35 lines
883 B
C
35 lines
883 B
C
// REQUIRES: darwin
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// RUN: %clang_pgogen -o %t.exe %s
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// RUN: env LLVM_PROFILE_FILE="%c%t.profraw" %run %t.exe %t.bad 2>&1 | FileCheck %s
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// CHECK: __llvm_profile_set_file_object(fd={{[0-9]+}}) not supported
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// CHECK: Profile data not written to file: already written.
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#include <stdio.h>
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extern int __llvm_profile_is_continuous_mode_enabled(void);
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extern void __llvm_profile_set_file_object(FILE *, int);
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extern int __llvm_profile_write_file(void);
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int main(int argc, char **argv) {
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if (!__llvm_profile_is_continuous_mode_enabled())
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return 1;
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FILE *f = fopen(argv[1], "a+b");
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if (!f)
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return 1;
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__llvm_profile_set_file_object(f, 0); // Try to set the file to "%t.bad".
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if (__llvm_profile_write_file() != 0)
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return 1;
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f = fopen(argv[1], "r");
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if (!f)
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return 1;
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fseek(f, 0, SEEK_END);
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return ftell(f); // Check that the "%t.bad" is empty.
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}
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