836de6babb
* In C++, never create a FunctionNoProtoType for a builtin (fixes C++1z crasher from r289754). * Fix type of __sync_synchronize to be a no-parameter function rather than a varargs function. This matches GCC. * Fix type of vfprintf to match its actual type. We gave it a wrong type due to PR4290 (apparently autoconf generates invalid code and expects compilers to choke it down or it miscompiles the program; the relevant error in clang was downgraded to a warning in r122744 to fix other occurrences of this autoconf brokenness, so we don't need this workaround any more). * Turn off vararg argument checking for __noop, since it's not *really* a varargs function. Alternatively we could add custom type checking for it and synthesize parameter types matching the actual arguments in each call, but that seemed like overkill. llvm-svn: 290146
19 lines
740 B
C
19 lines
740 B
C
// RUN: %clang_cc1 %s -fsyntax-only -pedantic -verify
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// RUN: %clang_cc1 %s -fsyntax-only -pedantic -verify -DPREDECLARE
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#ifdef PREDECLARE
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// PR16344
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// Clang has defined 'vfprint' in builtin list. If the following line occurs before any other
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// `vfprintf' in this file, and we getPreviousDecl()->getTypeSourceInfo() on it, then we will
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// get a null pointer since the one in builtin list doesn't has valid TypeSourceInfo.
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int vfprintf(void) { return 0; } // expected-warning {{requires inclusion of the header <stdio.h>}}
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#endif
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// PR4290
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// The following declaration is compatible with vfprintf, so we shouldn't
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// reject.
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int vfprintf();
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#ifndef PREDECLARE
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// expected-warning@-2 {{requires inclusion of the header <stdio.h>}}
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#endif
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