diff options
| author | Hans-Peter Nilsson <hp@bitrange.com> | 2005-01-21 02:14:25 +0000 |
|---|---|---|
| committer | Hans-Peter Nilsson <hp@gcc.gnu.org> | 2005-01-21 02:14:25 +0000 |
| commit | 3eacd71fc13ee261874cb57705c3f2892b71be3e (patch) | |
| tree | ad0b7c7347cbfef576d3024b84271c85ad3e824b /gcc/combine.c | |
| parent | eacf8912b70e813e987afeb5ea2b604243487090 (diff) | |
| download | gcc-3eacd71fc13ee261874cb57705c3f2892b71be3e.zip gcc-3eacd71fc13ee261874cb57705c3f2892b71be3e.tar.gz gcc-3eacd71fc13ee261874cb57705c3f2892b71be3e.tar.bz2 | |
re PR target/18701 (mmix-knuth-mmixware gcc.c-torture/execute failures: 20010224-1.c, 20020216-1.c, 20040218-1.c, 20040709-2.c)
PR target/18701
* combine.c (combine_simplify_rtx): Revert change of 2004-12-31.
From-SVN: r94005
Diffstat (limited to 'gcc/combine.c')
| -rw-r--r-- | gcc/combine.c | 8 |
1 files changed, 2 insertions, 6 deletions
diff --git a/gcc/combine.c b/gcc/combine.c index 984c45e..dca4d97 100644 --- a/gcc/combine.c +++ b/gcc/combine.c @@ -3984,14 +3984,10 @@ combine_simplify_rtx (rtx x, enum machine_mode op0_mode, int in_dest) } /* Don't change the mode of the MEM if that would change the meaning - of the address. Similarly, don't allow widening, as that may - access memory outside the defined object or using an address - that is invalid for a wider mode. */ + of the address. */ if (MEM_P (SUBREG_REG (x)) && (MEM_VOLATILE_P (SUBREG_REG (x)) - || mode_dependent_address_p (XEXP (SUBREG_REG (x), 0)) - || (GET_MODE_SIZE (mode) - > GET_MODE_SIZE (GET_MODE (SUBREG_REG (x)))))) + || mode_dependent_address_p (XEXP (SUBREG_REG (x), 0)))) return gen_rtx_CLOBBER (mode, const0_rtx); /* Note that we cannot do any narrowing for non-constants since |