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