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| author | Ulrich Drepper <drepper@redhat.com> | 2002-05-21 02:15:01 +0000 |
|---|---|---|
| committer | Ulrich Drepper <drepper@redhat.com> | 2002-05-21 02:15:01 +0000 |
| commit | cf29934141e8e27bd66c9a7fe4f4c217878365a7 (patch) | |
| tree | b1c57ba760d4820a1e1d9c76c3e9b48f627d60a3 /soft-fp | |
| parent | 509bd8e35ad842944074e43cd2cc22381ee13f5b (diff) | |
| download | glibc-cf29934141e8e27bd66c9a7fe4f4c217878365a7.tar.gz glibc-cf29934141e8e27bd66c9a7fe4f4c217878365a7.tar.xz glibc-cf29934141e8e27bd66c9a7fe4f4c217878365a7.zip | |
Update.
2002-05-17 David S. Miller <davem@redhat.com> * sysdeps/unix/sysv/linux/sparc/fork.S: Define _internal aliases. 2002-05-16 David S. Miller <davem@redhat.com> * sysdeps/sparc/sparc32/dl-machine.h (LOAD_PIC_REG): Define. (elf_machine_dynamic): Use it to force PIC register to be loaded. (elf_machine_load_address): Likewise. * sysdeps/sparc/sparc64/dl-machine.h: Mirror sparc32 changes. * sysdeps/sparc/sparc64/strncmp.S: When second argument pointer is unaligned, do not forget to fully initialize %g1 magic value. * sysdeps/unix/sysv/linux/sparc/sys/procfs.h: Fix 64-bit elf register definitions and provide 32-bit variants of structures during 64-bit builds. * soft-fp/op-1.h (_FP_FRAC_CLEAR_OVERP_1): Define. * soft-fp/op-2.h (_FP_FRAC_CLEAR_OVERP_2): Define. * soft-fp/op-4.h (_FP_FRAC_CLEAR_OVERP_4): Define. * soft-fp/op-common.h (_FP_PACK_CANONICAL): After rounding, if _FP_FRAC_OVERP_X is set, use _FP_FRAC_CLEAR_OVERP_X to clear it. (_FP_FROM_INT): Perform right shifts on unsigned integer type. Do not clear implicit one bit here, it must be done post-rounding. Only pad to the left using left shift if value uses less than the available fractional bits.
Diffstat (limited to 'soft-fp')
| -rw-r--r-- | soft-fp/op-1.h | 1 | ||||
| -rw-r--r-- | soft-fp/op-2.h | 1 | ||||
| -rw-r--r-- | soft-fp/op-4.h | 1 | ||||
| -rw-r--r-- | soft-fp/op-common.h | 21 |
4 files changed, 14 insertions, 10 deletions
diff --git a/soft-fp/op-1.h b/soft-fp/op-1.h index f732143052..367ff2274b 100644 --- a/soft-fp/op-1.h +++ b/soft-fp/op-1.h @@ -55,6 +55,7 @@ #define _FP_FRAC_NEGP_1(X) ((_FP_WS_TYPE)X##_f < 0) #define _FP_FRAC_ZEROP_1(X) (X##_f == 0) #define _FP_FRAC_OVERP_1(fs,X) (X##_f & _FP_OVERFLOW_##fs) +#define _FP_FRAC_CLEAR_OVERP_1(fs,X) (X##_f &= ~_FP_OVERFLOW_##fs) #define _FP_FRAC_EQ_1(X, Y) (X##_f == Y##_f) #define _FP_FRAC_GE_1(X, Y) (X##_f >= Y##_f) #define _FP_FRAC_GT_1(X, Y) (X##_f > Y##_f) diff --git a/soft-fp/op-2.h b/soft-fp/op-2.h index 4a5add55cb..89da27fa4f 100644 --- a/soft-fp/op-2.h +++ b/soft-fp/op-2.h @@ -112,6 +112,7 @@ #define _FP_FRAC_NEGP_2(X) ((_FP_WS_TYPE)X##_f1 < 0) #define _FP_FRAC_ZEROP_2(X) ((X##_f1 | X##_f0) == 0) #define _FP_FRAC_OVERP_2(fs,X) (_FP_FRAC_HIGH_##fs(X) & _FP_OVERFLOW_##fs) +#define _FP_FRAC_CLEAR_OVERP_2(fs,X) (_FP_FRAC_HIGH_##fs(X) &= ~_FP_OVERFLOW_##fs) #define _FP_FRAC_EQ_2(X, Y) (X##_f1 == Y##_f1 && X##_f0 == Y##_f0) #define _FP_FRAC_GT_2(X, Y) \ (X##_f1 > Y##_f1 || X##_f1 == Y##_f1 && X##_f0 > Y##_f0) diff --git a/soft-fp/op-4.h b/soft-fp/op-4.h index 82009000ec..5e3032e44a 100644 --- a/soft-fp/op-4.h +++ b/soft-fp/op-4.h @@ -129,6 +129,7 @@ #define _FP_FRAC_ZEROP_4(X) ((X##_f[0] | X##_f[1] | X##_f[2] | X##_f[3]) == 0) #define _FP_FRAC_NEGP_4(X) ((_FP_WS_TYPE)X##_f[3] < 0) #define _FP_FRAC_OVERP_4(fs,X) (_FP_FRAC_HIGH_##fs(X) & _FP_OVERFLOW_##fs) +#define _FP_FRAC_CLEAR_OVERP_4(fs,X) (_FP_FRAC_HIGH_##fs(X) &= ~_FP_OVERFLOW_##fs) #define _FP_FRAC_EQ_4(X,Y) \ (X##_f[0] == Y##_f[0] && X##_f[1] == Y##_f[1] \ diff --git a/soft-fp/op-common.h b/soft-fp/op-common.h index 012e76f0b7..232604e74a 100644 --- a/soft-fp/op-common.h +++ b/soft-fp/op-common.h @@ -89,11 +89,10 @@ do { \ _FP_ROUND(wc, X); \ if (_FP_FRAC_OVERP_##wc(fs, X)) \ { \ - _FP_FRAC_SRL_##wc(X, (_FP_WORKBITS+1)); \ + _FP_FRAC_CLEAR_OVERP_##wc(fs, X); \ X##_e++; \ } \ - else \ - _FP_FRAC_SRL_##wc(X, _FP_WORKBITS); \ + _FP_FRAC_SRL_##wc(X, _FP_WORKBITS); \ if (X##_e >= _FP_EXPMAX_##fs) \ { \ /* overflow */ \ @@ -682,25 +681,27 @@ do { \ do { \ if (r) \ { \ + unsigned rtype ur_; \ X##_c = FP_CLS_NORMAL; \ \ if ((X##_s = (r < 0))) \ r = -r; \ \ + ur_ = (unsigned rtype) r; \ if (rsize <= _FP_W_TYPE_SIZE) \ - __FP_CLZ(X##_e, r); \ + __FP_CLZ(X##_e, ur_); \ else \ - __FP_CLZ_2(X##_e, (_FP_W_TYPE)(r >> _FP_W_TYPE_SIZE), \ - (_FP_W_TYPE)r); \ + __FP_CLZ_2(X##_e, (_FP_W_TYPE)(ur_ >> _FP_W_TYPE_SIZE), \ + (_FP_W_TYPE)ur_); \ if (rsize < _FP_W_TYPE_SIZE) \ X##_e -= (_FP_W_TYPE_SIZE - rsize); \ X##_e = rsize - X##_e - 1; \ \ if (_FP_FRACBITS_##fs < rsize && _FP_WFRACBITS_##fs < X##_e) \ - __FP_FRAC_SRS_1(r, (X##_e - _FP_WFRACBITS_##fs), rsize); \ - r &= ~((rtype)1 << X##_e); \ - _FP_FRAC_DISASSEMBLE_##wc(X, ((unsigned rtype)r), rsize); \ - _FP_FRAC_SLL_##wc(X, (_FP_WFRACBITS_##fs - X##_e - 1)); \ + __FP_FRAC_SRS_1(ur_, (X##_e - _FP_WFRACBITS_##fs + 1), rsize);\ + _FP_FRAC_DISASSEMBLE_##wc(X, ur_, rsize); \ + if ((_FP_WFRACBITS_##fs - X##_e - 1) > 0) \ + _FP_FRAC_SLL_##wc(X, (_FP_WFRACBITS_##fs - X##_e - 1)); \ } \ else \ { \ |