1; REQUIRES: x86 2;; malloc+memset references can be combined to a calloc reference. 3;; Test that we extract calloc defined in a lazy bitcode file to satisfy 4;; possible references from LTO generated object files. 5 6; RUN: rm -rf %t && split-file %s %t && cd %t 7; RUN: llvm-as a.ll -o a.bc 8; RUN: llvm-as calloc.ll -o calloc.bc 9; RUN: llvm-mc -filetype=obj -triple=x86_64 lib.s -o lib.o 10; RUN: ld.lld -u foo a.bc --start-lib calloc.bc lib.o --end-lib -o t --save-temps 11; RUN: llvm-dis < t.0.4.opt.bc | FileCheck %s 12; RUN: llvm-nm t | FileCheck %s --check-prefix=NM 13 14; CHECK: define dso_local void @calloc 15 16; NM-NOT: {{.}} 17; NM: {{.*}} T _start 18;; TODO: Currently the symbol is lazy, which lowers to a SHN_ABS symbol at address 0. 19; NM-NEXT: {{.*}} T calloc 20; NM-NEXT: {{.*}} T foo 21; NM-NEXT: {{.*}} T malloc 22; NM-NEXT: {{.*}} T memset 23; NM-NOT: {{.}} 24 25;--- a.ll 26target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-i128:128-f80:128-n8:16:32:64-S128" 27target triple = "x86_64-unknown-linux-gnu" 28 29define ptr @foo() noinline { 30entry: 31 %call = tail call noalias ptr @malloc(i64 400) 32 tail call void @llvm.memset.p0.i64(ptr %call, i8 0, i64 400, i1 false) 33 ret ptr %call 34} 35 36define void @_start(ptr %a, ptr %b) { 37entry: 38 call ptr @foo() 39 ret void 40} 41 42declare ptr @malloc(i64) 43declare void @llvm.memset.p0.i64(ptr nocapture writeonly, i8, i64, i1 immarg) 44 45;--- calloc.ll 46target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-i128:128-f80:128-n8:16:32:64-S128" 47target triple = "x86_64-unknown-linux-gnu" 48 49define void @calloc(i64, i64) { 50entry: 51 ret void 52} 53 54;--- lib.s 55.globl malloc, memset 56malloc: 57memset: 58