http://bugs.freedesktop.org/show_bug.cgi?id=27216
Summary: Assignment with a function call in an if statement
causes an assertion failure
Product: Mesa
Version: git
Platform: Other
OS/Version: All
Status: NEW
Severity: normal
Priority: medium
Component: Mesa core
AssignedTo: [email protected]
ReportedBy: [email protected]
This GLSL fragment shader causes an assertion failure from Mesa:
void
main ()
{
float thing;
if ((thing = sqrt (5.0)) > 1.0)
gl_FragColor = vec4 (1.0, 0.0, 0.0, 1.0);
}
The assertion is "assert(index >= 0);" in storage_to_src_reg in slang_emit.c
Taking away the assignment or the function call avoids the problem. As does
moving the expression to outside the if condition.
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