1 // Check that clang is able to process short response files 2 // Since this is a short response file, clang must not use a response file 3 // to pass its parameters to other tools. This is only necessary for a large 4 // number of parameters. 5 // RUN: echo "-DTEST" > %t.0.txt 6 // RUN: %clang -E @%t.0.txt %s -v 2>&1 | FileCheck %s -check-prefix=SHORT 7 // SHORT-NOT: Arguments passed via response file 8 // SHORT: extern int it_works; 9 10 // Check that clang is able to process long response files, routing a long 11 // sequence of arguments to other tools by using response files as well. 12 // We generate a 2MB response file to attempt to surpass any system limit. 13 // But there's no guarantee that we actually will (the system limit could be 14 // *huge*), so just check that invoking cc1 succeeds under these conditions. 15 // 16 // RUN: %clang -E %S/Inputs/gen-response.c | grep DTEST > %t.1.txt 17 // RUN: %clang -E @%t.1.txt %s -v 2>&1 | FileCheck %s -check-prefix=LONG 18 // LONG: extern int it_works; 19 20 #ifdef TEST 21 extern int it_works; 22 #endif 23