1; RUN: llvm-as %s -o %t.bc 2; RUN: llvm-as %p/Inputs/merge-functions-foo.ll -o %t-foo.bc 3; RUN: %gold -plugin %llvmshlibdir/LLVMgold%shlibext \ 4; RUN: -m elf_x86_64 \ 5; RUN: -plugin-opt=merge-functions \ 6; RUN: -plugin-opt=save-temps \ 7; RUN: -u main \ 8; RUN: %t.bc %t-foo.bc \ 9; RUN: -o %t-out 10; RUN: llvm-dis %t-out.0.5.precodegen.bc -o - | FileCheck %s 11 12; Check that we've merged foo and bar 13; CHECK: define dso_local noundef i32 @main() 14; CHECK-NEXT: tail call fastcc void @bar() 15; CHECK-NEXT: tail call fastcc void @bar() 16 17target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-i128:128-f80:128-n8:16:32:64-S128" 18target triple = "x86_64-pc-linux-gnu" 19 20@_g = external local_unnamed_addr global i32, align 4 21 22define dso_local i32 @bar(i32 noundef %0) #0 { 23 %2 = add nsw i32 %0, 42 24 store i32 %2, ptr @_g, align 4 25 ret i32 %2 26} 27 28define dso_local noundef i32 @main() { 29 %1 = tail call i32 @foo(i32 noundef 1) 30 %2 = tail call i32 @bar(i32 noundef 1) 31 ret i32 0 32} 33 34declare i32 @foo(i32 noundef) local_unnamed_addr #2 35 36attributes #0 = { noinline } 37 38!llvm.module.flags = !{!0, !1} 39 40!0 = !{i32 1, !"ThinLTO", i32 0} 41!1 = !{i32 1, !"EnableSplitLTOUnit", i32 1} 42 43^0 = module: (path: "merge-functions.o", hash: (0, 0, 0, 0, 0)) 44^1 = gv: (name: "foo") ; guid = 6699318081062747564 45^2 = gv: (name: "_g") ; guid = 9713702464056781075 46^3 = gv: (name: "main", summaries: (function: (module: ^0, flags: (linkage: external, visibility: default, notEligibleToImport: 1, live: 0, dsoLocal: 1, canAutoHide: 0), insts: 3, funcFlags: (readNone: 0, readOnly: 0, noRecurse: 0, returnDoesNotAlias: 0, noInline: 0, alwaysInline: 0, noUnwind: 1, mayThrow: 0, hasUnknownCall: 0, mustBeUnreachable: 0), calls: ((callee: ^1, tail: 1), (callee: ^4, tail: 1))))) ; guid = 15822663052811949562 47^4 = gv: (name: "bar", summaries: (function: (module: ^0, flags: (linkage: external, visibility: default, notEligibleToImport: 1, live: 0, dsoLocal: 1, canAutoHide: 0), insts: 3, funcFlags: (readNone: 0, readOnly: 0, noRecurse: 1, returnDoesNotAlias: 0, noInline: 1, alwaysInline: 0, noUnwind: 1, mayThrow: 0, hasUnknownCall: 0, mustBeUnreachable: 0), refs: (^2)))) ; guid = 16434608426314478903 48^5 = flags: 8 49^6 = blockcount: 0 50