[llvm-commits] [llvm] r60994 - /llvm/trunk/test/Transforms/GVN/rle-no-phi-translate.ll

[Chris Lattner]

Author: lattner
Date: Sat Dec 13 15:04:20 2008
New Revision: 60994

URL: http://llvm.org/viewvc/llvm-project?rev=60994&view=rev
Log:
RLE isn't smart enough to eliminate this safely yet.

Added:
    llvm/trunk/test/Transforms/GVN/rle-no-phi-translate.ll

Added: llvm/trunk/test/Transforms/GVN/rle-no-phi-translate.ll
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/Transforms/GVN/rle-no-phi-translate.ll?rev=60994&view=auto

==============================================================================
--- llvm/trunk/test/Transforms/GVN/rle-no-phi-translate.ll (added)
+++ llvm/trunk/test/Transforms/GVN/rle-no-phi-translate.ll Sat Dec 13 15:04:20 2008
@@ -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
+}
+