1; REQUIRES: x86 2;; Ensure passing --plugin-opt=emit-llvm to lld, LTO should not emit 3;; incomplete optimization remarks for dead functions. 4 5; RUN: split-file %s %t.dir 6; RUN: opt -module-summary %t.dir/main.ll -o %t1.o 7; RUN: opt -module-summary %t.dir/other.ll -o %t2.o 8 9; RUN: rm -f %t.yaml 10; RUN: ld.lld --plugin-opt=emit-llvm --opt-remarks-filename %t.yaml %t1.o %t2.o -o %t 11; RUN: FileCheck %s --check-prefix=REMARK < %t.yaml 12 13; REMARK: Pass: lto 14; REMARK-NEXT: Name: deadfunction 15; REMARK-NEXT: DebugLoc: { File: test.c, Line: 4, Column: 0 } 16; REMARK-NEXT: Function: dead2 17; REMARK-NEXT: Args: 18; REMARK-NEXT: - Function: dead2 19; REMARK-NEXT: DebugLoc: { File: test.c, Line: 4, Column: 0 } 20; REMARK-NEXT: - String: ' not added to the combined module ' 21 22#--- main.ll 23target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128" 24target triple = "x86_64-unknown-linux-gnu" 25 26define void @_start() { 27 call void @live1() 28 ret void 29} 30 31declare void @live1() 32 33define void @live2() { 34 ret void 35} 36 37define void @dead2() !dbg !7 { 38 ret void 39} 40 41!llvm.dbg.cu = !{!0} 42!llvm.module.flags = !{!3, !4, !5} 43 44!0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, isOptimized: false, emissionKind: LineTablesOnly, enums: !2) 45!1 = !DIFile(filename: "test.c", directory: "/") 46!2 = !{} 47!3 = !{i32 2, !"Dwarf Version", i32 2} 48!4 = !{i32 2, !"Debug Info Version", i32 3} 49!5 = !{i32 1, !"ThinLTO", i32 0} 50!7 = distinct !DISubprogram(name: "dead2", scope: !1, file: !1, line: 4, type: !8, isLocal: false, isDefinition: true, scopeLine: 4, isOptimized: false, unit: !0, retainedNodes: !2) 51!8 = !DISubroutineType(types: !2) 52 53#--- other.ll 54target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128" 55target triple = "x86_64-unknown-linux-gnu" 56 57define void @live1() { 58 call void @live2() 59 ret void 60} 61 62declare void @live2() 63 64define void @dead1() { 65 call void @dead2() 66 ret void 67} 68 69declare void @dead2() 70