gdb, testsuite: Enable testcases that suppress specific warnings, for icc/icx.

To cite gdb.exp:
Some C/C++ testcases unconditionally pass -Wno-foo as additional
options to disable some warning.  That is OK with GCC, because
by design, GCC accepts any -Wno-foo option, even if it doesn't
support -Wfoo.  Clang however warns about unknown -Wno-foo by
default, unless you pass -Wno-unknown-warning-option as well.
We do that here, so that individual testcases don't have to
worry about it.

This patch adds the same option that already exists for clang for icx and
adds the equivalent icc option.

diff --git a/gdb/testsuite/lib/gdb.exp b/gdb/testsuite/lib/gdb.exp
index ef34983bb519532276d9bcd98468a942764fb7f9..17523f829964ac35e426b80d9457b13574152304 100644 (file)
--- a/gdb/testsuite/lib/gdb.exp
+++ b/gdb/testsuite/lib/gdb.exp
@@ -4489,9 +4489,13 @@ proc gdb_compile {source dest type options} {
        && [lsearch -exact $options rust] == -1
        && [lsearch -exact $options ada] == -1
        && [lsearch -exact $options f90] == -1
-       && [lsearch -exact $options go] == -1
-       && [test_compiler_info "clang-*"]} {
-       lappend new_options "additional_flags=-Wno-unknown-warning-option"
+       && [lsearch -exact $options go] == -1} {
+       if {[test_compiler_info "clang-*"] || [test_compiler_info "icx-*"]} {
+           lappend new_options "additional_flags=-Wno-unknown-warning-option"
+       } elseif {[test_compiler_info "icc-*"]} {
+           # This is the equivalent for the icc compiler.
+           lappend new_options "additional_flags=-diag-disable=10148"
+       }
     }
 
     # Treating .c input files as C++ is deprecated in Clang, so