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| author | DJ Delorie <dj@delorie.com> | 2013-05-10 03:03:03 +0000 |
|---|---|---|
| committer | DJ Delorie <dj@delorie.com> | 2013-05-10 03:03:03 +0000 |
| commit | f039214ffb9514ec16feb28d1f2471b1e1325a0e (patch) | |
| tree | 8569b51408fe5cbb78a7912dd976756162168add /libiberty | |
| parent | 9f206662f66c7097aff7ef70925f409825a75bdb (diff) | |
| download | gdb-f039214ffb9514ec16feb28d1f2471b1e1325a0e.tar.gz | |
merge from gcc
Diffstat (limited to 'libiberty')
| -rw-r--r-- | libiberty/ChangeLog | 8 | ||||
| -rw-r--r-- | libiberty/hashtab.c | 13 |
2 files changed, 10 insertions, 11 deletions
diff --git a/libiberty/ChangeLog b/libiberty/ChangeLog index 1420ad402f3..a30a363a3f5 100644 --- a/libiberty/ChangeLog +++ b/libiberty/ChangeLog @@ -1,3 +1,11 @@ +2013-05-06 David Edelsohn <dje.gcc@gmail.com> + Peter Bergner <bergner@vnet.ibm.com> + Segher Boessenkool <segher@kernel.crashing.org> + Jakub Jelinek <jakub@redhat.com> + + * hashtab.c (hash_pointer): Remove conditional and avoid + unexecuted shift equal to wordsize. + 2013-04-22 Andi Kleen <ak@linux.intel.com> * hashtab.c (hash_pointer): Move to end of file and reimplement. diff --git a/libiberty/hashtab.c b/libiberty/hashtab.c index a2fe3ee3bdd..04607ea6a01 100644 --- a/libiberty/hashtab.c +++ b/libiberty/hashtab.c @@ -990,17 +990,8 @@ hash_pointer (const PTR p) unsigned a, b, c; a = b = 0x9e3779b9; - if (sizeof (intptr_t) == 4) - { - /* Mix as 16bit for now */ - a += v >> 16; - b += v & 0xffff; - } - else - { - a += v >> 32; - b += v & 0xffffffff; - } + a += v >> (sizeof (intptr_t) * CHAR_BIT / 2); + b += v & (((intptr_t) 1 << (sizeof (intptr_t) * CHAR_BIT / 2)) - 1); c = 0x42135234; mix (a, b, c); return c; |