new testcase for PR1435

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

diff --git a/test/Transforms/LICM/2007-05-22-VolatileSink.ll b/test/Transforms/LICM/2007-05-22-VolatileSink.ll
new file mode 100644 (file)
index 0000000..bf5d7bc
--- /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
+}