# RUN: llc -march=x86-64 -run-pass none -o - %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', '%bb.4', '%bb.5', '%bb.6' ] # CHECK-NEXT: body: jumpTable: kind: label-difference32 entries: - id: 0 blocks: [ '%bb.3', '%bb.4', '%bb.5', '%bb.6' ] body: | bb.0.entry: successors: %bb.2, %bb.1 $eax = MOV32rr $edi, implicit-def $rax CMP32ri8 $edi, 3, implicit-def $eflags JCC_1 %bb.2, 7, implicit $eflags bb.1.entry: successors: %bb.3, %bb.4, %bb.5, %bb.6 ; CHECK: $rcx = LEA64r $rip, 1, $noreg, %jump-table.0, $noreg $rcx = LEA64r $rip, 1, _, %jump-table.0, _ $rax = MOVSX64rm32 $rcx, 4, $rax, 0, _ $rax = ADD64rr $rax, $rcx, implicit-def $eflags JMP64r $rax bb.2.def: $eax = MOV32r0 implicit-def $eflags RET64 $eax bb.3.lbl1: $eax = MOV32ri 1 RET64 $eax bb.4.lbl2: $eax = MOV32ri 2 RET64 $eax bb.5.lbl3: $eax = MOV32ri 4 RET64 $eax bb.6.lbl4: $eax = MOV32ri 8 RET64 $eax ... --- name: test_jumptable2 jumpTable: kind: label-difference32 entries: - id: 1 blocks: [ '%bb.3', '%bb.4', '%bb.5', '%bb.6' ] body: | bb.0.entry: successors: %bb.2, %bb.1 $eax = MOV32rr $edi, implicit-def $rax CMP32ri8 $edi, 3, implicit-def $eflags JCC_1 %bb.2, 7, implicit $eflags bb.1.entry: successors: %bb.3, %bb.4, %bb.5, %bb.6 ; Verify that the printer will use an id of 0 for this jump table: ; CHECK: $rcx = LEA64r $rip, 1, $noreg, %jump-table.0, $noreg $rcx = LEA64r $rip, 1, _, %jump-table.1, _ $rax = MOVSX64rm32 $rcx, 4, $rax, 0, _ $rax = ADD64rr $rax, $rcx, implicit-def $eflags JMP64r $rax bb.2.def: $eax = MOV32r0 implicit-def $eflags RET64 $eax bb.3.lbl1: $eax = MOV32ri 1 RET64 $eax bb.4.lbl2: $eax = MOV32ri 2 RET64 $eax bb.5.lbl3: $eax = MOV32ri 4 RET64 $eax bb.6.lbl4: $eax = MOV32ri 8 RET64 $eax ...