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| author | Jim Wilson <wilson@cygnus.com> | 1999-02-10 17:28:24 +0000 |
|---|---|---|
| committer | Jim Wilson <wilson@gcc.gnu.org> | 1999-02-10 09:28:24 -0800 |
| commit | b5a3eb844512505aed41fb3a0cb4e3f45c082589 (patch) | |
| tree | 893f28e5cc7f90ccdec4e2184b9e0139d7125f68 /gcc/emit-rtl.c | |
| parent | 01dd4564b6358bed9004a3f8daa41234d1555108 (diff) | |
| download | gcc-b5a3eb844512505aed41fb3a0cb4e3f45c082589.zip gcc-b5a3eb844512505aed41fb3a0cb4e3f45c082589.tar.gz gcc-b5a3eb844512505aed41fb3a0cb4e3f45c082589.tar.bz2 | |
Fix 64b-x-32b cross compiler breakage. Make alpha-x-m32r work again.
* emit-rtl.c (operand_subword): Sign extend REAL_VALUE_TO_TARGET_SINGLE
result.
* final.c (split_double): Sign extend REAL_VALUE_TO_TARGET_DOUBLE
result.
* real.c (endian): Delete sign extension code.
* config/m32r/m32r.md (movsf_insn+1): REAL_VALUE_TO_TARGET_SINGLE call
replaced with operand_subword call.
From-SVN: r25140
Diffstat (limited to 'gcc/emit-rtl.c')
| -rw-r--r-- | gcc/emit-rtl.c | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/gcc/emit-rtl.c b/gcc/emit-rtl.c index 2e48bde..a761c45 100644 --- a/gcc/emit-rtl.c +++ b/gcc/emit-rtl.c @@ -1303,6 +1303,18 @@ operand_subword (op, i, validate_address, mode) REAL_VALUE_FROM_CONST_DOUBLE (rv, op); REAL_VALUE_TO_TARGET_SINGLE (rv, l); + /* If 32 bits is an entire word for the target, but not for the host, + then sign-extend on the host so that the number will look the same + way on the host that it would on the target. See for instance + simplify_unary_operation. The #if is needed to avoid compiler + warnings. */ + +#if HOST_BITS_PER_LONG > 32 + if (BITS_PER_WORD < HOST_BITS_PER_LONG && BITS_PER_WORD == 32 + && (l & ((long) 1 << 31))) + l |= ((long) (-1) << 32); +#endif + if (BITS_PER_WORD == 16) { if ((i & 0x1) == !WORDS_BIG_ENDIAN) |