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| author | Ulrich Weigand <uweigand@de.ibm.com> | 2003-10-06 15:56:07 +0000 |
|---|---|---|
| committer | Ulrich Weigand <uweigand@gcc.gnu.org> | 2003-10-06 15:56:07 +0000 |
| commit | 6357135a0e6e8d95d05b370f15e6daff39d7dfee (patch) | |
| tree | c18ad9ed7b7463770d1ceca5a1b5e735e8be8eba /gcc/reload.c | |
| parent | fffeb871a114219c8aa729064632af142b1bf6c6 (diff) | |
| download | gcc-6357135a0e6e8d95d05b370f15e6daff39d7dfee.zip gcc-6357135a0e6e8d95d05b370f15e6daff39d7dfee.tar.gz gcc-6357135a0e6e8d95d05b370f15e6daff39d7dfee.tar.bz2 | |
reload.c (find_reloads_subreg_address): Use correct offset for paradoxical MEM subregs on big-endian targets.
* reload.c (find_reloads_subreg_address): Use correct offset for
paradoxical MEM subregs on big-endian targets.
From-SVN: r72153
Diffstat (limited to 'gcc/reload.c')
| -rw-r--r-- | gcc/reload.c | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/gcc/reload.c b/gcc/reload.c index dc088730..59852ba 100644 --- a/gcc/reload.c +++ b/gcc/reload.c @@ -5806,9 +5806,16 @@ find_reloads_subreg_address (rtx x, int force_replace, int opnum, if (force_replace || ! rtx_equal_p (tem, reg_equiv_mem[regno])) { - int offset = SUBREG_BYTE (x); unsigned outer_size = GET_MODE_SIZE (GET_MODE (x)); unsigned inner_size = GET_MODE_SIZE (GET_MODE (SUBREG_REG (x))); + int offset; + + /* For big-endian paradoxical subregs, SUBREG_BYTE does not + hold the correct (negative) byte offset. */ + if (BYTES_BIG_ENDIAN && outer_size > inner_size) + offset = inner_size - outer_size; + else + offset = SUBREG_BYTE (x); XEXP (tem, 0) = plus_constant (XEXP (tem, 0), offset); PUT_MODE (tem, GET_MODE (x)); |