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Add constant folding for length(), normalize(), fwidth(), dFdx(), and dFdy().

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git-svn-id: https://cvs.khronos.org/svn/repos/ogl/trunk/ecosystem/public/sdk/tools/glslang@21918 e7fa87d3-cd2b-0410-9028-fcbf551c1848
This commit is contained in:
John Kessenich
2013-06-10 07:37:49 +00:00
parent 00f605b930
commit 50a8cabbbb
2 changed files with 41 additions and 11 deletions
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4
Test/constFold.frag
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@@ -8,8 +8,11 @@ const float e = float(d); // 2.0
const float f = e * float(c); // 6.0
const float g = f / float(d); // 3.0
const vec2 pytho = vec2(3.0, 4.0);
in vec4 inv;
out vec4 FragColor;
out vec2 out2;
void main()
{
@@ -26,4 +29,5 @@ void main()
vec4 arrayMax[int(max(float(array2.length()), float(array3.length())))];
vec4 arrayMin[int(min(float(array2.length()), float(array3.length())))];
FragColor = vec4(arrayMax.length(), arrayMin.length(), sin(3.14), cos(3.14)); // 3, 2, .00159, -.999
out2 = length(pytho) + normalize(pytho) + dFdx(pytho) + dFdy(pytho) + fwidth(pytho); // 5+3/5, 5+4/5
}