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https://github.com/Gericom/teak-llvm.git
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3f82f9e127
We can't use any other string, anyway, because its type wouldn't match the type of the PredefinedExpr. With this change, we don't compute a "nice" name for the __func__ global when it's used in the initializer for a constant. This doesn't seem like a great loss, and I'm not sure how to fix it without either storing more information in the AST, or somehow threading through the information from ExprConstant.cpp. This could break some situations involving BlockDecl; currently, CodeGenFunction::EmitPredefinedLValue has some logic to intentionally emit a string different from what Sema computed. This code skips that logic... but that logic can't work correctly in general anyway. (For example, sizeof(__func__) returns the wrong result.) Hopefully this doesn't affect practical code. Fixes https://bugs.llvm.org/show_bug.cgi?id=40313 . Differential Revision: https://reviews.llvm.org/D56821 llvm-svn: 351766
113 lines
4.0 KiB
C++
113 lines
4.0 KiB
C++
// RUN: %clang_cc1 -std=c++14 %s -triple %itanium_abi_triple -fblocks -emit-llvm -o - | FileCheck %s
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// RUN: %clang_cc1 -x c++ -std=c++14 -triple %itanium_abi_triple -fblocks -emit-pch -o %t %s
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// RUN: %clang_cc1 -x c++ -triple %itanium_abi_triple -std=c++14 -fblocks -include-pch %t %s -emit-llvm -o - | FileCheck %s
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#ifndef HEADER
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#define HEADER
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// CHECK-DAG: @__func__._ZN13ClassTemplateIiE21classTemplateFunctionERi = private unnamed_addr constant [22 x i8] c"classTemplateFunction\00"
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// CHECK-DAG: @__PRETTY_FUNCTION__._ZN13ClassTemplateIiE21classTemplateFunctionERi = private unnamed_addr constant [69 x i8] c"const auto &ClassTemplate<int>::classTemplateFunction(T &) [T = int]\00"
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// CHECK-DAG: @__func__._ZN24ClassInTopLevelNamespace16functionTemplateIiEERDaRT_ = private unnamed_addr constant [17 x i8] c"functionTemplate\00"
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// CHECK-DAG: @__PRETTY_FUNCTION__._ZN24ClassInTopLevelNamespace16functionTemplateIiEERDaRT_ = private unnamed_addr constant [64 x i8] c"auto &ClassInTopLevelNamespace::functionTemplate(T &) [T = int]\00"
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// CHECK-DAG: @__func__._ZN24ClassInTopLevelNamespace16variadicFunctionEPiz = private unnamed_addr constant [17 x i8] c"variadicFunction\00"
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// CHECK-DAG: @__PRETTY_FUNCTION__._ZN24ClassInTopLevelNamespace16variadicFunctionEPiz = private unnamed_addr constant [70 x i8] c"decltype(auto) ClassInTopLevelNamespace::variadicFunction(int *, ...)\00"
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// CHECK-DAG: @__func__._ZN24ClassInTopLevelNamespace25topLevelNamespaceFunctionEv = private unnamed_addr constant [26 x i8] c"topLevelNamespaceFunction\00"
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// CHECK-DAG: @__PRETTY_FUNCTION__._ZN24ClassInTopLevelNamespace25topLevelNamespaceFunctionEv = private unnamed_addr constant [60 x i8] c"auto *ClassInTopLevelNamespace::topLevelNamespaceFunction()\00"
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// CHECK-DAG: @__func__.___ZN16ClassBlockConstrD2Ev_block_invoke = private unnamed_addr constant [31 x i8] c"~ClassBlockConstr_block_invoke\00"
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// CHECK-DAG: @__func__.___ZN16ClassBlockConstrC2Ev_block_invoke = private unnamed_addr constant [30 x i8] c"ClassBlockConstr_block_invoke\00"
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// CHECK-DAG: private unnamed_addr constant [32 x i8] c"const char *ConstexprPrettyFn()\00"
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int printf(const char * _Format, ...);
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class ClassInTopLevelNamespace {
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public:
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auto *topLevelNamespaceFunction() {
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printf("__func__ %s\n", __func__);
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printf("__FUNCTION__ %s\n", __FUNCTION__);
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printf("__PRETTY_FUNCTION__ %s\n\n", __PRETTY_FUNCTION__);
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return static_cast<int *>(nullptr);
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}
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decltype(auto) variadicFunction(int *a, ...) {
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printf("__func__ %s\n", __func__);
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printf("__FUNCTION__ %s\n", __FUNCTION__);
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printf("__PRETTY_FUNCTION__ %s\n\n", __PRETTY_FUNCTION__);
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return a;
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}
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template<typename T>
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auto &functionTemplate(T &t) {
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printf("__func__ %s\n", __func__);
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printf("__FUNCTION__ %s\n", __FUNCTION__);
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printf("__PRETTY_FUNCTION__ %s\n\n", __PRETTY_FUNCTION__);
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return t;
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}
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};
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template<typename T>
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class ClassTemplate {
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public:
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const auto &classTemplateFunction(T &t) {
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printf("__func__ %s\n", __func__);
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printf("__FUNCTION__ %s\n", __FUNCTION__);
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printf("__PRETTY_FUNCTION__ %s\n\n", __PRETTY_FUNCTION__);
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return t;
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}
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};
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struct ClassBlockConstr {
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const char *s;
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ClassBlockConstr() {
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const char * (^b)() = ^() {
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return __func__;
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};
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s = b();
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}
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~ClassBlockConstr() {
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const char * (^b)() = ^() {
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return __func__;
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};
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s = b();
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}
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};
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template <class T>
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class FuncTemplate {
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const char *Func;
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public:
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FuncTemplate() : Func(__func__) {}
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const char *getFunc() const { return Func; }
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};
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constexpr const char* ConstexprPrettyFn() {
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return __PRETTY_FUNCTION__;
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}
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const char* ConstexprPrettyVar = ConstexprPrettyFn();
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int
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main() {
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int a;
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ClassInTopLevelNamespace topLevelNamespace;
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ClassBlockConstr classBlockConstr;
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topLevelNamespace.topLevelNamespaceFunction();
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topLevelNamespace.variadicFunction(&a);
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topLevelNamespace.functionTemplate(a);
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ClassTemplate<int> t;
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t.classTemplateFunction(a);
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return 0;
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}
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#else
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void Foo() {
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FuncTemplate<int> FTi;
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(void)FTi.getFunc();
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}
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#endif
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