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d68aa303fe
First, we need to register local constant variables in C, so we get the same diagnostic behavior as the current interpeter. Second, when returning an LValue (as a Pointer), which we eventually convert to an RValue, we need to do the conversion immediately when saving the Pointer in the EvaluationResult. Otherwise, we will possibly deallocate the data before doing the conversion (which will look at the Block*).
91 lines
2.3 KiB
C
91 lines
2.3 KiB
C
// RUN: %clang_cc1 -Wchar-subscripts -fsyntax-only -verify %s
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// RUN: %clang_cc1 -Wchar-subscripts -fsyntax-only -verify %s -fexperimental-new-constant-interpreter
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void t1(void) {
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int array[1] = { 0 };
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char subscript = 0;
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int val = array[subscript]; // expected-warning{{array subscript is of type 'char'}}
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}
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void t2(void) {
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int array[1] = { 0 };
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char subscript = 0;
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int val = subscript[array]; // expected-warning{{array subscript is of type 'char'}}
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}
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void t3(void) {
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int *array = 0;
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char subscript = 0;
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int val = array[subscript]; // expected-warning{{array subscript is of type 'char'}}
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}
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void t4(void) {
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int *array = 0;
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char subscript = 0;
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int val = subscript[array]; // expected-warning{{array subscript is of type 'char'}}
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}
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char returnsChar(void);
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void t5(void) {
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int *array = 0;
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int val = array[returnsChar()]; // expected-warning{{array subscript is of type 'char'}}
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}
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void t6(void) {
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int array[1] = { 0 };
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signed char subscript = 0;
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int val = array[subscript]; // no warning for explicit signed char
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}
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void t7(void) {
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int array[1] = { 0 };
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unsigned char subscript = 0;
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int val = array[subscript]; // no warning for unsigned char
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}
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typedef char CharTy;
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void t8(void) {
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int array[1] = { 0 };
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CharTy subscript = 0;
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int val = array[subscript]; // expected-warning{{array subscript is of type 'char'}}
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}
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typedef signed char SignedCharTy;
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void t9(void) {
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int array[1] = { 0 };
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SignedCharTy subscript = 0;
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int val = array[subscript]; // no warning for explicit signed char
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}
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typedef unsigned char UnsignedCharTy;
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void t10(void) {
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int array[1] = { 0 };
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UnsignedCharTy subscript = 0;
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int val = array[subscript]; // no warning for unsigned char
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}
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void t11(void) {
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int array[256] = { 0 };
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int val = array['a']; // no warning for char with known positive value
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}
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void t12(void) {
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int array[256] = { 0 };
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char b = 'a';
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int val = array[b]; // expected-warning{{array subscript is of type 'char'}}
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}
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void t13(void) {
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int array[256] = { 0 };
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const char b = 'a';
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int val = array[b]; // expected-warning{{array subscript is of type 'char'}}
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}
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void t14(void) {
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int array[256] = { 0 }; // expected-note {{array 'array' declared here}}
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const char b = -1;
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// expected-warning@+2 {{array subscript is of type 'char'}}
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// expected-warning@+1 {{array index -1 is before the beginning of the array}}
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int val = array[b];
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}
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