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207
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1 // RUN: %clang_cc1 -fsyntax-only -fblocks -Wno-objc-root-class -verify %s
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2
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3 void TestObjcBlock(void) {
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4 void (^x)(void) = ^(void) {
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5 __attribute__((musttail)) return TestObjcBlock(); // expected-error{{'musttail' attribute cannot be used from a block}}
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6 };
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7 __attribute__((musttail)) return x();
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8 }
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9
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10 void ReturnsVoid(void);
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11 void TestObjcBlockVar(void) {
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12 __block int i = 0; // expected-note{{jump exits scope of __block variable}}
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13 __attribute__((musttail)) return ReturnsVoid(); // expected-error{{cannot perform a tail call from this return statement}}
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14 }
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15
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16 __attribute__((objc_root_class))
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17 @interface TestObjcClass
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18 @end
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19
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20 @implementation TestObjcClass
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21
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22 - (void)testObjCMethod {
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23 __attribute__((musttail)) return ReturnsVoid(); // expected-error{{'musttail' attribute cannot be used from an Objective-C function}}
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24 }
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25
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26 @end
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