don't use dead loads as tests.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83985 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/test/Analysis/BasicAA/cas.ll b/test/Analysis/BasicAA/cas.ll
index 87772bf..4ce7811 100644
--- a/test/Analysis/BasicAA/cas.ll
+++ b/test/Analysis/BasicAA/cas.ll
@@ -1,4 +1,4 @@
-; RUN: opt < %s -basicaa -gvn -S | grep load | count 1
+; RUN: opt < %s -basicaa -gvn -instcombine -S | grep {ret i32 0}
@flag0 = internal global i32 zeroinitializer
@turn = internal global i32 zeroinitializer
@@ -6,9 +6,10 @@
define i32 @main() {
%a = load i32* @flag0
- %b = tail call i32 @llvm.atomic.swap.i32.p0i32(i32* @turn, i32 1)
+ %b = tail call i32 @llvm.atomic.swap.i32.p0i32(i32* @turn, i32 1)
%c = load i32* @flag0
- ret i32 %c
+ %d = sub i32 %a, %c
+ ret i32 %d
}
declare i32 @llvm.atomic.swap.i32.p0i32(i32*, i32) nounwind
\ No newline at end of file