3e8553aab4
The global state refers to the number of the nodes currently in the module, and the number of direct calls between nodes, across the module. Node counts are not a problem; edge counts are because we want strictly the kind of edges that affect inlining (direct calls), and that is not easily obtainable without iteration over the whole module. This patch avoids relying on analysis invalidation because it turned out to be too aggressive in some cases. It leverages the fact that Node objects are stable - they do not get deleted while cgscc passes are run over the module; and cgscc pass manager invariants. Reviewed By: aeubanks Differential Revision: https://reviews.llvm.org/D115847
294 lines
4.6 KiB
LLVM
294 lines
4.6 KiB
LLVM
; Based on llvm/test/Other/cgscc-iterate-function-mutation.ll
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; RUN: opt -passes='default<O3>,print<inline-advisor>' -training-log=/dev/null \
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; RUN: -S -enable-ml-inliner=development -keep-inline-advisor-for-printing < %s 2>&1 | FileCheck %s
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; REQUIRES: have_tf_api
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;
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; CHECK: [MLInlineAdvisor] Nodes: 36 Edges: 0
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declare void @readnone() nofree nosync readnone
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declare void @unknown()
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declare void @reference_function_pointer(void()*) nofree nosync readnone
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; The @test1_* set of functions checks that when we mutate functions with
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; simplifycfg to delete call edges and this ends up splitting both the SCCs
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; and the RefSCCs that those functions are in, we re-run the CGSCC passes to
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; observe the refined call graph structure.
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define void @test1_a() {
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call void @test1_b1()
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call void @test1_b2()
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call void @test1_b3()
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call void @test1_b4()
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ret void
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}
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define void @test1_b1() {
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call void @readnone()
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ret void
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}
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define void @test1_b2() {
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call void @readnone()
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br i1 false, label %dead, label %exit
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dead:
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call void @test1_a()
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br label %exit
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exit:
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ret void
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}
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define void @test1_b3() {
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call void @unknown()
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br i1 false, label %dead, label %exit
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dead:
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call void @test1_a()
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br label %exit
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exit:
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ret void
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}
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define void @test1_b4() {
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call void @readnone()
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br i1 false, label %dead, label %exit
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dead:
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call void @test1_a()
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br label %exit
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exit:
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ret void
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}
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define void @test2_a() {
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call void @test2_b1()
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call void @test2_b2()
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call void @test2_b3()
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call void @test2_b4()
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ret void
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}
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define void @test2_b1() {
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call void @readnone()
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ret void
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}
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define void @test2_b2() {
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call void @reference_function_pointer(void()* @test2_a)
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br i1 false, label %dead, label %exit
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dead:
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call void @test2_a()
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br label %exit
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exit:
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ret void
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}
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define void @test2_b3() {
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call void @reference_function_pointer(void()* @test2_a)
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call void @unknown()
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br i1 false, label %dead, label %exit
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dead:
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call void @test2_a()
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br label %exit
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exit:
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ret void
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}
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define void @test2_b4() {
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call void @reference_function_pointer(void()* @test2_a)
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br i1 false, label %dead, label %exit
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dead:
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call void @test2_a()
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br label %exit
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exit:
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ret void
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}
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define void @test3_a() {
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call void @test3_b11()
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call void @test3_b21()
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call void @test3_b31()
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call void @test3_b41()
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ret void
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}
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define void @test3_b11() {
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call void @test3_b12()
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ret void
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}
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define void @test3_b12() {
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call void @test3_b13()
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ret void
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}
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define void @test3_b13() {
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call void @readnone()
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ret void
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}
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define void @test3_b21() {
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call void @test3_b22()
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ret void
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}
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define void @test3_b22() {
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call void @test3_b23()
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ret void
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}
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define void @test3_b23() {
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call void @readnone()
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br i1 false, label %dead, label %exit
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dead:
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call void @test3_a()
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br label %exit
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exit:
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ret void
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}
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define void @test3_b31() {
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call void @test3_b32()
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ret void
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}
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define void @test3_b32() {
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call void @test3_b33()
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ret void
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}
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define void @test3_b33() {
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call void @unknown()
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br i1 false, label %dead, label %exit
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dead:
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call void @test3_a()
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br label %exit
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exit:
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ret void
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}
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define void @test3_b41() {
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call void @test3_b42()
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ret void
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}
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define void @test3_b42() {
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call void @test3_b43()
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ret void
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}
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define void @test3_b43() {
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call void @readnone()
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br i1 false, label %dead, label %exit
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dead:
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call void @test3_a()
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br label %exit
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exit:
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ret void
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}
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define void @test4_a() {
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call void @test4_b11()
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call void @test4_b21()
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call void @test4_b31()
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call void @test4_b41()
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ret void
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}
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define void @test4_b11() {
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call void @test4_b12()
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ret void
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}
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define void @test4_b12() {
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call void @test4_b13()
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ret void
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}
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define void @test4_b13() {
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call void @readnone()
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ret void
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}
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define void @test4_b21() {
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call void @test4_b22()
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ret void
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}
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define void @test4_b22() {
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call void @test4_b23()
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ret void
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}
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define void @test4_b23() {
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call void @reference_function_pointer(void()* @test4_a)
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br i1 false, label %dead, label %exit
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dead:
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call void @test4_a()
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br label %exit
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exit:
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ret void
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}
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define void @test4_b31() {
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call void @test4_b32()
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ret void
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}
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define void @test4_b32() {
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call void @test4_b33()
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ret void
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}
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define void @test4_b33() {
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call void @reference_function_pointer(void()* @test4_a)
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call void @unknown()
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br i1 false, label %dead, label %exit
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dead:
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call void @test4_a()
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br label %exit
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exit:
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ret void
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}
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define void @test4_b41() {
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call void @test4_b42()
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ret void
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}
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define void @test4_b42() {
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call void @test4_b43()
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ret void
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}
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define void @test4_b43() {
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call void @reference_function_pointer(void()* @test4_a)
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br i1 false, label %dead, label %exit
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dead:
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call void @test4_a()
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br label %exit
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exit:
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ret void
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}
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