[gcc r13-5752] lto-wrapper: Pass through -funwind-tables and -fasynchronous-unwind-tables

[gcc r13-5752] lto-wrapper: Pass through -funwind-tables and -fasynchronous-unwind-tables

[Andreas Schwab]

https://gcc.gnu.org/g:9453e3cd0ffd0c377a648b83a9a5fdc5809e60d7

commit r13-5752-g9453e3cd0ffd0c377a648b83a9a5fdc5809e60d7
Author: Andreas Schwab <schwab@suse.de>
Date:   Tue Jan 17 16:47:13 2023 +0100

    lto-wrapper: Pass through -funwind-tables and -fasynchronous-unwind-tables
    
    The -funwind-tables and -fasynchronous-unwind-tables options are relevant
    for the output pass, so they need to be passed through by the LTO wrapper.
    Otherwise, dwarf2out_assembly_start may output a ".cfi_sections
    .debug_frame" directive when debug info is enabled even if every
    translation unit was compiled with -funwind-tables.
    
    gcc/
            * lto-wrapper.cc (merge_and_complain): Handle
            -funwind-tables and -fasynchronous-unwind-tables.
            (append_compiler_options): Likewise.

Diff:
---
 gcc/lto-wrapper.cc | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/gcc/lto-wrapper.cc b/gcc/lto-wrapper.cc
index 11c4d1b38a4..fe8c5f6e80d 100644
--- a/gcc/lto-wrapper.cc
+++ b/gcc/lto-wrapper.cc
@@ -335,6 +335,8 @@ merge_and_complain (vec<cl_decoded_option> &decoded_options,
 
 	case OPT_fopenmp:
 	case OPT_fopenacc:
+	case OPT_fasynchronous_unwind_tables:
+	case OPT_funwind_tables:
 	  /* For selected options we can merge conservatively.  */
 	  if (existing_opt == -1)
 	    decoded_options.safe_push (*foption);
@@ -737,6 +739,8 @@ append_compiler_options (obstack *argv_obstack, vec<cl_decoded_option> opts)
 	case OPT_fopenacc_dim_:
 	case OPT_foffload_abi_:
 	case OPT_fcf_protection_:
+	case OPT_fasynchronous_unwind_tables:
+	case OPT_funwind_tables:
 	case OPT_g:
 	case OPT_O:
 	case OPT_Ofast: