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1; NOTE: Assertions have been autogenerated by utils/update_test_checks.py2; RUN: opt -mtriple=x86_64-linux -codegenprepare -S < %s | FileCheck %s3 4declare { i64, i1 } @llvm.uadd.with.overflow.i64(i64, i64)5 6define i32 @test_01(ptr %p, i64 %len, i32 %x) {7; CHECK-LABEL: @test_01(8; CHECK-NEXT: entry:9; CHECK-NEXT: br label [[LOOP:%.*]]10; CHECK: loop:11; CHECK-NEXT: [[IV:%.*]] = phi i64 [ [[MATH:%.*]], [[BACKEDGE:%.*]] ], [ [[LEN:%.*]], [[ENTRY:%.*]] ]12; CHECK-NEXT: [[TMP0:%.*]] = call { i64, i1 } @llvm.uadd.with.overflow.i64(i64 [[IV]], i64 1)13; CHECK-NEXT: [[MATH]] = extractvalue { i64, i1 } [[TMP0]], 014; CHECK-NEXT: [[OV:%.*]] = extractvalue { i64, i1 } [[TMP0]], 115; CHECK-NEXT: br i1 [[OV]], label [[EXIT:%.*]], label [[BACKEDGE]]16; CHECK: backedge:17; CHECK-NEXT: [[SUNKADDR3:%.*]] = mul i64 [[MATH]], 418; CHECK-NEXT: [[SUNKADDR4:%.*]] = getelementptr i8, ptr [[P:%.*]], i64 [[SUNKADDR3]]19; CHECK-NEXT: [[LOADED:%.*]] = load atomic i32, ptr [[SUNKADDR4]] unordered, align 420; CHECK-NEXT: [[COND_2:%.*]] = icmp eq i32 [[LOADED]], [[X:%.*]]21; CHECK-NEXT: br i1 [[COND_2]], label [[FAILURE:%.*]], label [[LOOP]]22; CHECK: exit:23; CHECK-NEXT: ret i32 -124; CHECK: failure:25; CHECK-NEXT: unreachable26;27entry:28 br label %loop29 30loop: ; preds = %backedge, %entry31 %iv = phi i64 [ %math, %backedge ], [ %len, %entry ]32 %0 = call { i64, i1 } @llvm.uadd.with.overflow.i64(i64 %iv, i64 1)33 %math = extractvalue { i64, i1 } %0, 034 %ov = extractvalue { i64, i1 } %0, 135 br i1 %ov, label %exit, label %backedge36 37backedge: ; preds = %loop38 %sunkaddr = mul i64 %iv, 439 %sunkaddr1 = getelementptr i8, ptr %p, i64 %sunkaddr40 %sunkaddr2 = getelementptr i8, ptr %sunkaddr1, i64 441 %loaded = load atomic i32, ptr %sunkaddr2 unordered, align 442 %cond_2 = icmp eq i32 %loaded, %x43 br i1 %cond_2, label %failure, label %loop44 45exit: ; preds = %loop46 ret i32 -147 48failure: ; preds = %backedge49 unreachable50}51