620222 - [ANGLE] crash in ConstantUnion::getBConst with this=null, called from TIntermediate::addSelection, from yyparse

Status: RESOLVED FIXED

(Core :: Graphics: CanvasWebGL, defect)

Description

[Christoph Diehl [:posidron]]

// Shader Type: 35632
const highp bvec2 cac;
void main() { if((cac = 4294967295))for(; ; ){} }

Comment 1

[Christoph Diehl [:posidron]]

Attachment: callstack

Comment 2

[Benoit Jacob [:bjacob] (mostly away)]

Please make a directly usable test-case.

This is clearly a ANGLE bug, feel free to report directly to ANGLE, but I'm happy too to do it.

Comment 3

[Christoph Diehl [:posidron]]

Attachment: testcase

Comment 4

[Benoit Jacob [:bjacob] (mostly away)]

Forwarded as http://code.google.com/p/angleproject/issues/detail?id=239

Comment 5

[Kelsey Gilbert [:jgilbert]]

This was allegedly fixed after r1998, and we're at r2042. Is this fixed?

Comment 6

[Christoph Diehl [:posidron]]

The crash is fixed and returns now:

ERROR: 0:1: 'cac' : variables with qualifier 'const' must be initialized
ERROR: 0:2: '4294967295' : integer overflow
ERROR: 0:2: 'assign' :  l-value required (can't modify a const)
ERROR: 0:2: 'assign' :  cannot convert from 'const mediump int' to 'const highp -component vector of bool'
ERROR: 0:2: '' : boolean expression expected