diff options
| author | Bill Moyer <ttk@cygnus.com> | 1998-05-15 17:37:51 +0000 |
|---|---|---|
| committer | Jim Wilson <wilson@gcc.gnu.org> | 1998-05-15 10:37:51 -0700 |
| commit | 829002bbab2e20744a8db95d1a5d248d8c189dcf (patch) | |
| tree | 1b08f512804bdd6979b2acc9173efe1d13a6f613 /gcc/loop.c | |
| parent | b24f65cddd02f22d6ae7f3d7a89904fe3041b9ae (diff) | |
| download | gcc-829002bbab2e20744a8db95d1a5d248d8c189dcf.zip gcc-829002bbab2e20744a8db95d1a5d248d8c189dcf.tar.gz gcc-829002bbab2e20744a8db95d1a5d248d8c189dcf.tar.bz2 | |
Patch from Bill Moyer.
* loop.c (basic_induction_var): Added test preventing
CCmode parameter passed to convert_modes().
From-SVN: r19779
Diffstat (limited to 'gcc/loop.c')
| -rw-r--r-- | gcc/loop.c | 7 |
1 files changed, 6 insertions, 1 deletions
@@ -5257,7 +5257,12 @@ basic_induction_var (x, mode, dest_reg, p, inc_val, mult_val) case CONST_INT: case SYMBOL_REF: case CONST: - if (loops_enclosed == 1) + /* convert_modes aborts if we try to convert to or from CCmode, so just + exclude that case. It is very unlikely that a condition code value + would be a useful iterator anyways. */ + if (loops_enclosed == 1 + && GET_MODE_CLASS (mode) != MODE_CC + && GET_MODE_CLASS (GET_MODE (dest_reg)) != MODE_CC) { /* Possible bug here? Perhaps we don't know the mode of X. */ *inc_val = convert_modes (GET_MODE (dest_reg), mode, x, 0); |