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4886f34179
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.
56 lines
1.6 KiB
C
56 lines
1.6 KiB
C
#include <stdlib.h>
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#include <soft-fp.h>
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#include <quad.h>
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/* Helpers for the Ots functions which receive long double arguments
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in two integer registers, and return values in $16+$17. */
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#define AXP_UNPACK_RAW_Q(X, val) \
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do { \
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union _FP_UNION_Q _flo; \
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_flo.longs.a = val##l; \
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_flo.longs.b = val##h; \
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FP_UNPACK_RAW_QP(X, &_flo); \
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} while (0)
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#define AXP_UNPACK_SEMIRAW_Q(X, val) \
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do { \
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union _FP_UNION_Q _flo; \
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_flo.longs.a = val##l; \
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_flo.longs.b = val##h; \
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FP_UNPACK_SEMIRAW_QP(X, &_flo); \
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} while (0)
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#define AXP_UNPACK_Q(X, val) \
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do { \
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AXP_UNPACK_RAW_Q(X, val); \
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_FP_UNPACK_CANONICAL(Q, 2, X); \
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} while (0)
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#define AXP_PACK_RAW_Q(val, X) FP_PACK_RAW_QP(&val##_flo, X)
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#define AXP_PACK_SEMIRAW_Q(val, X) \
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do { \
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_FP_PACK_SEMIRAW(Q, 2, X); \
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AXP_PACK_RAW_Q(val, X); \
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} while (0)
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#define AXP_PACK_Q(val, X) \
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do { \
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_FP_PACK_CANONICAL(Q, 2, X); \
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AXP_PACK_RAW_Q(val, X); \
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} while (0)
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#define AXP_DECL_RETURN_Q(X) union _FP_UNION_Q X##_flo
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/* ??? We don't have a real way to tell the compiler that we're wanting
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to return values in $16+$17. Instead use a volatile asm to make sure
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that the values are live, and just hope that nothing kills the values
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in between here and the end of the function. */
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#define AXP_RETURN_Q(X) \
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do { \
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register long r16 __asm__("16") = X##_flo.longs.a; \
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register long r17 __asm__("17") = X##_flo.longs.b; \
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asm volatile ("" : : "r"(r16), "r"(r17)); \
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} while (0)
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