1; RUN: split-file %s %t 2; RUN: opt -module-summary %t/a.s -o %t/a.bc 3; RUN: opt -module-summary %t/b.s -o %t/b.bc 4; RUN: llvm-nm %t/a.bc | FileCheck %s --check-prefix=NM 5 6; RUN: llvm-lto2 run %t/a.bc %t/b.bc -o %t/out -save-temps -r=%t/a.bc,ref,plx -r=%t/b.bc,ff_h264_cabac_tables,pl 7; RUN: llvm-dis < %t/out.2.2.internalize.bc | FileCheck %s 8 9;--- a.s 10;; IR symtab does not track inline asm symbols, so we don't know 11;; ff_h264_cabac_tables is undefined. 12; NM-NOT: {{.}} 13; NM: ---------------- T ref 14; NM-NOT: {{.}} 15target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128" 16target triple = "x86_64-unknown-linux-gnu" 17 18define ptr @ref() { 19entry: 20 %0 = tail call ptr asm sideeffect "lea ff_h264_cabac_tables(%rip), $0", "=&r,~{dirflag},~{fpsr},~{flags}"() 21 ret ptr %0 22} 23 24;--- b.s 25target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128" 26target triple = "x86_64-unknown-linux-gnu" 27 28;; ff_h264_cabac_tables has __attribute__((used)) in the source code, which means 29;; its definition must be retained because there can be references the compiler 30;; cannot see (inline asm reference). Test we don't internalize it. 31; CHECK: @ff_h264_cabac_tables = dso_local constant [1 x i8] c"\09" 32@ff_h264_cabac_tables = dso_local constant [1 x i8] c"\09" 33 34@llvm.compiler.used = appending global [1 x ptr] [ptr @ff_h264_cabac_tables], section "llvm.metadata" 35