clang/test/Profile/c-indirect-call.c

   1 // Check the value profiling intrinsics emitted by instrumentation.
   2
   3 // RUN: %clang_cc1 -triple x86_64-apple-macosx10.9 -main-file-name c-indirect-call.c %s -o - -emit-llvm -fprofile-instrument=clang -mllvm -enable-value-profiling | FileCheck --check-prefix=NOEXT %s
   4 // RUN: %clang_cc1 -triple s390x-ibm-linux -main-file-name c-indirect-call.c %s -o - -emit-llvm -fprofile-instrument=clang -mllvm -enable-value-profiling | FileCheck --check-prefix=EXT %s
   5
   6 void (*foo)(void);
   7
   8 int main(void) {
   9 // NOEXT:  [[REG1:%[0-9]+]] = load ptr, ptr @foo, align 8
  10 // NOEXT-NEXT:  [[REG2:%[0-9]+]] = ptrtoint ptr [[REG1]] to i64
  11 // NOEXT-NEXT:  call void @__llvm_profile_instrument_target(i64 [[REG2]], ptr @__profd_main, i32 0)
  12 // NOEXT-NEXT:  call void [[REG1]]()
  13 // EXT:  [[REG1:%[0-9]+]] = load ptr, ptr @foo, align 8
  14 // EXT-NEXT:  [[REG2:%[0-9]+]] = ptrtoint ptr [[REG1]] to i64
  15 // EXT-NEXT:  call void @__llvm_profile_instrument_target(i64 [[REG2]], ptr @__profd_main, i32 zeroext 0)
  16 // EXT-NEXT:  call void [[REG1]]()
  17   foo();
  18   return 0;
  19 }
  20
  21 // NOEXT: declare void @__llvm_profile_instrument_target(i64, ptr, i32)
  22 // EXT: declare void @__llvm_profile_instrument_target(i64, ptr, i32 zeroext)