New testcase, unanalyzed.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2938 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 74 insertions, 0 deletions

diff --git a/test/Transforms/ADCE/2002-07-17-PHIAssertion.ll b/test/Transforms/ADCE/2002-07-17-PHIAssertion.ll
new file mode 100644
index 0000000000..5c386ff625
--- /dev/null
+++ b/test/Transforms/ADCE/2002-07-17-PHIAssertion.ll
@@ -0,0 +1,74 @@
+; This testcase was extracted from the gzip SPEC benchmark
+;
+; RUN: as < %s | opt -adce
+
+%inptr = internal uninitialized global uint		; <uint*> [#uses=2]
+%outcnt = internal uninitialized global uint		; <uint*> [#uses=1]
+%bb = internal uninitialized global ulong		; <ulong*> [#uses=1]
+%bk = internal uninitialized global uint		; <uint*> [#uses=5]
+%hufts = internal uninitialized global uint		; <uint*> [#uses=2]
+
+implementation   ; Functions:
+
+int %inflate() {
+bb0:					;[#uses=0]
+	%e = alloca int		; <int*> [#uses=2]
+	br label %bb1
+
+bb1:					;[#uses=2]
+	store uint 0, uint* %outcnt
+	store uint 0, uint* %bk
+	store ulong 0, ulong* %bb
+	br label %bb2
+
+bb2:					;[#uses=2]
+	%reg128 = phi uint [ %reg130, %bb6 ], [ 0, %bb1 ]		; <uint> [#uses=2]
+	store uint 0, uint* %hufts
+	%reg236 = call int %inflate_block( int* %e )		; <int> [#uses=2]
+	%cond237 = seteq int %reg236, 0		; <bool> [#uses=1]
+	br bool %cond237, label %bb4, label %bb3
+
+bb3:					;[#uses=1]
+	ret int %reg236
+
+bb4:					;[#uses=2]
+	%reg117 = load uint* %hufts		; <uint> [#uses=2]
+	%cond241 = setle uint %reg117, %reg128		; <bool> [#uses=1]
+	br bool %cond241, label %bb6, label %bb5
+
+bb5:					;[#uses=2]
+	br label %bb6
+
+bb6:					;[#uses=3]
+	%reg130 = phi uint [ %reg117, %bb5 ], [ %reg128, %bb4 ]		; <uint> [#uses=1]
+	%reg118 = load int* %e, uint 0		; <int> [#uses=1]
+	%cond244 = seteq int %reg118, 0		; <bool> [#uses=1]
+	br bool %cond244, label %bb2, label %bb7
+
+bb7:					;[#uses=1]
+	%reg126 = load uint* %bk		; <uint> [#uses=1]
+	%cond247 = setle uint %reg126, 7		; <bool> [#uses=1]
+	br bool %cond247, label %bb9, label %bb8
+
+bb8:					;[#uses=2]
+	%reg120 = load uint* %bk		; <uint> [#uses=1]
+	%reg121 = add uint %reg120, 4294967288		; <uint> [#uses=1]
+	store uint %reg121, uint* %bk
+	%reg122 = load uint* %inptr		; <uint> [#uses=1]
+	%reg123 = add uint %reg122, 4294967295		; <uint> [#uses=1]
+	store uint %reg123, uint* %inptr
+	%reg119 = load uint* %bk		; <uint> [#uses=1]
+	%cond256 = setgt uint %reg119, 7		; <bool> [#uses=1]
+	br bool %cond256, label %bb8, label %bb9
+
+bb9:					;[#uses=2]
+	call void %flush_window( )
+	ret int 0
+
+bb10:					;[#uses=0]
+	ret int 42
+}
+
+declare void %flush_window()
+
+declare int %inflate_block(int*)