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-rw-r--r--test/Transforms/InstCombine/2009-02-25-CrashZeroSizeArray.ll38
1 files changed, 38 insertions, 0 deletions
diff --git a/test/Transforms/InstCombine/2009-02-25-CrashZeroSizeArray.ll b/test/Transforms/InstCombine/2009-02-25-CrashZeroSizeArray.ll
new file mode 100644
index 000000000000..c59c5edcf2d1
--- /dev/null
+++ b/test/Transforms/InstCombine/2009-02-25-CrashZeroSizeArray.ll
@@ -0,0 +1,38 @@
+; RUN: llvm-as < %s | opt -instcombine | llvm-dis
+; PR3667
+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-f80:32:32"
+target triple = "i386-pc-linux-gnu"
+
+define void @_ada_c32001b(i32 %tmp5) {
+entry:
+ %max289 = select i1 false, i32 %tmp5, i32 0 ; <i32> [#uses=1]
+ %tmp6 = mul i32 %max289, 4 ; <i32> [#uses=1]
+ %tmp7 = alloca i8, i32 0 ; <i8*> [#uses=1]
+ %tmp8 = bitcast i8* %tmp7 to [0 x [0 x i32]]* ; <[0 x [0 x i32]]*> [#uses=1]
+ %tmp11 = load i32* null, align 1 ; <i32> [#uses=1]
+ %tmp12 = icmp eq i32 %tmp11, 3 ; <i1> [#uses=1]
+ %tmp13 = zext i1 %tmp12 to i8 ; <i8> [#uses=1]
+ %tmp14 = ashr i32 %tmp6, 2 ; <i32> [#uses=1]
+ %tmp15 = bitcast [0 x [0 x i32]]* %tmp8 to i8* ; <i8*> [#uses=1]
+ %tmp16 = mul i32 %tmp14, 4 ; <i32> [#uses=1]
+ %tmp17 = mul i32 1, %tmp16 ; <i32> [#uses=1]
+ %tmp18 = getelementptr i8* %tmp15, i32 %tmp17 ; <i8*> [#uses=1]
+ %tmp19 = bitcast i8* %tmp18 to [0 x i32]* ; <[0 x i32]*> [#uses=1]
+ %tmp20 = bitcast [0 x i32]* %tmp19 to i32* ; <i32*> [#uses=1]
+ %tmp21 = getelementptr i32* %tmp20, i32 0 ; <i32*> [#uses=1]
+ %tmp22 = load i32* %tmp21, align 1 ; <i32> [#uses=1]
+ %tmp23 = icmp eq i32 %tmp22, 4 ; <i1> [#uses=1]
+ %tmp24 = zext i1 %tmp23 to i8 ; <i8> [#uses=1]
+ %toBool709 = icmp ne i8 %tmp13, 0 ; <i1> [#uses=1]
+ %toBool710 = icmp ne i8 %tmp24, 0 ; <i1> [#uses=1]
+ %tmp25 = and i1 %toBool709, %toBool710 ; <i1> [#uses=1]
+ %tmp26 = zext i1 %tmp25 to i8 ; <i8> [#uses=1]
+ %toBool711 = icmp ne i8 %tmp26, 0 ; <i1> [#uses=1]
+ br i1 %toBool711, label %a, label %b
+
+a: ; preds = %entry
+ ret void
+
+b: ; preds = %entry
+ ret void
+}