From 3f101bb1e74ff1be6e1a84425642e6adef2c75f0 Mon Sep 17 00:00:00 2001 From: Chris Lattner Date: Sat, 13 Dec 2008 21:04:20 +0000 Subject: [PATCH] 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 --- test/Transforms/GVN/rle-no-phi-translate.ll | 21 +++++++++++++++++++++ 1 file changed, 21 insertions(+) create mode 100644 test/Transforms/GVN/rle-no-phi-translate.ll diff --git a/test/Transforms/GVN/rle-no-phi-translate.ll b/test/Transforms/GVN/rle-no-phi-translate.ll new file mode 100644 index 00000000000..b7f0dbc23a6 --- /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 ; [#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 ] ; [#uses=1] + %cv = load i32* %c_addr.0, align 4 ; [#uses=1] + ret i32 %cv +} + -- 2.34.1