[gcc r13-6872] lto/109263 - lto-wrapper and -g0 -ggdb

[gcc r13-6872] lto/109263 - lto-wrapper and -g0 -ggdb

[Richard Biener]

https://gcc.gnu.org/g:4cbd5ef0350d8ab04993eb4c48ab80999fb4f358

commit r13-6872-g4cbd5ef0350d8ab04993eb4c48ab80999fb4f358
Author: Richard Biener <rguenther@suse.de>
Date:   Thu Mar 23 16:56:53 2023 +0100

    lto/109263 - lto-wrapper and -g0 -ggdb
    
    The following makes lto-wrapper deal with non-combined debug
    disabling / enabling option combinations properly.  Interestingly
    -gno-dwarf also enables debug.
    
            PR lto/109263
            * lto-wrapper.cc (run_gcc): Parse alternate debug options
            as well, they always enable debug.

Diff:
---
 gcc/lto-wrapper.cc | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/gcc/lto-wrapper.cc b/gcc/lto-wrapper.cc
index fe8c5f6e80d..5186d040ce0 100644
--- a/gcc/lto-wrapper.cc
+++ b/gcc/lto-wrapper.cc
@@ -1564,6 +1564,16 @@ run_gcc (unsigned argc, char *argv[])
 	  skip_debug = option->arg && !strcmp (option->arg, "0");
 	  break;
 
+	case OPT_gbtf:
+	case OPT_gctf:
+	case OPT_gdwarf:
+	case OPT_gdwarf_:
+	case OPT_ggdb:
+	case OPT_gvms:
+	  /* Negative forms, if allowed, enable debug info as well.  */
+	  skip_debug = false;
+	  break;
+
 	case OPT_dumpdir:
 	  incoming_dumppfx = dumppfx = option->arg;
 	  break;