Testcase for r50770.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50771 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/test/Transforms/LoopDeletion/2008-05-06-Phi.ll b/test/Transforms/LoopDeletion/2008-05-06-Phi.ll
new file mode 100644 (file)
index 0000000..4a6ad64
--- /dev/null
+++ b/test/Transforms/LoopDeletion/2008-05-06-Phi.ll
@@ -0,0 +1,109 @@
+; RUN: llvm-as < %s | opt -inline -tailduplicate -instcombine -jump-threading -licm -loop-unswitch -instcombine -indvars -loop-deletion -gvn -simplifycfg -verify 
+
+target datalayout = "e-p:32:32:32-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-f32:32:32-f64:32:64-v64:64:64-v128:128:128-a0:0:64-f80:128:128"
+target triple = "i386-apple-darwin9"
+       %struct.BF_BitstreamElement = type { i32, i16 }
+       %struct.BF_BitstreamPart = type { i32, %struct.BF_BitstreamElement* }
+       %struct.BF_PartHolder = type { i32, %struct.BF_BitstreamPart* }
+       %struct.Bit_stream_struc = type { i8*, i32, %struct.FILE*, i8*, i32, i32, i32, i32 }
+       %struct.FILE = type { i8*, i32, i32, i16, i16, %struct.__sbuf, i32, i8*, i32 (i8*)*, i32 (i8*, i8*, i32)*, i64 (i8*, i64, i32)*, i32 (i8*, i8*, i32)*, %struct.__sbuf, %struct.__sFILEX*, i32, [3 x i8], [1 x i8], %struct.__sbuf, i32, i64 }
+       %struct.III_scalefac_t = type { [22 x i32], [13 x [3 x i32]] }
+       %struct.III_side_info_t = type { i32, i32, i32, [2 x [4 x i32]], [2 x %struct.anon] }
+       %struct.__sFILEX = type opaque
+       %struct.__sbuf = type { i8*, i32 }
+       %struct.anon = type { [2 x %struct.gr_info_ss] }
+       %struct.gr_info = type { i32, i32, i32, i32, i32, i32, i32, i32, [3 x i32], [3 x i32], i32, i32, i32, i32, i32, i32, i32, i32, i32, i32*, [4 x i32] }
+       %struct.gr_info_ss = type { %struct.gr_info }
+       %struct.lame_global_flags = type { i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i8*, i8*, i32, i32, float, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, float, i32, i32, i32, float, float, float, float, i32, i32, i32, i32, i32, i32, i32, i32 }
+@scaleFactorsPH = external global [2 x [2 x %struct.BF_PartHolder*]]           ; <[2 x [2 x %struct.BF_PartHolder*]]*> [#uses=1]
+@slen1_tab = external constant [16 x i32]              ; <[16 x i32]*> [#uses=1]
+
+declare %struct.BF_PartHolder* @BF_addElement(%struct.BF_PartHolder*, %struct.BF_BitstreamElement*) nounwind 
+
+define %struct.BF_PartHolder* @BF_addEntry(%struct.BF_PartHolder* %thePH, i32 %value, i32 %length) nounwind  {
+entry:
+       %myElement = alloca %struct.BF_BitstreamElement         ; <%struct.BF_BitstreamElement*> [#uses=2]
+       %tmp1 = getelementptr %struct.BF_BitstreamElement* %myElement, i32 0, i32 0             ; <i32*> [#uses=1]
+       store i32 %value, i32* %tmp1, align 8
+       %tmp7 = icmp eq i32 %length, 0          ; <i1> [#uses=1]
+       br i1 %tmp7, label %bb13, label %bb
+
+bb:            ; preds = %entry
+       %tmp10 = call %struct.BF_PartHolder* @BF_addElement( %struct.BF_PartHolder* %thePH, %struct.BF_BitstreamElement* %myElement ) nounwind          ; <%struct.BF_PartHolder*> [#uses=1]
+       ret %struct.BF_PartHolder* %tmp10
+
+bb13:          ; preds = %entry
+       ret %struct.BF_PartHolder* %thePH
+}
+
+define void @III_format_bitstream(%struct.lame_global_flags* %gfp, i32 %bitsPerFrame, [2 x [576 x i32]]* %l3_enc, %struct.III_side_info_t* %l3_side, [2 x %struct.III_scalefac_t]* %scalefac, %struct.Bit_stream_struc* %in_bs) nounwind  {
+entry:
+       call fastcc void @encodeMainData( %struct.lame_global_flags* %gfp, [2 x [576 x i32]]* %l3_enc, %struct.III_side_info_t* %l3_side, [2 x %struct.III_scalefac_t]* %scalefac ) nounwind 
+       unreachable
+}
+
+define internal fastcc void @encodeMainData(%struct.lame_global_flags* %gfp, [2 x [576 x i32]]* %l3_enc, %struct.III_side_info_t* %si, [2 x %struct.III_scalefac_t]* %scalefac) nounwind  {
+entry:
+       %tmp69 = getelementptr %struct.lame_global_flags* %gfp, i32 0, i32 43           ; <i32*> [#uses=1]
+       %tmp70 = load i32* %tmp69, align 4              ; <i32> [#uses=1]
+       %tmp71 = icmp eq i32 %tmp70, 1          ; <i1> [#uses=1]
+       br i1 %tmp71, label %bb352, label %bb498
+
+bb113:         ; preds = %bb132
+       %tmp123 = getelementptr [2 x %struct.III_scalefac_t]* %scalefac, i32 0, i32 0, i32 1, i32 %sfb.0, i32 %window.0         ; <i32*> [#uses=1]
+       %tmp124 = load i32* %tmp123, align 4            ; <i32> [#uses=1]
+       %tmp126 = load %struct.BF_PartHolder** %tmp80, align 4          ; <%struct.BF_PartHolder*> [#uses=1]
+       %tmp128 = call %struct.BF_PartHolder* @BF_addEntry( %struct.BF_PartHolder* %tmp126, i32 %tmp124, i32 %tmp93 ) nounwind          ; <%struct.BF_PartHolder*> [#uses=1]
+       store %struct.BF_PartHolder* %tmp128, %struct.BF_PartHolder** %tmp80, align 4
+       %tmp131 = add i32 %window.0, 1          ; <i32> [#uses=1]
+       br label %bb132
+
+bb132:         ; preds = %bb140, %bb113
+       %window.0 = phi i32 [ %tmp131, %bb113 ], [ 0, %bb140 ]          ; <i32> [#uses=3]
+       %tmp134 = icmp slt i32 %window.0, 3             ; <i1> [#uses=1]
+       br i1 %tmp134, label %bb113, label %bb137
+
+bb137:         ; preds = %bb132
+       %tmp139 = add i32 %sfb.0, 1             ; <i32> [#uses=1]
+       br label %bb140
+
+bb140:         ; preds = %bb341, %bb137
+       %sfb.0 = phi i32 [ %tmp139, %bb137 ], [ 0, %bb341 ]             ; <i32> [#uses=3]
+       %tmp142 = icmp slt i32 %sfb.0, 6                ; <i1> [#uses=1]
+       br i1 %tmp142, label %bb132, label %bb174
+
+bb166:         ; preds = %bb174
+       %tmp160 = load %struct.BF_PartHolder** %tmp80, align 4          ; <%struct.BF_PartHolder*> [#uses=1]
+       %tmp162 = call %struct.BF_PartHolder* @BF_addEntry( %struct.BF_PartHolder* %tmp160, i32 0, i32 0 ) nounwind             ; <%struct.BF_PartHolder*> [#uses=0]
+       unreachable
+
+bb174:         ; preds = %bb140
+       %tmp176 = icmp slt i32 6, 12            ; <i1> [#uses=1]
+       br i1 %tmp176, label %bb166, label %bb341
+
+bb341:         ; preds = %bb352, %bb174
+       %tmp80 = getelementptr [2 x [2 x %struct.BF_PartHolder*]]* @scaleFactorsPH, i32 0, i32 0, i32 0         ; <%struct.BF_PartHolder**> [#uses=3]
+       %tmp92 = getelementptr [16 x i32]* @slen1_tab, i32 0, i32 0             ; <i32*> [#uses=1]
+       %tmp93 = load i32* %tmp92, align 4              ; <i32> [#uses=1]
+       br label %bb140
+
+bb352:         ; preds = %entry
+       %tmp354 = icmp slt i32 0, 2             ; <i1> [#uses=1]
+       br i1 %tmp354, label %bb341, label %return
+
+bb498:         ; preds = %entry
+       ret void
+
+return:                ; preds = %bb352
+       ret void
+}
+
+define void @getframebits(%struct.lame_global_flags* %gfp, i32* %bitsPerFrame, i32* %mean_bits) nounwind  {
+entry:
+       unreachable
+}
+
+define i32 @lame_encode_buffer(%struct.lame_global_flags* %gfp, i16* %buffer_l, i16* %buffer_r, i32 %nsamples, i8* %mp3buf, i32 %mp3buf_size) nounwind  {
+entry:
+       unreachable
+}