2a6150d932
Previously, our logic when taking the address of an overloaded function would not consider enable_if attributes, so long as all of the enable_if conditions on a given candidate were true. So, two functions with identical signatures (one with enable_if attributes, the other without), would be considered equally good overloads. If we were calling the function instead of taking its address, then the function with enable_if attributes would be preferred. This patch makes us prefer the candidate with enable_if regardless of if we're calling or taking the address of an overloaded function. Differential Revision: http://reviews.llvm.org/D13795 llvm-svn: 250486
30 lines
990 B
C++
30 lines
990 B
C++
// RUN: %clang_cc1 -emit-llvm %s -o - -triple=x86_64-pc-linux-gnu| FileCheck %s
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// Test address-of overloading logic
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int test5(int);
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template <typename T>
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T test5(T) __attribute__((enable_if(1, "better than non-template")));
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// CHECK: @_Z5test5IiEUa9enable_ifIXLi1EEET_S0_
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int (*Ptr)(int) = &test5;
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// Test itanium mangling for attribute enable_if
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// CHECK: _Z5test1Ua9enable_ifIXeqfL0p_Li1EEEi
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void test1(int i) __attribute__((enable_if(i == 1, ""))) {}
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void ext();
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// CHECK: _Z5test2Ua9enable_ifIXneadL_Z3extvELi0EEEi
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void test2(int i) __attribute__((enable_if(&ext != 0, ""))) {}
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// CHECK: _Z5test3Ua9enable_ifIXeqfL0p_Li1EEXeqfL0p0_Li2EEEii
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void test3(int i, int j) __attribute__((enable_if(i == 1, ""), enable_if(j == 2, ""))) {}
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// CHECK: _ZN5test4IdE1fEUa9enable_ifIXeqfL0p_Li1EEXeqfL0p0_Li2EEEi
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template <typename T>
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class test4 {
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virtual void f(int i, int j) __attribute__((enable_if(i == 1, ""))) __attribute__((enable_if(j == 2, "")));
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};
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template class test4<double>;
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