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emit-rtl.c (operand_subword): Correctly handle extracting a word from a CONST_DOUBLE for 16bit targets with... 

* emit-rtl.c (operand_subword): Correctly handle extracting a word
	from a CONST_DOUBLE for 16bit targets with !WORDS_BIG_ENDIAN.

From-SVN: r17276
This commit is contained in:
Jeffrey A Law 1998-01-01 12:55:19 +00:00 committed by Jeff Law
parent 9f1ff8e8ea
commit aa2ae67960
2 changed files with 11 additions and 1 deletions
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3
gcc/ChangeLog
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@ -1,5 +1,8 @@
Thu Jan 1 10:49:12 1998 Jeffrey A Law (law@cygnus.com)
* emit-rtl.c (operand_subword): Correctly handle extracting a word
from a CONST_DOUBLE for 16bit targets with !WORDS_BIG_ENDIAN.
* mn10200.md (tstxx, cmpxx): Use "nonimmediate_operand" as predicate
for first argument.

9
gcc/emit-rtl.c
View File

@ -1208,7 +1208,7 @@ operand_subword (op, i, validate_address, mode)
{
long value;
value = k[i >> 1];
if ((i & 0x1) == 0)
if ((i & 0x1) == !WORDS_BIG_ENDIAN)
value >>= 16;
value &= 0xffff;
return GEN_INT ((HOST_WIDE_INT) value);
@ -1265,6 +1265,13 @@ operand_subword (op, i, validate_address, mode)
REAL_VALUE_FROM_CONST_DOUBLE (rv, op);
REAL_VALUE_TO_TARGET_SINGLE (rv, l);
if (BITS_PER_WORD == 16)
{
if ((i & 0x1) == !WORDS_BIG_ENDIAN)
l >>= 16;
l &= 0xffff;
}
return GEN_INT ((HOST_WIDE_INT) l);
}
#else