1 files changed, 101 insertions, 0 deletions
diff --git a/test/Transforms/LoopVectorize/no_array_bounds.ll b/test/Transforms/LoopVectorize/no_array_bounds.ll
new file mode 100644
index 0000000..a39b44f
--- /dev/null
+++ b/test/Transforms/LoopVectorize/no_array_bounds.ll
@@ -0,0 +1,101 @@
+; RUN: opt < %s -loop-vectorize -S 2>&1 | FileCheck %s
+
+; Verify warning is generated when vectorization/ interleaving is explicitly specified and fails to occur.
+; CHECK: warning: no_array_bounds.cpp:5:5: loop not vectorized: failed explicitly specified loop vectorization
+; CHECK: warning: no_array_bounds.cpp:10:5: loop not interleaved: failed explicitly specified loop interleaving
+
+;  #pragma clang loop vectorize(enable)
+;  for (int i = 0; i < number; i++) {
+;    A[B[i]]++;
+;  }
+
+;  #pragma clang loop vectorize(disable) interleave(enable)
+;  for (int i = 0; i < number; i++) {
+;    B[A[i]]++;
+;  }
+
+target datalayout = "e-m:o-i64:64-f80:128-n8:16:32:64-S128"
+
+; Function Attrs: nounwind ssp uwtable
+define void @_Z4testPiS_i(i32* nocapture %A, i32* nocapture %B, i32 %number) #0 {
+entry:
+  %cmp25 = icmp sgt i32 %number, 0, !dbg !10
+  br i1 %cmp25, label %for.body.preheader, label %for.end15, !dbg !10, !llvm.loop !12
+
+for.body.preheader:                               ; preds = %entry
+  br label %for.body, !dbg !14
+
+for.cond5.preheader:                              ; preds = %for.body
+  br i1 %cmp25, label %for.body7.preheader, label %for.end15, !dbg !16, !llvm.loop !18
+
+for.body7.preheader:                              ; preds = %for.cond5.preheader
+  br label %for.body7, !dbg !20
+
+for.body:                                         ; preds = %for.body.preheader, %for.body
+  %indvars.iv27 = phi i64 [ %indvars.iv.next28, %for.body ], [ 0, %for.body.preheader ]
+  %arrayidx = getelementptr inbounds i32* %B, i64 %indvars.iv27, !dbg !14
+  %0 = load i32* %arrayidx, align 4, !dbg !14, !tbaa !22
+  %idxprom1 = sext i32 %0 to i64, !dbg !14
+  %arrayidx2 = getelementptr inbounds i32* %A, i64 %idxprom1, !dbg !14
+  %1 = load i32* %arrayidx2, align 4, !dbg !14, !tbaa !22
+  %inc = add nsw i32 %1, 1, !dbg !14
+  store i32 %inc, i32* %arrayidx2, align 4, !dbg !14, !tbaa !22
+  %indvars.iv.next28 = add nuw nsw i64 %indvars.iv27, 1, !dbg !10
+  %lftr.wideiv29 = trunc i64 %indvars.iv.next28 to i32, !dbg !10
+  %exitcond30 = icmp eq i32 %lftr.wideiv29, %number, !dbg !10
+  br i1 %exitcond30, label %for.cond5.preheader, label %for.body, !dbg !10, !llvm.loop !12
+
+for.body7:                                        ; preds = %for.body7.preheader, %for.body7
+  %indvars.iv = phi i64 [ %indvars.iv.next, %for.body7 ], [ 0, %for.body7.preheader ]
+  %arrayidx9 = getelementptr inbounds i32* %A, i64 %indvars.iv, !dbg !20
+  %2 = load i32* %arrayidx9, align 4, !dbg !20, !tbaa !22
+  %idxprom10 = sext i32 %2 to i64, !dbg !20
+  %arrayidx11 = getelementptr inbounds i32* %B, i64 %idxprom10, !dbg !20
+  %3 = load i32* %arrayidx11, align 4, !dbg !20, !tbaa !22
+  %inc12 = add nsw i32 %3, 1, !dbg !20
+  store i32 %inc12, i32* %arrayidx11, align 4, !dbg !20, !tbaa !22
+  %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1, !dbg !16
+  %lftr.wideiv = trunc i64 %indvars.iv.next to i32, !dbg !16
+  %exitcond = icmp eq i32 %lftr.wideiv, %number, !dbg !16
+  br i1 %exitcond, label %for.end15.loopexit, label %for.body7, !dbg !16, !llvm.loop !18
+
+for.end15.loopexit:                               ; preds = %for.body7
+  br label %for.end15
+
+for.end15:                                        ; preds = %for.end15.loopexit, %entry, %for.cond5.preheader
+  ret void, !dbg !26
+}
+
+attributes #0 = { nounwind }
+
+!llvm.dbg.cu = !{!0}
+!llvm.module.flags = !{!7, !8}
+!llvm.ident = !{!9}
+
+!0 = metadata !{metadata !"0x11\004\00clang version 3.5.0\001\00\000\00\002", metadata !1, metadata !2, metadata !2, metadata !3, metadata !2, metadata !2} ; [ DW_TAG_compile_unit ]
+!1 = metadata !{metadata !"no_array_bounds.cpp", metadata !"."}
+!2 = metadata !{}
+!3 = metadata !{metadata !4}
+!4 = metadata !{metadata !"0x2e\00test\00test\00\001\000\001\000\006\00256\001\002", metadata !1, metadata !5, metadata !6, null, void (i32*, i32*, i32)* @_Z4testPiS_i, null, null, metadata !2} ; [ DW_TAG_subprogram ]
+!5 = metadata !{metadata !"0x29", metadata !1} ; [ DW_TAG_file_type ]
+!6 = metadata !{metadata !"0x15\00\000\000\000\000\000\000", i32 0, null, null, metadata !2, null, null, null} ; [ DW_TAG_subroutine_type ]
+!7 = metadata !{i32 2, metadata !"Dwarf Version", i32 2}
+!8 = metadata !{i32 2, metadata !"Debug Info Version", i32 2}
+!9 = metadata !{metadata !"clang version 3.5.0"}
+!10 = metadata !{i32 4, i32 8, metadata !11, null}
+!11 = metadata !{metadata !"0xb\004\003\000", metadata !1, metadata !4} ; [ DW_TAG_lexical_block ]
+!12 = metadata !{metadata !12, metadata !13}
+!13 = metadata !{metadata !"llvm.loop.vectorize.enable", i1 true}
+!14 = metadata !{i32 5, i32 5, metadata !15, null}
+!15 = metadata !{metadata !"0xb\004\0036\000", metadata !1, metadata !11} ; [ DW_TAG_lexical_block ]
+!16 = metadata !{i32 9, i32 8, metadata !17, null}
+!17 = metadata !{metadata !"0xb\009\003\000", metadata !1, metadata !4} ; [ DW_TAG_lexical_block ]
+!18 = metadata !{metadata !18, metadata !13, metadata !19}
+!19 = metadata !{metadata !"llvm.loop.vectorize.width", i32 1}
+!20 = metadata !{i32 10, i32 5, metadata !21, null}
+!21 = metadata !{metadata !"0xb\009\0036\000", metadata !1, metadata !17} ; [ DW_TAG_lexical_block ]
+!22 = metadata !{metadata !23, metadata !23, i64 0}
+!23 = metadata !{metadata !"int", metadata !24, i64 0}
+!24 = metadata !{metadata !"omnipotent char", metadata !25, i64 0}
+!25 = metadata !{metadata !"Simple C/C++ TBAA"}
+!26 = metadata !{i32 12, i32 1, metadata !4, null}