| // REQUIRES: x86-registered-target |
| |
| // RUN: split-file %s %t |
| // RUN: %clang_cc1 -triple x86_64-unknown-linux-gnu -flto=thin -emit-llvm-bc %t/a.c -o %t/a.bc |
| // RUN: %clang_cc1 -triple x86_64-unknown-linux-gnu -flto=thin -emit-llvm-bc %t/b.c -o %t/b.bc |
| // RUN: llvm-nm %t/a.bc | FileCheck %s --check-prefix=NM |
| |
| // 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 |
| // RUN: llvm-dis < %t/out.2.2.internalize.bc | FileCheck %s |
| |
| //--- a.c |
| /// IR symtab does not track inline asm symbols, so we don't know |
| /// ff_h264_cabac_tables is undefined. |
| // NM-NOT: {{.}} |
| // NM: ---------------- T ref |
| // NM-NOT: {{.}} |
| const char *ref() { |
| const char *ret; |
| asm("lea ff_h264_cabac_tables(%%rip), %0" : "=r"(ret)); |
| return ret; |
| } |
| |
| //--- b.c |
| /// ff_h264_cabac_tables has __attribute__((used)) in the source code, which means |
| /// its definition must be retained because there can be references the compiler |
| /// cannot see (inline asm reference). Test we don't internalize it. |
| // CHECK: @ff_h264_cabac_tables = dso_local constant [1 x i8] c"\09" |
| __attribute__((used)) |
| const char ff_h264_cabac_tables[1] = "\x09"; |