forked from OSchip/llvm-project
127 lines
2.5 KiB
LLVM
127 lines
2.5 KiB
LLVM
; RUN: opt -disable-output -passes=print-cg %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: Call 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: Call edges in function: test0
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; CHECK-NEXT: -> 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) {
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; CHECK-LABEL: Call edges in function: test1
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; CHECK-NEXT: -> f12
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; CHECK-NEXT: -> f11
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; CHECK-NEXT: -> f10
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; CHECK-NEXT: -> f7
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; CHECK-NEXT: -> f9
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; CHECK-NEXT: -> f8
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; CHECK-NEXT: -> f6
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; CHECK-NEXT: -> f5
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; CHECK-NEXT: -> f4
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; CHECK-NEXT: -> f3
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; CHECK-NEXT: -> f2
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; CHECK-NEXT: -> 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 } personality i32 (...)* @__gxx_personality_v0
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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: Call edges in function: test2
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; CHECK-NEXT: -> f7
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; CHECK-NEXT: -> f6
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; CHECK-NEXT: -> f5
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; CHECK-NEXT: -> f4
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; CHECK-NEXT: -> f3
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; CHECK-NEXT: -> f2
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; CHECK-NEXT: -> f1
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; CHECK-NOT: ->
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load i8** bitcast (void ()** @g to i8**)
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load i8** bitcast (void ()** getelementptr ([4 x void ()*]* @g1, i32 0, i32 2) to i8**)
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load i8** bitcast (void ()** getelementptr ({i8, void ()*, i8}* @g2, i32 0, i32 1) to i8**)
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load i8** bitcast (void ()** @h to i8**)
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ret void
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}
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