derek.holloway
7502bf64a4
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97 lines
3.0 KiB
C
97 lines
3.0 KiB
C
// RUN: %clang_cc1 -triple %itanium_abi_triple -Wno-incompatible-function-pointer-types -emit-llvm %s -o - | FileCheck %s
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// CHECK: _Z1fPA10_1X
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// CHECK: _Z1fPFvvE
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int __attribute__((overloadable)) f(int x) { return x; }
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float __attribute__((overloadable)) f(float x) { return x; }
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double __attribute__((overloadable)) f(double x) { return x; }
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double _Complex __attribute__((overloadable)) f(double _Complex x) { return x; }
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typedef short v4hi __attribute__ ((__vector_size__ (8)));
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v4hi __attribute__((overloadable)) f(v4hi x) { return x; }
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struct X { };
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void __attribute__((overloadable)) f(struct X (*ptr)[10]) { }
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void __attribute__((overloadable)) f(int x, int y, ...) { }
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void __attribute__((overloadable)) f(void (*x)(void)) {}
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int main(void) {
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int iv = 17;
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float fv = 3.0f;
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double dv = 4.0;
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double _Complex cdv;
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v4hi vv;
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iv = f(iv);
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fv = f(fv);
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dv = f(dv);
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cdv = f(cdv);
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vv = f(vv);
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}
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// Ensuring that we pick the correct function for taking the address of an
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// overload when conversions are involved.
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void addrof_many(int *a) __attribute__((overloadable, enable_if(0, "")));
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void addrof_many(void *a) __attribute__((overloadable));
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void addrof_many(char *a) __attribute__((overloadable));
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void addrof_single(int *a) __attribute__((overloadable, enable_if(0, "")));
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void addrof_single(char *a) __attribute__((overloadable, enable_if(0, "")));
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void addrof_single(char *a) __attribute__((overloadable));
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// CHECK-LABEL: define {{(dso_local )?}}void @foo
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void foo(void) {
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// CHECK: store ptr @_Z11addrof_manyPc
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void (*p1)(char *) = &addrof_many;
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// CHECK: store ptr @_Z11addrof_manyPv
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void (*p2)(void *) = &addrof_many;
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// CHECK: ptr @_Z11addrof_manyPc
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void *vp1 = (void (*)(char *)) & addrof_many;
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// CHECK: ptr @_Z11addrof_manyPv
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void *vp2 = (void (*)(void *)) & addrof_many;
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// CHECK: store ptr @_Z13addrof_singlePc
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void (*p3)(char *) = &addrof_single;
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// CHECK: @_Z13addrof_singlePc
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void (*p4)(int *) = &addrof_single;
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// CHECK: @_Z13addrof_singlePc
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void *vp3 = &addrof_single;
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}
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void ovl_bar(char *) __attribute__((overloadable));
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void ovl_bar(int) __attribute__((overloadable));
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// CHECK-LABEL: define {{(dso_local )?}}void @bar
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void bar(void) {
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char charbuf[1];
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unsigned char ucharbuf[1];
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// CHECK: call void @_Z7ovl_barPc
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ovl_bar(charbuf);
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// CHECK: call void @_Z7ovl_barPc
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ovl_bar(ucharbuf);
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}
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void ovl_baz(int *, int) __attribute__((overloadable));
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void ovl_baz(unsigned int *, unsigned int) __attribute__((overloadable));
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void ovl_baz2(int, int *) __attribute__((overloadable));
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void ovl_baz2(unsigned int, unsigned int *) __attribute__((overloadable));
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// CHECK-LABEL: define {{(dso_local )?}}void @baz
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void baz(void) {
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unsigned int j;
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// Initial rules for incompatible pointer conversions made this overload
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// ambiguous.
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// CHECK: call void @_Z7ovl_bazPjj
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ovl_baz(&j, 0);
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// CHECK: call void @_Z7ovl_bazPjj
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ovl_baz(&j, 0u);
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// CHECK: call void @_Z8ovl_baz2jPj
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ovl_baz2(0, &j);
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// CHECK: call void @_Z8ovl_baz2jPj
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ovl_baz2(0u, &j);
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}
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