Testcase for PR2032.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47113 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/test/Transforms/GVN/2008-02-13-NewPHI.ll b/test/Transforms/GVN/2008-02-13-NewPHI.ll
new file mode 100644 (file)
index 0000000..d3e3251
--- /dev/null
+++ b/test/Transforms/GVN/2008-02-13-NewPHI.ll
@@ -0,0 +1,22 @@
+; RUN: llvm-as < %s | opt -anders-aa -gvn
+; PR2032
+
+define i32 @sscal(i32 %n, double %sa1, float* %sx, i32 %incx) {
+entry:
+       %sx_addr = alloca float*                ; <float**> [#uses=3]
+       store float* %sx, float** %sx_addr, align 4
+       br label %bb33
+
+bb:            ; preds = %bb33
+       %tmp27 = load float** %sx_addr, align 4         ; <float*> [#uses=1]
+       store float 0.000000e+00, float* %tmp27, align 4
+       store float* null, float** %sx_addr, align 4
+       br label %bb33
+
+bb33:          ; preds = %bb, %entry
+       br i1 false, label %bb, label %return
+
+return:                ; preds = %bb33
+       %retval59 = load i32* null, align 4             ; <i32> [#uses=1]
+       ret i32 %retval59
+}