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1 // Test that diagnostic mappings are emitted only when needed and in order of
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2 // diagnostic ID rather than non-deterministically. This test passes 3
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3 // -W options and expects exactly 3 mappings to be emitted in the pcm. The -W
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4 // options are chosen to be far apart in ID (see DiagnosticIDs.h) so we can
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5 // check they are ordered. We also intentionally trigger several other warnings
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6 // inside the module and ensure they do not show up in the pcm as mappings.
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7
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8 // RUN: rm -rf %t
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9 // RUN: split-file %s %t
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10
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11 // RUN: %clang_cc1 -fmodules -fimplicit-module-maps \
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12 // RUN: -fmodules-cache-path=%t/cache -triple x86_64-apple-macosx10.11.0 \
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13 // RUN: %t/main.m -fdisable-module-hash \
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14 // RUN: -Werror=stack-protector -Werror=empty-translation-unit -Werror=float-equal
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15
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16 // RUN: mv %t/cache/A.pcm %t/A1.pcm
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17
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18 // RUN: llvm-bcanalyzer --dump --disable-histogram %t/A1.pcm | FileCheck %s
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19
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20 // CHECK: <DIAG_PRAGMA_MAPPINGS
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21
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22 // == Initial mappings
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23 // Number of mappings = 3
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24 // CHECK-SAME: op2=3
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25 // Common diag id is < 1000 (see DiagnosticIDs.h)
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26 // CHECK-SAME: op3=[[STACK_PROT:[0-9][0-9]?[0-9]?]] op4=
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27 // Parse diag id is somewhere in 1000..2999, leaving room for changes
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28 // CHECK-SAME: op5=[[EMPTY_TU:[12][0-9][0-9][0-9]]] op6=
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29 // Sema diag id is > 2000
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30 // CHECK-SAME: op7=[[FLOAT_EQ:[2-9][0-9][0-9][0-9]]] op8=
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31
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32 // == Pragmas:
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33 // Each pragma creates a mapping table; and each copies the previous table. The
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34 // initial mappings are copied as well, but are not serialized since they have
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35 // isPragma=false.
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36
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37 // == ignored "-Wfloat-equal"
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38 // CHECK-SAME: op{{[0-9]+}}=1
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39 // CHECK-SAME: op{{[0-9]+}}=[[FLOAT_EQ]] op{{[0-9]+}}=
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40
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41 // == ignored "-Wstack-protector"
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42 // CHECK-SAME: op{{[0-9]+}}=2
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43 // CHECK-SAME: op{{[0-9]+}}=[[STACK_PROT]] op{{[0-9]+}}=
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44 // CHECK-SAME: op{{[0-9]+}}=[[FLOAT_EQ]] op{{[0-9]+}}=
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45
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46 // == warning "-Wempty-translation-unit"
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47 // CHECK-SAME: op{{[0-9]+}}=3
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48 // CHECK-SAME: op{{[0-9]+}}=[[STACK_PROT]] op{{[0-9]+}}=
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49 // CHECK-SAME: op{{[0-9]+}}=[[EMPTY_TU]] op{{[0-9]+}}=
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50 // CHECK-SAME: op{{[0-9]+}}=[[FLOAT_EQ]] op{{[0-9]+}}=
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51
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52 // == warning "-Wstack-protector"
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53 // CHECK-SAME: op{{[0-9]+}}=3
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54 // CHECK-SAME: op{{[0-9]+}}=[[STACK_PROT]] op{{[0-9]+}}=
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55 // CHECK-SAME: op{{[0-9]+}}=[[EMPTY_TU]] op{{[0-9]+}}=
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56 // CHECK-SAME: op{{[0-9]+}}=[[FLOAT_EQ]] op{{[0-9]+}}=
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57
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58 // RUN: %clang_cc1 -fmodules -fimplicit-module-maps \
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59 // RUN: -fmodules-cache-path=%t/cache -triple x86_64-apple-macosx10.11.0 \
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60 // RUN: %t/main.m -fdisable-module-hash \
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61 // RUN: -Werror=stack-protector -Werror=empty-translation-unit -Werror=float-equal
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62
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63 // RUN: diff %t/cache/A.pcm %t/A1.pcm
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64
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65 //--- module.modulemap
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66 module A { header "a.h" }
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67
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68 //--- a.h
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69 // Lex warning
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70 #warning "w"
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71
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72 static inline void f() {
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73 // Parse warning
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74 ;
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75 }
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76
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77 #pragma clang diagnostic push
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78 #pragma clang diagnostic ignored "-Wfloat-equal"
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79 #pragma clang diagnostic ignored "-Wstack-protector"
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80
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81 static inline void g() {
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82 // Sema warning
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83 int x;
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84 }
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85
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86 #pragma clang diagnostic push
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87 #pragma clang diagnostic warning "-Wempty-translation-unit"
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88 #pragma clang diagnostic warning "-Wstack-protector"
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89
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90 #pragma clang diagnostic pop
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91 #pragma clang diagnostic pop
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92
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93 //--- main.m
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94 #import "a.h"
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