Add test case for PR16785.
Thanks for Dimitry Andric, Rafael Espindola, and Benjamin Kramer
for providing and progressively reducing the test case!
llvm-svn: 191782
diff --git a/llvm/test/CodeGen/X86/atom-lea-addw-bug.ll b/llvm/test/CodeGen/X86/atom-lea-addw-bug.ll
new file mode 100644
index 0000000..5cda2df
--- /dev/null
+++ b/llvm/test/CodeGen/X86/atom-lea-addw-bug.ll
@@ -0,0 +1,19 @@
+; RUN: llc < %s -mcpu=atom | FileCheck %s
+
+; ModuleID = 'bugpoint-reduced-simplified.bc'
+target triple = "x86_64-apple-darwin12.5.0"
+
+define i32 @DoLayout() {
+entry:
+ %tmp1 = load i16* undef, align 2
+ %tmp17 = load i16* null, align 2
+ %tmp19 = load i16* undef, align 2
+ %shl = shl i16 %tmp19, 1
+ %add55 = add i16 %tmp17, %tmp1
+ %add57 = add i16 %add55, %shl
+ %conv60 = zext i16 %add57 to i32
+ %add61 = add nsw i32 %conv60, 0
+ %conv63 = and i32 %add61, 65535
+ ret i32 %conv63
+; CHECK: addw
+}