Bug 25826 - [GLSL] declaring an unsized array then re-declaring with a size fails
Summary: [GLSL] declaring an unsized array then re-declaring with a size fails
Status: VERIFIED FIXED
Alias: None
Product: Mesa
Classification: Unclassified
Component: Mesa core (show other bugs)
Version: git
Hardware: All All
: medium normal
Assignee: Ian Romanick
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Blocks: 25664 29044
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Reported: 2009-12-29 19:15 UTC by Gordon Jin
Modified: 2010-08-18 19:25 UTC (History)
1 user (show)

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Description Gordon Jin 2009-12-29 19:15:07 UTC 
GLSL spec (1.10 to 1.50) 4.1.9 says:
It is legal to declare an array without a size and then later re-declare the same name as an array of the same type and specify a size.

But below code fails to compile:
        float array[];
        float array[2];

This impacts piglit/tests/glslparsertest/shaders/CorrectUnsizedArray.frag: Error: declaration of 'gl_TexCoord' conflicts with previous declaration

This bug is probably related to bug#25664. I'm cautiously using depend/block relationship, but they may be fixed together.
Comment 1 Eric Anholt 2010-08-17 09:13:40 UTC 
Fixed with glsl2 merge.
Comment 2 Gordon Jin 2010-08-18 19:25:47 UTC 
verified with mesa master d442a01ac14382d83cdaac87d2832315ceb3e963

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(provided by the Example extension).