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38a50c0a16
We referred to all declaration in definitions in our diagnostic messages which is can be inaccurate. Instead, classify the declaration and emit an appropriate diagnostic for the new declaration and an appropriate note pointing to the old one. This fixes PR24116. llvm-svn: 242190
71 lines
2.8 KiB
C
71 lines
2.8 KiB
C
// RUN: %clang_cc1 -fsyntax-only -verify %s
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int outer1; // expected-note{{previous definition is here}}
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extern int outer2; // expected-note{{previous declaration is here}}
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int outer4;
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int outer4; // expected-note{{previous definition is here}}
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int outer5;
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int outer6(float); // expected-note{{previous definition is here}}
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int outer7(float);
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void outer_test() {
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extern float outer1; // expected-error{{redeclaration of 'outer1' with a different type}}
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extern float outer2; // expected-error{{redeclaration of 'outer2' with a different type}}
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extern float outer3; // expected-note{{previous declaration is here}}
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double outer4;
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extern int outer5; // expected-note{{previous declaration is here}}
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extern int outer6; // expected-error{{redefinition of 'outer6' as different kind of symbol}}
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int outer7;
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extern int outer8; // expected-note{{previous definition is here}}
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extern int outer9;
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{
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extern int outer9; // expected-note{{previous declaration is here}}
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}
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}
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int outer3; // expected-error{{redefinition of 'outer3' with a different type}}
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float outer4; // expected-error{{redefinition of 'outer4' with a different type}}
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float outer5; // expected-error{{redefinition of 'outer5' with a different type}}
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int outer8(int); // expected-error{{redefinition of 'outer8' as different kind of symbol}}
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float outer9; // expected-error{{redefinition of 'outer9' with a different type}}
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extern int outer13; // expected-note{{previous declaration is here}}
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void outer_shadowing_test() {
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extern int outer10;
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extern int outer11; // expected-note{{previous declaration is here}}
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extern int outer12; // expected-note{{previous declaration is here}}
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{
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float outer10;
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float outer11;
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float outer12;
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{
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extern int outer10; // okay
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extern float outer11; // expected-error{{redeclaration of 'outer11' with a different type}}
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static double outer12;
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{
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extern float outer12; // expected-error{{redeclaration of 'outer12' with a different type}}
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extern float outer13; // expected-error{{redeclaration of 'outer13' with a different type}}
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}
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}
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}
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}
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void g18(void) { // expected-note{{'g18' declared here}}
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extern int g19;
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}
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int *p=&g19; // expected-error{{use of undeclared identifier 'g19'}} \
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// expected-warning{{incompatible pointer types}}
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// PR3645
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static int a;
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extern int a; // expected-note {{previous declaration is here}}
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int a; // expected-error {{non-static declaration of 'a' follows static declaration}}
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void f(int x) { // expected-note {{previous definition is here}}
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extern int x; // expected-error {{extern declaration of 'x' follows non-extern declaration}}
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}
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extern int b[];
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void g20() { extern int b[3]; } // expected-note{{previous declaration is here}}
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void g21() { extern int b[4]; } // expected-error{{redeclaration of 'b' with a different type: 'int [4]' vs 'int [3]'}}
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