[1]))))) == 0" [(set (match_dup 0) (lshiftrt:SI (match_dup 0) (match_dup 1))) (set (match_dup 3) (and:QI (match_dup 3) (match_dup 4)))] ;; FIXME: CC0 is valid except for the M bit. @@ -4655,7 +4656,8 @@ && INTVAL (operands[1]) > 15 /* Check that the and-operation enables us to use logical-shift. */ && (INTVAL (operands[2]) - & ((HOST_WIDE_INT) -1 << (32 - INTVAL (operands[1])))) == 0" + & ((HOST_WIDE_INT) (HOST_WIDE_INT_M1U + << (32 - INTVAL (operands[1]))))) == 0" [(set (match_dup 0) (lshiftrt:SI (match_dup 0) (match_dup 1))) (set (match_dup 3) (and:HI (match_dup 3) (match_dup 4)))] ;; FIXME: CC0 is valid except for the M bit. |