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| author | Jeffrey A Law <law@cygnus.com> | 1998-06-10 01:14:54 +0000 |
|---|---|---|
| committer | Jeff Law <law@gcc.gnu.org> | 1998-06-09 19:14:54 -0600 |
| commit | 0365438d33268e5541586feb37fd1e490e1a874c (patch) | |
| tree | 431bc695301bcebe9110846311e9adda1846f827 /gcc/reload.c | |
| parent | 93ec7bc577c7da136780a6a7e2196c7b6e1b9cc4 (diff) | |
| download | gcc-0365438d33268e5541586feb37fd1e490e1a874c.zip gcc-0365438d33268e5541586feb37fd1e490e1a874c.tar.gz gcc-0365438d33268e5541586feb37fd1e490e1a874c.tar.bz2 | |
reload.c (find_reloads_toplev): Use gen_lowpart common to convert between constant representations when...
* reload.c (find_reloads_toplev): Use gen_lowpart common to convert
between constant representations when we have (SUBREG (REG)) with
REG equivalent to a constant.
From-SVN: r20398
Diffstat (limited to 'gcc/reload.c')
| -rw-r--r-- | gcc/reload.c | 13 |
1 files changed, 12 insertions, 1 deletions
diff --git a/gcc/reload.c b/gcc/reload.c index 1604a7b..172fa67 100644 --- a/gcc/reload.c +++ b/gcc/reload.c @@ -4289,7 +4289,18 @@ find_reloads_toplev (x, opnum, type, ind_levels, is_set_dest) && (tem = operand_subword (reg_equiv_constant[regno], SUBREG_WORD (x), 0, GET_MODE (SUBREG_REG (x)))) != 0) - return tem; + { + /* TEM is now a word sized constant for the bits from X that + we wanted. However, TEM may be the wrong representation. + + Use gen_lowpart_common to convert a CONST_INT into a + CONST_DOUBLE and vice versa as needed according to by the mode + of the SUBREG. */ + tem = gen_lowpart_common (GET_MODE (x), tem); + if (!tem) + abort (); + return tem; + } /* If the SUBREG is wider than a word, the above test will fail. For example, we might have a SImode SUBREG of a DImode SUBREG_REG |