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Fix missing truncation UNDERFLOW.
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commit
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@ -1,3 +1,10 @@
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2012-11-13 Marcus Shawcroft <marcus.shawcroft@linaro.org>
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* soft-fp/op-common.h (_FP_PACK_SEMIRAW): Move underflow
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detection to immediately after _FP_ROUND().
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* soft-fp/soft-fp.h (_FP_ROUND): Don't round if working
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bits are 0.
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2012-11-11 David S. Miller <davem@davemloft.net>
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* sysdeps/unix/sysv/linux/sparc/sparc64/get_clockfreq.c: Include
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@ -134,6 +134,12 @@ do { \
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#define _FP_PACK_SEMIRAW(fs, wc, X) \
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do { \
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_FP_ROUND(wc, X); \
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if (X##_e == 0 && !_FP_FRAC_ZEROP_##wc(X)) \
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{ \
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if ((FP_CUR_EXCEPTIONS & FP_EX_INEXACT) \
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|| (FP_TRAPPING_EXCEPTIONS & FP_EX_UNDERFLOW)) \
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FP_SET_EXCEPTION(FP_EX_UNDERFLOW); \
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} \
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if (_FP_FRAC_HIGH_##fs(X) \
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& (_FP_OVERFLOW_##fs >> 1)) \
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{ \
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@ -143,24 +149,15 @@ do { \
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_FP_OVERFLOW_SEMIRAW(fs, wc, X); \
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} \
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_FP_FRAC_SRL_##wc(X, _FP_WORKBITS); \
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if (!_FP_EXP_NORMAL(fs, wc, X) && !_FP_FRAC_ZEROP_##wc(X)) \
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if (X##_e == _FP_EXPMAX_##fs && !_FP_FRAC_ZEROP_##wc(X)) \
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{ \
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if (X##_e == 0) \
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if (!_FP_KEEPNANFRACP) \
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{ \
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if ((FP_CUR_EXCEPTIONS & FP_EX_INEXACT) \
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|| (FP_TRAPPING_EXCEPTIONS & FP_EX_UNDERFLOW)) \
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FP_SET_EXCEPTION(FP_EX_UNDERFLOW); \
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_FP_FRAC_SET_##wc(X, _FP_NANFRAC_##fs); \
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X##_s = _FP_NANSIGN_##fs; \
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} \
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else \
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{ \
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if (!_FP_KEEPNANFRACP) \
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{ \
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_FP_FRAC_SET_##wc(X, _FP_NANFRAC_##fs); \
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X##_s = _FP_NANSIGN_##fs; \
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} \
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else \
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_FP_FRAC_HIGH_RAW_##fs(X) |= _FP_QNANBIT_##fs; \
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} \
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_FP_FRAC_HIGH_RAW_##fs(X) |= _FP_QNANBIT_##fs; \
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} \
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} while (0)
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@ -158,22 +158,24 @@ do { \
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#define _FP_ROUND(wc, X) \
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do { \
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if (_FP_FRAC_LOW_##wc(X) & 7) \
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FP_SET_EXCEPTION(FP_EX_INEXACT); \
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switch (FP_ROUNDMODE) \
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{ \
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case FP_RND_NEAREST: \
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_FP_ROUND_NEAREST(wc,X); \
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break; \
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case FP_RND_ZERO: \
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_FP_ROUND_ZERO(wc,X); \
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break; \
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case FP_RND_PINF: \
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_FP_ROUND_PINF(wc,X); \
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break; \
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case FP_RND_MINF: \
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_FP_ROUND_MINF(wc,X); \
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break; \
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} \
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{ \
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FP_SET_EXCEPTION(FP_EX_INEXACT); \
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switch (FP_ROUNDMODE) \
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{ \
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case FP_RND_NEAREST: \
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_FP_ROUND_NEAREST(wc,X); \
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break; \
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case FP_RND_ZERO: \
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_FP_ROUND_ZERO(wc,X); \
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break; \
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case FP_RND_PINF: \
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_FP_ROUND_PINF(wc,X); \
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break; \
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case FP_RND_MINF: \
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_FP_ROUND_MINF(wc,X); \
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break; \
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} \
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} \
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} while (0)
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#define FP_CLS_NORMAL 0
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