1*9880d681SAndroid Build Coastguard Worker# RUN: llc -march=x86-64 -start-after branch-folder -stop-after branch-folder -o - %s | FileCheck %s 2*9880d681SAndroid Build Coastguard Worker# This test ensures that the MIR parser parses null register operands correctly. 3*9880d681SAndroid Build Coastguard Worker 4*9880d681SAndroid Build Coastguard Worker--- | 5*9880d681SAndroid Build Coastguard Worker 6*9880d681SAndroid Build Coastguard Worker define i32 @deref(i32* %p) { 7*9880d681SAndroid Build Coastguard Worker entry: 8*9880d681SAndroid Build Coastguard Worker %a = load i32, i32* %p 9*9880d681SAndroid Build Coastguard Worker ret i32 %a 10*9880d681SAndroid Build Coastguard Worker } 11*9880d681SAndroid Build Coastguard Worker 12*9880d681SAndroid Build Coastguard Worker... 13*9880d681SAndroid Build Coastguard Worker--- 14*9880d681SAndroid Build Coastguard Worker# CHECK: name: deref 15*9880d681SAndroid Build Coastguard Workername: deref 16*9880d681SAndroid Build Coastguard Workerbody: | 17*9880d681SAndroid Build Coastguard Worker bb.0.entry: 18*9880d681SAndroid Build Coastguard Worker ; CHECK: %eax = MOV32rm %rdi, 1, _, 0, _ 19*9880d681SAndroid Build Coastguard Worker ; CHECK-NEXT: RETQ %eax 20*9880d681SAndroid Build Coastguard Worker %eax = MOV32rm %rdi, 1, _, 0, %noreg 21*9880d681SAndroid Build Coastguard Worker RETQ %eax 22*9880d681SAndroid Build Coastguard Worker... 23