clang/test/CodeGen/xray-function-groups.cpp

   1 // RUN: %clang_cc1 -fxray-instrument -fxray-instruction-threshold=1 -fxray-function-groups=3 -fxray-selected-function-group=0 \
   2 // RUN:            -emit-llvm -o - %s -triple x86_64-unknown-linux-gnu | FileCheck --check-prefix=GROUP0 %s
   3
   4 // RUN: %clang_cc1 -fxray-instrument -fxray-instruction-threshold=1 -fxray-function-groups=3 -fxray-selected-function-group=1 \
   5 // RUN:            -emit-llvm -o - %s -triple x86_64-unknown-linux-gnu | FileCheck --check-prefix=GROUP1 %s
   6
   7 // RUN: %clang_cc1 -fxray-instrument -fxray-instruction-threshold=1 -fxray-function-groups=3 -fxray-selected-function-group=2 \
   8 // RUN:            -emit-llvm -o - %s -triple x86_64-unknown-linux-gnu | FileCheck --check-prefix=GROUP2 %s
   9
  10 static int foo() { // part of group 0
  11   return 1;
  12 }
  13
  14 int bar() { // part of group 2
  15   return 1;
  16 }
  17
  18 int yarr() { // part of group 1
  19   foo();
  20   return 1;
  21 }
  22
  23 [[clang::xray_always_instrument]] int always() { // part of group 0
  24   return 1;
  25 }
  26
  27 [[clang::xray_never_instrument]] int never() { // part of group 1
  28   return 1;
  29 }
  30
  31 // GROUP0: define{{.*}} i32 @_Z3barv() #[[ATTRS_BAR:[0-9]+]] {
  32 // GROUP0: define{{.*}} i32 @_Z4yarrv() #[[ATTRS_BAR]] {
  33 // GROUP0: define{{.*}} i32 @_ZL3foov() #[[ATTRS_FOO:[0-9]+]] {
  34 // GROUP0: define{{.*}} i32 @_Z6alwaysv() #[[ATTRS_ALWAYS:[0-9]+]] {
  35 // GROUP0: define{{.*}} i32 @_Z5neverv() #[[ATTRS_NEVER:[0-9]+]] {
  36 // GROUP0-DAG: attributes #[[ATTRS_BAR]] = {{.*}} "function-instrument"="xray-never" {{.*}}
  37 // GROUP0-DAG: attributes #[[ATTRS_ALWAYS]] = {{.*}} "function-instrument"="xray-always" {{.*}}
  38 // GROUP0-DAG: attributes #[[ATTRS_NEVER]] = {{.*}} "function-instrument"="xray-never" {{.*}}
  39
  40 // GROUP1: define{{.*}} i32 @_Z3barv() #[[ATTRS_BAR:[0-9]+]] {
  41 // GROUP1: define{{.*}} i32 @_Z4yarrv() #[[ATTRS_YARR:[0-9]+]] {
  42 // GROUP1: define{{.*}} i32 @_ZL3foov() #[[ATTRS_BAR]] {
  43 // GROUP1: define{{.*}} i32 @_Z6alwaysv() #[[ATTRS_ALWAYS:[0-9]+]] {
  44 // GROUP1: define{{.*}} i32 @_Z5neverv() #[[ATTRS_NEVER:[0-9]+]] {
  45 // GROUP1-DAG: attributes #[[ATTRS_BAR]] = {{.*}} "function-instrument"="xray-never" {{.*}}
  46 // GROUP1-DAG: attributes #[[ATTRS_ALWAYS]] = {{.*}} "function-instrument"="xray-always" {{.*}}
  47 // GROUP1-DAG: attributes #[[ATTRS_NEVER]] = {{.*}} "function-instrument"="xray-never" {{.*}}
  48
  49 // GROUP2: define{{.*}} i32 @_Z3barv() #[[ATTRS_BAR:[0-9]+]] {
  50 // GROUP2: define{{.*}} i32 @_Z4yarrv() #[[ATTRS_YARR:[0-9]+]] {
  51 // GROUP2: define{{.*}} i32 @_ZL3foov() #[[ATTRS_YARR]] {
  52 // GROUP2: define{{.*}} i32 @_Z6alwaysv() #[[ATTRS_ALWAYS:[0-9]+]] {
  53 // GROUP2: define{{.*}} i32 @_Z5neverv() #[[ATTRS_NEVER:[0-9]+]] {
  54 // GROUP2-DAG: attributes #[[ATTRS_YARR]] = {{.*}} "function-instrument"="xray-never" {{.*}}
  55 // GROUP2-DAG: attributes #[[ATTRS_ALWAYS]] = {{.*}} "function-instrument"="xray-always" {{.*}}
  56 // GROUP2-DAG: attributes #[[ATTRS_NEVER]] = {{.*}} "function-instrument"="xray-never" {{.*}}