X-Git-Url: https://notaz.gp2x.de/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=deps%2Flightrec%2Foptimizer.c;h=792f35c82a69c3b4b433f2cc54d573d84f985b5b;hb=f99193c2c2ec0ab56636773949fae34d847d91b0;hp=90b21398c519ced986d59c7802ea94366e2321da;hpb=2b1b10dd333f8b525b90a15468824aae0ff4eb2f;p=pcsx_rearmed.git

diff --git a/deps/lightrec/optimizer.c b/deps/lightrec/optimizer.c
index 90b21398..792f35c8 100644
--- a/deps/lightrec/optimizer.c
+++ b/deps/lightrec/optimizer.c
@@ -299,6 +299,9 @@ static bool reg_is_dead(const struct opcode *list, unsigned int offset, u8 reg)
 		if (opcode_writes_register(list[i].c, reg))
 			return true;
 
+		if (is_syscall(list[i].c))
+			return false;
+
 		if (has_delay_slot(list[i].c)) {
 			if (op_flag_no_ds(list[i].flags) ||
 			    opcode_reads_register(list[i + 1].c, reg))