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/funcimport.ll -o %t2.bc 4; RUN: llvm-lto -thinlto -print-summary-global-ids -o %t3 %t.bc %t2.bc 2>&1 | FileCheck %s --check-prefix=GUID 5 6; Do the import now 7; RUN: opt -disable-force-link-odr -function-import -stats -print-imports -enable-import-metadata -summary-file %t3.thinlto.bc %t.bc -S 2>&1 | FileCheck %s --check-prefix=CHECK --check-prefix=INSTLIMDEF 8; "-stats" requires +Asserts. 9; REQUIRES: asserts 10 11; Test import with smaller instruction limit 12; RUN: opt -disable-force-link-odr -function-import -enable-import-metadata -summary-file %t3.thinlto.bc %t.bc -import-instr-limit=5 -S | FileCheck %s --check-prefix=CHECK --check-prefix=INSTLIM5 13; INSTLIM5-NOT: @staticfunc.llvm. 14 15; Test import with smaller instruction limit and without the -disable-force-link-odr 16; RUN: opt -function-import -summary-file %t3.thinlto.bc %t.bc -import-instr-limit=5 -S | FileCheck %s --check-prefix=INSTLIM5ODR 17; INSTLIM5ODR: define linkonce_odr void @linkonceodr() { 18 19 20define i32 @main() #0 { 21entry: 22 call void (...) @weakalias() 23 call void (...) @analias() 24 call void (...) @linkoncealias() 25 %call = call i32 (...) @referencestatics() 26 %call1 = call i32 (...) @referenceglobals() 27 %call2 = call i32 (...) @referencecommon() 28 call void (...) @setfuncptr() 29 call void (...) @callfuncptr() 30 call void (...) @weakfunc() 31 call void (...) @linkoncefunc2() 32 call void (...) @referencelargelinkonce() 33 ret i32 0 34} 35 36; Won't import weak alias 37; CHECK-DAG: declare void @weakalias 38declare void @weakalias(...) #1 39 40; Cannot create an alias to available_externally 41; CHECK-DAG: declare void @analias 42declare void @analias(...) #1 43 44; FIXME: Add this checking back when follow on fix to add alias summary 45; records is committed. 46; Aliases import the aliasee function 47declare void @linkoncealias(...) #1 48 49; INSTLIMDEF-DAG: Import referencestatics 50; INSTLIMDEF-DAG: define available_externally i32 @referencestatics(i32 %i) !thinlto_src_module !0 { 51; INSTLIM5-DAG: declare i32 @referencestatics(...) 52declare i32 @referencestatics(...) #1 53 54; The import of referencestatics will expose call to staticfunc that 55; should in turn be imported as a promoted/renamed and hidden function. 56; Ensure that the call is to the properly-renamed function. 57; INSTLIMDEF-DAG: Import staticfunc 58; INSTLIMDEF-DAG: %call = call i32 @staticfunc.llvm. 59; INSTLIMDEF-DAG: define available_externally hidden i32 @staticfunc.llvm.{{.*}} !thinlto_src_module !0 { 60 61; INSTLIMDEF-DAG: Import referenceglobals 62; CHECK-DAG: define available_externally i32 @referenceglobals(i32 %i) !thinlto_src_module !0 { 63declare i32 @referenceglobals(...) #1 64 65; The import of referenceglobals will expose call to globalfunc1 that 66; should in turn be imported. 67; INSTLIMDEF-DAG: Import globalfunc1 68; CHECK-DAG: define available_externally void @globalfunc1() !thinlto_src_module !0 69 70; INSTLIMDEF-DAG: Import referencecommon 71; CHECK-DAG: define available_externally i32 @referencecommon(i32 %i) !thinlto_src_module !0 { 72declare i32 @referencecommon(...) #1 73 74; INSTLIMDEF-DAG: Import setfuncptr 75; CHECK-DAG: define available_externally void @setfuncptr() !thinlto_src_module !0 { 76declare void @setfuncptr(...) #1 77 78; INSTLIMDEF-DAG: Import callfuncptr 79; CHECK-DAG: define available_externally void @callfuncptr() !thinlto_src_module !0 { 80declare void @callfuncptr(...) #1 81 82; Ensure that all uses of local variable @P which has used in setfuncptr 83; and callfuncptr are to the same promoted/renamed global. 84; CHECK-DAG: @P.llvm.{{.*}} = external hidden global void ()* 85; CHECK-DAG: %0 = load void ()*, void ()** @P.llvm. 86; CHECK-DAG: store void ()* @staticfunc2.llvm.{{.*}}, void ()** @P.llvm. 87 88; Ensure that @referencelargelinkonce definition is pulled in, but later we 89; also check that the linkonceodr function is not. 90; CHECK-DAG: define available_externally void @referencelargelinkonce() !thinlto_src_module !0 { 91; INSTLIM5-DAG: declare void @linkonceodr() 92declare void @referencelargelinkonce(...) 93 94; Won't import weak func 95; CHECK-DAG: declare void @weakfunc(...) 96declare void @weakfunc(...) #1 97 98; Won't import linkonce func 99; CHECK-DAG: declare void @linkoncefunc2(...) 100declare void @linkoncefunc2(...) #1 101 102; INSTLIMDEF-DAG: Import funcwithpersonality 103; INSTLIMDEF-DAG: define available_externally hidden void @funcwithpersonality.llvm.{{.*}}() personality i8* bitcast (i32 (...)* @__gxx_personality_v0 to i8*) !thinlto_src_module !0 { 104; INSTLIM5-DAG: declare hidden void @funcwithpersonality.llvm.{{.*}}() 105 106; INSTLIMDEF-DAG: Import globalfunc2 107; INSTLIMDEF-DAG: 13 function-import - Number of functions imported 108; CHECK-DAG: !0 = !{!"{{.*}}/Inputs/funcimport.ll"} 109 110; The actual GUID values will depend on path to test. 111; GUID-DAG: GUID {{.*}} is weakalias 112; GUID-DAG: GUID {{.*}} is referenceglobals 113; GUID-DAG: GUID {{.*}} is weakfunc 114; GUID-DAG: GUID {{.*}} is main 115; GUID-DAG: GUID {{.*}} is referencecommon 116; GUID-DAG: GUID {{.*}} is analias 117; GUID-DAG: GUID {{.*}} is referencestatics 118; GUID-DAG: GUID {{.*}} is linkoncealias 119; GUID-DAG: GUID {{.*}} is setfuncptr 120; GUID-DAG: GUID {{.*}} is callfuncptr 121; GUID-DAG: GUID {{.*}} is funcwithpersonality 122; GUID-DAG: GUID {{.*}} is setfuncptr 123; GUID-DAG: GUID {{.*}} is staticfunc2 124; GUID-DAG: GUID {{.*}} is __gxx_personality_v0 125; GUID-DAG: GUID {{.*}} is referencestatics 126; GUID-DAG: GUID {{.*}} is globalfunc1 127; GUID-DAG: GUID {{.*}} is globalfunc2 128; GUID-DAG: GUID {{.*}} is P 129; GUID-DAG: GUID {{.*}} is staticvar 130; GUID-DAG: GUID {{.*}} is commonvar 131; GUID-DAG: GUID {{.*}} is weakalias 132; GUID-DAG: GUID {{.*}} is staticfunc 133; GUID-DAG: GUID {{.*}} is weakfunc 134; GUID-DAG: GUID {{.*}} is referenceglobals 135; GUID-DAG: GUID {{.*}} is weakvar 136; GUID-DAG: GUID {{.*}} is staticconstvar 137; GUID-DAG: GUID {{.*}} is analias 138; GUID-DAG: GUID {{.*}} is globalvar 139; GUID-DAG: GUID {{.*}} is referencecommon 140; GUID-DAG: GUID {{.*}} is linkoncealias 141; GUID-DAG: GUID {{.*}} is callfuncptr 142; GUID-DAG: GUID {{.*}} is linkoncefunc 143