loongarch: Add block 'safefloat' and nanbox_s()

Some LoongArch instructions don't care the high 32bit,
so use nanbox_s() set the high 32bit 0xffffffff.

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Song Gao <gaosong@loongson.cn>
Message-id: 20221013082854.878546-6-gaosong@loongson.cn
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>

1 files changed, 1 insertions, 1 deletions

diff --git a/risugen b/risugen
index e690b18..fa94a39 100755
--- a/risugen
+++ b/risugen
@@ -43,7 +43,7 @@ my @pattern_re = ();            # include pattern
 my @not_pattern_re = ();        # exclude pattern
 
 # Valid block names (keys in blocks hash)
-my %valid_blockname = ( constraints => 1, memory => 1 );
+my %valid_blockname = ( constraints => 1, memory => 1, safefloat =>1 );
 
 sub parse_risu_directive($$@)
 {