1; REQUIRES: x86 2; RUN: llvm-as -o %T/comdat-main.lto.obj %s 3; RUN: llvm-as -o %T/comdat1.lto.obj %S/Inputs/lto-comdat1.ll 4; RUN: llvm-as -o %T/comdat2.lto.obj %S/Inputs/lto-comdat2.ll 5; RUN: rm -f %T/comdat.lto.lib 6; RUN: llvm-ar cru %T/comdat.lto.lib %T/comdat1.lto.obj %T/comdat2.lto.obj 7 8; RUN: llc -filetype=obj -o %T/comdat-main.obj %s 9; RUN: llc -filetype=obj -o %T/comdat1.obj %S/Inputs/lto-comdat1.ll 10; RUN: llc -filetype=obj -o %T/comdat2.obj %S/Inputs/lto-comdat2.ll 11; RUN: rm -f %T/comdat.lib 12; RUN: llvm-ar cru %T/comdat.lib %T/comdat1.obj %T/comdat2.obj 13 14; Check that, when we use an LTO main with LTO objects, we optimize away all 15; of f1, f2, and comdat. 16; RUN: lld-link /out:%T/comdat-main.exe /entry:main /subsystem:console %T/comdat-main.lto.obj %T/comdat1.lto.obj %T/comdat2.lto.obj 17; RUN: llvm-readobj --file-headers %T/comdat-main.exe | FileCheck -check-prefix=HEADERS-11 %s 18; RUN: llvm-objdump -d %T/comdat-main.exe | FileCheck --check-prefix=TEXT-11 %s 19; RUN: lld-link /out:%T/comdat-main.exe /entry:main /subsystem:console %T/comdat-main.lto.obj %T/comdat.lto.lib 20; RUN: llvm-readobj --file-headers %T/comdat-main.exe | FileCheck -check-prefix=HEADERS-11 %s 21; RUN: llvm-objdump -d %T/comdat-main.exe | FileCheck --check-prefix=TEXT-11 %s 22 23; Check that, when we use a non-LTO main with LTO objects, we pick the comdat 24; implementation in LTO, elide calls to it from inside LTO, and retain the 25; call to comdat from main. 26; RUN: lld-link /out:%T/comdat-main.exe /entry:main /subsystem:console %T/comdat-main.obj %T/comdat1.lto.obj %T/comdat2.lto.obj 27; RUN: llvm-readobj --file-headers %T/comdat-main.exe | FileCheck -check-prefix=HEADERS-01 %s 28; RUN: llvm-objdump -d %T/comdat-main.exe | FileCheck --check-prefix=TEXT-01 %s 29; RUN: lld-link /out:%T/comdat-main.exe /entry:main /subsystem:console %T/comdat-main.obj %T/comdat.lto.lib 30; RUN: llvm-readobj --file-headers %T/comdat-main.exe | FileCheck -check-prefix=HEADERS-01 %s 31; RUN: llvm-objdump -d %T/comdat-main.exe | FileCheck --check-prefix=TEXT-01 %s 32 33; Check that, when we use an LTO main with non-LTO objects, we pick the comdat 34; implementation in LTO, elide the call to it from inside LTO, and keep the 35; calls to comdat from the non-LTO objects. 36; RUN: lld-link /out:%T/comdat-main.exe /entry:main /subsystem:console %T/comdat-main.lto.obj %T/comdat1.obj %T/comdat2.obj 37; RUN: llvm-readobj --file-headers %T/comdat-main.exe | FileCheck -check-prefix=HEADERS-10 %s 38; RUN: llvm-objdump -d %T/comdat-main.exe | FileCheck --check-prefix=TEXT-10 %s 39; RUN: lld-link /out:%T/comdat-main.exe /entry:main /subsystem:console %T/comdat-main.lto.obj %T/comdat.lib 40; RUN: llvm-readobj --file-headers %T/comdat-main.exe | FileCheck -check-prefix=HEADERS-10 %s 41; RUN: llvm-objdump -d %T/comdat-main.exe | FileCheck --check-prefix=TEXT-10 %s 42 43; HEADERS-11: AddressOfEntryPoint: 0x1000 44; TEXT-11: Disassembly of section .text: 45; TEXT-11-EMPTY: 46; TEXT-11-NEXT: <.text>: 47; TEXT-11-NEXT: xorl %eax, %eax 48; TEXT-11-NEXT: retq 49 50; HEADERS-01: AddressOfEntryPoint: 0x1000 51; TEXT-01: Disassembly of section .text: 52; TEXT-01-EMPTY: 53; TEXT-01-NEXT: <.text>: 54; TEXT-01-NEXT: subq $40, %rsp 55; TEXT-01-NEXT: callq 0x140001020 56; TEXT-01-NEXT: callq 0x140001020 57; TEXT-01-NEXT: callq 0x140001020 58; TEXT-01-NEXT: xorl %eax, %eax 59; TEXT-01-NEXT: addq $40, %rsp 60; TEXT-01: retq 61; TEXT-01-NOT: callq 62; TEXT-01: retq 63; TEXT-01: int3 64; TEXT-01: int3 65; TEXT-01: int3 66; TEXT-01-NOT: {{.}} 67 68; HEADERS-10: AddressOfEntryPoint: 0x1020 69; TEXT-10: Disassembly of section .text: 70; TEXT-10-EMPTY: 71; TEXT-10-NEXT: <.text>: 72; TEXT-10-NEXT: subq $40, %rsp 73; TEXT-10-NEXT: callq 0x140001040 74; TEXT-10-NEXT: nop 75; TEXT-10-NEXT: addq $40, %rsp 76; TEXT-10-NEXT: retq 77; TEXT-10-NEXT: int3 78; TEXT-10-NEXT: subq $40, %rsp 79; TEXT-10-NEXT: callq 0x140001040 80; TEXT-10-NEXT: nop 81; TEXT-10-NEXT: addq $40, %rsp 82; TEXT-10-NEXT: retq 83; TEXT-10-NEXT: int3 84; TEXT-10-NEXT: subq $40, %rsp 85; TEXT-10-NEXT: callq 0x140001000 86; TEXT-10-NEXT: callq 0x140001010 87; TEXT-10-NEXT: xorl %eax, %eax 88; TEXT-10-NEXT: addq $40, %rsp 89; TEXT-10-NEXT: retq 90; TEXT-10-NOT: callq 91; TEXT-10: retq 92; TEXT-10-NOT: {{.}} 93 94target datalayout = "e-m:w-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128" 95target triple = "x86_64-pc-windows-msvc" 96 97$comdat = comdat any 98 99define i32 @main() { 100 call void @f1() 101 call void @f2() 102 call void @comdat() 103 ret i32 0 104} 105 106define linkonce_odr void @comdat() comdat { 107 ret void 108} 109 110declare void @f1() 111declare void @f2() 112