clang/test/CodeGen/attr-alwaysinline.cpp

   1 // RUN: %clang_cc1 -S -emit-llvm %s -triple x86_64-unknown-linux-gnu -o - | FileCheck %s
   2
   3 bool bar();
   4 void f(bool, bool);
   5 void g(bool);
   6
   7 void foo(int i) {
   8   [[clang::always_inline]] bar();
   9 // CHECK: call noundef zeroext i1 @_Z3barv() #[[ALWAYSINLINEATTR:[0-9]+]]
  10   [[clang::always_inline]] (i = 4, bar());
  11 // CHECK: call noundef zeroext i1 @_Z3barv() #[[ALWAYSINLINEATTR]]
  12   [[clang::always_inline]] (void)(bar());
  13 // CHECK: call noundef zeroext i1 @_Z3barv() #[[ALWAYSINLINEATTR]]
  14   [[clang::always_inline]] f(bar(), bar());
  15 // CHECK: call noundef zeroext i1 @_Z3barv() #[[ALWAYSINLINEATTR]]
  16 // CHECK: call noundef zeroext i1 @_Z3barv() #[[ALWAYSINLINEATTR]]
  17 // CHECK: call void @_Z1fbb({{.*}}) #[[ALWAYSINLINEATTR]]
  18   [[clang::always_inline]] for (bar(); bar(); bar()) {}
  19 // CHECK: call noundef zeroext i1 @_Z3barv() #[[ALWAYSINLINEATTR]]
  20 // CHECK: call noundef zeroext i1 @_Z3barv() #[[ALWAYSINLINEATTR]]
  21 // CHECK: call noundef zeroext i1 @_Z3barv() #[[ALWAYSINLINEATTR]]
  22   bar();
  23 // CHECK: call noundef zeroext i1 @_Z3barv()
  24   [[gnu::always_inline]] bar();
  25 // CHECK: call noundef zeroext i1 @_Z3barv()
  26 }
  27
  28 struct S {
  29   friend bool operator==(const S &LHS, const S &RHS);
  30 };
  31
  32 void func(const S &s1, const S &s2) {
  33   [[clang::always_inline]]g(s1 == s2);
  34 // CHECK: call noundef zeroext i1 @_ZeqRK1SS1_({{.*}}) #[[ALWAYSINLINEATTR]]
  35 // CHECK: call void @_Z1gb({{.*}}) #[[ALWAYSINLINEATTR]]
  36   bool b;
  37   [[clang::always_inline]] b = s1 == s2;
  38 // CHECK: call noundef zeroext i1 @_ZeqRK1SS1_({{.*}}) #[[ALWAYSINLINEATTR]]
  39 }
  40
  41 // CHECK: attributes #[[ALWAYSINLINEATTR]] = { alwaysinline }