1;; Test comdat functions. 2; RUN: opt < %s -mtriple=x86_64-linux -passes=pgo-instr-gen,instrprof -S | FileCheck %s --check-prefixes=ELF 3; RUN: opt < %s -mtriple=x86_64-windows -passes=pgo-instr-gen,instrprof -S | FileCheck %s --check-prefixes=COFF 4 5$linkonceodr = comdat any 6$weakodr = comdat any 7$weak = comdat any 8$linkonce = comdat any 9 10;; profc/profd have hash suffixes. This definition doesn't have value profiling, 11;; so definitions with the same name in other modules must have the same CFG and 12;; cannot have value profiling, either. profd can be made private for ELF. 13; ELF: @__profc_linkonceodr.[[#]] = linkonce_odr hidden global {{.*}} comdat, align 8 14; ELF: @__profd_linkonceodr.[[#]] = private global {{.*}} comdat($__profc_linkonceodr.[[#]]), align 8 15; COFF: @__profc_linkonceodr.[[#]] = linkonce_odr hidden global {{.*}} comdat, align 8 16; COFF: @__profd_linkonceodr.[[#]] = linkonce_odr hidden global {{.*}} comdat, align 8 17define linkonce_odr void @linkonceodr() comdat { 18 ret void 19} 20 21;; weakodr in a comdat is not renamed. There is no guarantee that definitions in 22;; other modules don't have value profiling. profd should be conservatively 23;; non-private to prevent a caller from referencing a non-prevailing profd, 24;; causing a linker error. 25; ELF: @__profc_weakodr = weak_odr hidden global {{.*}} comdat, align 8 26; ELF: @__profd_weakodr = weak_odr hidden global {{.*}} comdat($__profc_weakodr), align 8 27; COFF: @__profc_weakodr = weak_odr hidden global {{.*}} comdat, align 8 28; COFF: @__profd_weakodr = weak_odr hidden global {{.*}} comdat, align 8 29define weak_odr void @weakodr() comdat { 30 ret void 31} 32 33;; weak in a comdat is not renamed. There is no guarantee that definitions in 34;; other modules don't have value profiling. profd should be conservatively 35;; non-private to prevent a caller from referencing a non-prevailing profd, 36;; causing a linker error. 37; ELF: @__profc_weak = weak hidden global {{.*}} comdat, align 8 38; ELF: @__profd_weak = weak hidden global {{.*}} comdat($__profc_weak), align 8 39; COFF: @__profc_weak = weak hidden global {{.*}} comdat, align 8 40; COFF: @__profd_weak = weak hidden global {{.*}} comdat, align 8 41define weak void @weak() comdat { 42 ret void 43} 44 45;; profc/profd have hash suffixes. This definition doesn't have value profiling, 46;; so definitions with the same name in other modules must have the same CFG and 47;; cannot have value profiling, either. profd can be made private for ELF. 48; ELF: @__profc_linkonce.[[#]] = linkonce hidden global {{.*}} comdat, align 8 49; ELF: @__profd_linkonce.[[#]] = private global {{.*}} comdat($__profc_linkonce.[[#]]), align 8 50; COFF: @__profc_linkonce.[[#]] = linkonce hidden global {{.*}} comdat, align 8 51; COFF: @__profd_linkonce.[[#]] = linkonce hidden global {{.*}} comdat, align 8 52define linkonce void @linkonce() comdat { 53 ret void 54} 55 56; Check that comdat aliases are hidden for all linkage types 57; ELF: @linkonceodr.local = linkonce_odr hidden alias void (), ptr @linkonceodr 58; ELF: @weakodr.local = weak_odr hidden alias void (), ptr @weakodr 59; ELF: @weak.local = weak hidden alias void (), ptr @weak 60; ELF: @linkonce.local = linkonce hidden alias void (), ptr @linkonce 61