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alpha: Fix soft-fp breakage

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Commit 5c0508a318 broke the Alpha
port, as the extra parenthesis got in the way of some token pasting
that we were doing in a redefined raw unpack macro.

Avoid this situation in the future by not attempting to redefine a
basic macro, but rather work from the outermost public interface.
The compiler does in fact see through the added indirection.

	* sysdeps/alpha/soft-fp/local-soft-fp.h (_FP_UNPACK_RAW_2): Remove.
	(_FP_PACK_RAW_2): Remove.
	(AXP_DECL_RETURN_Q): Rename from FP_DECL_RETURN, use _FP_UNION_Q.
	(AXP_RETURN_Q): Rename from FP_RETURN, use _FP_UNION_Q.
	(AXP_UNPACK_RAW_Q, AXP_UNPACK_SEMIRAW_Q, AXP_UNPACK_Q): New.
	(AXP_PACK_RAW_Q, AXP_PACK_SEMIRAW_Q, AXP_PACK_Q): New.
	* sysdeps/alpha/soft-fp/ots_add.c (_OtsAddX): Update to match.
	* sysdeps/alpha/soft-fp/ots_cmp.c (internal_equality): Likewise.
	* sysdeps/alpha/soft-fp/ots_cmpe.c (internal_compare): Likewise.
	* sysdeps/alpha/soft-fp/ots_cvtqux.c (_OtsCvtQUX): Likewise.
	* sysdeps/alpha/soft-fp/ots_cvtqx.c (_OtsCvtQX): Likewise.
	* sysdeps/alpha/soft-fp/ots_cvttx.c (_OtsConvertFloatTX): Likewise.
	* sysdeps/alpha/soft-fp/ots_cvtxq.c (_OtsCvtXQ): Likewise.
	* sysdeps/alpha/soft-fp/ots_cvtxt.c (_OtsConvertFloatXT): Likewise.
	* sysdeps/alpha/soft-fp/ots_div.c (_OtsDivX): Likewise.
	* sysdeps/alpha/soft-fp/ots_mul.c (_OtsMulX): Likewise.
	* sysdeps/alpha/soft-fp/ots_nintxq.c (_OtsNintXQ): Likewise.
	* sysdeps/alpha/soft-fp/ots_sub.c (_OtsSubX): Likewise.
This commit is contained in:
Richard Henderson 2014-11-17 09:20:02 -08:00
parent 0781a7772a
commit 4886f34179
14 changed files with 95 additions and 62 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

22
ChangeLog
View File

@ -1,3 +1,25 @@
2014-11-17 Richard Henderson <rth@redhat.com>
* sysdeps/alpha/soft-fp/local-soft-fp.h (_FP_UNPACK_RAW_2): Remove.
(_FP_PACK_RAW_2): Remove.
(AXP_DECL_RETURN_Q): Rename from FP_DECL_RETURN, use _FP_UNION_Q.
(AXP_RETURN_Q): Rename from FP_RETURN, use _FP_UNION_Q.
(AXP_UNPACK_RAW_Q, AXP_UNPACK_SEMIRAW_Q, AXP_UNPACK_Q): New.
(AXP_PACK_RAW_Q, AXP_PACK_SEMIRAW_Q, AXP_PACK_Q): New.
* sysdeps/alpha/soft-fp/ots_add.c (_OtsAddX): Update to match.
* sysdeps/alpha/soft-fp/ots_cmp.c (internal_equality): Likewise.
* sysdeps/alpha/soft-fp/ots_cmpe.c (internal_compare): Likewise.
* sysdeps/alpha/soft-fp/ots_cvtqux.c (_OtsCvtQUX): Likewise.
* sysdeps/alpha/soft-fp/ots_cvtqx.c (_OtsCvtQX): Likewise.
* sysdeps/alpha/soft-fp/ots_cvttx.c (_OtsConvertFloatTX): Likewise.
* sysdeps/alpha/soft-fp/ots_cvtxq.c (_OtsCvtXQ): Likewise.
* sysdeps/alpha/soft-fp/ots_cvtxt.c (_OtsConvertFloatXT): Likewise.
* sysdeps/alpha/soft-fp/ots_div.c (_OtsDivX): Likewise.
* sysdeps/alpha/soft-fp/ots_mul.c (_OtsMulX): Likewise.
* sysdeps/alpha/soft-fp/ots_nintxq.c (_OtsNintXQ): Likewise.
* sysdeps/alpha/soft-fp/ots_sub.c (_OtsSubX): Likewise.
2014-11-14 Roland McGrath <roland@hack.frob.com>
* signal/signal.h [__USE_MISC]

63
sysdeps/alpha/soft-fp/local-soft-fp.h
View File

@ -5,40 +5,51 @@
/* Helpers for the Ots functions which receive long double arguments
in two integer registers, and return values in $16+$17. */
#undef _FP_UNPACK_RAW_2
#define _FP_UNPACK_RAW_2(fs, X, val) \
do { \
union _FP_UNION_##fs _flo; \
#define AXP_UNPACK_RAW_Q(X, val) \
do { \
union _FP_UNION_Q _flo; \
_flo.longs.a = val##l; \
_flo.longs.b = val##h; \
X##_f0 = _flo.bits.frac0; \
X##_f1 = _flo.bits.frac1; \
X##_e = _flo.bits.exp; \
X##_s = _flo.bits.sign; \
FP_UNPACK_RAW_QP(X, &_flo); \
} while (0)
#undef _FP_PACK_RAW_2
#define _FP_PACK_RAW_2(fs, val, X) \
do { \
union _FP_UNION_##fs _flo; \
_flo.bits.frac0 = X##_f0; \
_flo.bits.frac1 = X##_f1; \
_flo.bits.exp = X##_e; \
_flo.bits.sign = X##_s; \
val##l = _flo.longs.a; \
val##h = _flo.longs.b; \
#define AXP_UNPACK_SEMIRAW_Q(X, val) \
do { \
union _FP_UNION_Q _flo; \
_flo.longs.a = val##l; \
_flo.longs.b = val##h; \
FP_UNPACK_SEMIRAW_QP(X, &_flo); \
} while (0)
#define FP_DECL_RETURN(X) \
long X##l, X##h
#define AXP_UNPACK_Q(X, val) \
do { \
AXP_UNPACK_RAW_Q(X, val); \
_FP_UNPACK_CANONICAL(Q, 2, X); \
} while (0)
#define AXP_PACK_RAW_Q(val, X) FP_PACK_RAW_QP(&val##_flo, X)
#define AXP_PACK_SEMIRAW_Q(val, X) \
do { \
_FP_PACK_SEMIRAW(Q, 2, X); \
AXP_PACK_RAW_Q(val, X); \
} while (0)
#define AXP_PACK_Q(val, X) \
do { \
_FP_PACK_CANONICAL(Q, 2, X); \
AXP_PACK_RAW_Q(val, X); \
} while (0)
#define AXP_DECL_RETURN_Q(X) union _FP_UNION_Q X##_flo
/* ??? We don't have a real way to tell the compiler that we're wanting
to return values in $16+$17. Instead use a volatile asm to make sure
that the values are live, and just hope that nothing kills the values
in between here and the end of the function. */
#define FP_RETURN(X) \
do { \
register long r16 __asm__("16") = X##l; \
register long r17 __asm__("17") = X##h; \
asm volatile ("" : : "r"(r16), "r"(r17)); \
} while (0)
#define AXP_RETURN_Q(X) \
do { \
register long r16 __asm__("16") = X##_flo.longs.a; \
register long r17 __asm__("17") = X##_flo.longs.b; \
asm volatile ("" : : "r"(r16), "r"(r17)); \
} while (0)

10
sysdeps/alpha/soft-fp/ots_add.c
View File

@ -25,14 +25,14 @@ _OtsAddX(long al, long ah, long bl, long bh, long _round)
{
FP_DECL_EX;
FP_DECL_Q(A); FP_DECL_Q(B); FP_DECL_Q(C);
FP_DECL_RETURN(c);
AXP_DECL_RETURN_Q(c);
FP_INIT_ROUNDMODE;
FP_UNPACK_SEMIRAW_Q(A, a);
FP_UNPACK_SEMIRAW_Q(B, b);
AXP_UNPACK_SEMIRAW_Q(A, a);
AXP_UNPACK_SEMIRAW_Q(B, b);
FP_ADD_Q(C, A, B);
FP_PACK_SEMIRAW_Q(c, C);
AXP_PACK_SEMIRAW_Q(c, C);
FP_HANDLE_EXCEPTIONS;
FP_RETURN(c);
AXP_RETURN_Q(c);
}

4
sysdeps/alpha/soft-fp/ots_cmp.c
View File

@ -27,8 +27,8 @@ internal_equality (long al, long ah, long bl, long bh, long neq)
FP_DECL_Q(A); FP_DECL_Q(B);
long r;
FP_UNPACK_RAW_Q(A, a);
FP_UNPACK_RAW_Q(B, b);
AXP_UNPACK_RAW_Q(A, a);
AXP_UNPACK_RAW_Q(B, b);
if ((A_e == _FP_EXPMAX_Q && !_FP_FRAC_ZEROP_2(A))
|| (B_e == _FP_EXPMAX_Q && !_FP_FRAC_ZEROP_2(B)))

4
sysdeps/alpha/soft-fp/ots_cmpe.c
View File

@ -27,8 +27,8 @@ internal_compare (long al, long ah, long bl, long bh)
FP_DECL_Q(A); FP_DECL_Q(B);
long r;
FP_UNPACK_RAW_Q(A, a);
FP_UNPACK_RAW_Q(B, b);
AXP_UNPACK_RAW_Q(A, a);
AXP_UNPACK_RAW_Q(B, b);
FP_CMP_Q (r, A, B, 2, 2);
FP_HANDLE_EXCEPTIONS;

6
sysdeps/alpha/soft-fp/ots_cvtqux.c
View File

@ -30,10 +30,10 @@ _OtsCvtQUX (unsigned long a)
{
FP_DECL_EX;
FP_DECL_Q(C);
FP_DECL_RETURN(c);
AXP_DECL_RETURN_Q(c);
FP_FROM_INT_Q(C, a, 64, unsigned long);
FP_PACK_RAW_Q(c, C);
AXP_PACK_RAW_Q(c, C);
FP_RETURN(c);
AXP_RETURN_Q(c);
}

6
sysdeps/alpha/soft-fp/ots_cvtqx.c
View File

@ -30,9 +30,9 @@ _OtsCvtQX (long a)
{
FP_DECL_EX;
FP_DECL_Q(C);
FP_DECL_RETURN(c);
AXP_DECL_RETURN_Q(c);
FP_FROM_INT_Q(C, a, 64, unsigned long);
FP_PACK_RAW_Q(c, C);
FP_RETURN(c);
AXP_PACK_RAW_Q(c, C);
AXP_RETURN_Q(c);
}

6
sysdeps/alpha/soft-fp/ots_cvttx.c
View File

@ -32,7 +32,7 @@ _OtsConvertFloatTX(double a)
FP_DECL_EX;
FP_DECL_D(A);
FP_DECL_Q(C);
FP_DECL_RETURN(c);
AXP_DECL_RETURN_Q(c);
FP_UNPACK_RAW_D(A, a);
#if (2 * _FP_W_TYPE_SIZE) < _FP_FRACBITS_Q
@ -40,8 +40,8 @@ _OtsConvertFloatTX(double a)
#else
FP_EXTEND(Q,D,2,1,C,A);
#endif
FP_PACK_RAW_Q(c, C);
AXP_PACK_RAW_Q(c, C);
FP_HANDLE_EXCEPTIONS;
FP_RETURN(c);
AXP_RETURN_Q(c);
}

2
sysdeps/alpha/soft-fp/ots_cvtxq.c
View File

@ -33,7 +33,7 @@ _OtsCvtXQ (long al, long ah, long _round)
_round = _round & 3;
FP_INIT_ROUNDMODE;
FP_UNPACK_RAW_Q(A, a);
AXP_UNPACK_RAW_Q(A, a);
FP_TO_INT_Q(r, A, 64, s);
FP_HANDLE_EXCEPTIONS;

2
sysdeps/alpha/soft-fp/ots_cvtxt.c
View File

@ -30,7 +30,7 @@ _OtsConvertFloatXT (long al, long ah, long _round)
double r;
FP_INIT_ROUNDMODE;
FP_UNPACK_SEMIRAW_Q(A, a);
AXP_UNPACK_SEMIRAW_Q(A, a);
#if (2 * _FP_W_TYPE_SIZE) < _FP_FRACBITS_Q
FP_TRUNC(D,Q,2,4,R,A);
#else

10
sysdeps/alpha/soft-fp/ots_div.c
View File

@ -25,14 +25,14 @@ _OtsDivX(long al, long ah, long bl, long bh, long _round)
{
FP_DECL_EX;
FP_DECL_Q(A); FP_DECL_Q(B); FP_DECL_Q(C);
FP_DECL_RETURN(c);
AXP_DECL_RETURN_Q(c);
FP_INIT_ROUNDMODE;
FP_UNPACK_Q(A, a);
FP_UNPACK_Q(B, b);
AXP_UNPACK_Q(A, a);
AXP_UNPACK_Q(B, b);
FP_DIV_Q(C, A, B);
FP_PACK_Q(c, C);
AXP_PACK_Q(c, C);
FP_HANDLE_EXCEPTIONS;
FP_RETURN(c);
AXP_RETURN_Q(c);
}

10
sysdeps/alpha/soft-fp/ots_mul.c
View File

@ -25,14 +25,14 @@ _OtsMulX(long al, long ah, long bl, long bh, long _round)
{
FP_DECL_EX;
FP_DECL_Q(A); FP_DECL_Q(B); FP_DECL_Q(C);
FP_DECL_RETURN(c);
AXP_DECL_RETURN_Q(c);
FP_INIT_ROUNDMODE;
FP_UNPACK_Q(A, a);
FP_UNPACK_Q(B, b);
AXP_UNPACK_Q(A, a);
AXP_UNPACK_Q(B, b);
FP_MUL_Q(C, A, B);
FP_PACK_Q(c, C);
AXP_PACK_Q(c, C);
FP_HANDLE_EXCEPTIONS;
FP_RETURN(c);
AXP_RETURN_Q(c);
}

2
sysdeps/alpha/soft-fp/ots_nintxq.c
View File

@ -33,7 +33,7 @@ _OtsNintXQ (long al, long ah, long _round)
_round = _round & 3;
FP_INIT_ROUNDMODE;
FP_UNPACK_SEMIRAW_Q(A, a);
AXP_UNPACK_SEMIRAW_Q(A, a);
/* Build 0.5 * sign(A) */
B_e = _FP_EXPBIAS_Q;

10
sysdeps/alpha/soft-fp/ots_sub.c
View File

@ -25,14 +25,14 @@ _OtsSubX(long al, long ah, long bl, long bh, long _round)
{
FP_DECL_EX;
FP_DECL_Q(A); FP_DECL_Q(B); FP_DECL_Q(C);
FP_DECL_RETURN(c);
AXP_DECL_RETURN_Q(c);
FP_INIT_ROUNDMODE;
FP_UNPACK_SEMIRAW_Q(A, a);
FP_UNPACK_SEMIRAW_Q(B, b);
AXP_UNPACK_SEMIRAW_Q(A, a);
AXP_UNPACK_SEMIRAW_Q(B, b);
FP_SUB_Q(C, A, B);
FP_PACK_SEMIRAW_Q(c, C);
AXP_PACK_SEMIRAW_Q(c, C);
FP_HANDLE_EXCEPTIONS;
FP_RETURN(c);
AXP_RETURN_Q(c);
}