1; REQUIRES: asserts 2; RUN: opt -passes='print<access-info>' -debug-only=loop-accesses \ 3; RUN: -disable-output -S %s 2>&1 | FileCheck %s 4 5define void @negative_step(ptr nocapture %A) { 6; CHECK-LABEL: LAA: Checking a loop in 'negative_step' from negative_step.c:5:2 7entry: 8 %A.plus.1 = getelementptr i32, ptr %A, i64 1 9 br label %loop 10 11loop: 12 %iv = phi i64 [ 1022, %entry ], [ %iv.next, %loop ] 13 %gep.A = getelementptr inbounds i32, ptr %A, i64 %iv 14 %l = load i32, ptr %gep.A, align 4 15 %add = add nsw i32 %l, 1 16 %gep.A.plus.1 = getelementptr i32, ptr %A.plus.1, i64 %iv 17 store i32 %add, ptr %gep.A.plus.1, align 4 18 %iv.next = add nsw i64 %iv, -1 19 %cmp.not = icmp eq i64 %iv, 0 20 br i1 %cmp.not, label %exit, label %loop, !dbg !2 21 22exit: 23 ret void 24} 25 26!llvm.module.flags = !{!5, !6, !7} 27 28!0 = !DIFile(filename: "negative_step.c", directory: "/") 29!1 = distinct !DISubprogram(name: "negative_step", scope: !0, file: !0, unit: !4) 30!2 = !DILocation(line: 5, column: 2, scope: !1) 31!4 = distinct !DICompileUnit(language: DW_LANG_C99, file: !0, producer: "clang") 32!5 = !{i32 1, !"Debug Info Version", i32 3} 33!6 = !{i32 2, !"Dwarf Version", i32 2} 34!7 = !{i32 1, !"PIC Level", i32 2} 35