[Mesa-dev] [Bug 29608] New: Regression crash when a function return type is invalid (following GLSL2 merge)

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=29608

           Summary: Regression crash when a function return type is
                    invalid (following GLSL2 merge)
           Product: Mesa
           Version: git
          Platform: x86 (IA32)
        OS/Version: Linux (All)
            Status: NEW
          Severity: major
          Priority: medium
         Component: Mesa core
        AssignedTo: mesa-dev at lists.freedesktop.org
        ReportedBy: cedricv at neonux.com


When a function return type is unknown/invalid the GLSL compiler crashes
instead of issuing a proper "invalid type" error.
This only occurs when the invalid type is return type of a function, not when a
function parameter is an invalid type.

Testcase :
--
foo bar()
{
}

void main()
{
    gl_Position = vec4(0.0);
}
--


Stacktrace :
#0  0xf6846a45 in ast_function_definition::hir(exec_list*,
_mesa_glsl_parse_state*) () from /usr/local/lib/dri/i965_dri.so
#1  0xf6847340 in _mesa_ast_to_hir(exec_list*, _mesa_glsl_parse_state*) () from
/usr/local/lib/dri/i965_dri.so
#2  0xf683c9fb in _mesa_glsl_compile_shader () from
/usr/local/lib/dri/i965_dri.so
#3  0xf67467c6 in _mesa_CompileShaderARB () from /usr/local/lib/dri/i965_dri.so

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