1; NOTE: Assertions have been autogenerated by utils/update_test_checks.py 2; RUN: opt -S -passes='licm,guard-widening,licm' -verify-memoryssa -debug-pass-manager < %s 2>&1 | FileCheck %s 3 4; Main point of this test is to check the scheduling -- there should be 5; no analysis passes needed between LICM and LoopGuardWidening 6 7; CHECK: LICMPass 8; CHECK-NEXT: GuardWideningPass 9; CHECK-NEXT: LICMPass 10 11declare void @llvm.experimental.guard(i1,...) 12 13define void @iter(i32 %a, i32 %b, ptr %c_p) { 14; CHECK-LABEL: @iter( 15; CHECK-NEXT: entry: 16; CHECK-NEXT: [[B_GW_FR:%.*]] = freeze i32 [[B:%.*]] 17; CHECK-NEXT: [[COND_0:%.*]] = icmp ult i32 [[A:%.*]], 10 18; CHECK-NEXT: [[COND_1:%.*]] = icmp ult i32 [[B_GW_FR]], 10 19; CHECK-NEXT: [[WIDE_CHK:%.*]] = and i1 [[COND_0]], [[COND_1]] 20; CHECK-NEXT: call void (i1, ...) @llvm.experimental.guard(i1 [[WIDE_CHK]]) [ "deopt"() ] 21; CHECK-NEXT: [[CND:%.*]] = load i1, ptr [[C_P:%.*]], align 1 22; CHECK-NEXT: br label [[LOOP:%.*]] 23; CHECK: loop: 24; CHECK-NEXT: br i1 [[CND]], label [[LOOP]], label [[LEAVE_LOOPEXIT:%.*]] 25; CHECK: leave.loopexit: 26; CHECK-NEXT: br label [[LEAVE:%.*]] 27; CHECK: leave: 28; CHECK-NEXT: ret void 29; 30 31entry: 32 %cond_0 = icmp ult i32 %a, 10 33 call void (i1, ...) @llvm.experimental.guard(i1 %cond_0) [ "deopt"() ] 34 br label %loop 35 36loop: ; preds = %loop.preheader, %loop 37 %cond_1 = icmp ult i32 %b, 10 38 call void (i1, ...) @llvm.experimental.guard(i1 %cond_1) [ "deopt"() ] 39 %cnd = load i1, ptr %c_p 40 br i1 %cnd, label %loop, label %leave.loopexit 41 42leave.loopexit: ; preds = %loop 43 br label %leave 44 45leave: ; preds = %leave.loopexit, %entry 46 ret void 47} 48 49define void @within_loop(i32 %a, i32 %b, ptr %c_p) { 50; CHECK-LABEL: @within_loop( 51; CHECK-NEXT: entry: 52; CHECK-NEXT: [[B_GW_FR:%.*]] = freeze i32 [[B:%.*]] 53; CHECK-NEXT: [[COND_0:%.*]] = icmp ult i32 [[A:%.*]], 10 54; CHECK-NEXT: [[COND_1:%.*]] = icmp ult i32 [[B_GW_FR]], 10 55; CHECK-NEXT: [[WIDE_CHK:%.*]] = and i1 [[COND_0]], [[COND_1]] 56; CHECK-NEXT: call void (i1, ...) @llvm.experimental.guard(i1 [[WIDE_CHK]]) [ "deopt"() ] 57; CHECK-NEXT: [[CND:%.*]] = load i1, ptr [[C_P:%.*]], align 1 58; CHECK-NEXT: br label [[LOOP:%.*]] 59; CHECK: loop: 60; CHECK-NEXT: br i1 [[CND]], label [[LOOP]], label [[LEAVE_LOOPEXIT:%.*]] 61; CHECK: leave.loopexit: 62; CHECK-NEXT: br label [[LEAVE:%.*]] 63; CHECK: leave: 64; CHECK-NEXT: ret void 65; 66 67entry: 68 br label %loop 69 70loop: ; preds = %loop.preheader, %loop 71 %cond_0 = icmp ult i32 %a, 10 72 call void (i1, ...) @llvm.experimental.guard(i1 %cond_0) [ "deopt"() ] 73 %cond_1 = icmp ult i32 %b, 10 74 call void (i1, ...) @llvm.experimental.guard(i1 %cond_1) [ "deopt"() ] 75 %cnd = load i1, ptr %c_p 76 br i1 %cnd, label %loop, label %leave.loopexit 77 78leave.loopexit: ; preds = %loop 79 br label %leave 80 81leave: ; preds = %leave.loopexit, %entry 82 ret void 83} 84 85