From 0c1aec18911f2a67fb37b6593d08f4f8cb7e18ef Mon Sep 17 00:00:00 2001
From: Evan Cheng <evan.cheng@apple.com>
Date: Tue, 14 Dec 2010 03:22:07 +0000
Subject: bfi A, (and B, C1), C2) -> bfi A, B, C2 iff C1 & C2 == C1.
 rdar://8458663

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121746 91177308-0d34-0410-b5e6-96231b3b80d8
---
 test/CodeGen/ARM/bfi.ll | 13 +++++++++++++
 1 file changed, 13 insertions(+)

(limited to 'test/CodeGen/ARM/bfi.ll')

diff --git a/test/CodeGen/ARM/bfi.ll b/test/CodeGen/ARM/bfi.ll
index 157c90c753..946db1909f 100644
--- a/test/CodeGen/ARM/bfi.ll
+++ b/test/CodeGen/ARM/bfi.ll
@@ -49,3 +49,16 @@ define i32 @f4(i32 %a) nounwind {
   %ins12 = or i32 %ins7, 3137
   ret i32 %ins12
 }
+
+; rdar://8458663
+define i32 @f5(i32 %a, i32 %b) nounwind {
+entry:
+; CHECK: f5:
+; CHECK-NOT: bfc
+; CHECK: bfi r0, r1, #20, #4
+  %0 = and i32 %a, -15728641
+  %1 = shl i32 %b, 20
+  %2 = and i32 %1, 15728640
+  %3 = or i32 %2, %0
+  ret i32 %3
+}
-- 
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