; NOTE: Assertions have been autogenerated by utils/update_test_checks.py ; RUN: opt < %s -simple-loop-unswitch-inject-invariant-conditions=true -passes='loop(simple-loop-unswitch,loop-instsimplify)' -S | FileCheck %s define void @test() { ; CHECK-LABEL: @test( ; CHECK-NEXT: bb: ; CHECK-NEXT: [[TMP:%.*]] = call i1 @llvm.experimental.widenable.condition() ; CHECK-NEXT: [[TMP1:%.*]] = load atomic i32, ptr addrspace(1) poison unordered, align 8 ; CHECK-NEXT: [[TMP2:%.*]] = load atomic i32, ptr addrspace(1) poison unordered, align 8 ; CHECK-NEXT: br i1 [[TMP]], label [[BB_SPLIT:%.*]], label [[BB3_SPLIT_US:%.*]] ; CHECK: bb.split: ; CHECK-NEXT: br label [[BB3:%.*]] ; CHECK: bb3: ; CHECK-NEXT: br label [[BB3_SPLIT:%.*]] ; CHECK: bb3.split.us: ; CHECK-NEXT: br label [[BB4_US:%.*]] ; CHECK: bb4.us: ; CHECK-NEXT: [[TMP5_US:%.*]] = phi i32 [ poison, [[BB3_SPLIT_US]] ] ; CHECK-NEXT: [[TMP6_US:%.*]] = phi i32 [ poison, [[BB3_SPLIT_US]] ] ; CHECK-NEXT: [[TMP7_US:%.*]] = add nuw nsw i32 [[TMP6_US]], 2 ; CHECK-NEXT: [[TMP8_US:%.*]] = icmp ult i32 [[TMP7_US]], [[TMP2]] ; CHECK-NEXT: br i1 [[TMP8_US]], label [[BB9_US:%.*]], label [[BB16_SPLIT_US:%.*]], !prof [[PROF0:![0-9]+]] ; CHECK: bb9.us: ; CHECK-NEXT: br label [[BB17_SPLIT_US:%.*]] ; CHECK: bb16.split.us: ; CHECK-NEXT: br label [[BB16:%.*]] ; CHECK: bb17.split.us: ; CHECK-NEXT: br label [[BB17:%.*]] ; CHECK: bb3.split: ; CHECK-NEXT: br label [[BB4:%.*]] ; CHECK: bb4: ; CHECK-NEXT: [[TMP5:%.*]] = phi i32 [ poison, [[BB3_SPLIT]] ], [ [[TMP14:%.*]], [[BB13:%.*]] ] ; CHECK-NEXT: [[TMP6:%.*]] = phi i32 [ poison, [[BB3_SPLIT]] ], [ [[TMP5]], [[BB13]] ] ; CHECK-NEXT: [[TMP7:%.*]] = add nuw nsw i32 [[TMP6]], 2 ; CHECK-NEXT: [[TMP8:%.*]] = icmp ult i32 [[TMP7]], [[TMP2]] ; CHECK-NEXT: br i1 [[TMP8]], label [[BB9:%.*]], label [[BB16_SPLIT:%.*]], !prof [[PROF0]] ; CHECK: bb9: ; CHECK-NEXT: [[TMP10:%.*]] = icmp ult i32 [[TMP7]], [[TMP1]] ; CHECK-NEXT: br i1 [[TMP10]], label [[BB12:%.*]], label [[BB17_SPLIT:%.*]], !prof [[PROF0]] ; CHECK: bb12: ; CHECK-NEXT: br i1 true, label [[BB15:%.*]], label [[BB13]] ; CHECK: bb13: ; CHECK-NEXT: [[TMP14]] = add nuw nsw i32 [[TMP5]], 1 ; CHECK-NEXT: br label [[BB4]] ; CHECK: bb15: ; CHECK-NEXT: br label [[BB3]] ; CHECK: bb16.split: ; CHECK-NEXT: br label [[BB16]] ; CHECK: bb16: ; CHECK-NEXT: ret void ; CHECK: bb17.split: ; CHECK-NEXT: br label [[BB17]] ; CHECK: bb17: ; CHECK-NEXT: ret void ; bb: %tmp = call i1 @llvm.experimental.widenable.condition() %tmp1 = load atomic i32, ptr addrspace(1) poison unordered, align 8 %tmp2 = load atomic i32, ptr addrspace(1) poison unordered, align 8 br label %bb3 bb3: ; preds = %bb15, %bb br label %bb4 bb4: ; preds = %bb13, %bb3 %tmp5 = phi i32 [ poison, %bb3 ], [ %tmp14, %bb13 ] %tmp6 = phi i32 [ poison, %bb3 ], [ %tmp5, %bb13 ] %tmp7 = add nuw nsw i32 %tmp6, 2 %tmp8 = icmp ult i32 %tmp7, %tmp2 br i1 %tmp8, label %bb9, label %bb16, !prof !0 bb9: ; preds = %bb4 %tmp10 = icmp ult i32 %tmp7, %tmp1 %tmp11 = and i1 %tmp10, %tmp br i1 %tmp11, label %bb12, label %bb17, !prof !0 bb12: ; preds = %bb9 br i1 poison, label %bb15, label %bb13 bb13: ; preds = %bb12 %tmp14 = add nuw nsw i32 %tmp5, 1 br label %bb4 bb15: ; preds = %bb12 br label %bb3 bb16: ; preds = %bb4 ret void bb17: ; preds = %bb9 ret void } ; Function Attrs: nocallback nofree nosync nounwind speculatable willreturn memory(inaccessiblemem: readwrite) declare i1 @llvm.experimental.widenable.condition() !0 = !{!"branch_weights", i32 1048576, i32 1}