diff options
| -rw-r--r-- | newlib/ChangeLog | 4 | ||||
| -rw-r--r-- | newlib/libc/machine/x86_64/memcpy.S | 16 |
2 files changed, 12 insertions, 8 deletions
diff --git a/newlib/ChangeLog b/newlib/ChangeLog index 965f986e5..d1199f7ba 100644 --- a/newlib/ChangeLog +++ b/newlib/ChangeLog @@ -1,3 +1,7 @@ +2009-02-05 Neal H. Walfield <neal@gnu.org> + + * libc/machine/x86_64/memcpy.S (memcpy): Don't use the red zone. + 2009-01-28 Jeff Johnston <jjohnstn@redhat.com> * libc/stdio/vfscanf.c (__SVFSCANF_R): Add additional check for diff --git a/newlib/libc/machine/x86_64/memcpy.S b/newlib/libc/machine/x86_64/memcpy.S index 3178dfae2..81dd0c423 100644 --- a/newlib/libc/machine/x86_64/memcpy.S +++ b/newlib/libc/machine/x86_64/memcpy.S @@ -30,10 +30,10 @@ quadword_aligned: cmpq $256, rdx jb quadword_copy - movq rax, -8 (rsp) - movq r12, -16 (rsp) - movq r13, -24 (rsp) - movq r14, -32 (rsp) + pushq rax + pushq r12 + pushq r13 + pushq r14 movq rdx, rcx /* Copy 128 bytes at a time with minimum cache polution */ shrq $7, rcx @@ -89,10 +89,10 @@ loop: movq rdx, rcx andq $127, rcx rep movsb - movq -8 (rsp), rax - movq -16 (rsp), r12 - movq -24 (rsp), r13 - movq -32 (rsp), r14 + popq r14 + popq r13 + popq r12 + popq rax ret |