1; RUN: rm -rf %t && split-file %s %t && cd %t 2; RUN: mkdir d 3 4;; First ensure that the ThinLTO handling in lld handles 5;; bitcode without summary sections gracefully and generates index file. 6; RUN: llvm-as 1.ll -o 1.o 7; RUN: llvm-as %p/Inputs/thinlto.ll -o d/2.o 8; RUN: wasm-ld --thinlto-index-only -shared 1.o d/2.o -o 3 9; RUN: ls d/2.o.thinlto.bc 10; RUN: not test -e 3 11; RUN: wasm-ld -shared 1.o d/2.o -o 3 12; RUN: llvm-nm 3 | FileCheck %s --check-prefix=NM 13 14;; Basic ThinLTO tests. 15; RUN: llvm-as 0.ll -o 0.o 16; RUN: opt -module-summary 1.ll -o 1.o 17; RUN: opt -module-summary %p/Inputs/thinlto.ll -o d/2.o 18; RUN: opt -module-summary %p/Inputs/thinlto_empty.ll -o 3.o 19; RUN: cp 3.o 4.o 20 21;; Ensure lld doesn't generates index files when --thinlto-index-only is not enabled. 22; RUN: rm -f 1.o.thinlto.bc d/2.o.thinlto.bc 23; RUN: wasm-ld -shared 1.o d/2.o -o /dev/null 24; RUN: not ls 1.o.thinlto.bc 25; RUN: not ls d/2.o.thinlto.bc 26 27;; Ensure lld generates an index and not a binary if requested. 28; RUN: wasm-ld --thinlto-index-only -shared 1.o --start-lib d/2.o 3.o --end-lib 4.o -o 4 29; RUN: not test -e 4 30; RUN: llvm-bcanalyzer -dump 1.o.thinlto.bc | FileCheck %s --check-prefix=BACKEND1 31; RUN: llvm-bcanalyzer -dump d/2.o.thinlto.bc | FileCheck %s --check-prefix=BACKEND2 32; RUN: llvm-dis < 3.o.thinlto.bc | FileCheck %s --check-prefix=BACKEND3 33; RUN: llvm-dis < 4.o.thinlto.bc | FileCheck %s --check-prefix=BACKEND4 34 35; RUN: rm -f 1.o.thinlto.bc d/2.o.thinlto.bc 3.o.thinlto.bc 4.o.thinlto.bc 36; RUN: wasm-ld --thinlto-index-only=4.txt --thinlto-emit-imports-files -shared 1.o --start-lib d/2.o 3.o --end-lib 4.o -o 4 37; RUN: not test -e 4 38; RUN: FileCheck %s --check-prefix=RSP --implicit-check-not={{.}} < 4.txt 39; RUN: llvm-bcanalyzer -dump 1.o.thinlto.bc | FileCheck %s --check-prefix=BACKEND1 40; RUN: llvm-bcanalyzer -dump d/2.o.thinlto.bc | FileCheck %s --check-prefix=BACKEND2 41; RUN: llvm-dis < 3.o.thinlto.bc | FileCheck %s --check-prefix=BACKEND3 42; RUN: llvm-dis < 4.o.thinlto.bc | FileCheck %s --check-prefix=BACKEND4 43; RUN: FileCheck %s --check-prefix=IMPORTS1 --implicit-check-not={{.}} < 1.o.imports 44; RUN: count 0 < d/2.o.imports 45;; Test that LLD generates an empty index even for lazy object file that is not added to link. 46; RUN: count 0 < 3.o.imports 47; RUN: count 0 < 4.o.imports 48 49;; Test interaction with --save-temps. 50; RUN: rm -f 4.txt 1.o.thinlto.bc d/2.o.thinlto.bc 3.o.thinlto.bc 4.o.thinlto.bc 51; RUN: wasm-ld --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 52; RUN: not test -e 4 53; RUN: FileCheck %s --check-prefix=RSP --implicit-check-not={{.}} < 4.txt 54; RUN: llvm-bcanalyzer -dump 1.o.thinlto.bc | FileCheck %s --check-prefix=BACKEND1 55; RUN: FileCheck %s --check-prefix=IMPORTS1 --implicit-check-not={{.}} < 1.o.imports 56; RUN: FileCheck %s --check-prefix=RESOLUTION < t.resolution.txt 57; RUN: llvm-dis < t.index.bc | FileCheck %s --check-prefix=INDEX-BC 58 59; RSP: 1.o 60; RSP-NEXT: d/2.o 61; RSP-NEXT: 4.o 62 63; IMPORTS1: d/2.o 64 65; RESOLUTION: 0.o 66; RESOLUTION-NEXT: -r=0.o,foo,px 67; RESOLUTION-NEXT: 1.o 68 69; INDEX-BC: ^0 = module: (path: "1.o", hash: (0, 0, 0, 0, 0)) 70; INDEX-BC-NEXT: ^1 = module: (path: "4.o", hash: (0, 0, 0, 0, 0)) 71; INDEX-BC-NEXT: ^2 = module: (path: "d/2.o", hash: (0, 0, 0, 0, 0)) 72 73;; Ensure LLD generates an empty index for each bitcode file even if all bitcode files are lazy. 74; RUN: rm -f 1.o.thinlto.bc 75; RUN: llvm-mc -filetype=obj -triple=wasm32-unknown-unknown /dev/null -o dummy.o 76; RUN: wasm-ld --thinlto-index-only -shared dummy.o --start-lib 1.o --end-lib -o /dev/null 77; RUN: ls 1.o.thinlto.bc 78 79;; Ensure when the same bitcode object is given as both lazy and non-lazy, 80;; LLD does not generate an empty index for the lazy object. 81; RUN: rm -f d/2.o.thinlto.bc 82; RUN: wasm-ld --thinlto-index-only -shared 1.o d/2.o --start-lib d/2.o --end-lib -o /dev/null 83; RUN: llvm-dis < d/2.o.thinlto.bc | grep -q '\^0 = module:' 84; RUN: rm -f d/2.o.thinlto.bc 85; RUN: wasm-ld --thinlto-index-only -shared --start-lib d/2.o --end-lib d/2.o 1.o -o /dev/null 86; RUN: llvm-dis < d/2.o.thinlto.bc | grep -q '\^0 = module:' 87 88;; Ensure when the same lazy bitcode object is given multiple times, 89;; no empty index file is generated if one of the copies is linked. 90; RUN: rm -f d/2.o.thinlto.bc 91; RUN: wasm-ld --thinlto-index-only -shared 1.o --start-lib d/2.o --end-lib --start-lib d/2.o --end-lib -o /dev/null 92; RUN: llvm-dis < d/2.o.thinlto.bc | grep -q '\^0 = module:' 93 94; NM: T f 95 96;; The backend index for this module contains summaries from itself and 97;; Inputs/thinlto.ll, as it imports from the latter. 98; BACKEND1: <MODULE_STRTAB_BLOCK 99; BACKEND1-NEXT: <ENTRY {{.*}} record string = '1.o' 100; BACKEND1-NEXT: <ENTRY {{.*}} record string = 'd/2.o' 101; BACKEND1-NEXT: </MODULE_STRTAB_BLOCK 102; BACKEND1: <GLOBALVAL_SUMMARY_BLOCK 103; BACKEND1: <VERSION 104; BACKEND1: <FLAGS 105; BACKEND1: <VALUE_GUID {{.*}} op0={{1|2}} {{op1=3060885059 op2=1207956914|op1=3432075125 op2=3712786831}} 106; BACKEND1: <VALUE_GUID {{.*}} op0={{1|2}} {{op1=3060885059 op2=1207956914|op1=3432075125 op2=3712786831}} 107; BACKEND1: <COMBINED 108; BACKEND1: <COMBINED 109; BACKEND1: </GLOBALVAL_SUMMARY_BLOCK 110 111;; The backend index for Input/thinlto.ll contains summaries from itself only, 112;; as it does not import anything. 113; BACKEND2: <MODULE_STRTAB_BLOCK 114; BACKEND2-NEXT: <ENTRY {{.*}} record string = 'd/2.o' 115; BACKEND2-NEXT: </MODULE_STRTAB_BLOCK 116; BACKEND2-NEXT: <GLOBALVAL_SUMMARY_BLOCK 117; BACKEND2-NEXT: <VERSION 118; BACKEND2-NEXT: <FLAGS 119; BACKEND2-NEXT: <VALUE_GUID {{.*}} op0=1 op1=3060885059 op2=1207956914 120; BACKEND2-NEXT: <COMBINED 121; BACKEND2-NEXT: </GLOBALVAL_SUMMARY_BLOCK 122 123; BACKEND3: ^0 = flags: 124 125; BACKEND4: ^0 = module: (path: "4.o", hash: (0, 0, 0, 0, 0)) 126 127;--- 0.ll 128target datalayout = "e-m:e-p:32:32-p10:8:8-p20:8:8-i64:64-n32:64-S128-ni:1:10:20" 129target triple = "wasm32-unknown-unknown" 130 131define void @foo() { 132 ret void 133} 134 135;--- 1.ll 136target datalayout = "e-m:e-p:32:32-p10:8:8-p20:8:8-i64:64-n32:64-S128-ni:1:10:20" 137target triple = "wasm32-unknown-unknown" 138 139declare void @g(...) 140 141define void @f() { 142entry: 143 call void (...) @g() 144 ret void 145} 146