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- ; RUN: opt < %s -simplifycfg -S | \
- ; RUN: not grep select
- ;; The PHI node in this example should not be turned into a select, as we are
- ;; not able to ifcvt the entire block. As such, converting to a select just
- ;; introduces inefficiency without saving copies.
- define i32 @bar(i1 %C) {
- entry:
- br i1 %C, label %then, label %endif
- then: ; preds = %entry
- %tmp.3 = call i32 @qux( ) ; <i32> [#uses=0]
- br label %endif
- endif: ; preds = %then, %entry
- %R = phi i32 [ 123, %entry ], [ 12312, %then ] ; <i32> [#uses=1]
- ;; stuff to disable tail duplication
- call i32 @qux( ) ; <i32>:0 [#uses=0]
- call i32 @qux( ) ; <i32>:1 [#uses=0]
- call i32 @qux( ) ; <i32>:2 [#uses=0]
- call i32 @qux( ) ; <i32>:3 [#uses=0]
- call i32 @qux( ) ; <i32>:4 [#uses=0]
- call i32 @qux( ) ; <i32>:5 [#uses=0]
- call i32 @qux( ) ; <i32>:6 [#uses=0]
- ret i32 %R
- }
- declare i32 @qux()
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