RLE isn't smart enough to eliminate this safely yet.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60994 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/test/Transforms/GVN/rle-no-phi-translate.ll b/test/Transforms/GVN/rle-no-phi-translate.ll
new file mode 100644 (file)
index 0000000..b7f0dbc
--- /dev/null
+++ b/test/Transforms/GVN/rle-no-phi-translate.ll
@@ -0,0 +1,21 @@
+; RUN: llvm-as < %s | opt -gvn | llvm-dis | grep load
+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-f80:128:128"
+target triple = "i386-apple-darwin7"
+
+define i32 @g(i32* %b, i32* %c) nounwind {
+entry:
+        store i32 1, i32* %b
+        store i32 2, i32* %c
+        
+       %t1 = icmp eq i32* %b, null             ; <i1> [#uses=1]
+       br i1 %t1, label %bb, label %bb2
+
+bb:            ; preds = %entry
+       br label %bb2
+
+bb2:           ; preds = %bb1, %bb
+       %c_addr.0 = phi i32* [ %b, %entry ], [ %c, %bb ]                ; <i32*> [#uses=1]
+       %cv = load i32* %c_addr.0, align 4              ; <i32> [#uses=1]
+       ret i32 %cv
+}
+