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1; NOTE: Assertions have been autogenerated by utils/update_test_checks.py2; RUN: opt -passes='default<O2>' -S < %s | FileCheck %s3 4define void @PR47852(ptr noundef %d, i32 noundef %c) {5; CHECK-LABEL: @PR47852(6; CHECK-NEXT: entry:7; CHECK-NEXT: [[CMP_NOT1:%.*]] = icmp eq i32 [[C:%.*]], 08; CHECK-NEXT: br i1 [[CMP_NOT1]], label [[WHILE_END:%.*]], label [[WHILE_BODY_PREHEADER:%.*]]9; CHECK: while.body.preheader:10; CHECK-NEXT: [[TMP0:%.*]] = zext i32 [[C]] to i6411; CHECK-NEXT: tail call void @llvm.memset.p0.i64(ptr align 1 [[D:%.*]], i8 0, i64 [[TMP0]], i1 false)12; CHECK-NEXT: br label [[WHILE_END]]13; CHECK: while.end:14; CHECK-NEXT: ret void15;16entry:17 br label %while.cond18 19while.cond:20 %c.addr.0 = phi i32 [ %c, %entry ], [ %dec, %while.body ]21 %d.addr.0 = phi ptr [ %d, %entry ], [ %incdec.ptr, %while.body ]22 %dec = add i32 %c.addr.0, -123 %cmp = icmp ugt i32 %c.addr.0, 024 br i1 %cmp, label %while.body, label %while.end25 26while.body:27 %incdec.ptr = getelementptr inbounds i8, ptr %d.addr.0, i32 128 store i8 0, ptr %d.addr.0, align 129 br label %while.cond30 31while.end:32 ret void33}34