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Add parse-time constant folding for isinf() and isnan().

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git-svn-id: https://cvs.khronos.org/svn/repos/ogl/trunk/ecosystem/public/sdk/tools/glslang@22621 e7fa87d3-cd2b-0410-9028-fcbf551c1848
This commit is contained in:
John Kessenich
2013-08-06 20:22:51 +00:00
parent af262433ab
commit 1b42f2a33d
3 changed files with 119 additions and 73 deletions
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6
Test/constFold.frag
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@@ -20,7 +20,9 @@ out vec3 out6;
out vec4 out7;
out vec4 out8;
out vec4 out9;
out vec4 out10;
out vec4 out11;
void main()
{
vec4 dx = dFdx(inv);
@@ -44,4 +46,6 @@ void main()
out7 = vec4(floor(4.2), ceil(-4.1), trunc(5.9), trunc(-5.9)); // 4, -4, 5, -5
out8 = vec4(round(4.4), round(4.6), roundEven(4.5), roundEven(-5.5)); // 4, 5, 4, -6
out9 = vec4(roundEven(7.5), roundEven(-4.5), fract(2.345), fract(-2.6)); // 8, -4, .345, 0.4
out10 = vec4(isinf(4.0/0.0), isinf(-3.0/0.0), isinf(0.0/0.0), isinf(-93048593405938405938405.0)); // true, true, false, false -> 1.0, 1.0, 0.0, 0.0
out11 = vec4(isnan(4.0/0.0), isnan(-3.0/0.0), isnan(0.0/0.0), isnan(-93048593405938405938405.0)); // false, false, true, false -> 0.0, 1.0, 0.0, 0.0
}