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authorAlexander Monakov <amonakov@ispras.ru>2020-08-11 21:11:16 +0300
committerRich Felker <dalias@aerifal.cx>2020-08-11 14:43:20 -0400
commit59b64ff686cef2a87e9552658b2c8d2531f87176 (patch)
tree7baac904e666314dbe3bbf0fbb1697e476952c73 /src/setjmp/x86_64/longjmp.s
parentc6a6fe4ccdba92c518dfbf337cda1bf0f697527d (diff)
downloadmusl-59b64ff686cef2a87e9552658b2c8d2531f87176.tar.gz
setjmp: optimize x86 longjmp epilogues
Diffstat (limited to 'src/setjmp/x86_64/longjmp.s')
-rw-r--r--src/setjmp/x86_64/longjmp.s6
1 files changed, 2 insertions, 4 deletions
diff --git a/src/setjmp/x86_64/longjmp.s b/src/setjmp/x86_64/longjmp.s
index e709acad..bb88afa1 100644
--- 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 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 */