8255550: x86: Assembler::cmpq(Address dst, Register src) encoding is …

…incorrect Reviewed-by: kvn, eosterlund
openjdk · Oct 29, 2020 · 9e5bbff · 9e5bbff · bridgekeeper · Oct 29, 2020
1 parent 5b18558
commit 9e5bbff
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/src/hotspot/cpu/x86/assembler_x86.cpp b/src/hotspot/cpu/x86/assembler_x86.cpp
@@ -9803,7 +9803,7 @@ void Assembler::cmpq(Register dst, int32_t imm32) {
 
 void Assembler::cmpq(Address dst, Register src) {
   InstructionMark im(this);
-  emit_int16(get_prefixq(dst, src), 0x3B);
+  emit_int16(get_prefixq(dst, src), 0x39);
   emit_operand(src, dst);
 }