llvm-project

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; RUN: opt < %s -passes=partial-inliner -S | FileCheck %s
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; RUN: opt < %s -passes=partial-inliner -max-num-inline-blocks=3 -skip-partial-inlining-cost-analysis -S | FileCheck --check-prefix=LIMIT3 %s
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; RUN: opt < %s -passes=partial-inliner -max-num-inline-blocks=2 -S | FileCheck --check-prefix=LIMIT2 %s
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; Function Attrs: nounwind uwtable
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define i32 @bar(i32 %arg) local_unnamed_addr #0 {
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bb:
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  %tmp = icmp slt i32 %arg, 0
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  br i1 %tmp, label %bb4, label %bb1
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bb1:                                              ; preds = %bb
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  %tmp2 = tail call i32 (...) @n() #2
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  %tmp3 = icmp slt i32 %tmp2, %arg
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  br i1 %tmp3, label %bb4, label %bb8
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bb4:                                              ; preds = %bb1, %bb
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  %tmp5 = tail call i32 (...) @m() #2
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  %tmp6 = icmp sgt i32 %tmp5, %arg
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  br i1 %tmp6, label %bb7, label %bb8
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bb7:                                              ; preds = %bb4
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  tail call void (...) @foo() #2
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  tail call void (...) @foo() #2
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  tail call void (...) @foo() #2
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  tail call void (...) @foo() #2
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  tail call void (...) @foo() #2
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  tail call void (...) @foo() #2
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  tail call void (...) @foo() #2
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  tail call void (...) @foo() #2
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  tail call void (...) @foo() #2
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  br label %bb8
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bb8:                                              ; preds = %bb7, %bb4, %bb1
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  %tmp9 = phi i32 [ 0, %bb7 ], [ 1, %bb4 ], [ 1, %bb1 ]
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  ret i32 %tmp9
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}
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declare i32 @n(...) local_unnamed_addr #1
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declare i32 @m(...) local_unnamed_addr #1
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declare void @foo(...) local_unnamed_addr #1
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; Function Attrs: nounwind uwtable
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define i32 @dummy_caller(i32 %arg) local_unnamed_addr #0 {
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bb:
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; CHECK-LABEL: @dummy_caller
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; CHECK: br i1
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; CHECK: br i1
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; CHECK: br i1
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; CHECK: call void @bar.1.
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; LIMIT3-LABEL: @dummy_caller
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; LIMIT3: br i1
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; LIMIT3: br i1
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; LIMIT3-NOT: br i1
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; LIMIT3: call void @bar.1.
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; LIMIT2-LABEL: @dummy_caller
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; LIMIT2-NOT: br i1
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; LIMIT2: call i32 @bar(
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  %tmp = tail call i32 @bar(i32 %arg)
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  ret i32 %tmp
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}
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attributes #0 = { nounwind }
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attributes #1 = { nounwind }
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attributes #2 = { nounwind }
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