344 lines
7.3 KiB
LLVM
344 lines
7.3 KiB
LLVM
; RUN: opt -disable-output -passes=print-lcg %s 2>&1 | FileCheck %s
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;
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; Basic validation of the call graph analysis used in the new pass manager.
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define void @f() {
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; CHECK-LABEL: Edges in function: f
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; CHECK-NOT: ->
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entry:
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ret void
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}
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; A bunch more functions just to make it easier to test several call edges at once.
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define void @f1() {
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ret void
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}
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define void @f2() {
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ret void
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}
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define void @f3() {
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ret void
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}
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define void @f4() {
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ret void
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}
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define void @f5() {
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ret void
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}
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define void @f6() {
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ret void
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}
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define void @f7() {
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ret void
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}
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define void @f8() {
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ret void
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}
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define void @f9() {
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ret void
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}
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define void @f10() {
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ret void
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}
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define void @f11() {
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ret void
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}
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define void @f12() {
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ret void
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}
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declare i32 @__gxx_personality_v0(...)
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define void @test0() {
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; CHECK-LABEL: Edges in function: test0
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; CHECK-NEXT: call -> f
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; CHECK-NOT: ->
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entry:
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call void @f()
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call void @f()
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call void @f()
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call void @f()
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ret void
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}
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define void ()* @test1(void ()** %x) personality i32 (...)* @__gxx_personality_v0 {
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; CHECK-LABEL: Edges in function: test1
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; CHECK-NEXT: call -> f6
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; CHECK-NEXT: call -> f10
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; CHECK-NEXT: ref -> f12
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; CHECK-NEXT: ref -> f11
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; CHECK-NEXT: ref -> f7
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; CHECK-NEXT: ref -> f9
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; CHECK-NEXT: ref -> f8
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; CHECK-NEXT: ref -> f5
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; CHECK-NEXT: ref -> f4
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; CHECK-NEXT: ref -> f3
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; CHECK-NEXT: ref -> f2
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; CHECK-NEXT: ref -> f1
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; CHECK-NOT: ->
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entry:
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br label %next
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dead:
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br label %next
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next:
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phi void ()* [ @f1, %entry ], [ @f2, %dead ]
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select i1 true, void ()* @f3, void ()* @f4
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store void ()* @f5, void ()** %x
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call void @f6()
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call void (void ()*, void ()*) bitcast (void ()* @f7 to void (void ()*, void ()*)*)(void ()* @f8, void ()* @f9)
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invoke void @f10() to label %exit unwind label %unwind
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exit:
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ret void ()* @f11
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unwind:
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%res = landingpad { i8*, i32 }
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cleanup
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resume { i8*, i32 } { i8* bitcast (void ()* @f12 to i8*), i32 42 }
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}
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@g = global void ()* @f1
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@g1 = global [4 x void ()*] [void ()* @f2, void ()* @f3, void ()* @f4, void ()* @f5]
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@g2 = global {i8, void ()*, i8} {i8 1, void ()* @f6, i8 2}
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@h = constant void ()* @f7
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define void @test2() {
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; CHECK-LABEL: Edges in function: test2
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; CHECK-NEXT: ref -> f7
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; CHECK-NEXT: ref -> f6
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; CHECK-NEXT: ref -> f5
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; CHECK-NEXT: ref -> f4
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; CHECK-NEXT: ref -> f3
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; CHECK-NEXT: ref -> f2
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; CHECK-NEXT: ref -> f1
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; CHECK-NOT: ->
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load i8*, i8** bitcast (void ()** @g to i8**)
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load i8*, i8** bitcast (void ()** getelementptr ([4 x void ()*], [4 x void ()*]* @g1, i32 0, i32 2) to i8**)
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load i8*, i8** bitcast (void ()** getelementptr ({i8, void ()*, i8}, {i8, void ()*, i8}* @g2, i32 0, i32 1) to i8**)
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load i8*, i8** bitcast (void ()** @h to i8**)
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ret void
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}
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@test3_ptr = external global void ()*
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define void @test3_aa1() {
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; CHECK-LABEL: Edges in function: test3_aa1
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; CHECK-NEXT: call -> test3_aa2
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; CHECK-NEXT: ref -> test3_ab1
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; CHECK-NOT: ->
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entry:
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call void @test3_aa2()
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store void ()* @test3_ab1, void ()** @test3_ptr
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ret void
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}
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define void @test3_aa2() {
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; CHECK-LABEL: Edges in function: test3_aa2
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; CHECK-NEXT: call -> test3_aa1
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; CHECK-NEXT: call -> test3_ab2
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; CHECK-NOT: ->
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entry:
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call void @test3_aa1()
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call void @test3_ab2()
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ret void
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}
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define void @test3_ab1() {
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; CHECK-LABEL: Edges in function: test3_ab1
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; CHECK-NEXT: call -> test3_ab2
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; CHECK-NEXT: call -> test3_ac1
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; CHECK-NOT: ->
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entry:
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call void @test3_ab2()
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call void @test3_ac1()
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ret void
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}
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define void @test3_ab2() {
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; CHECK-LABEL: Edges in function: test3_ab2
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; CHECK-NEXT: call -> test3_ab1
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; CHECK-NEXT: call -> test3_ba1
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; CHECK-NOT: ->
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entry:
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call void @test3_ab1()
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call void @test3_ba1()
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ret void
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}
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define void @test3_ac1() {
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; CHECK-LABEL: Edges in function: test3_ac1
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; CHECK-NEXT: call -> test3_ac2
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; CHECK-NEXT: ref -> test3_aa2
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; CHECK-NOT: ->
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entry:
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call void @test3_ac2()
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store void ()* @test3_aa2, void ()** @test3_ptr
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ret void
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}
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define void @test3_ac2() {
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; CHECK-LABEL: Edges in function: test3_ac2
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; CHECK-NEXT: call -> test3_ac1
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; CHECK-NEXT: ref -> test3_ba1
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; CHECK-NOT: ->
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entry:
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call void @test3_ac1()
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store void ()* @test3_ba1, void ()** @test3_ptr
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ret void
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}
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define void @test3_ba1() {
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; CHECK-LABEL: Edges in function: test3_ba1
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; CHECK-NEXT: call -> test3_bb1
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; CHECK-NEXT: ref -> test3_ca1
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; CHECK-NOT: ->
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entry:
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call void @test3_bb1()
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store void ()* @test3_ca1, void ()** @test3_ptr
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ret void
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}
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define void @test3_bb1() {
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; CHECK-LABEL: Edges in function: test3_bb1
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; CHECK-NEXT: call -> test3_ca2
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; CHECK-NEXT: ref -> test3_ba1
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; CHECK-NOT: ->
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entry:
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call void @test3_ca2()
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store void ()* @test3_ba1, void ()** @test3_ptr
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ret void
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}
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define void @test3_ca1() {
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; CHECK-LABEL: Edges in function: test3_ca1
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; CHECK-NEXT: call -> test3_ca2
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; CHECK-NOT: ->
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entry:
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call void @test3_ca2()
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ret void
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}
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define void @test3_ca2() {
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; CHECK-LABEL: Edges in function: test3_ca2
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; CHECK-NEXT: call -> test3_ca3
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; CHECK-NOT: ->
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entry:
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call void @test3_ca3()
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ret void
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}
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define void @test3_ca3() {
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; CHECK-LABEL: Edges in function: test3_ca3
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; CHECK-NEXT: call -> test3_ca1
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; CHECK-NOT: ->
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entry:
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call void @test3_ca1()
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ret void
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}
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; Verify the SCCs formed.
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;
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; CHECK-LABEL: RefSCC with 1 call SCCs:
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; CHECK-NEXT: SCC with 3 functions:
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; CHECK-NEXT: test3_ca3
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; CHECK-NEXT: test3_ca1
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; CHECK-NEXT: test3_ca2
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;
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; CHECK-LABEL: RefSCC with 2 call SCCs:
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; CHECK-NEXT: SCC with 1 functions:
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; CHECK-NEXT: test3_bb1
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; CHECK-NEXT: SCC with 1 functions:
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; CHECK-NEXT: test3_ba1
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;
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; CHECK-LABEL: RefSCC with 3 call SCCs:
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; CHECK-NEXT: SCC with 2 functions:
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; CHECK-NEXT: test3_ac2
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; CHECK-NEXT: test3_ac1
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; CHECK-NEXT: SCC with 2 functions:
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; CHECK-NEXT: test3_ab2
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; CHECK-NEXT: test3_ab1
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; CHECK-NEXT: SCC with 2 functions:
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; CHECK-NEXT: test3_aa2
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; CHECK-NEXT: test3_aa1
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;
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; CHECK-LABEL: RefSCC with 1 call SCCs:
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; CHECK-NEXT: SCC with 1 functions:
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; CHECK-NEXT: f7
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;
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; CHECK-LABEL: RefSCC with 1 call SCCs:
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; CHECK-NEXT: SCC with 1 functions:
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; CHECK-NEXT: f6
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;
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; CHECK-LABEL: RefSCC with 1 call SCCs:
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; CHECK-NEXT: SCC with 1 functions:
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; CHECK-NEXT: f5
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;
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; CHECK-LABEL: RefSCC with 1 call SCCs:
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; CHECK-NEXT: SCC with 1 functions:
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; CHECK-NEXT: f4
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;
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; CHECK-LABEL: RefSCC with 1 call SCCs:
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; CHECK-NEXT: SCC with 1 functions:
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; CHECK-NEXT: f3
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;
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; CHECK-LABEL: RefSCC with 1 call SCCs:
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; CHECK-NEXT: SCC with 1 functions:
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; CHECK-NEXT: f2
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;
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; CHECK-LABEL: RefSCC with 1 call SCCs:
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; CHECK-NEXT: SCC with 1 functions:
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; CHECK-NEXT: f1
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;
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; CHECK-LABEL: RefSCC with 1 call SCCs:
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; CHECK-NEXT: SCC with 1 functions:
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; CHECK-NEXT: test2
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;
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; CHECK-LABEL: RefSCC with 1 call SCCs:
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; CHECK-NEXT: SCC with 1 functions:
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; CHECK-NEXT: f10
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;
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; CHECK-LABEL: RefSCC with 1 call SCCs:
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; CHECK-NEXT: SCC with 1 functions:
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; CHECK-NEXT: f12
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;
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; CHECK-LABEL: RefSCC with 1 call SCCs:
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; CHECK-NEXT: SCC with 1 functions:
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; CHECK-NEXT: f11
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;
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; CHECK-LABEL: RefSCC with 1 call SCCs:
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; CHECK-NEXT: SCC with 1 functions:
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; CHECK-NEXT: f9
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;
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; CHECK-LABEL: RefSCC with 1 call SCCs:
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; CHECK-NEXT: SCC with 1 functions:
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; CHECK-NEXT: f8
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;
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; CHECK-LABEL: RefSCC with 1 call SCCs:
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; CHECK-NEXT: SCC with 1 functions:
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; CHECK-NEXT: test1
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;
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; CHECK-LABEL: RefSCC with 1 call SCCs:
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; CHECK-NEXT: SCC with 1 functions:
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; CHECK-NEXT: f
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;
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; CHECK-LABEL: RefSCC with 1 call SCCs:
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; CHECK-NEXT: SCC with 1 functions:
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; CHECK-NEXT: test0
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