; RUN: opt < %s -passes=loop-vectorize -force-vector-width=4 -S -pass-remarks-missed='loop-vectorize' 2>&1 | FileCheck %s ; C/C++ code for control flow test ; int test(int *A, int Length) { ; for (int i = 0; i < Length; i++) { ; if (A[i] > 10.0) goto end; ; A[i] = 0; ; } ; end: ; return 0; ; } ; CHECK: remark: source.cpp:5:9: loop not vectorized: could not determine number of loop iterations ; CHECK: remark: source.cpp:5:9: loop not vectorized ; CHECK: _Z4testPii ; CHECK-NOT: x i32> ; CHECK: ret target datalayout = "e-m:o-i64:64-f80:128-n8:16:32:64-S128" ; Function Attrs: nounwind optsize ssp uwtable define i32 @_Z4testPii(i32* nocapture %A, i32 %Length) #0 !dbg !4 { entry: %cmp8 = icmp sgt i32 %Length, 0, !dbg !10 br i1 %cmp8, label %for.body.preheader, label %end, !dbg !10 for.body.preheader: ; preds = %entry br label %for.body, !dbg !12 for.body: ; preds = %for.body.preheader, %if.else %indvars.iv = phi i64 [ %indvars.iv.next, %if.else ], [ 0, %for.body.preheader ] %arrayidx = getelementptr inbounds i32, i32* %A, i64 %indvars.iv, !dbg !12 %0 = load i32, i32* %arrayidx, align 4, !dbg !12, !tbaa !15 %cmp1 = icmp sgt i32 %0, 10, !dbg !12 br i1 %cmp1, label %end.loopexit, label %if.else, !dbg !12 if.else: ; preds = %for.body store i32 0, i32* %arrayidx, align 4, !dbg !19, !tbaa !15 %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1, !dbg !10 %1 = trunc i64 %indvars.iv.next to i32, !dbg !10 %cmp = icmp slt i32 %1, %Length, !dbg !10 br i1 %cmp, label %for.body, label %end.loopexit, !dbg !10 end.loopexit: ; preds = %if.else, %for.body br label %end end: ; preds = %end.loopexit, %entry ret i32 0, !dbg !20 } attributes #0 = { nounwind } !llvm.dbg.cu = !{!0} !llvm.module.flags = !{!7, !8} !llvm.ident = !{!9} !0 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, producer: "clang version 3.5.0", isOptimized: true, runtimeVersion: 6, emissionKind: LineTablesOnly, file: !1, enums: !2, retainedTypes: !2, globals: !2, imports: !2) !1 = !DIFile(filename: "source.cpp", directory: ".") !2 = !{} !4 = distinct !DISubprogram(name: "test", line: 1, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: true, unit: !0, scopeLine: 2, file: !1, scope: !5, type: !6, retainedNodes: !2) !5 = !DIFile(filename: "source.cpp", directory: ".") !6 = !DISubroutineType(types: !2) !7 = !{i32 2, !"Dwarf Version", i32 2} !8 = !{i32 2, !"Debug Info Version", i32 3} !9 = !{!"clang version 3.5.0"} !10 = !DILocation(line: 3, column: 8, scope: !11) !11 = distinct !DILexicalBlock(line: 3, column: 3, file: !1, scope: !4) !12 = !DILocation(line: 5, column: 9, scope: !13) !13 = distinct !DILexicalBlock(line: 5, column: 9, file: !1, scope: !14) !14 = distinct !DILexicalBlock(line: 4, column: 3, file: !1, scope: !11) !15 = !{!16, !16, i64 0} !16 = !{!"int", !17, i64 0} !17 = !{!"omnipotent char", !18, i64 0} !18 = !{!"Simple C/C++ TBAA"} !19 = !DILocation(line: 8, column: 7, scope: !13) !20 = !DILocation(line: 12, column: 3, scope: !4)