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authorbstarynk <bstarynk@138bc75d-0d04-0410-961f-82ee72b054a4>2009-08-29 19:26:47 +0000
committerbstarynk <bstarynk@138bc75d-0d04-0410-961f-82ee72b054a4>2009-08-29 19:26:47 +0000
commitc4aa078796bd9c7237e0ac5ea4ab7553106f199d (patch)
tree98a5e7f47a887d71b7ce051eac4583deee5a6dac /gcc/simplify-rtx.c
parente34f5cd313173ac0144aeb70ab96e50fc36605ba (diff)
downloadgcc-c4aa078796bd9c7237e0ac5ea4ab7553106f199d.tar.gz
2009-08-29 Basile Starynkevitch <basile@starynkevitch.net>
MELT branch merged with trunk rev 151199 git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/branches/melt-branch@151206 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'gcc/simplify-rtx.c')
-rw-r--r--gcc/simplify-rtx.c5
1 files changed, 4 insertions, 1 deletions
diff --git a/gcc/simplify-rtx.c b/gcc/simplify-rtx.c
index ff690684ee6..0cf1dd0ce94 100644
--- a/gcc/simplify-rtx.c
+++ b/gcc/simplify-rtx.c
@@ -1997,6 +1997,7 @@ simplify_binary_operation_1 (enum rtx_code code, enum machine_mode mode,
/* x*2 is x+x and x*(-1) is -x */
if (GET_CODE (trueop1) == CONST_DOUBLE
&& SCALAR_FLOAT_MODE_P (GET_MODE (trueop1))
+ && !DECIMAL_FLOAT_MODE_P (GET_MODE (trueop1))
&& GET_MODE (op0) == mode)
{
REAL_VALUE_TYPE d;
@@ -5262,13 +5263,15 @@ simplify_subreg (enum machine_mode outermode, rtx op,
&& GET_MODE_BITSIZE (innermode) >= (2 * GET_MODE_BITSIZE (outermode))
&& CONST_INT_P (XEXP (op, 1))
&& (INTVAL (XEXP (op, 1)) & (GET_MODE_BITSIZE (outermode) - 1)) == 0
+ && INTVAL (XEXP (op, 1)) >= 0
&& INTVAL (XEXP (op, 1)) < GET_MODE_BITSIZE (innermode)
&& byte == subreg_lowpart_offset (outermode, innermode))
{
int shifted_bytes = INTVAL (XEXP (op, 1)) / BITS_PER_UNIT;
return simplify_gen_subreg (outermode, XEXP (op, 0), innermode,
(WORDS_BIG_ENDIAN
- ? byte - shifted_bytes : byte + shifted_bytes));
+ ? byte - shifted_bytes
+ : byte + shifted_bytes));
}
return NULL_RTX;