From 69723be2b39c9517ebe919b6f81b9b3b78d44b0a Mon Sep 17 00:00:00 2001 From: Steven Bosscher Date: Sun, 17 Sep 2006 13:14:53 +0000 Subject: [PATCH] re PR c/25993 (-std= produces incorrect preprocessor output for .S) gcc/ PR c/25993 * c-opts.c (c_common_handle_option): Ignore the -std options if the input language is assembly. testsuite/ PR c/25993 * gcc.dg/pr25993.c: New test. From-SVN: r117005 --- gcc/ChangeLog | 6 ++++++ gcc/c-opts.c | 19 ++++++++++++++----- gcc/testsuite/ChangeLog | 5 +++++ gcc/testsuite/gcc.dg/pr25993.c | 14 ++++++++++++++ 4 files changed, 39 insertions(+), 5 deletions(-) create mode 100644 gcc/testsuite/gcc.dg/pr25993.c diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 261926af016..9cb013809ea 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,9 @@ +2006-09-17 Steven Bosscher + + PR c/25993 + * c-opts.c (c_common_handle_option): Ignore the -std options + if the input language is assembly. + 2006-09-17 Ira Rosen PR tree-opt/21591 diff --git a/gcc/c-opts.c b/gcc/c-opts.c index 2937b7995cd..5821deabb96 100644 --- a/gcc/c-opts.c +++ b/gcc/c-opts.c @@ -268,6 +268,10 @@ c_common_handle_option (size_t scode, const char *arg, int value) enum opt_code code = (enum opt_code) scode; int result = 1; + /* Prevent resetting the language standard to a C dialect when the driver + has already determined that we're looking at assembler input. */ + bool preprocessing_asm_p = (cpp_get_options (parse_in)->lang == CLK_ASM); + switch (code) { default: @@ -905,29 +909,34 @@ c_common_handle_option (size_t scode, const char *arg, int value) case OPT_std_c__98: case OPT_std_gnu__98: - set_std_cxx98 (code == OPT_std_c__98 /* ISO */); + if (!preprocessing_asm_p) + set_std_cxx98 (code == OPT_std_c__98 /* ISO */); break; case OPT_std_c89: case OPT_std_iso9899_1990: case OPT_std_iso9899_199409: - set_std_c89 (code == OPT_std_iso9899_199409 /* c94 */, true /* ISO */); + if (!preprocessing_asm_p) + set_std_c89 (code == OPT_std_iso9899_199409 /* c94 */, true /* ISO */); break; case OPT_std_gnu89: - set_std_c89 (false /* c94 */, false /* ISO */); + if (!preprocessing_asm_p) + set_std_c89 (false /* c94 */, false /* ISO */); break; case OPT_std_c99: case OPT_std_c9x: case OPT_std_iso9899_1999: case OPT_std_iso9899_199x: - set_std_c99 (true /* ISO */); + if (!preprocessing_asm_p) + set_std_c99 (true /* ISO */); break; case OPT_std_gnu99: case OPT_std_gnu9x: - set_std_c99 (false /* ISO */); + if (!preprocessing_asm_p) + set_std_c99 (false /* ISO */); break; case OPT_trigraphs: diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog index 89cc01b37f1..0864aeb373e 100644 --- a/gcc/testsuite/ChangeLog +++ b/gcc/testsuite/ChangeLog @@ -1,3 +1,8 @@ +2006-09-16 Steven Bosscher + + PR c/25993 + * gcc.dg/pr25993.c: New test. + 2006-09-17 Ira Rosen PR tree-opt/21591 diff --git a/gcc/testsuite/gcc.dg/pr25993.c b/gcc/testsuite/gcc.dg/pr25993.c new file mode 100644 index 00000000000..392bbedfeb1 --- /dev/null +++ b/gcc/testsuite/gcc.dg/pr25993.c @@ -0,0 +1,14 @@ +/* { dg-do assemble { target i?86-*-* x86_64-*-* } } */ +/* { dg-options "-std=c99 -x assembler-with-cpp" } */ + +#ifndef __ASSEMBLER__ +extern int func(void); +#else +.global func +.type func,%function +.align 4 +func: + ret +.size func,.-func +#endif +