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1; NOTE: Assertions have been autogenerated by utils/update_test_checks.py2; RUN: opt -S -passes=loop-predication < %s 2>&1 | FileCheck %s3 4declare void @llvm.experimental.deoptimize.isVoid(...)5 6define void @test_01(i1 %cond) {7; CHECK-LABEL: @test_01(8; CHECK-NEXT: bb:9; CHECK-NEXT: [[INST:%.*]] = call i1 @llvm.experimental.widenable.condition()10; CHECK-NEXT: [[TMP0:%.*]] = freeze i1 true11; CHECK-NEXT: [[TMP1:%.*]] = and i1 [[TMP0]], [[INST]]12; CHECK-NEXT: br label [[LOOP:%.*]]13; CHECK: unreached:14; CHECK-NEXT: unreachable15; CHECK: loop:16; CHECK-NEXT: [[INST3:%.*]] = phi i32 [ 0, [[BB:%.*]] ], [ [[INST4:%.*]], [[BACKEDGE:%.*]] ]17; CHECK-NEXT: [[INST4]] = add nsw i32 [[INST3]], 118; CHECK-NEXT: br i1 [[COND:%.*]], label [[BACKEDGE]], label [[GUARD_BLOCK:%.*]]19; CHECK: normal_ret:20; CHECK-NEXT: ret void21; CHECK: backedge:22; CHECK-NEXT: [[ASSUME_COND:%.*]] = phi i1 [ [[INST9:%.*]], [[GUARD_BLOCK]] ], [ true, [[LOOP]] ]23; CHECK-NEXT: call void @llvm.assume(i1 [[ASSUME_COND]])24; CHECK-NEXT: [[INST7:%.*]] = icmp sgt i32 [[INST3]], 13725; CHECK-NEXT: br i1 [[INST7]], label [[UNREACHED:%.*]], label [[LOOP]]26; CHECK: guard_block:27; CHECK-NEXT: [[INST9]] = icmp ult i32 [[INST4]], 1000028; CHECK-NEXT: br i1 [[TMP1]], label [[BACKEDGE]], label [[DEOPT:%.*]]29; CHECK: deopt:30; CHECK-NEXT: call void (...) @llvm.experimental.deoptimize.isVoid(i32 13) [ "deopt"() ]31; CHECK-NEXT: ret void32; CHECK: done:33; CHECK-NEXT: ret void34;35bb:36 %inst = call i1 @llvm.experimental.widenable.condition()37 br label %loop38 39unreached: ; preds = %backedge40 unreachable41 42loop: ; preds = %backedge, %bb43 %inst3 = phi i32 [ 0, %bb ], [ %inst4, %backedge ]44 %inst4 = add nsw i32 %inst3, 145 br i1 %cond, label %backedge, label %guard_block46 47normal_ret: ; preds = %loop48 ret void49 50backedge: ; preds = %guard_block, %loop51 %inst7 = icmp sgt i32 %inst3, 13752 br i1 %inst7, label %unreached, label %loop53 54guard_block: ; preds = %loop, %loop55 %inst9 = icmp ult i32 %inst4, 1000056 %inst10 = and i1 %inst9, %inst57 br i1 %inst10, label %backedge, label %deopt58 59deopt: ; preds = %guard_block60 call void (...) @llvm.experimental.deoptimize.isVoid(i32 13) [ "deopt"() ]61 ret void62 63done: ; preds = %loop64 ret void65}66 67declare i1 @llvm.experimental.widenable.condition()68