[Bug 80266] New: Undefined operation in tgsi_ureg.c left shift of 1 by 31 places cannot be represented in type 'int' - bugzilla-daemon-CC+yJ3UmIYqDUpFQwHEjaQ

From: bugzilla-daemon-CC+yJ3UmIYqDUpFQwHEjaQ@public.gmane.org
To: nouveau-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org
Subject: [Bug 80266] New: Undefined operation in tgsi_ureg.c left shift of 1 by 31 places cannot be represented in type 'int'
Date: Fri, 20 Jun 2014 05:46:58 +0000	[thread overview]
Message-ID: <bug-80266-8800@http.bugs.freedesktop.org/> (raw)


[-- Attachment #1.1: Type: text/plain, Size: 980 bytes --]

https://bugs.freedesktop.org/show_bug.cgi?id=80266

          Priority: medium
            Bug ID: 80266
          Assignee: nouveau-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org
           Summary: Undefined operation in tgsi_ureg.c left shift of 1 by
                    31 places cannot be represented in type 'int'
          Severity: minor
    Classification: Unclassified
                OS: Linux (All)
          Reporter: zeccav-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org
          Hardware: x86-64 (AMD64)
            Status: NEW
           Version: 10.2
         Component: Drivers/DRI/nouveau
           Product: Mesa

In tgsi_ureg.c:1498
"if (ureg->vs_inputs[i/32] & (1 << (i%32))) {"
when i==31 then 1 << 31 may be computed.
With gcc option -std=c99 this is wrong because the result cannot be int.

Perhaps the right instruction is
"if (ureg->vs_inputs[i/32] & ((unsigned) 1 << (i%32))) {"

-- 
You are receiving this mail because:
You are the assignee for the bug.

[-- Attachment #1.2: Type: text/html, Size: 2309 bytes --]

[-- Attachment #2: Type: text/plain, Size: 181 bytes --]

_______________________________________________
Nouveau mailing list
Nouveau-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org
http://lists.freedesktop.org/mailman/listinfo/nouveau