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arm.c (vfp3_const_double_index): Copy signed results of REAL_VALUE_TO_INT into unsigned vars.

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* arm.c (vfp3_const_double_index): Copy signed results of
	REAL_VALUE_TO_INT into unsigned vars.

From-SVN: r126390
This commit is contained in:
Richard Earnshaw 2007-07-05 21:33:30 +00:00 committed by Richard Earnshaw
parent e11e491dbf
commit 8e39e9afe0
2 changed files with 9 additions and 1 deletions
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5
gcc/ChangeLog
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@ -1,3 +1,8 @@
2007-07-05 Richard Earnshaw <rearnsha@arm.com>
* arm.c (vfp3_const_double_index): Copy signed results of
REAL_VALUE_TO_INT into unsigned vars.
2007-07-05 Richard Guenther <rguenther@suse.de>
PR middle-end/32639

5
gcc/config/arm/arm.c
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@ -5768,6 +5768,7 @@ vfp3_const_double_index (rtx x)
int sign, exponent;
unsigned HOST_WIDE_INT mantissa, mant_hi;
unsigned HOST_WIDE_INT mask;
HOST_WIDE_INT m1, m2;
int point_pos = 2 * HOST_BITS_PER_WIDE_INT - 1;
if (!TARGET_VFP3 || GET_CODE (x) != CONST_DOUBLE)
@ -5788,7 +5789,9 @@ vfp3_const_double_index (rtx x)
WARNING: If there's ever a VFP version which uses more than 2 * H_W_I - 1
bits for the mantissa, this may fail (low bits would be lost). */
real_ldexp (&m, &r, point_pos - exponent);
REAL_VALUE_TO_INT (&mantissa, &mant_hi, m);
REAL_VALUE_TO_INT (&m1, &m2, m);
mantissa = m1;
mant_hi = m2;
/* If there are bits set in the low part of the mantissa, we can't
represent this value. */