diff options
Diffstat (limited to 'include/math-emu/op-common.h')
| -rw-r--r-- | include/math-emu/op-common.h | 30 |
1 files changed, 22 insertions, 8 deletions
diff --git a/include/math-emu/op-common.h b/include/math-emu/op-common.h index 9696a5e2c437..8ce066c035cf 100644 --- a/include/math-emu/op-common.h +++ b/include/math-emu/op-common.h @@ -308,6 +308,7 @@ do { \ \ case _FP_CLS_COMBINE(FP_CLS_NORMAL,FP_CLS_ZERO): \ R##_e = X##_e; \ + fallthrough; \ case _FP_CLS_COMBINE(FP_CLS_NAN,FP_CLS_NORMAL): \ case _FP_CLS_COMBINE(FP_CLS_NAN,FP_CLS_INF): \ case _FP_CLS_COMBINE(FP_CLS_NAN,FP_CLS_ZERO): \ @@ -318,6 +319,7 @@ do { \ \ case _FP_CLS_COMBINE(FP_CLS_ZERO,FP_CLS_NORMAL): \ R##_e = Y##_e; \ + fallthrough; \ case _FP_CLS_COMBINE(FP_CLS_NORMAL,FP_CLS_NAN): \ case _FP_CLS_COMBINE(FP_CLS_INF,FP_CLS_NAN): \ case _FP_CLS_COMBINE(FP_CLS_ZERO,FP_CLS_NAN): \ @@ -336,7 +338,7 @@ do { \ FP_SET_EXCEPTION(FP_EX_INVALID | FP_EX_INVALID_ISI); \ break; \ } \ - /* FALLTHRU */ \ + fallthrough; \ \ case _FP_CLS_COMBINE(FP_CLS_INF,FP_CLS_NORMAL): \ case _FP_CLS_COMBINE(FP_CLS_INF,FP_CLS_ZERO): \ @@ -415,6 +417,7 @@ do { \ case _FP_CLS_COMBINE(FP_CLS_NAN,FP_CLS_INF): \ case _FP_CLS_COMBINE(FP_CLS_NAN,FP_CLS_ZERO): \ R##_s = X##_s; \ + fallthrough; \ \ case _FP_CLS_COMBINE(FP_CLS_INF,FP_CLS_INF): \ case _FP_CLS_COMBINE(FP_CLS_INF,FP_CLS_NORMAL): \ @@ -428,6 +431,7 @@ do { \ case _FP_CLS_COMBINE(FP_CLS_INF,FP_CLS_NAN): \ case _FP_CLS_COMBINE(FP_CLS_ZERO,FP_CLS_NAN): \ R##_s = Y##_s; \ + fallthrough; \ \ case _FP_CLS_COMBINE(FP_CLS_NORMAL,FP_CLS_INF): \ case _FP_CLS_COMBINE(FP_CLS_NORMAL,FP_CLS_ZERO): \ @@ -493,6 +497,7 @@ do { \ \ case _FP_CLS_COMBINE(FP_CLS_NORMAL,FP_CLS_ZERO): \ FP_SET_EXCEPTION(FP_EX_DIVZERO); \ + fallthrough; \ case _FP_CLS_COMBINE(FP_CLS_INF,FP_CLS_ZERO): \ case _FP_CLS_COMBINE(FP_CLS_INF,FP_CLS_NORMAL): \ R##_c = FP_CLS_INF; \ @@ -657,12 +662,14 @@ do { \ if (X##_e < 0) \ { \ FP_SET_EXCEPTION(FP_EX_INEXACT); \ + fallthrough; \ case FP_CLS_ZERO: \ r = 0; \ } \ else if (X##_e >= rsize - (rsigned > 0 || X##_s) \ || (!rsigned && X##_s)) \ { /* overflow */ \ + fallthrough; \ case FP_CLS_NAN: \ case FP_CLS_INF: \ if (rsigned == 2) \ @@ -685,7 +692,7 @@ do { \ else \ { \ r = 0; \ - if (X##_s) \ + if (!X##_s) \ r = ~r; \ } \ FP_SET_EXCEPTION(FP_EX_INVALID); \ @@ -743,12 +750,17 @@ do { \ } \ else \ { \ + int _lz0, _lz1; \ if (X##_e <= -_FP_WORKBITS - 1) \ _FP_FRAC_SET_##wc(X, _FP_MINFRAC_##wc); \ else \ _FP_FRAC_SRS_##wc(X, _FP_FRACBITS_##fs - 1 - X##_e, \ _FP_WFRACBITS_##fs); \ + _FP_FRAC_CLZ_##wc(_lz0, X); \ _FP_ROUND(wc, X); \ + _FP_FRAC_CLZ_##wc(_lz1, X); \ + if (_lz1 < _lz0) \ + X##_e++; /* For overflow detection. */ \ _FP_FRAC_SRL_##wc(X, _FP_WORKBITS); \ _FP_FRAC_ASSEMBLE_##wc(r, X, rsize); \ } \ @@ -757,12 +769,13 @@ do { \ if (X##_e >= rsize - (rsigned > 0 || X##_s) \ || (!rsigned && X##_s)) \ { /* overflow */ \ + fallthrough; \ case FP_CLS_NAN: \ case FP_CLS_INF: \ if (!rsigned) \ { \ r = 0; \ - if (X##_s) \ + if (!X##_s) \ r = ~r; \ } \ else if (rsigned != 2) \ @@ -790,11 +803,12 @@ do { \ ur_ = (unsigned rtype) -r; \ else \ ur_ = (unsigned rtype) r; \ - if (rsize <= _FP_W_TYPE_SIZE) \ - __FP_CLZ(X##_e, ur_); \ - else \ - __FP_CLZ_2(X##_e, (_FP_W_TYPE)(ur_ >> _FP_W_TYPE_SIZE), \ - (_FP_W_TYPE)ur_); \ + (void) (((rsize) <= _FP_W_TYPE_SIZE) \ + ? ({ __FP_CLZ(X##_e, ur_); }) \ + : ({ \ + __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; \ |