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150
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1 // RUN: %clang_cc1 -triple i386-pc-linux-gnu -emit-llvm -o - %s | FileCheck %s
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2
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3 // CHECK: @foo
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4
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5 // Make sure we mangle overloadable, even in C system headers.
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6 # 1 "somesystemheader.h" 1 3 4
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7 // CHECK: @_Z2f0i
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8 void __attribute__((__overloadable__)) f0(int a) {}
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9 // CHECK: @_Z2f0l
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10 void __attribute__((__overloadable__)) f0(long b) {}
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11
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12 // Unless it's unmarked.
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13 // CHECK: @f0
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14 void f0(float b) {}
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15
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16 // CHECK: @bar
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17
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18 // These should get merged.
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19 void foo() __asm__("bar");
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20 void foo2() __asm__("bar");
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21
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22 int nux __asm__("foo");
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23 extern float nux2 __asm__("foo");
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24
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25 int test() {
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26 foo();
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27 foo2();
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28
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29 return nux + nux2;
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30 }
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31
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32
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33 // Function becomes a variable.
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34 void foo3() __asm__("var");
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35
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36 void test2() {
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37 foo3();
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38 }
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39 int foo4 __asm__("var") = 4;
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40
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41
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42 // Variable becomes a function
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43 extern int foo5 __asm__("var2");
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44
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45 void test3() {
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46 foo5 = 1;
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47 }
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48
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49 void foo6() __asm__("var2");
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50 void foo6() {
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51 }
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52
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53
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54
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55 int foo7 __asm__("foo7") __attribute__((used));
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56 float foo8 __asm__("foo7") = 42;
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57
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58 // PR4412
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59 int func(void);
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60 extern int func (void) __asm__ ("FUNC");
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61
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62 // CHECK: @FUNC
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63 int func(void) {
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64 return 42;
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65 }
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66
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67 // CHECK: @_Z4foo9Dv4_f
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68 typedef __attribute__(( vector_size(16) )) float float4;
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69 void __attribute__((__overloadable__)) foo9(float4 f) {}
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70
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71 // Intrinsic calls.
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72 extern int llvm_cas(volatile int*, int, int)
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73 __asm__("llvm.atomic.cmp.swap.i32.p0i32");
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74
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75 int foo10(volatile int* add, int from, int to) {
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76 // CHECK: call i32 @llvm.atomic.cmp.swap.i32.p0i32
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77 return llvm_cas(add, from, to);
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78 }
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