Fix a CPSR liveness tracking bug introduced when I converted IT block to bundle.

llvm-svn: 146805

1 files changed, 28 insertions, 0 deletions

diff --git a/llvm/test/CodeGen/Thumb2/2011-12-16-T2SizeReduceAssert.ll b/llvm/test/CodeGen/Thumb2/2011-12-16-T2SizeReduceAssert.ll
new file mode 100644
index 00000000000..dadbdc5ced2
--- /dev/null
+++ b/llvm/test/CodeGen/Thumb2/2011-12-16-T2SizeReduceAssert.ll
@@ -0,0 +1,28 @@
+; RUN: llc < %s -mtriple=thumbv7-apple-ios -relocation-model=pic -disable-fp-elim -mcpu=cortex-a8 
+
+%struct.LIST_NODE.0.16 = type { %struct.LIST_NODE.0.16*, i8* }
+
+define %struct.LIST_NODE.0.16* @list_AssocListPair(%struct.LIST_NODE.0.16* %List, i8* %Key) nounwind readonly {
+entry:
+  br label %bb3
+
+bb:                                               ; preds = %bb3
+  %Scan.0.idx7.val = load i8** undef, align 4
+  %.idx = getelementptr i8* %Scan.0.idx7.val, i32 4
+  %0 = bitcast i8* %.idx to i8**
+  %.idx.val = load i8** %0, align 4
+  %1 = icmp eq i8* %.idx.val, %Key
+  br i1 %1, label %bb5, label %bb2
+
+bb2:                                              ; preds = %bb
+  %Scan.0.idx8.val = load %struct.LIST_NODE.0.16** undef, align 4
+  br label %bb3
+
+bb3:                                              ; preds = %bb2, %entry
+  %Scan.0 = phi %struct.LIST_NODE.0.16* [ %List, %entry ], [ %Scan.0.idx8.val, %bb2 ]
+  %2 = icmp eq %struct.LIST_NODE.0.16* %Scan.0, null
+  br i1 %2, label %bb5, label %bb
+
+bb5:                                              ; preds = %bb3, %bb
+  ret %struct.LIST_NODE.0.16* null
+}