1; REQUIRES: asserts 2; RUN: opt -passes=loop-distribute -enable-loop-distribute \ 3; RUN: -debug-only=loop-distribute -disable-output 2>&1 %s | FileCheck %s 4 5define void @f(ptr noalias %a, ptr noalias %b, ptr noalias %c, ptr noalias %d, i64 %stride) { 6; CHECK-LABEL: LDist: Checking a loop in 'f' from f.c:5:2 7entry: 8 br label %for.body 9 10for.body: ; preds = %for.body, %entry 11 %ind = phi i64 [ 0, %entry ], [ %add, %for.body ] 12 %gep.a = getelementptr inbounds i32, ptr %a, i64 %ind 13 %load.a = load i32, ptr %gep.a, align 4 14 %gep.b = getelementptr inbounds i32, ptr %b, i64 %ind 15 %load.b = load i32, ptr %gep.b, align 4 16 %mul.a = mul i32 %load.b, %load.a 17 %add = add nuw nsw i64 %ind, 1 18 %gep.a.plus4 = getelementptr inbounds i32, ptr %a, i64 %add 19 store i32 %mul.a, ptr %gep.a.plus4, align 4 20 %gep.d = getelementptr inbounds i32, ptr %d, i64 %ind 21 %loadD = load i32, ptr %gep.d, align 4 22 %mul = mul i64 %ind, %stride 23 %gep.strided.a = getelementptr inbounds i32, ptr %a, i64 %mul 24 %load.strided.a = load i32, ptr %gep.strided.a, align 4 25 %mul.c = mul i32 %loadD, %load.strided.a 26 %gep.c = getelementptr inbounds i32, ptr %c, i64 %ind 27 store i32 %mul.c, ptr %gep.c, align 4 28 %exitcond = icmp eq i64 %add, 20 29 br i1 %exitcond, label %exit, label %for.body, !dbg !2 30 31exit: ; preds = %for.body 32 ret void 33} 34 35!llvm.module.flags = !{!5, !6, !7} 36 37!0 = !DIFile(filename: "f.c", directory: "/") 38!1 = distinct !DISubprogram(name: "f", scope: !0, file: !0, unit: !4) 39!2 = !DILocation(line: 5, column: 2, scope: !1) 40!4 = distinct !DICompileUnit(language: DW_LANG_C99, file: !0, producer: "clang") 41!5 = !{i32 1, !"Debug Info Version", i32 3} 42!6 = !{i32 2, !"Dwarf Version", i32 2} 43!7 = !{i32 1, !"PIC Level", i32 2} 44