Testcase for testb optimization.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@58827 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/test/CodeGen/X86/2008-11-06-testb.ll b/test/CodeGen/X86/2008-11-06-testb.ll
new file mode 100644
index 0000000..069d5d6
--- /dev/null
+++ b/test/CodeGen/X86/2008-11-06-testb.ll
@@ -0,0 +1,25 @@
+; RUN: llvm-as < %s | llc -mtriple=i386-apple-darwin | grep testb
+; ModuleID = '<stdin>'
+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-darwin9.5"
+ %struct.x = type <{ i8, i8, i16 }>
+
+define i32 @foo(%struct.x* %p) nounwind {
+entry:
+ %0 = getelementptr %struct.x* %p, i32 0, i32 0 ; <i8*> [#uses=1]
+ store i8 55, i8* %0, align 1
+ %1 = bitcast %struct.x* %p to i32* ; <i32*> [#uses=1]
+ %2 = load i32* %1, align 1 ; <i32> [#uses=1]
+ %3 = and i32 %2, 512 ; <i32> [#uses=1]
+ %4 = icmp eq i32 %3, 0 ; <i1> [#uses=1]
+ br i1 %4, label %bb5, label %bb
+
+bb: ; preds = %entry
+ %5 = tail call i32 (...)* @xx() nounwind ; <i32> [#uses=1]
+ ret i32 %5
+
+bb5: ; preds = %entry
+ ret i32 0
+}
+
+declare i32 @xx(...)