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      1 // RUN: %clang_cc1 %s -fsyntax-only -verify -fms-extensions -Wunknown-pragmas
      2 // RUN: not %clang_cc1 %s -fms-extensions -E | FileCheck %s
      3 // REQUIRES: non-ps4-sdk
      4 
      5 // rdar://6495941
      6 
      7 #define FOO 1
      8 #define BAR "2"
      9 
     10 #pragma comment(linker,"foo=" FOO) // expected-error {{pragma comment requires parenthesized identifier and optional string}}
     11 // CHECK: #pragma comment(linker,"foo=" 1)
     12 #pragma comment(linker," bar=" BAR)
     13 // CHECK: #pragma comment(linker," bar=" "2")
     14 
     15 #pragma comment( user, "Compiled on " __DATE__ " at " __TIME__ )
     16 // CHECK: {{#pragma comment\( user, \"Compiled on \".*\" at \".*\" \)}}
     17 
     18 #pragma comment(foo)    // expected-error {{unknown kind of pragma comment}}
     19 // CHECK: #pragma comment(foo)
     20 #pragma comment(compiler,)     // expected-error {{expected string literal in pragma comment}}
     21 // CHECK: #pragma comment(compiler,)
     22 #define foo compiler
     23 #pragma comment(foo)   // macro expand kind.
     24 // CHECK: #pragma comment(compiler)
     25 #pragma comment(foo) x // expected-error {{pragma comment requires}}
     26 // CHECK: #pragma comment(compiler) x
     27 
     28 #pragma comment(user, "foo\abar\nbaz\tsome	thing")
     29 // CHECK: #pragma comment(user, "foo\abar\nbaz\tsome	thing")
     30 
     31 #pragma detect_mismatch("test", "1")
     32 // CHECK: #pragma detect_mismatch("test", "1")
     33 #pragma detect_mismatch()  // expected-error {{expected string literal in pragma detect_mismatch}}
     34 // CHECK: #pragma detect_mismatch()
     35 #pragma detect_mismatch("test") // expected-error {{pragma detect_mismatch is malformed; it requires two comma-separated string literals}}
     36 // CHECK: #pragma detect_mismatch("test")
     37 #pragma detect_mismatch("test", 1) // expected-error {{expected string literal in pragma detect_mismatch}}
     38 // CHECK: #pragma detect_mismatch("test", 1)
     39 #pragma detect_mismatch("test", BAR)
     40 // CHECK: #pragma detect_mismatch("test", "2")
     41 
     42 // __pragma
     43 
     44 __pragma(comment(linker," bar=" BAR))
     45 // CHECK: #pragma comment(linker," bar=" "2")
     46 
     47 #define MACRO_WITH__PRAGMA { \
     48   __pragma(warning(push)); \
     49   __pragma(warning(disable: 10000)); \
     50   1 + (2 > 3) ? 4 : 5; \
     51   __pragma(warning(pop)); \
     52 }
     53 
     54 void f()
     55 {
     56   __pragma() // expected-warning{{unknown pragma ignored}}
     57 // CHECK: #pragma
     58 
     59   // If we ever actually *support* __pragma(warning(disable: x)),
     60   // this warning should go away.
     61   MACRO_WITH__PRAGMA // expected-warning {{lower precedence}} \
     62                      // expected-note 2 {{place parentheses}}
     63 // CHECK: #pragma warning(push)
     64 // CHECK: #pragma warning(disable: 10000)
     65 // CHECK: ; 1 + (2 > 3) ? 4 : 5;
     66 // CHECK: #pragma warning(pop)
     67 }
     68 
     69 
     70 // This should include macro_arg_directive even though the include
     71 // is looking for test.h  This allows us to assign to "n"
     72 #pragma include_alias("test.h", "macro_arg_directive.h" )
     73 #include "test.h"
     74 void test( void ) {
     75   n = 12;
     76 }
     77 
     78 #pragma include_alias(<bar.h>, "bar.h") // expected-warning {{angle-bracketed include <bar.h> cannot be aliased to double-quoted include "bar.h"}}
     79 #pragma include_alias("foo.h", <bar.h>) // expected-warning {{double-quoted include "foo.h" cannot be aliased to angle-bracketed include <bar.h>}}
     80 #pragma include_alias("test.h") // expected-warning {{pragma include_alias expected ','}}
     81 
     82 // Make sure that the names match exactly for a replacement, including path information.  If
     83 // this were to fail, we would get a file not found error
     84 #pragma include_alias(".\pp-record.h", "does_not_exist.h")
     85 #include "pp-record.h"
     86 
     87 #pragma include_alias(12) // expected-warning {{pragma include_alias expected include filename}}
     88 
     89 // It's expected that we can map "bar" and <bar> separately
     90 #define test
     91 // We can't actually look up stdio.h because we're using cc1 without header paths, but this will ensure
     92 // that we get the right bar.h, because the "bar.h" will undef test for us, where <bar.h> won't
     93 #pragma include_alias(<bar.h>, <stdio.h>)
     94 #pragma include_alias("bar.h", "pr2086.h")  // This should #undef test
     95 
     96 #include "bar.h"
     97 #if defined(test)
     98 // This should not warn because test should not be defined
     99 #pragma include_alias("test.h")
    100 #endif
    101 
    102 // Test to make sure there are no use-after-free problems
    103 #define B "pp-record.h"
    104 #pragma include_alias("quux.h", B)
    105 void g() {}
    106 #include "quux.h"
    107 
    108 // Make sure that empty includes don't work
    109 #pragma include_alias("", "foo.h")  // expected-error {{empty filename}}
    110 #pragma include_alias(<foo.h>, <>)  // expected-error {{empty filename}}
    111 
    112 // Test that we ignore pragma warning.
    113 #pragma warning(push)
    114 // CHECK: #pragma warning(push)
    115 #pragma warning(push, 1)
    116 // CHECK: #pragma warning(push, 1)
    117 #pragma warning(disable : 4705)
    118 // CHECK: #pragma warning(disable: 4705)
    119 #pragma warning(disable : 123 456 789 ; error : 321)
    120 // CHECK: #pragma warning(disable: 123 456 789)
    121 // CHECK: #pragma warning(error: 321)
    122 #pragma warning(once : 321)
    123 // CHECK: #pragma warning(once: 321)
    124 #pragma warning(suppress : 321)
    125 // CHECK: #pragma warning(suppress: 321)
    126 #pragma warning(default : 321)
    127 // CHECK: #pragma warning(default: 321)
    128 #pragma warning(pop)
    129 // CHECK: #pragma warning(pop)
    130 #pragma warning(1: 123)
    131 // CHECK: #pragma warning(1: 123)
    132 #pragma warning(2: 234 567)
    133 // CHECK: #pragma warning(2: 234 567)
    134 #pragma warning(3: 123; 4: 678)
    135 // CHECK: #pragma warning(3: 123)
    136 // CHECK: #pragma warning(4: 678)
    137 #pragma warning(5: 123) // expected-warning {{expected 'push', 'pop', 'default', 'disable', 'error', 'once', 'suppress', 1, 2, 3, or 4}}
    138 
    139 #pragma warning(push, 0)
    140 // CHECK: #pragma warning(push, 0)
    141 // FIXME: We could probably support pushing warning level 0.
    142 #pragma warning(pop)
    143 // CHECK: #pragma warning(pop)
    144 
    145 #pragma warning  // expected-warning {{expected '('}}
    146 #pragma warning(   // expected-warning {{expected 'push', 'pop', 'default', 'disable', 'error', 'once', 'suppress', 1, 2, 3, or 4}}
    147 #pragma warning()   // expected-warning {{expected 'push', 'pop', 'default', 'disable', 'error', 'once', 'suppress', 1, 2, 3, or 4}}
    148 #pragma warning(push 4)  // expected-warning {{expected ')'}}
    149 // CHECK: #pragma warning(push)
    150 #pragma warning(push  // expected-warning {{expected ')'}}
    151 // CHECK: #pragma warning(push)
    152 #pragma warning(push, 5)  // expected-warning {{requires a level between 0 and 4}}
    153 #pragma warning(pop, 1)  // expected-warning {{expected ')'}}
    154 // CHECK: #pragma warning(pop)
    155 #pragma warning(push, 1) asdf // expected-warning {{extra tokens at end of #pragma warning directive}}
    156 // CHECK: #pragma warning(push, 1)
    157 #pragma warning(disable 4705) // expected-warning {{expected ':'}}
    158 #pragma warning(disable : 0) // expected-warning {{expected a warning number}}
    159 #pragma warning(default 321) // expected-warning {{expected ':'}}
    160 #pragma warning(asdf : 321) // expected-warning {{expected 'push', 'pop'}}
    161 #pragma warning(push, -1) // expected-warning {{requires a level between 0 and 4}}
    162 
    163 // Test that runtime_checks is parsed but ignored.
    164 #pragma runtime_checks("sc", restore) // no-warning
    165