1; REQUIRES: x86 2; RUN: rm -rf %t && split-file %s %t && cd %t 3; RUN: mkdir d 4 5;; First ensure that the ThinLTO handling in lld handles 6;; bitcode without summary sections gracefully and generates index file. 7; RUN: llvm-as 1.ll -o 1.o 8; RUN: llvm-as %p/Inputs/thinlto.ll -o d/2.o 9; RUN: ld.lld --plugin-opt=thinlto-index-only -shared 1.o d/2.o -o 3 10; RUN: ls d/2.o.thinlto.bc 11; RUN: not test -e 3 12; RUN: ld.lld -shared 1.o d/2.o -o 3 13; RUN: llvm-nm 3 | FileCheck %s --check-prefix=NM 14 15;; Basic ThinLTO tests. 16; RUN: llvm-as 0.ll -o 0.o 17; RUN: opt -module-summary 1.ll -o 1.o 18; RUN: opt -module-summary %p/Inputs/thinlto.ll -o d/2.o 19; RUN: opt -module-summary %p/Inputs/thinlto_empty.ll -o 3.o 20; RUN: cp 3.o 4.o 21 22;; Ensure lld doesn't generates index files when --thinlto-index-only is not enabled. 23; RUN: rm -f 1.o.thinlto.bc d/2.o.thinlto.bc 24; RUN: ld.lld -shared 1.o d/2.o -o /dev/null 25; RUN: not ls 1.o.thinlto.bc 26; RUN: not ls d/2.o.thinlto.bc 27 28;; Ensure lld generates an index and not a binary if requested. 29; RUN: ld.lld --plugin-opt=thinlto-index-only -shared 1.o --start-lib d/2.o 3.o --end-lib 4.o -o 4 30; RUN: not test -e 4 31; RUN: llvm-bcanalyzer -dump 1.o.thinlto.bc | FileCheck %s --check-prefix=BACKEND1 32; RUN: llvm-bcanalyzer -dump d/2.o.thinlto.bc | FileCheck %s --check-prefix=BACKEND2 33; RUN: llvm-dis < 3.o.thinlto.bc | FileCheck %s --check-prefix=BACKEND3 34; RUN: llvm-dis < 4.o.thinlto.bc | FileCheck %s --check-prefix=BACKEND4 35 36; RUN: rm -f 1.o.thinlto.bc d/2.o.thinlto.bc 3.o.thinlto.bc 4.o.thinlto.bc 37; RUN: ld.lld --plugin-opt=thinlto-index-only=4.txt --plugin-opt=thinlto-emit-imports-files -shared 1.o --start-lib d/2.o 3.o --end-lib 4.o -o 4 38; RUN: not test -e 4 39; RUN: FileCheck %s --check-prefix=RSP --implicit-check-not={{.}} < 4.txt 40; RUN: llvm-bcanalyzer -dump 1.o.thinlto.bc | FileCheck %s --check-prefix=BACKEND1 41; RUN: llvm-bcanalyzer -dump d/2.o.thinlto.bc | FileCheck %s --check-prefix=BACKEND2 42; RUN: llvm-dis < 3.o.thinlto.bc | FileCheck %s --check-prefix=BACKEND3 43; RUN: llvm-dis < 4.o.thinlto.bc | FileCheck %s --check-prefix=BACKEND4 44; RUN: FileCheck %s --check-prefix=IMPORTS1 --implicit-check-not={{.}} < 1.o.imports 45; RUN: count 0 < d/2.o.imports 46;; Test that LLD generates an empty index even for lazy object file that is not added to link. 47; RUN: count 0 < 3.o.imports 48; RUN: count 0 < 4.o.imports 49 50;; Test the other spelling --thinlto-index-only= --thinlto-emit-imports-files and the interaction with --save-temps. 51; RUN: rm -f 4.txt 1.o.thinlto.bc d/2.o.thinlto.bc 3.o.thinlto.bc 4.o.thinlto.bc 52; RUN: ld.lld --thinlto-index-only=4.txt --thinlto-emit-imports-files --save-temps -shared 0.o 1.o --start-lib d/2.o 3.o --end-lib 4.o -o t 53; RUN: not test -e 4 54; RUN: FileCheck %s --check-prefix=RSP --implicit-check-not={{.}} < 4.txt 55; RUN: llvm-bcanalyzer -dump 1.o.thinlto.bc | FileCheck %s --check-prefix=BACKEND1 56; RUN: FileCheck %s --check-prefix=IMPORTS1 --implicit-check-not={{.}} < 1.o.imports 57; RUN: FileCheck %s --check-prefix=RESOLUTION < t.resolution.txt 58; RUN: llvm-dis < t.index.bc | FileCheck %s --check-prefix=INDEX-BC 59 60; RSP: 1.o 61; RSP-NEXT: d/2.o 62; RSP-NEXT: 4.o 63 64; IMPORTS1: d/2.o 65 66; RESOLUTION: 0.o 67; RESOLUTION-NEXT: -r=0.o,foo,px 68; RESOLUTION-NEXT: 1.o 69 70; INDEX-BC: ^0 = module: (path: "1.o", hash: (0, 0, 0, 0, 0)) 71; INDEX-BC-NEXT: ^1 = module: (path: "4.o", hash: (0, 0, 0, 0, 0)) 72; INDEX-BC-NEXT: ^2 = module: (path: "d/2.o", hash: (0, 0, 0, 0, 0)) 73 74;; Ensure LLD generates an empty index for each bitcode file even if all bitcode files are lazy. 75; RUN: rm -f 1.o.thinlto.bc 76; RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux-gnu /dev/null -o dummy.o 77; RUN: ld.lld --plugin-opt=thinlto-index-only -shared dummy.o --start-lib 1.o --end-lib -o /dev/null 78; RUN: ls 1.o.thinlto.bc 79 80;; Ensure when the same bitcode object is given as both lazy and non-lazy, 81;; LLD does not generate an empty index for the lazy object. 82; RUN: rm -f d/2.o.thinlto.bc 83; RUN: ld.lld --plugin-opt=thinlto-index-only -shared 1.o d/2.o --start-lib d/2.o --end-lib -o /dev/null 84; RUN: llvm-dis < d/2.o.thinlto.bc | grep -q '\^0 = module:' 85; RUN: rm -f d/2.o.thinlto.bc 86; RUN: ld.lld --plugin-opt=thinlto-index-only -shared --start-lib d/2.o --end-lib d/2.o 1.o -o /dev/null 87; RUN: llvm-dis < d/2.o.thinlto.bc | grep -q '\^0 = module:' 88 89;; Ensure when the same lazy bitcode object is given multiple times, 90;; no empty index file is generated if one of the copies is linked. 91; RUN: rm -f d/2.o.thinlto.bc 92; RUN: ld.lld --plugin-opt=thinlto-index-only -shared 1.o --start-lib d/2.o --end-lib --start-lib d/2.o --end-lib -o /dev/null 93; RUN: llvm-dis < d/2.o.thinlto.bc | grep -q '\^0 = module:' 94 95; NM: T f 96 97;; The backend index for this module contains summaries from itself and 98;; Inputs/thinlto.ll, as it imports from the latter. 99; BACKEND1: <MODULE_STRTAB_BLOCK 100; BACKEND1-NEXT: <ENTRY {{.*}} record string = '1.o' 101; BACKEND1-NEXT: <ENTRY {{.*}} record string = 'd/2.o' 102; BACKEND1-NEXT: </MODULE_STRTAB_BLOCK 103; BACKEND1: <GLOBALVAL_SUMMARY_BLOCK 104; BACKEND1: <VERSION 105; BACKEND1: <FLAGS 106; BACKEND1: <VALUE_GUID {{.*}} op0={{1|2}} {{op1=3060885059 op2=1207956914|op1=3432075125 op2=3712786831}} 107; BACKEND1: <VALUE_GUID {{.*}} op0={{1|2}} {{op1=3060885059 op2=1207956914|op1=3432075125 op2=3712786831}} 108; BACKEND1: <COMBINED 109; BACKEND1: <COMBINED 110; BACKEND1: </GLOBALVAL_SUMMARY_BLOCK 111 112;; The backend index for Input/thinlto.ll contains summaries from itself only, 113;; as it does not import anything. 114; BACKEND2: <MODULE_STRTAB_BLOCK 115; BACKEND2-NEXT: <ENTRY {{.*}} record string = 'd/2.o' 116; BACKEND2-NEXT: </MODULE_STRTAB_BLOCK 117; BACKEND2-NEXT: <GLOBALVAL_SUMMARY_BLOCK 118; BACKEND2-NEXT: <VERSION 119; BACKEND2-NEXT: <FLAGS 120; BACKEND2-NEXT: <VALUE_GUID {{.*}} op0=1 op1=3060885059 op2=1207956914 121; BACKEND2-NEXT: <COMBINED 122; BACKEND2-NEXT: </GLOBALVAL_SUMMARY_BLOCK 123 124; BACKEND3: ^0 = flags: 125 126; BACKEND4: ^0 = module: (path: "4.o", hash: (0, 0, 0, 0, 0)) 127 128;--- 0.ll 129target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128" 130target triple = "x86_64-unknown-linux-gnu" 131 132define void @foo() { 133 ret void 134} 135 136;--- 1.ll 137target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128" 138target triple = "x86_64-unknown-linux-gnu" 139 140declare void @g(...) 141 142define void @f() { 143entry: 144 call void (...) @g() 145 ret void 146} 147