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Diffstat (limited to 'test/Transforms/LICM/no-preheader-test.ll')
| -rw-r--r-- | test/Transforms/LICM/no-preheader-test.ll | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/test/Transforms/LICM/no-preheader-test.ll b/test/Transforms/LICM/no-preheader-test.ll new file mode 100644 index 000000000000..6ea08612ea86 --- /dev/null +++ b/test/Transforms/LICM/no-preheader-test.ll @@ -0,0 +1,20 @@ +; Test that LICM works when there is not a loop-preheader +; RUN: llvm-as < %s | opt -licm | llvm-dis + +define void @testfunc(i32 %i.s, i1 %ifcond) { + br i1 %ifcond, label %Then, label %Else +Then: ; preds = %0 + br label %Loop +Else: ; preds = %0 + br label %Loop +Loop: ; preds = %Loop, %Else, %Then + %j = phi i32 [ 0, %Then ], [ 12, %Else ], [ %Next, %Loop ] ; <i32> [#uses=1] + %i = bitcast i32 %i.s to i32 ; <i32> [#uses=1] + %i2 = mul i32 %i, 17 ; <i32> [#uses=1] + %Next = add i32 %j, %i2 ; <i32> [#uses=2] + %cond = icmp eq i32 %Next, 0 ; <i1> [#uses=1] + br i1 %cond, label %Out, label %Loop +Out: ; preds = %Loop + ret void +} + |