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| author | bwilson <bwilson@138bc75d-0d04-0410-961f-82ee72b054a4> | 2006-11-06 18:50:37 +0000 |
|---|---|---|
| committer | bwilson <bwilson@138bc75d-0d04-0410-961f-82ee72b054a4> | 2006-11-06 18:50:37 +0000 |
| commit | 8e8c0c04a82c8f2966db7ce57b17431e4bdbe673 (patch) | |
| tree | 268c5b13ed6895e2d3676f31c09e3e720f0c0bec /gcc/longlong.h | |
| parent | c24099f82007f9c17e03be2191dd2356b35f851d (diff) | |
| download | gcc-8e8c0c04a82c8f2966db7ce57b17431e4bdbe673.tar.gz | |
* longlong.h (__xtensa__): Add definitions for umul_ppmm, __umulsidi3,
count_leading_zeros, and count_trailing_zeros.
* config/xtensa/xtensa.c (TARGET_INIT_BUILTINS): Define.
(TARGET_FOLD_BUILTIN): Define.
(TARGET_EXPAND_BUILTIN): Define.
(xtensa_init_builtins): New.
(xtensa_fold_builtin): New.
(xtensa_expand_builtin): New.
(xtensa_rtx_costs): Add CTZ and CLZ. Adjust costs for MULT.
* config/xtensa/xtensa.h (TARGET_MUL32_HIGH): Define.
(CLZ_DEFINED_VALUE_AT_ZERO): Define.
(CTZ_DEFINED_VALUE_AT_ZERO): Define.
* config/xtensa/xtensa.md (UNSPEC_NSAU): Remove.
(any_extend): New code macro.
(u, su): New code attributes.
(<u>mulsidi3, <u>mulsi3_highpart, clzsi2, ctzsi2): New.
(nsau): Remove; replaced by clzsi2.
(ffssi2): Use clzsi2.
* config/xtensa/t-xtensa (LIB1ASMFUNCS): Add _umulsidi3,
_clzsi2, _ctzsi2, and _ffssi2. Rename _nsau to _clz.
* config/xtensa/lib1funcs.asm (__mulsi3): Support Mul32 option.
(__umulsidi3, __clzsi2, __ctzsi2, __ffssi2): New.
(__nsau_data): Guard with ifdef L_clz instead of L_nsau.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@118524 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'gcc/longlong.h')
| -rw-r--r-- | gcc/longlong.h | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/gcc/longlong.h b/gcc/longlong.h index c4131c67b21..1325b31f0c9 100644 --- a/gcc/longlong.h +++ b/gcc/longlong.h @@ -1189,6 +1189,23 @@ UDItype __umulsidi3 (USItype, USItype); } while (0) #endif /* __vax__ */ +#if defined (__xtensa__) && W_TYPE_SIZE == 32 +/* This code is not Xtensa-configuration-specific, so rely on the compiler + to expand builtin functions depending on what configuration features + are available. This avoids library calls when the operation can be + performed in-line. */ +#define umul_ppmm(w1, w0, u, v) \ + do { \ + DWunion __w; \ + __w.ll = __builtin_umulsidi3 (u, v); \ + w1 = __w.s.high; \ + w0 = __w.s.low; \ + } while (0) +#define __umulsidi3(u, v) __builtin_umulsidi3 (u, v) +#define count_leading_zeros(COUNT, X) ((COUNT) = __builtin_clz (X)) +#define count_trailing_zeros(COUNT, X) ((COUNT) = __builtin_ctz (X)) +#endif /* __xtensa__ */ + #if defined (__z8000__) && W_TYPE_SIZE == 16 #define add_ssaaaa(sh, sl, ah, al, bh, bl) \ __asm__ ("add %H1,%H5\n\tadc %H0,%H3" \ |