diff options
| -rw-r--r-- | gcc/ChangeLog | 6 | ||||
| -rw-r--r-- | gcc/expmed.c | 7 |
2 files changed, 10 insertions, 3 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index b2e71d9..ce3c62a 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,9 @@ +2009-01-03 Jakub Jelinek <jakub@redhat.com> + + PR target/38707 + * expmed.c (store_bit_field_1): Don't modify op0 if movstrict insn + can't be used. + 2009-01-03 Diego Novillo <dnovillo@google.com> * doc/contrib.texi: Update contributions. diff --git a/gcc/expmed.c b/gcc/expmed.c index 70a0d18..50eb45f 100644 --- a/gcc/expmed.c +++ b/gcc/expmed.c @@ -1,7 +1,7 @@ /* Medium-level subroutines: convert bit-field store and extract and shifts, multiplies and divides to rtl instructions. Copyright (C) 1987, 1988, 1989, 1992, 1993, 1994, 1995, 1996, 1997, 1998, - 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008 + 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009 Free Software Foundation, Inc. This file is part of GCC. @@ -532,6 +532,7 @@ store_bit_field_1 (rtx str_rtx, unsigned HOST_WIDE_INT bitsize, int icode = optab_handler (movstrict_optab, fieldmode)->insn_code; rtx insn; rtx start = get_last_insn (); + rtx arg0 = op0; /* Get appropriate low part of the value being stored. */ if (GET_CODE (value) == CONST_INT || REG_P (value)) @@ -552,11 +553,11 @@ store_bit_field_1 (rtx str_rtx, unsigned HOST_WIDE_INT bitsize, gcc_assert (GET_MODE (SUBREG_REG (op0)) == fieldmode || GET_MODE_CLASS (fieldmode) == MODE_INT || GET_MODE_CLASS (fieldmode) == MODE_PARTIAL_INT); - op0 = SUBREG_REG (op0); + arg0 = SUBREG_REG (op0); } insn = (GEN_FCN (icode) - (gen_rtx_SUBREG (fieldmode, op0, + (gen_rtx_SUBREG (fieldmode, arg0, (bitnum % BITS_PER_WORD) / BITS_PER_UNIT + (offset * UNITS_PER_WORD)), value)); |