2020-04-16 Andre Vieira <[email protected]>
Backport from mainline
2019-09-25 Richard Henderson <[email protected]>
PR target/91834
* config/aarch64/lse.S (LDNM): Ensure STXR output does not
overlap the inputs.
diff --git a/libgcc/config/aarch64/lse.S b/libgcc/config/aarch64/lse.S
index
a5f6673596c73c497156a6f128799cc43b400504..c7979382ad7770b61bb1c64d32ba2395963a9d7a
100644
--- a/libgcc/config/aarch64/lse.S
+++ b/libgcc/config/aarch64/lse.S
@@ -227,8 +227,8 @@ STARTFN NAME(LDNM)
8: mov s(tmp0), s(0)
0: LDXR s(0), [x1]
OP s(tmp1), s(0), s(tmp0)
- STXR w(tmp1), s(tmp1), [x1]
- cbnz w(tmp1), 0b
+ STXR w(tmp2), s(tmp1), [x1]
+ cbnz w(tmp2), 0b
ret
ENDFN NAME(LDNM)
