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127f6eef7e
1. Teach Lexer that pragma lexers are like macro expansions at EOF. 2. Treat pragmas like #define/#undef when printing. 3. If we just printed a directive, add a newline before any more tokens. (4. Miscellaneous cleanup in PrintPreprocessedOutput.cpp) PR10594 and <rdar://problem/11562490> (two separate related problems) llvm-svn: 158571
48 lines
1.6 KiB
C
48 lines
1.6 KiB
C
// RUN: %clang_cc1 %s -fms-extensions -E | FileCheck %s
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// We use -fms-extensions to test both _Pragma and __pragma.
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// A long time ago the pragma lexer's buffer showed through in -E output.
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// CHECK-NOT: scratch space
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#define push_p _Pragma ("pack(push)")
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push_p
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// CHECK: #pragma pack(push)
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push_p _Pragma("pack(push)") __pragma(pack(push))
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// CHECK: #pragma pack(push)
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// CHECK-NEXT: #line 11 "{{.*}}_Pragma-location.c"
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// CHECK-NEXT: #pragma pack(push)
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// CHECK-NEXT: #line 11 "{{.*}}_Pragma-location.c"
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// CHECK-NEXT: #pragma pack(push)
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#define __PRAGMA_PUSH_NO_EXTRA_ARG_WARNINGS _Pragma("clang diagnostic push") \
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_Pragma("clang diagnostic ignored \"-Wformat-extra-args\"")
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#define __PRAGMA_POP_NO_EXTRA_ARG_WARNINGS _Pragma("clang diagnostic pop")
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void test () {
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1;_Pragma("clang diagnostic push") \
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_Pragma("clang diagnostic ignored \"-Wformat-extra-args\"")
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_Pragma("clang diagnostic pop")
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2;__PRAGMA_PUSH_NO_EXTRA_ARG_WARNINGS
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3;__PRAGMA_POP_NO_EXTRA_ARG_WARNINGS
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}
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// CHECK: void test () {
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// CHECK-NEXT: 1;
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// CHECK-NEXT: #line 24 "{{.*}}_Pragma-location.c"
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// CHECK-NEXT: #pragma clang diagnostic push
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// CHECK-NEXT: #pragma clang diagnostic ignored "-Wformat-extra-args"
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// CHECK-NEXT: #pragma clang diagnostic pop
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// CHECK: 2;
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// CHECK-NEXT: #line 28 "{{.*}}_Pragma-location.c"
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// CHECK-NEXT: #pragma clang diagnostic push
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// CHECK-NEXT: #line 28 "{{.*}}_Pragma-location.c"
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// CHECK-NEXT: #pragma clang diagnostic ignored "-Wformat-extra-args"
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// CHECK-NEXT: 3;
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// CHECK-NEXT: #line 29 "{{.*}}_Pragma-location.c"
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// CHECK-NEXT: #pragma clang diagnostic pop
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// CHECK-NEXT: }
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