diff options
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/ChangeLog | 6 | ||||
| -rw-r--r-- | gcc/expmed.c | 13 |
2 files changed, 12 insertions, 7 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 0b37036..3ec691e 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,9 @@ +2004-11-26 Richard Kenner <kenner@vlsi1.ultra.nyu.edu> + + * expmed.c (extract_bit_field): When extracting from non-integer mode, + force a SUBREG into a register because we may be taking a further + SUBREG of it. + 2004-11-27 Di-an Jan <dianj@freeshell.org> * doc/contrib.texi (Tim Josling): Remove nesting quotation marks. diff --git a/gcc/expmed.c b/gcc/expmed.c index eeab02f..37d6768 100644 --- a/gcc/expmed.c +++ b/gcc/expmed.c @@ -1163,13 +1163,12 @@ extract_bit_field (rtx str_rtx, unsigned HOST_WIDE_INT bitsize, enum machine_mode imode = int_mode_for_mode (GET_MODE (op0)); if (imode != GET_MODE (op0)) { - if (MEM_P (op0)) - op0 = adjust_address (op0, imode, 0); - else - { - gcc_assert (imode != BLKmode); - op0 = gen_lowpart (imode, op0); - } + op0 = gen_lowpart (imode, op0); + + /* If we got a SUBREG, force it into a register since we aren't going + to be able to do another SUBREG on it. */ + if (GET_CODE (op0) == SUBREG) + op0 = force_reg (imode, op0); } } |