Add testcases for FastDLE.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40449 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/test/Transforms/DeadLoadElimination/dg.exp b/test/Transforms/DeadLoadElimination/dg.exp
new file mode 100644 (file)
index 0000000..879685c
--- /dev/null
+++ b/test/Transforms/DeadLoadElimination/dg.exp
@@ -0,0 +1,3 @@
+load_lib llvm.exp
+
+RunLLVMTests [lsort [glob -nocomplain $srcdir/$subdir/*.{ll,llx,c,cpp,tr}]]

diff --git a/test/Transforms/DeadLoadElimination/simple.ll b/test/Transforms/DeadLoadElimination/simple.ll
new file mode 100644 (file)
index 0000000..acfee2b
--- /dev/null
+++ b/test/Transforms/DeadLoadElimination/simple.ll
@@ -0,0 +1,7 @@
+; RUN: llvm-as < %s | opt -fdle | llvm-dis | not grep DEAD
+
+define void @test(i32* %Q, i32* %P) {
+  %A = load i32* %Q
+       %DEAD = load i32* %Q            ; <i32> [#uses=1]
+       ret void
+}

diff --git a/test/Transforms/DeadLoadElimination/volatile.ll b/test/Transforms/DeadLoadElimination/volatile.ll
new file mode 100644 (file)
index 0000000..39d883b
--- /dev/null
+++ b/test/Transforms/DeadLoadElimination/volatile.ll
@@ -0,0 +1,7 @@
+; RUN: llvm-as < %s | opt -fdle | llvm-dis | grep NOTDEAD
+
+define void @test(i32* %Q, i32* %P) {
+  %A = load i32* %Q
+       %NOTDEAD = volatile load i32* %Q                ; <i32> [#uses=1]
+       ret void
+}