From 7ddcd35d6beb99118f0b960329b304f9e9a2bf58 Mon Sep 17 00:00:00 2001
From: Rafael Espindola <rafael.espindola@gmail.com>
Date: Mon, 26 Mar 2012 01:44:11 +0000
Subject: Use the new range metadata in computeMaskedBits and add a new
 optimization to instruction simplify that lets us remove an and when loding a
 boolean value.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@153423 91177308-0d34-0410-b5e6-96231b3b80d8
---
 test/Transforms/InstSimplify/pr12251.ll | 15 +++++++++++++++
 1 file changed, 15 insertions(+)
 create mode 100644 test/Transforms/InstSimplify/pr12251.ll

(limited to 'test/Transforms')

diff --git a/test/Transforms/InstSimplify/pr12251.ll b/test/Transforms/InstSimplify/pr12251.ll
new file mode 100644
index 0000000..f180f9f
--- /dev/null
+++ b/test/Transforms/InstSimplify/pr12251.ll
@@ -0,0 +1,15 @@
+; RUN: opt < %s -instsimplify -S | FileCheck %s
+
+define zeroext i1 @_Z3fooPb(i8* nocapture %x) {
+entry:
+  %a = load i8* %x, align 1, !range !0
+  %b = and i8 %a, 1
+  %tobool = icmp ne i8 %b, 0
+  ret i1 %tobool
+}
+
+; CHECK: %a = load i8* %x, align 1, !range !0
+; CHECK-NEXT: %tobool = icmp ne i8 %a, 0
+; CHECK-NEXT: ret i1 %tobool
+
+!0 = metadata !{i8 0, i8 2}
-- 
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