It's not necessary to do rounding for alloca operations when the requested
alignment is equal to the stack alignment.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40004 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/test/CodeGen/Generic/2006-09-06-SwitchLowering.ll b/test/CodeGen/Generic/2006-09-06-SwitchLowering.ll
new file mode 100644
index 0000000..2b12926
--- /dev/null
+++ b/test/CodeGen/Generic/2006-09-06-SwitchLowering.ll
@@ -0,0 +1,96 @@
+; RUN: llvm-upgrade < %s | llvm-as | llc
+
+void %foo() {
+ br label %cond_true813.i
+
+cond_true813.i: ; preds = %0
+ br bool false, label %cond_true818.i, label %cond_next1146.i
+
+cond_true818.i: ; preds = %cond_true813.i
+ br bool false, label %recog_memoized.exit52, label %cond_next1146.i
+
+recog_memoized.exit52: ; preds = %cond_true818.i
+ switch int 0, label %bb886.i.preheader [
+ int 0, label %bb907.i
+ int 44, label %bb866.i
+ int 103, label %bb874.i
+ int 114, label %bb874.i
+ ]
+
+bb857.i: ; preds = %bb886.i, %bb866.i
+ %tmp862.i494.24 = phi sbyte* [ null, %bb866.i ], [ %tmp862.i494.26, %bb886.i ] ; <sbyte*> [#uses=4]
+ switch int 0, label %bb886.i.preheader [
+ int 0, label %bb907.i
+ int 44, label %bb866.i
+ int 103, label %bb874.i
+ int 114, label %bb874.i
+ ]
+
+bb866.i.loopexit: ; preds = %bb874.i
+ br label %bb866.i
+
+bb866.i.loopexit31: ; preds = %cond_true903.i
+ br label %bb866.i
+
+bb866.i: ; preds = %bb866.i.loopexit31, %bb866.i.loopexit, %bb857.i, %recog_memoized.exit52
+ br bool false, label %bb907.i, label %bb857.i
+
+bb874.i.preheader.loopexit: ; preds = %cond_true903.i, %cond_true903.i
+ ret void
+
+bb874.i: ; preds = %bb857.i, %bb857.i, %recog_memoized.exit52, %recog_memoized.exit52
+ %tmp862.i494.25 = phi sbyte* [ %tmp862.i494.24, %bb857.i ], [ %tmp862.i494.24, %bb857.i ], [ undef, %recog_memoized.exit52 ], [ undef, %recog_memoized.exit52 ] ; <sbyte*> [#uses=1]
+ switch int 0, label %bb886.i.preheader.loopexit [
+ int 0, label %bb907.i
+ int 44, label %bb866.i.loopexit
+ int 103, label %bb874.i.backedge
+ int 114, label %bb874.i.backedge
+ ]
+
+bb874.i.backedge: ; preds = %bb874.i, %bb874.i
+ ret void
+
+bb886.i.preheader.loopexit: ; preds = %bb874.i
+ ret void
+
+bb886.i.preheader: ; preds = %bb857.i, %recog_memoized.exit52
+ %tmp862.i494.26 = phi sbyte* [ undef, %recog_memoized.exit52 ], [ %tmp862.i494.24, %bb857.i ] ; <sbyte*> [#uses=1]
+ br label %bb886.i
+
+bb886.i: ; preds = %cond_true903.i, %bb886.i.preheader
+ br bool false, label %bb857.i, label %cond_true903.i
+
+cond_true903.i: ; preds = %bb886.i
+ switch int 0, label %bb886.i [
+ int 0, label %bb907.i
+ int 44, label %bb866.i.loopexit31
+ int 103, label %bb874.i.preheader.loopexit
+ int 114, label %bb874.i.preheader.loopexit
+ ]
+
+bb907.i: ; preds = %cond_true903.i, %bb874.i, %bb866.i, %bb857.i, %recog_memoized.exit52
+ %tmp862.i494.0 = phi sbyte* [ %tmp862.i494.24, %bb857.i ], [ null, %bb866.i ], [ undef, %recog_memoized.exit52 ], [ %tmp862.i494.25, %bb874.i ], [ null, %cond_true903.i ] ; <sbyte*> [#uses=1]
+ br bool false, label %cond_next1146.i, label %cond_true910.i
+
+cond_true910.i: ; preds = %bb907.i
+ ret void
+
+cond_next1146.i: ; preds = %bb907.i, %cond_true818.i, %cond_true813.i
+ %tmp862.i494.1 = phi sbyte* [ %tmp862.i494.0, %bb907.i ], [ undef, %cond_true818.i ], [ undef, %cond_true813.i ] ; <sbyte*> [#uses=0]
+ ret void
+
+bb2060.i: ; No predecessors!
+ br bool false, label %cond_true2064.i, label %bb2067.i
+
+cond_true2064.i: ; preds = %bb2060.i
+ unreachable
+
+bb2067.i: ; preds = %bb2060.i
+ ret void
+
+cond_next3473: ; No predecessors!
+ ret void
+
+cond_next3521: ; No predecessors!
+ ret void
+}