diff options
Diffstat (limited to 'test/CodeGenCXX/attr-disable-tail-calls.cpp')
-rw-r--r-- | test/CodeGenCXX/attr-disable-tail-calls.cpp | 35 |
1 files changed, 35 insertions, 0 deletions
diff --git a/test/CodeGenCXX/attr-disable-tail-calls.cpp b/test/CodeGenCXX/attr-disable-tail-calls.cpp new file mode 100644 index 000000000000..b9a3c2712f08 --- /dev/null +++ b/test/CodeGenCXX/attr-disable-tail-calls.cpp @@ -0,0 +1,35 @@ +// RUN: %clang_cc1 -triple=x86_64-apple-darwin -std=c++11 -emit-llvm -o - %s | FileCheck %s + +class B { +public: + [[clang::disable_tail_calls]] virtual int m1() { return 1; } + virtual int m2() { return 2; } + int m3() { return 3; } + [[clang::disable_tail_calls]] int m4(); +}; + +class D : public B { +public: + int m1() override { return 11; } + [[clang::disable_tail_calls]] int m2() override { return 22; } +}; + +int foo1() { + B *b = new B; + D *d = new D; + int t = 0; + t += b->m1() + b->m2() + b->m3() + b->m4(); + t += d->m1() + d->m2(); + return t; +} + +// CHECK: define linkonce_odr i32 @_ZN1B2m3Ev(%class.B* %this) [[ATTRFALSE:#[0-9]+]] +// CHECK: declare i32 @_ZN1B2m4Ev(%class.B*) [[ATTRTRUE0:#[0-9]+]] +// CHECK: define linkonce_odr i32 @_ZN1B2m1Ev(%class.B* %this) unnamed_addr [[ATTRTRUE1:#[0-9]+]] +// CHECK: define linkonce_odr i32 @_ZN1B2m2Ev(%class.B* %this) unnamed_addr [[ATTRFALSE:#[0-9]+]] +// CHECK: define linkonce_odr i32 @_ZN1D2m1Ev(%class.D* %this) unnamed_addr [[ATTRFALSE:#[0-9]+]] +// CHECK: define linkonce_odr i32 @_ZN1D2m2Ev(%class.D* %this) unnamed_addr [[ATTRTRUE1:#[0-9]+]] + +// CHECK: attributes [[ATTRFALSE]] = { {{.*}}"disable-tail-calls"="false"{{.*}} } +// CHECK: attributes [[ATTRTRUE0]] = { {{.*}}"disable-tail-calls"="true"{{.*}} } +// CHECK: attributes [[ATTRTRUE1]] = { {{.*}}"disable-tail-calls"="true"{{.*}} } |