clang/test/Frontend/embed-bitcode-noopt.c

   1 // Ensure calling bypassing the driver with -fembed-bitcode embeds bitcode pre-
   2 // optimizations
   3 // REQUIRES: x86-registered-target
   4 // RUN: %clang_cc1 %s -O2 -emit-obj -triple=x86_64-unknown-linux-gnu -o %t.o -fembed-bitcode=all
   5 // RUN: llvm-objcopy --dump-section=.llvmbc=%t.bc %t.o /dev/null
   6
   7 // Also check that the .llvmcmd section captures the optimization options.
   8 // RUN: llvm-dis %t.bc -o - | FileCheck %s --check-prefix=CHECK-BC
   9 // RUN: llvm-objcopy --dump-section=.llvmcmd=- %t.o /dev/null | FileCheck %s --check-prefix=CHECK-CMD
  10
  11 // CHECK-BC-LABEL: define{{.*}} void @bar() #0 {
  12 // CHECK-BC-NEXT: entry:
  13 // CHECK-BC-NEXT: ret void
  14 // CHECK-BC-NEXT: }
  15 // CHECK-BC-LABEL: define{{.*}} void @foo() #1 {
  16 // CHECK-BC-NEXT: entry:
  17 // CHECK-BC-NEXT: call void @bar()
  18 // CHECK-BC-NEXT: ret void
  19 // CHECK-BC-NEXT: }
  20 // CHECK-BC-LABEL: attributes #0 = {{.*}} alwaysinline
  21 // CHECK-CMD: -O2
  22
  23 __attribute__((always_inline)) void bar(void) {
  24   return;
  25 }
  26
  27 void foo(void) {
  28   bar();
  29   return;
  30 }