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| author | rsandifo <rsandifo@138bc75d-0d04-0410-961f-82ee72b054a4> | 2007-01-19 13:34:59 +0000 |
|---|---|---|
| committer | rsandifo <rsandifo@138bc75d-0d04-0410-961f-82ee72b054a4> | 2007-01-19 13:34:59 +0000 |
| commit | afc78fc626220619b70051030a1096945ad93e73 (patch) | |
| tree | 2d282a29fb31bb7a9465bb7f14d848ea31f9af9c /gcc/longlong.h | |
| parent | 9b84b1a02fcbc02d79ae96d975f49e0a47f62ff7 (diff) | |
| download | ppe42-gcc-afc78fc626220619b70051030a1096945ad93e73.tar.gz ppe42-gcc-afc78fc626220619b70051030a1096945ad93e73.zip | |
gcc/
200x-xx-xx Sandra Loosemore <sandra@codesourcery.com>
* longlong.h (count_leading_zeros, COUNT_LEADING_ZEROS_0): Add
ColdFire alternatives.
* config/m68k/m68k.h (CLZ_DEFINED_VALUE_AT_ZERO): New macro.
* config/m68k/m68k.md (clzsi2): Define for ColdFire
architectures that support ff1 instruction.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@120959 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'gcc/longlong.h')
| -rw-r--r-- | gcc/longlong.h | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/gcc/longlong.h b/gcc/longlong.h index 1325b31f0c9..8b512d2f284 100644 --- a/gcc/longlong.h +++ b/gcc/longlong.h @@ -521,6 +521,11 @@ UDItype __umulsidi3 (USItype, USItype); __asm__ ("bfffo %1{%b2:%b2},%0" \ : "=d" ((USItype) (count)) \ : "od" ((USItype) (x)), "n" (0)) +/* Some ColdFire architectures have a ff1 instruction supported via + __builtin_clz. */ +#elif defined (__mcfisaaplus__) || defined (__mcfisac__) +#define count_leading_zeros(count,x) ((count) = __builtin_clz (x)) +#define COUNT_LEADING_ZEROS_0 32 #endif #endif /* mc68000 */ |
