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150
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1 // Test this without pch.
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2 // RUN: %clang_cc1 %s -include %s -verify -fsyntax-only
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3
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4 // Test with pch.
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5 // RUN: %clang_cc1 %s -emit-pch -o %t
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6 // RUN: %clang_cc1 %s -emit-llvm -include-pch %t -o - | FileCheck %s
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7
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8 // The first run line creates a pch, and since at that point HEADER is not
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9 // defined, the only thing contained in the pch is the pragma. The second line
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10 // then includes that pch, so HEADER is defined and the actual code is compiled.
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11 // The check then makes sure that the pragma is in effect in the file that
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12 // includes the pch.
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13
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14 // expected-no-diagnostics
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15
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16 #ifndef HEADER
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17 #define HEADER
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18 #pragma clang optimize off
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19
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20 #else
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21
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22 int a;
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23
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236
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24 void f(void) {
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150
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25 a = 12345;
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26 }
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27
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28 // Check that the function is decorated with optnone
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29
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30 // CHECK-DAG: @f() [[ATTRF:#[0-9]+]]
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31 // CHECK-DAG: attributes [[ATTRF]] = { {{.*}}noinline{{.*}}optnone{{.*}} }
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32
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33 #endif
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