xref: /llvm-project/llvm/test/Transforms/FunctionImport/adjustable_threshold.ll (revision a9af1b9a307780a39facd016c7329990d6cc5508)
1; Do setup work for all below tests: generate bitcode and combined index
2; RUN: opt -module-summary %s -o %t.bc
3; RUN: opt -module-summary %p/Inputs/adjustable_threshold.ll -o %t2.bc
4; RUN: llvm-lto -thinlto -o %t3 %t.bc %t2.bc
5
6; Test import with default progressive instruction factor
7; RUN: opt -passes=function-import -summary-file %t3.thinlto.bc %t.bc -import-instr-limit=10 -S | FileCheck %s --check-prefix=INSTLIM-DEFAULT
8; INSTLIM-DEFAULT: call void @staticfunc2.llvm.
9
10; Test import with a reduced progressive instruction factor
11; RUN: opt -passes=function-import -summary-file %t3.thinlto.bc %t.bc -import-instr-limit=10 -import-instr-evolution-factor=0.5 -S | FileCheck %s --check-prefix=INSTLIM-PROGRESSIVE
12; INSTLIM-PROGRESSIVE-NOT: call void @staticfunc
13
14; Test force import all
15; RUN: opt -passes=function-import -summary-file %t3.thinlto.bc %t.bc \
16; RUN:  -import-instr-limit=1 -force-import-all -S \
17; RUN:  | FileCheck %s --check-prefix=IMPORTALL
18; IMPORTALL-DAG: define available_externally void @globalfunc1()
19; IMPORTALL-DAG: define available_externally void @trampoline()
20; IMPORTALL-DAG: define available_externally void @largefunction()
21; IMPORTALL-DAG: define available_externally hidden void @staticfunc2.llvm.0()
22; IMPORTALL-DAG: define available_externally void @globalfunc2()
23
24declare void @globalfunc1()
25declare void @globalfunc2()
26
27define void @entry() {
28entry:
29; Call site are processed in reversed order!
30
31; On the direct call, we reconsider @largefunction with a higher threshold and
32; import it
33  call void @globalfunc2()
34; When importing globalfunc1, the threshold was limited and @largefunction was
35; not imported.
36  call void @globalfunc1()
37  ret void
38}
39
40