http://bugs.freedesktop.org/show_bug.cgi?id=15061
Summary: Invalid OPCODE in assembly for x86_64
Product: Mesa
Version: CVS
Platform: x86-64 (AMD64)
OS/Version: Linux (All)
Status: NEW
Severity: normal
Priority: medium
Component: Mesa core
AssignedTo: [email protected]
ReportedBy: [EMAIL PROTECTED]
Created an attachment (id=15185)
--> (http://bugs.freedesktop.org/attachment.cgi?id=15185)
Backtrace and disassembly
System: Ubuntu 8.04 development version amd64 arch.
CPU: Intel Core2 Duo
Graphics: Intel i945
The file src/mesa/x86-64/xform4.S in Mesa contains at least one Opcode that is
AMD-specific (pfmul, pfadd is 3DNow only). Since x86_64 is no longer
AMD-specific this causes an invalid opcode exception and the program crashes.
I'll attach a backtrace + disassembly showing where the problem appears.
To reproduce:
Run any opengl-app that uses _mesa_x86_64_transform_points4_3d_no_rot on a
x86-64 machine, with 64-bit userland and an Intel CPU.
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