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1; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py UTC_ARGS: --version 32; RUN: llc < %s -mtriple=x86_64-- | FileCheck %s3 4define void @prefault(ptr noundef %range_start, ptr noundef readnone %range_end) {5; CHECK-LABEL: prefault:6; CHECK: # %bb.0: # %entry7; CHECK-NEXT: cmpq %rsi, %rdi8; CHECK-NEXT: jae .LBB0_39; CHECK-NEXT: .p2align 410; CHECK-NEXT: .LBB0_1: # %while.body11; CHECK-NEXT: # =>This Inner Loop Header: Depth=112; CHECK-NEXT: lock orb $0, (%rdi)13; CHECK-NEXT: addq $4096, %rdi # imm = 0x100014; CHECK-NEXT: cmpq %rsi, %rdi15; CHECK-NEXT: jb .LBB0_116; CHECK-NEXT: .LBB0_3: # %while.end17; CHECK-NEXT: retq18entry:19 %cmp3 = icmp ult ptr %range_start, %range_end20 br i1 %cmp3, label %while.body, label %while.end21 22while.body: ; preds = %entry, %while.body23 %start.04 = phi ptr [ %add.ptr, %while.body ], [ %range_start, %entry ]24 %0 = atomicrmw volatile or ptr %start.04, i8 0 monotonic, align 125 %add.ptr = getelementptr inbounds i8, ptr %start.04, i64 409626 %cmp = icmp ult ptr %add.ptr, %range_end27 br i1 %cmp, label %while.body, label %while.end28 29while.end: ; preds = %while.body, %entry30 ret void31}32