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| author | J"orn Rennecke <amylaar@redhat.com> | 2001-09-20 14:25:11 +0000 |
|---|---|---|
| committer | Joern Rennecke <amylaar@gcc.gnu.org> | 2001-09-20 15:25:11 +0100 |
| commit | c762ab6ebb62bc1e1d93b6d81b83737e39df2c01 (patch) | |
| tree | dfb58441e92635e37ea1095ad3036416261b6212 /gcc | |
| parent | ed1a150e05a8bac9bc109a2e3644c9b13a566fd6 (diff) | |
| download | gcc-c762ab6ebb62bc1e1d93b6d81b83737e39df2c01.zip gcc-c762ab6ebb62bc1e1d93b6d81b83737e39df2c01.tar.gz gcc-c762ab6ebb62bc1e1d93b6d81b83737e39df2c01.tar.bz2 | |
sh.c (shiftcosts): Don't use shiftcosts array for modes wider than SImode.
* sh.c (shiftcosts): Don't use shiftcosts array for modes wider
than SImode.
From-SVN: r45709
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/ChangeLog | 5 | ||||
| -rw-r--r-- | gcc/config/sh/sh.c | 10 |
2 files changed, 15 insertions, 0 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 1b17a43..587e5d9 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,8 @@ +Thu Sep 20 12:49:34 2001 J"orn Rennecke <amylaar@redhat.com> + + * sh.c (shiftcosts): Don't use shiftcosts array for modes wider + than SImode. + Thu Sep 20 09:00:27 2001 Richard Kenner <kenner@vlsi1.ultra.nyu.edu> * stor-layout.c (layout_type, case ARRAY_TYPE): Kludge to disable diff --git a/gcc/config/sh/sh.c b/gcc/config/sh/sh.c index fa39c74..53f8b12 100644 --- a/gcc/config/sh/sh.c +++ b/gcc/config/sh/sh.c @@ -1019,6 +1019,16 @@ shiftcosts (x) { int value; + if (GET_MODE_SIZE (GET_MODE (x)) > UNITS_PER_WORD) + { + if (GET_MODE (x) == DImode + && GET_CODE (XEXP (x, 1)) == CONST_INT + && INTVAL (XEXP (x, 1)) == 1) + return 2; + + /* Everything else is invalid, because there is no pattern for it. */ + return 10000; + } /* If shift by a non constant, then this will be expensive. */ if (GET_CODE (XEXP (x, 1)) != CONST_INT) return SH_DYNAMIC_SHIFT_COST; |