From: Chris Lattner <sabre@nondot.org>
Date: Wed, 10 Mar 2010 21:42:42 +0000 (+0000)
Subject: move PR6576 here.
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=6663670359428183427b7601f3eb9916c08e6068;p=oota-llvm.git

move PR6576 here.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98194 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/lib/Target/README.txt b/lib/Target/README.txt
index 4fd46a8b28a..052a5756da9 100644
--- a/lib/Target/README.txt
+++ b/lib/Target/README.txt
@@ -1819,3 +1819,27 @@ int test2(int mainType, int subType) {
 }
 
 //===---------------------------------------------------------------------===//
+
+The following test case (from PR6576):
+
+define i32 @mul(i32 %a, i32 %b) nounwind readnone {
+entry:
+ %cond1 = icmp eq i32 %b, 0                      ; <i1> [#uses=1]
+ br i1 %cond1, label %exit, label %bb.nph
+bb.nph:                                           ; preds = %entry
+ %tmp = mul i32 %b, %a                           ; <i32> [#uses=1]
+ ret i32 %tmp
+exit:                                             ; preds = %entry
+ ret i32 0
+}
+
+could be reduced to:
+
+define i32 @mul(i32 %a, i32 %b) nounwind readnone {
+entry:
+ %tmp = mul i32 %b, %a
+ ret i32 %tmp
+}
+
+//===---------------------------------------------------------------------===//
+