| ; RUN: opt < %s -S -passes=loop-rotate -o - -verify-loop-info -verify-dom-info -verify-memoryssa | FileCheck %s |
| |
| ; PR5502 |
| define void @z80_do_opcodes() nounwind { |
| entry: |
| br label %while.cond |
| |
| while.cond: ; preds = %end_opcode, %entry |
| br label %while.body |
| |
| while.body: ; preds = %while.cond |
| br label %indirectgoto |
| |
| run_opcode: ; preds = %indirectgoto |
| %tmp276 = load i8, ptr undef ; <i8> [#uses=1] |
| br label %indirectgoto |
| |
| if.else295: ; preds = %divide_late |
| br label %end_opcode |
| |
| end_opcode: ; preds = %indirectgoto, %sw.default42406, %sw.default, %if.else295 |
| %opcode.2 = phi i8 [ %opcode.0, %indirectgoto ], [ 0, %sw.default42406 ], [ undef, %sw.default ], [ %opcode.0, %if.else295 ] ; <i8> [#uses=0] |
| switch i32 undef, label %while.cond [ |
| i32 221, label %sw.bb11691 |
| i32 253, label %sw.bb30351 |
| ] |
| |
| sw.bb11691: ; preds = %end_opcode |
| br label %sw.default |
| |
| sw.default: ; preds = %sw.bb11691 |
| br label %end_opcode |
| |
| sw.bb30351: ; preds = %end_opcode |
| br label %sw.default42406 |
| |
| sw.default42406: ; preds = %sw.bb30351 |
| br label %end_opcode |
| |
| indirectgoto: ; preds = %run_opcode, %while.body |
| %opcode.0 = phi i8 [ undef, %while.body ], [ %tmp276, %run_opcode ] ; <i8> [#uses=2] |
| indirectbr ptr undef, [label %run_opcode, label %if.else295, label %end_opcode] |
| } |
| |
| ; CHECK-LABEL: @foo |
| define void @foo(i1 %a, i1 %b, ptr %c) { |
| ; CHECK: entry |
| ; CHECK-NEXT: br i1 %a, label %return, label %preheader |
| entry: |
| br i1 %a, label %return, label %preheader |
| |
| ; CHECK: preheader: |
| ; CHECK-NEXT: br label %header |
| preheader: |
| br label %header |
| |
| ; CHECK: header: |
| ; CHECK-NEXT: br i1 %b, label %return, label %body |
| header: |
| br i1 %b, label %return, label %body |
| |
| ; CHECK: body: |
| ; CHECK-NEXT: indirectbr ptr %c, [label %return, label %latch] |
| body: |
| indirectbr ptr %c, [label %return, label %latch] |
| |
| ; CHECK: latch: |
| ; CHECK-NEXT: br label %header |
| latch: |
| br label %header |
| |
| return: |
| ret void |
| } |