[Mesa-dev] [Bug 32031] New: loop in function causes assertion

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=32031

           Summary: loop in function causes assertion
           Product: Mesa
           Version: git
          Platform: Other
        OS/Version: All
            Status: NEW
          Severity: major
          Priority: medium
         Component: Mesa core
        AssignedTo: mesa-dev at lists.freedesktop.org
        ReportedBy: jiajia.zheng at intel.com


Below shader causes assertion on Calpella (i965) with mesa master:
shader_runner: loop_analysis.cpp:141: virtual ir_visitor_status
loop_analysis::visit(ir_loop_jump*): Assertion `!this->state.is_empty()'
failed.
Aborted (core dumped)

[require]
GL >= 2.0
GLSL >= 1.10

[vertex shader]
bool myFunc(void)
{
        int i;
        for(i = 0; i < 2; i++)
        {
                if(i < 1)
                        return true;
                else
                        return false;
        }
}

void main(void)
{
        if (myFunc())
                gl_FrontColor = vec4(0.0, 1.0, 0.0, 1.0); // green
        else
                gl_FrontColor = vec4(1.0, 0.0, 0.0, 1.0); // red

        gl_Position = gl_Vertex;
}

[test]
draw rect -1 -1 2 2
probe all rgba 0.0 1.0 0.0 1.0

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