95 lines
3 KiB
C
95 lines
3 KiB
C
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// Test that diagnostic mappings are emitted only when needed and in order of
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// diagnostic ID rather than non-deterministically. This test passes 3
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// -W options and expects exactly 3 mappings to be emitted in the pcm. The -W
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// options are chosen to be far apart in ID (see DiagnosticIDs.h) so we can
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// check they are ordered. We also intentionally trigger several other warnings
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// inside the module and ensure they do not show up in the pcm as mappings.
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// RUN: rm -rf %t
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// RUN: split-file %s %t
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// RUN: %clang_cc1 -fmodules -fimplicit-module-maps \
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// RUN: -fmodules-cache-path=%t/cache -triple x86_64-apple-macosx10.11.0 \
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// RUN: %t/main.m -fdisable-module-hash \
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// RUN: -Werror=stack-protector -Werror=empty-translation-unit -Werror=float-equal
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// RUN: mv %t/cache/A.pcm %t/A1.pcm
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// RUN: llvm-bcanalyzer --dump --disable-histogram %t/A1.pcm | FileCheck %s
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// CHECK: <DIAG_PRAGMA_MAPPINGS
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// == Initial mappings
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// Number of mappings = 3
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// CHECK-SAME: op2=3
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// Common diag id is < 1000 (see DiagnosticIDs.h)
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// CHECK-SAME: op3=[[STACK_PROT:[0-9][0-9]?[0-9]?]] op4=
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// Parse diag id is somewhere in 1000..2999, leaving room for changes
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// CHECK-SAME: op5=[[EMPTY_TU:[12][0-9][0-9][0-9]]] op6=
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// Sema diag id is > 2000
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// CHECK-SAME: op7=[[FLOAT_EQ:[2-9][0-9][0-9][0-9]]] op8=
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// == Pragmas:
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// Each pragma creates a mapping table; and each copies the previous table. The
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// initial mappings are copied as well, but are not serialized since they have
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// isPragma=false.
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// == ignored "-Wfloat-equal"
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// CHECK-SAME: op{{[0-9]+}}=1
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// CHECK-SAME: op{{[0-9]+}}=[[FLOAT_EQ]] op{{[0-9]+}}=
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// == ignored "-Wstack-protector"
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// CHECK-SAME: op{{[0-9]+}}=2
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// CHECK-SAME: op{{[0-9]+}}=[[STACK_PROT]] op{{[0-9]+}}=
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// CHECK-SAME: op{{[0-9]+}}=[[FLOAT_EQ]] op{{[0-9]+}}=
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// == warning "-Wempty-translation-unit"
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// CHECK-SAME: op{{[0-9]+}}=3
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// CHECK-SAME: op{{[0-9]+}}=[[STACK_PROT]] op{{[0-9]+}}=
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// CHECK-SAME: op{{[0-9]+}}=[[EMPTY_TU]] op{{[0-9]+}}=
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// CHECK-SAME: op{{[0-9]+}}=[[FLOAT_EQ]] op{{[0-9]+}}=
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// == warning "-Wstack-protector"
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// CHECK-SAME: op{{[0-9]+}}=3
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// CHECK-SAME: op{{[0-9]+}}=[[STACK_PROT]] op{{[0-9]+}}=
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// CHECK-SAME: op{{[0-9]+}}=[[EMPTY_TU]] op{{[0-9]+}}=
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// CHECK-SAME: op{{[0-9]+}}=[[FLOAT_EQ]] op{{[0-9]+}}=
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// RUN: %clang_cc1 -fmodules -fimplicit-module-maps \
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// RUN: -fmodules-cache-path=%t/cache -triple x86_64-apple-macosx10.11.0 \
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// RUN: %t/main.m -fdisable-module-hash \
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// RUN: -Werror=stack-protector -Werror=empty-translation-unit -Werror=float-equal
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// RUN: diff %t/cache/A.pcm %t/A1.pcm
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//--- module.modulemap
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module A { header "a.h" }
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//--- a.h
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// Lex warning
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#warning "w"
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static inline void f() {
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// Parse warning
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;
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}
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#pragma clang diagnostic push
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#pragma clang diagnostic ignored "-Wfloat-equal"
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#pragma clang diagnostic ignored "-Wstack-protector"
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static inline void g() {
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// Sema warning
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int x;
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}
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#pragma clang diagnostic push
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#pragma clang diagnostic warning "-Wempty-translation-unit"
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#pragma clang diagnostic warning "-Wstack-protector"
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#pragma clang diagnostic pop
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#pragma clang diagnostic pop
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//--- main.m
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#import "a.h"
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