44d061a471
Add support for /Ob1 (and equivalent -finline-hint-functions), which enable inlining only for functions marked inline, either explicitly (via inline keyword, for example), or implicitly (function definition in class body, for example). This works by enabling inlining pass, and adding noinline attribute to every function not marked inline. Patch by Rudy Pons <rudy.pons@ilod.org>! Differential Revision: http://reviews.llvm.org/D20647 llvm-svn: 273440
97 lines
4.5 KiB
C++
97 lines
4.5 KiB
C++
// RUN: %clang_cc1 %s -std=c++11 -triple=x86_64-linux -finline-functions -emit-llvm -disable-llvm-optzns -o - | FileCheck %s --check-prefix=CHECK --check-prefix=SUITABLE
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// RUN: %clang_cc1 %s -std=c++11 -triple=x86_64-linux -finline-hint-functions -emit-llvm -disable-llvm-optzns -o - | FileCheck %s --check-prefix=CHECK --check-prefix=HINTED
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// RUN: %clang_cc1 %s -std=c++11 -triple=x86_64-linux -fno-inline -emit-llvm -disable-llvm-optzns -o - | FileCheck %s --check-prefix=CHECK --check-prefix=NOINLINE
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// Force non-trivial implicit constructors/destructors/operators for B by having explicit ones for A
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struct A {
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A() {}
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A(const A&) {}
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A& operator=(const A&) { return *this; }
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~A() {}
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};
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struct B {
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A member;
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int implicitFunction(int a) { return a + a; }
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inline int explicitFunction(int a);
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int noHintFunction(int a);
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__attribute__((optnone)) int optNoneFunction(int a) { return a + a; }
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template<int N> int implicitTplFunction(int a) { return N + a; }
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template<int N> inline int explicitTplFunction(int a) { return N + a; }
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template<int N> int noHintTplFunction(int a);
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template<int N> int explicitRedeclTplFunction(int a);
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};
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int B::explicitFunction(int a) { return a + a; }
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// CHECK: @_ZN1B14noHintFunctionEi({{.*}}) [[NOHINT_ATTR:#[0-9]+]]
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int B::noHintFunction(int a) { return a + a; }
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// CHECK: @_ZN1B19implicitTplFunctionILi0EEEii({{.*}}) [[NOHINT_ATTR]]
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template<> int B::implicitTplFunction<0>(int a) { return a + a; }
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// CHECK: @_ZN1B19explicitTplFunctionILi0EEEii({{.*}}) [[NOHINT_ATTR]]
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template<> int B::explicitTplFunction<0>(int a) { return a + a; }
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// CHECK: @_ZN1B17noHintTplFunctionILi0EEEii({{.*}}) [[NOHINT_ATTR]]
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template<> int B::noHintTplFunction<0>(int a) { return a + a; }
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template<> inline int B::implicitTplFunction<1>(int a) { return a; }
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template<> inline int B::explicitTplFunction<1>(int a) { return a; }
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template<> inline int B::noHintTplFunction<1>(int a) { return a; }
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template<int N> int B::noHintTplFunction(int a) { return N + a; }
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template<int N> inline int B::explicitRedeclTplFunction(int a) { return N + a; }
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constexpr int constexprFunction(int a) { return a + a; }
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void foo()
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{
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// CHECK: @_ZN1BC1Ev({{.*}}) unnamed_addr [[IMPLICIT_CONSTR_ATTR:#[0-9]+]]
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B b1;
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// CHECK: @_ZN1BC1ERKS_({{.*}}) unnamed_addr [[IMPLICIT_CONSTR_ATTR]]
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B b2(b1);
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// CHECK: @_ZN1BaSERKS_({{.*}}) [[IMPLICIT_CONSTR_ATTR]]
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b2 = b1;
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// CHECK: @_ZN1B16implicitFunctionEi({{.*}}) [[IMPLICIT_ATTR:#[0-9]+]]
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b1.implicitFunction(1);
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// CHECK: @_ZN1B16explicitFunctionEi({{.*}}) [[EXPLICIT_ATTR:#[0-9]+]]
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b1.explicitFunction(2);
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b1.noHintFunction(3);
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// CHECK: @_ZN1B15optNoneFunctionEi({{.*}}) [[OPTNONE_ATTR:#[0-9]+]]
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b1.optNoneFunction(4);
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// CHECK: @_Z17constexprFunctioni({{.*}}) [[IMPLICIT_ATTR]]
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constexprFunction(5);
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b1.implicitTplFunction<0>(6);
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// CHECK: @_ZN1B19implicitTplFunctionILi1EEEii({{.*}}) [[EXPLICIT_ATTR]]
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b1.implicitTplFunction<1>(7);
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// CHECK: @_ZN1B19implicitTplFunctionILi2EEEii({{.*}}) [[IMPLICIT_ATTR]]
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b1.implicitTplFunction<2>(8);
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b1.explicitTplFunction<0>(9);
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// CHECK: @_ZN1B19explicitTplFunctionILi1EEEii({{.*}}) [[EXPLICIT_ATTR]]
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b1.explicitTplFunction<1>(10);
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// CHECK: @_ZN1B19explicitTplFunctionILi2EEEii({{.*}}) [[EXPLICIT_ATTR]]
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b1.explicitTplFunction<2>(11);
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b1.noHintTplFunction<0>(12);
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// CHECK: @_ZN1B17noHintTplFunctionILi1EEEii({{.*}}) [[EXPLICIT_ATTR]]
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b1.noHintTplFunction<1>(13);
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// CHECK: @_ZN1B17noHintTplFunctionILi2EEEii({{.*}}) [[NOHINT_ATTR]]
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b1.noHintTplFunction<2>(14);
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// CHECK: @_ZN1B25explicitRedeclTplFunctionILi2EEEii({{.*}}) [[EXPLICIT_ATTR]]
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b1.explicitRedeclTplFunction<2>(15);
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// CHECK: @_ZN1BD2Ev({{.*}}) unnamed_addr [[IMPLICIT_CONSTR_ATTR]]
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}
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// SUITABLE-NOT: attributes [[NOHINT_ATTR]] = { {{.*}}noinline{{.*}} }
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// HINTED-DAG: attributes [[NOHINT_ATTR]] = { noinline{{.*}} }
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// NOINLINE-DAG: attributes [[NOHINT_ATTR]] = { noinline{{.*}} }
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// SUITABLE-NOT: attributes [[IMPLICIT_ATTR]] = { {{.*}}noinline{{.*}} }
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// HINTED-NOT: attributes [[IMPLICIT_ATTR]] = { {{.*}}noinline{{.*}} }
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// NOINLINE-DAG: attributes [[IMPLICIT_ATTR]] = { noinline{{.*}} }
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// SUITABLE-NOT: attributes [[IMPLICIT_CONSTR_ATTR]] = { {{.*}}noinline{{.*}} }
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// HINTED-NOT: attributes [[IMPLICIT_ATTR]] = { {{.*}}noinline{{.*}} }
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// NOINLINE-DAG: attributes [[IMPLICIT_CONSTR_ATTR]] = { noinline{{.*}} }
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// SUITABLE-NOT: attributes [[EXPLICIT_ATTR]] = { {{.*}}noinline{{.*}} }
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// HINTED-NOT: attributes [[IMPLICIT_ATTR]] = { {{.*}}noinline{{.*}} }
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// NOINLINE-DAG: attributes [[EXPLICIT_ATTR]] = { noinline{{.*}} }
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// CHECK-DAG: attributes [[OPTNONE_ATTR]] = { noinline{{.*}} }
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