diff options
Diffstat (limited to 'test/Transforms/LoopVectorize/incorrect-dom-info.ll')
-rw-r--r-- | test/Transforms/LoopVectorize/incorrect-dom-info.ll | 142 |
1 files changed, 142 insertions, 0 deletions
diff --git a/test/Transforms/LoopVectorize/incorrect-dom-info.ll b/test/Transforms/LoopVectorize/incorrect-dom-info.ll new file mode 100644 index 0000000..624ee7e --- /dev/null +++ b/test/Transforms/LoopVectorize/incorrect-dom-info.ll @@ -0,0 +1,142 @@ +; This test is based on one of benchmarks from SPEC2006. It exposes a bug with +; incorrect updating of the dom-tree. +; RUN: opt < %s -loop-vectorize -verify-dom-info +target datalayout = "e-m:o-i64:64-f80:128-n8:16:32:64-S128" + +@PL_utf8skip = external constant [0 x i8] + +; Function Attrs: nounwind ssp uwtable +define void @Perl_pp_quotemeta() #0 { + %len = alloca i64, align 8 + br i1 undef, label %2, label %1 + +; <label>:1 ; preds = %0 + br label %3 + +; <label>:2 ; preds = %0 + br label %3 + +; <label>:3 ; preds = %2, %1 + br i1 undef, label %34, label %4 + +; <label>:4 ; preds = %3 + br i1 undef, label %5, label %6 + +; <label>:5 ; preds = %4 + br label %6 + +; <label>:6 ; preds = %5, %4 + br i1 undef, label %7, label %8 + +; <label>:7 ; preds = %6 + br label %8 + +; <label>:8 ; preds = %7, %6 + br i1 undef, label %.preheader, label %9 + +.preheader: ; preds = %9, %8 + br i1 undef, label %.loopexit, label %.lr.ph + +; <label>:9 ; preds = %8 + br i1 undef, label %thread-pre-split.preheader, label %.preheader + +thread-pre-split.preheader: ; preds = %9 + br i1 undef, label %thread-pre-split._crit_edge, label %.lr.ph21 + +.thread-pre-split.loopexit_crit_edge: ; preds = %19 + %scevgep.sum = xor i64 %umax, -1 + %scevgep45 = getelementptr i8* %d.020, i64 %scevgep.sum + br label %thread-pre-split.loopexit + +thread-pre-split.loopexit: ; preds = %11, %.thread-pre-split.loopexit_crit_edge + %d.1.lcssa = phi i8* [ %scevgep45, %.thread-pre-split.loopexit_crit_edge ], [ %d.020, %11 ] + br i1 false, label %thread-pre-split._crit_edge, label %.lr.ph21 + +.lr.ph21: ; preds = %26, %thread-pre-split.loopexit, %thread-pre-split.preheader + %d.020 = phi i8* [ undef, %26 ], [ %d.1.lcssa, %thread-pre-split.loopexit ], [ undef, %thread-pre-split.preheader ] + %10 = phi i64 [ %28, %26 ], [ undef, %thread-pre-split.loopexit ], [ undef, %thread-pre-split.preheader ] + br i1 undef, label %11, label %22 + +; <label>:11 ; preds = %.lr.ph21 + %12 = getelementptr inbounds [0 x i8]* @PL_utf8skip, i64 0, i64 undef + %13 = load i8* %12, align 1 + %14 = zext i8 %13 to i64 + %15 = icmp ugt i64 %14, %10 + %. = select i1 %15, i64 %10, i64 %14 + br i1 undef, label %thread-pre-split.loopexit, label %.lr.ph28 + +.lr.ph28: ; preds = %11 + %16 = xor i64 %10, -1 + %17 = xor i64 %14, -1 + %18 = icmp ugt i64 %16, %17 + %umax = select i1 %18, i64 %16, i64 %17 + br label %19 + +; <label>:19 ; preds = %19, %.lr.ph28 + %ulen.126 = phi i64 [ %., %.lr.ph28 ], [ %20, %19 ] + %20 = add i64 %ulen.126, -1 + %21 = icmp eq i64 %20, 0 + br i1 %21, label %.thread-pre-split.loopexit_crit_edge, label %19 + +; <label>:22 ; preds = %.lr.ph21 + br i1 undef, label %26, label %23 + +; <label>:23 ; preds = %22 + br i1 undef, label %26, label %24 + +; <label>:24 ; preds = %23 + br i1 undef, label %26, label %25 + +; <label>:25 ; preds = %24 + br label %26 + +; <label>:26 ; preds = %25, %24, %23, %22 + %27 = load i64* %len, align 8 + %28 = add i64 %27, -1 + br i1 undef, label %thread-pre-split._crit_edge, label %.lr.ph21 + +thread-pre-split._crit_edge: ; preds = %26, %thread-pre-split.loopexit, %thread-pre-split.preheader + br label %.loopexit + +.lr.ph: ; preds = %33, %.preheader + br i1 undef, label %29, label %thread-pre-split5 + +; <label>:29 ; preds = %.lr.ph + br i1 undef, label %33, label %30 + +; <label>:30 ; preds = %29 + br i1 undef, label %33, label %31 + +thread-pre-split5: ; preds = %.lr.ph + br i1 undef, label %33, label %31 + +; <label>:31 ; preds = %thread-pre-split5, %30 + br i1 undef, label %33, label %32 + +; <label>:32 ; preds = %31 + br label %33 + +; <label>:33 ; preds = %32, %31, %thread-pre-split5, %30, %29 + br i1 undef, label %.loopexit, label %.lr.ph + +.loopexit: ; preds = %33, %thread-pre-split._crit_edge, %.preheader + br label %35 + +; <label>:34 ; preds = %3 + br label %35 + +; <label>:35 ; preds = %34, %.loopexit + br i1 undef, label %37, label %36 + +; <label>:36 ; preds = %35 + br label %37 + +; <label>:37 ; preds = %36, %35 + ret void +} + +attributes #0 = { nounwind ssp uwtable "less-precise-fpmad"="false" "no-frame-pointer-elim"="true" "no-frame-pointer-elim-non-leaf" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "stack-protector-buffer-size"="8" "unsafe-fp-math"="false" "use-soft-float"="false" } + +!llvm.ident = !{!0} + +!0 = metadata !{metadata !"clang version 3.6.0 "} |