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-rw-r--r--test/Transforms/GVN/2007-07-26-PhiErasure.ll28
1 files changed, 28 insertions, 0 deletions
diff --git a/test/Transforms/GVN/2007-07-26-PhiErasure.ll b/test/Transforms/GVN/2007-07-26-PhiErasure.ll
new file mode 100644
index 0000000..52c5b8e
--- /dev/null
+++ b/test/Transforms/GVN/2007-07-26-PhiErasure.ll
@@ -0,0 +1,28 @@
+; RUN: llvm-as < %s | opt -gvn | llvm-dis | not grep {tmp298316 =}
+
+ %struct..0anon = type { 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.__sFILEX = type opaque
+ %struct.__sbuf = type { i8*, i32 }
+ %struct.rtx_def = type { i16, i8, i8, [1 x %struct..0anon] }
+@n_spills = external global i32 ; <i32*> [#uses=2]
+
+define i32 @reload(%struct.rtx_def* %first, i32 %global, %struct.FILE* %dumpfile) {
+cond_next2835.1: ; preds = %cond_next2861
+ %tmp2922 = load i32* @n_spills, align 4 ; <i32> [#uses=0]
+ br label %bb2928
+
+bb2928: ; preds = %cond_next2835.1, %cond_next2943
+ br i1 false, label %cond_next2943, label %cond_true2935
+
+cond_true2935: ; preds = %bb2928
+ br label %cond_next2943
+
+cond_next2943: ; preds = %cond_true2935, %bb2928
+ br i1 false, label %bb2982.preheader, label %bb2928
+
+bb2982.preheader: ; preds = %cond_next2943
+ %tmp298316 = load i32* @n_spills, align 4 ; <i32> [#uses=0]
+ ret i32 0
+
+}