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setjmp: optimize x86 longjmp epilogues
[musl]
/
src
/
setjmp
/
x86_64
/
longjmp.s
diff --git
a/src/setjmp/x86_64/longjmp.s
b/src/setjmp/x86_64/longjmp.s
index
e709aca
..
bb88afa
100644
(file)
--- a/
src/setjmp/x86_64/longjmp.s
+++ b/
src/setjmp/x86_64/longjmp.s
@@
-16,7
+16,5
@@
longjmp:
mov 24(%rdi),%r13
mov 32(%rdi),%r14
mov 40(%rdi),%r15
mov 24(%rdi),%r13
mov 32(%rdi),%r14
mov 40(%rdi),%r15
- mov 48(%rdi),%rdx /* this ends up being the stack pointer */
- mov %rdx,%rsp
- mov 56(%rdi),%rdx /* this is the instruction pointer */
- jmp *%rdx /* goto saved address without altering rsp */
+ mov 48(%rdi),%rsp
+ jmp *56(%rdi) /* goto saved address without altering rsp */