# RUN: llc -start-after branch-folder -stop-after branch-folder -o /dev/null %s | FileCheck %s # This test ensures that the MIR parser parses the jump table info and jump # table operands correctly. --- | define i32 @test_jumptable(i32 %in) { entry: switch i32 %in, label %def [ i32 0, label %lbl1 i32 1, label %lbl2 i32 2, label %lbl3 i32 3, label %lbl4 ] def: ret i32 0 lbl1: ret i32 1 lbl2: ret i32 2 lbl3: ret i32 4 lbl4: ret i32 8 } define i32 @test_jumptable2(i32 %in) { entry: switch i32 %in, label %def [ i32 0, label %lbl1 i32 1, label %lbl2 i32 2, label %lbl3 i32 3, label %lbl4 ] def: ret i32 0 lbl1: ret i32 1 lbl2: ret i32 2 lbl3: ret i32 4 lbl4: ret i32 8 } ... --- name: test_jumptable # CHECK: jumpTable: # CHECK-NEXT: kind: label-difference32 # CHECK-NEXT: entries: # CHECK-NEXT: - id: 0 # CHECK-NEXT: blocks: [ '%bb.3.lbl1', '%bb.4.lbl2', '%bb.5.lbl3', '%bb.6.lbl4' ] # CHECK_NEXT: body: jumpTable: kind: label-difference32 entries: - id: 0 blocks: [ '%bb.3.lbl1', '%bb.4.lbl2', '%bb.5.lbl3', '%bb.6.lbl4' ] body: - id: 0 name: entry successors: [ '%bb.2.def', '%bb.1.entry' ] instructions: - '%eax = MOV32rr %edi, implicit-def %rax' - 'CMP32ri8 %edi, 3, implicit-def %eflags' - 'JA_1 %bb.2.def, implicit %eflags' - id: 1 name: entry successors: [ '%bb.3.lbl1', '%bb.4.lbl2', '%bb.5.lbl3', '%bb.6.lbl4' ] instructions: # CHECK: %rcx = LEA64r %rip, 1, _, %jump-table.0, _ - '%rcx = LEA64r %rip, 1, _, %jump-table.0, _' - '%rax = MOVSX64rm32 %rcx, 4, %rax, 0, _' - '%rax = ADD64rr %rax, %rcx, implicit-def %eflags' - 'JMP64r %rax' - id: 2 name: def instructions: - '%eax = MOV32r0 implicit-def %eflags' - 'RETQ %eax' - id: 3 name: lbl1 instructions: - '%eax = MOV32ri 1' - 'RETQ %eax' - id: 4 name: lbl2 instructions: - '%eax = MOV32ri 2' - 'RETQ %eax' - id: 5 name: lbl3 instructions: - '%eax = MOV32ri 4' - 'RETQ %eax' - id: 6 name: lbl4 instructions: - '%eax = MOV32ri 8' - 'RETQ %eax' ... --- name: test_jumptable2 jumpTable: kind: label-difference32 entries: - id: 1 blocks: [ '%bb.3.lbl1', '%bb.4.lbl2', '%bb.5.lbl3', '%bb.6.lbl4' ] body: - id: 0 name: entry successors: [ '%bb.2.def', '%bb.1.entry' ] instructions: - '%eax = MOV32rr %edi, implicit-def %rax' - 'CMP32ri8 %edi, 3, implicit-def %eflags' - 'JA_1 %bb.2.def, implicit %eflags' - id: 1 name: entry successors: [ '%bb.3.lbl1', '%bb.4.lbl2', '%bb.5.lbl3', '%bb.6.lbl4' ] instructions: # Verify that the printer will use an id of 0 for this jump table: # CHECK: %rcx = LEA64r %rip, 1, _, %jump-table.0, _ - '%rcx = LEA64r %rip, 1, _, %jump-table.1, _' - '%rax = MOVSX64rm32 %rcx, 4, %rax, 0, _' - '%rax = ADD64rr %rax, %rcx, implicit-def %eflags' - 'JMP64r %rax' - id: 2 name: def instructions: - '%eax = MOV32r0 implicit-def %eflags' - 'RETQ %eax' - id: 3 name: lbl1 instructions: - '%eax = MOV32ri 1' - 'RETQ %eax' - id: 4 name: lbl2 instructions: - '%eax = MOV32ri 2' - 'RETQ %eax' - id: 5 name: lbl3 instructions: - '%eax = MOV32ri 4' - 'RETQ %eax' - id: 6 name: lbl4 instructions: - '%eax = MOV32ri 8' - 'RETQ %eax' ...