new testcase for PR1495

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37452 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/test/CodeGen/X86/2007-06-05-LSR-Dominator.ll b/test/CodeGen/X86/2007-06-05-LSR-Dominator.ll
new file mode 100644 (file)
index 0000000..3e7776a
--- /dev/null
+++ b/test/CodeGen/X86/2007-06-05-LSR-Dominator.ll
@@ -0,0 +1,129 @@
+; PR1495
+; RUN: llvm-as < %s | llc -march=x86
+
+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"
+target triple = "i686-pc-linux-gnu"
+       %struct.AVRational = type { i32, i32 }
+       %struct.FFTComplex = type { float, float }
+       %struct.FFTContext = type { i32, i32, i16*, %struct.FFTComplex*, %struct.FFTComplex*, void (%struct.FFTContext*, %struct.FFTComplex*)*, void (%struct.MDCTContext*, float*, float*, float*)* }
+       %struct.MDCTContext = type { i32, i32, float*, float*, %struct.FFTContext }
+       %struct.Minima = type { i32, i32, i32, i32 }
+       %struct.codebook_t = type { i32, i8*, i32*, i32, float, float, i32, i32, i32*, float*, float* }
+       %struct.floor_class_t = type { i32, i32, i32, i32* }
+       %struct.floor_t = type { i32, i32*, i32, %struct.floor_class_t*, i32, i32, i32, %struct.Minima* }
+       %struct.mapping_t = type { i32, i32*, i32*, i32*, i32, i32*, i32* }
+       %struct.residue_t = type { i32, i32, i32, i32, i32, i32, [8 x i8]*, [2 x float]* }
+       %struct.venc_context_t = type { i32, i32, [2 x i32], [2 x %struct.MDCTContext], [2 x float*], i32, float*, float*, float*, float*, float, i32, %struct.codebook_t*, i32, %struct.floor_t*, i32, %struct.residue_t*, i32, %struct.mapping_t*, i32, %struct.AVRational* }
+
+define fastcc i32 @put_main_header(%struct.venc_context_t* %venc, i8** %out) {
+entry:
+       br i1 false, label %bb1820, label %bb288.bb148_crit_edge
+
+bb288.bb148_crit_edge:         ; preds = %entry
+       ret i32 0
+
+cond_next1712:         ; preds = %bb1820.bb1680_crit_edge
+       ret i32 0
+
+bb1817:                ; preds = %bb1820.bb1680_crit_edge
+       br label %bb1820
+
+bb1820:                ; preds = %bb1817, %entry
+       %pb.1.50 = phi i32 [ %tmp1693, %bb1817 ], [ 8, %entry ]         ; <i32> [#uses=3]
+       br i1 false, label %bb2093, label %bb1820.bb1680_crit_edge
+
+bb1820.bb1680_crit_edge:               ; preds = %bb1820
+       %tmp1693 = add i32 %pb.1.50, 8          ; <i32> [#uses=2]
+       %tmp1702 = icmp slt i32 %tmp1693, 0             ; <i1> [#uses=1]
+       br i1 %tmp1702, label %cond_next1712, label %bb1817
+
+bb2093:                ; preds = %bb1820
+       %tmp2102 = add i32 %pb.1.50, 65         ; <i32> [#uses=0]
+       %tmp2236 = add i32 %pb.1.50, 72         ; <i32> [#uses=1]
+       %tmp2237 = sdiv i32 %tmp2236, 8         ; <i32> [#uses=2]
+       br i1 false, label %bb2543, label %bb2536.bb2396_crit_edge
+
+bb2536.bb2396_crit_edge:               ; preds = %bb2093
+       ret i32 0
+
+bb2543:                ; preds = %bb2093
+       br i1 false, label %cond_next2576, label %bb2690
+
+cond_next2576:         ; preds = %bb2543
+       ret i32 0
+
+bb2682:                ; preds = %bb2690
+       ret i32 0
+
+bb2690:                ; preds = %bb2543
+       br i1 false, label %bb2682, label %bb2698
+
+bb2698:                ; preds = %bb2690
+       br i1 false, label %cond_next2726, label %bb2831
+
+cond_next2726:         ; preds = %bb2698
+       ret i32 0
+
+bb2831:                ; preds = %bb2698
+       br i1 false, label %cond_next2859, label %bb2964
+
+cond_next2859:         ; preds = %bb2831
+       br i1 false, label %bb2943, label %cond_true2866
+
+cond_true2866:         ; preds = %cond_next2859
+       br i1 false, label %cond_true2874, label %cond_false2897
+
+cond_true2874:         ; preds = %cond_true2866
+       ret i32 0
+
+cond_false2897:                ; preds = %cond_true2866
+       ret i32 0
+
+bb2943:                ; preds = %cond_next2859
+       ret i32 0
+
+bb2964:                ; preds = %bb2831
+       br i1 false, label %cond_next2997, label %bb4589
+
+cond_next2997:         ; preds = %bb2964
+       ret i32 0
+
+bb3103:                ; preds = %bb4589
+       ret i32 0
+
+bb4589:                ; preds = %bb2964
+       br i1 false, label %bb3103, label %bb4597
+
+bb4597:                ; preds = %bb4589
+       br i1 false, label %cond_next4630, label %bb4744
+
+cond_next4630:         ; preds = %bb4597
+       br i1 false, label %bb4744, label %cond_true4724
+
+cond_true4724:         ; preds = %cond_next4630
+       br i1 false, label %bb4736, label %bb7531
+
+bb4736:                ; preds = %cond_true4724
+       ret i32 0
+
+bb4744:                ; preds = %cond_next4630, %bb4597
+       ret i32 0
+
+bb7531:                ; preds = %cond_true4724
+       %v_addr.023.0.i6 = add i32 %tmp2237, -255               ; <i32> [#uses=1]
+       br label %bb.i14
+
+bb.i14:                ; preds = %bb.i14, %bb7531
+       %n.021.0.i8 = phi i32 [ 0, %bb7531 ], [ %indvar.next, %bb.i14 ]         ; <i32> [#uses=2]
+       %tmp..i9 = mul i32 %n.021.0.i8, -255            ; <i32> [#uses=1]
+       %tmp5.i11 = add i32 %v_addr.023.0.i6, %tmp..i9          ; <i32> [#uses=1]
+       %tmp10.i12 = icmp ugt i32 %tmp5.i11, 254                ; <i1> [#uses=1]
+       %indvar.next = add i32 %n.021.0.i8, 1           ; <i32> [#uses=1]
+       br i1 %tmp10.i12, label %bb.i14, label %bb12.loopexit.i18
+
+bb12.loopexit.i18:             ; preds = %bb.i14
+       call void @llvm.memcpy.i32( i8* null, i8* null, i32 %tmp2237, i32 1 )
+       ret i32 0
+}
+
+declare void @llvm.memcpy.i32(i8*, i8*, i32, i32)