new testcase for PR1435

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37304 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 56 insertions, 0 deletions

diff --git a/test/Transforms/LICM/2007-05-22-VolatileSink.ll b/test/Transforms/LICM/2007-05-22-VolatileSink.ll
new file mode 100644
index 0000000000..bf5d7bc092
--- /dev/null
+++ b/test/Transforms/LICM/2007-05-22-VolatileSink.ll
@@ -0,0 +1,56 @@
+; RUN: llvm-as < %s | opt -licm | llvm-dis | grep {volatile store}
+; PR1435
+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"
+target triple = "i686-apple-darwin8"
+
+define void @Transpose(i32* %DataIn, i32* %DataOut) {
+entry:
+	%buffer = alloca [64 x i32], align 16		; <[64 x i32]*> [#uses=2]
+	%"alloca point" = bitcast i32 0 to i32		; <i32> [#uses=0]
+	br label %bb6
+
+bb:		; preds = %bb6
+	%tmp2 = volatile load i32* %DataIn		; <i32> [#uses=1]
+	%tmp3 = getelementptr [64 x i32]* %buffer, i32 0, i32 %i.0		; <i32*> [#uses=1]
+	store i32 %tmp2, i32* %tmp3
+	%tmp5 = add i32 %i.0, 1		; <i32> [#uses=1]
+	br label %bb6
+
+bb6:		; preds = %bb, %entry
+	%i.0 = phi i32 [ 0, %entry ], [ %tmp5, %bb ]		; <i32> [#uses=3]
+	%tmp8 = icmp sle i32 %i.0, 63		; <i1> [#uses=1]
+	%tmp89 = zext i1 %tmp8 to i8		; <i8> [#uses=1]
+	%toBool = icmp ne i8 %tmp89, 0		; <i1> [#uses=1]
+	br i1 %toBool, label %bb, label %bb30
+
+bb12:		; preds = %bb22
+	%tmp14 = mul i32 %j.1, 8		; <i32> [#uses=1]
+	%tmp16 = add i32 %tmp14, %i.1		; <i32> [#uses=1]
+	%tmp17 = getelementptr [64 x i32]* %buffer, i32 0, i32 %tmp16		; <i32*> [#uses=1]
+	%tmp18 = load i32* %tmp17		; <i32> [#uses=1]
+	volatile store i32 %tmp18, i32* %DataOut
+	%tmp21 = add i32 %j.1, 1		; <i32> [#uses=1]
+	br label %bb22
+
+bb22:		; preds = %bb30, %bb12
+	%j.1 = phi i32 [ %tmp21, %bb12 ], [ 0, %bb30 ]		; <i32> [#uses=4]
+	%tmp24 = icmp sle i32 %j.1, 7		; <i1> [#uses=1]
+	%tmp2425 = zext i1 %tmp24 to i8		; <i8> [#uses=1]
+	%toBool26 = icmp ne i8 %tmp2425, 0		; <i1> [#uses=1]
+	br i1 %toBool26, label %bb12, label %bb27
+
+bb27:		; preds = %bb22
+	%tmp29 = add i32 %i.1, 1		; <i32> [#uses=1]
+	br label %bb30
+
+bb30:		; preds = %bb27, %bb6
+	%j.0 = phi i32 [ %j.1, %bb27 ], [ undef, %bb6 ]		; <i32> [#uses=0]
+	%i.1 = phi i32 [ %tmp29, %bb27 ], [ 0, %bb6 ]		; <i32> [#uses=3]
+	%tmp32 = icmp sle i32 %i.1, 7		; <i1> [#uses=1]
+	%tmp3233 = zext i1 %tmp32 to i8		; <i8> [#uses=1]
+	%toBool34 = icmp ne i8 %tmp3233, 0		; <i1> [#uses=1]
+	br i1 %toBool34, label %bb22, label %return
+
+return:		; preds = %bb30
+	ret void
+}