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real.c (c4x_single_format, [...]): Provide values for signbit_ro for c4x's single and extended floating point formats.

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* real.c (c4x_single_format, c4x_extended_format): Provide values
	for signbit_ro for c4x's single and extended floating point formats.
	* optabs.c (expand_copysign): Use the floating point format's
	signbit_ro for expanding via expand_copysign_absneg, and it's
	signbit_rw field for expanding via expand_copysign_bit.

Co-Authored-By: Richard Henderson <rth@redhat.com>

From-SVN: r96530
This commit is contained in:
Roger Sayle 2005-03-15 20:43:12 +00:00 committed by Roger Sayle
parent 813edff1aa
commit c064fde513
3 changed files with 20 additions and 12 deletions
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9
gcc/ChangeLog
View File

@ -1,3 +1,12 @@
2005-03-15 Roger Sayle <roger@eyesopen.com>
Richard Henderson <rth@redhat.com>
* real.c (c4x_single_format, c4x_extended_format): Provide values
for signbit_ro for c4x's single and extended floating point formats.
* optabs.c (expand_copysign): Use the floating point format's
signbit_ro for expanding via expand_copysign_absneg, and it's
signbit_rw field for expanding via expand_copysign_bit.
2005-03-15 Dorit Naishlos <dorit@il.ibm.com>
* tree-vectorizer.h (unknown_alignment_for_access_p): Replaced by

19
gcc/optabs.c
View File

@ -2865,7 +2865,6 @@ expand_copysign (rtx op0, rtx op1, rtx target)
{
enum machine_mode mode = GET_MODE (op0);
const struct real_format *fmt;
int bitpos;
bool op0_is_abs;
rtx temp;
@ -2882,10 +2881,6 @@ expand_copysign (rtx op0, rtx op1, rtx target)
if (fmt == NULL || !fmt->has_signed_zero)
return NULL_RTX;
bitpos = fmt->signbit_rw;
if (bitpos < 0)
return NULL_RTX;
op0_is_abs = false;
if (GET_CODE (op0) == CONST_DOUBLE)
{
@ -2894,17 +2889,21 @@ expand_copysign (rtx op0, rtx op1, rtx target)
op0_is_abs = true;
}
if (GET_CODE (op0) == CONST_DOUBLE
|| (neg_optab->handlers[mode].insn_code != CODE_FOR_nothing
&& abs_optab->handlers[mode].insn_code != CODE_FOR_nothing))
if (fmt->signbit_ro >= 0
&& (GET_CODE (op0) == CONST_DOUBLE
|| (neg_optab->handlers[mode].insn_code != CODE_FOR_nothing
&& abs_optab->handlers[mode].insn_code != CODE_FOR_nothing)))
{
temp = expand_copysign_absneg (mode, op0, op1, target,
bitpos, op0_is_abs);
fmt->signbit_ro, op0_is_abs);
if (temp)
return temp;
}
return expand_copysign_bit (mode, op0, op1, target, bitpos, op0_is_abs);
if (fmt->signbit_rw < 0)
return NULL_RTX;
return expand_copysign_bit (mode, op0, op1, target,
fmt->signbit_rw, op0_is_abs);
}
/* Generate an instruction whose insn-code is INSN_CODE,

4
gcc/real.c
View File

@ -4414,7 +4414,7 @@ const struct real_format c4x_single_format =
24,
-126,
128,
-1,
23,
-1,
false,
false,
@ -4433,7 +4433,7 @@ const struct real_format c4x_extended_format =
32,
-126,
128,
-1,
31,
-1,
false,
false,