[Mesa-dev] [PATCH] tgsi: fix parsing nan float inputs

[Ilia Mirkin]

Signed-off-by: Ilia Mirkin <imirkin at alum.mit.edu>
---
 src/gallium/auxiliary/tgsi/tgsi_text.c | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/src/gallium/auxiliary/tgsi/tgsi_text.c b/src/gallium/auxiliary/tgsi/tgsi_text.c
index be80842..36dc979 100644
--- a/src/gallium/auxiliary/tgsi/tgsi_text.c
+++ b/src/gallium/auxiliary/tgsi/tgsi_text.c
@@ -257,8 +257,13 @@ static boolean parse_float( const char **pcur, float *val )
             cur++;
       }
    }
-   if (!integral_part && !fractional_part)
+   if (!integral_part && !fractional_part) {
+      if (uprcase(*cur++) == 'N' &&
+          uprcase(*cur++) == 'A' &&
+          uprcase(*cur++) == 'N')
+         goto out;
       return FALSE;
+   }
    if (uprcase( *cur ) == 'E') {
       cur++;
       if (*cur == '-' || *cur == '+')
-- 
2.7.3