Mercurial > hg > CbC > CbC_gcc
view gcc/testsuite/g++.dg/debug/dwarf2/template-func-params-7.C @ 131:84e7813d76e9
gcc-8.2
author | mir3636 |
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date | Thu, 25 Oct 2018 07:37:49 +0900 |
parents | 04ced10e8804 |
children |
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// Contributed by Dodji Seketeli <dodji@redhat.com> // Origin PR debug/30161 // { dg-options "-gdwarf-2 -dA -fno-merge-debug-strings" } // { dg-do compile { target c++11 } } // There must be 5 subprograms generated: // printf(const char*), printf<int, char, int>, // printf<char, int>, printf<int> and foo(). // { dg-final {scan-assembler-times "DIE \\(0x\[^\n\]*\\) DW_TAG_subprogram" 5 } } // That makes 6 template type parameters. // { dg-final {scan-assembler-times "DIE \\(0x\[^\n\]*\\) DW_TAG_template_type_param" 6 } } // { dg-final {scan-assembler-times "\"printf<int, char, int>.0\"\[^\n\]*DW_AT_name" 1 } } // { dg-final {scan-assembler-times "\"printf<char, int>.0\"\[^\n\]*DW_AT_name" 1 } } // { dg-final {scan-assembler-times "\"printf<int>.0\"\[^\n\]*DW_AT_name" 1 } } // { dg-final {scan-assembler-times "\"printf.0\"\[^\n\]*DW_AT_name" 1 } } // printf<int, char, int> and printf<char, int> have a pack expansion as // function parameters. There should then be 3 // DW_TAG_GNU_template_parameter_pack and 3 DW_TAG_GNU_formal_parameter_pack DIEs // { dg-final {scan-assembler-times "DIE \\(0x\[^\n\]*\\) DW_TAG_GNU_template_parameter_pack" 3 } } // { dg-final {scan-assembler-times "DIE \\(0x\[^\n\]*\\) DW_TAG_GNU_formal_parameter_pack" 3 } } // These 3 function template instantiations has a total of 3 template // parameters named T. // { dg_final {scan-assembler-times "\.ascii \"T.0\"\[\t \]+\[^\n\]*DW_AT_name" 3 } } void printf(const char* s) { /* Commented this to not pull std::cout into what should be a simple test. while (*s) std::cout << *s++; */ } template<typename T, typename... PackTypes> void printf(const char* s, T value, PackTypes... args) { while (*s) { if (*s == '%' && *++s != '%') { /* std::cout << value; */ return printf(++s, args...); } } } void foo () { int x; printf("%c %d", x, 'x', 3); }