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Improve overflow_underflow_toinf_0 test somewhat

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Add test cases that will make explicit ±0.0 and ±INF appear in the AST
output to make sure those cases are handled correctly.
This commit is contained in:
Arcady Goldmints-Orlov 2023-11-29 19:22:10 -05:00 • committed by arcady-lunarg
parent a187f47e2c
commit a1138bacff
2 changed files with 38 additions and 21 deletions
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40
Test/baseResults/overflow_underflow_toinf_0.frag.out
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@ -14,15 +14,23 @@ Shader version: 320
0:10 'correct1' ( temp highp float)
0:10 Constant:
0:10 1.000000
0:11 Sequence
0:11 move second child to first child ( temp highp 4-component vector of float)
0:11 'my_FragColor' ( out highp 4-component vector of float)
0:11 Construct vec4 ( temp highp 4-component vector of float)
0:11 'foo' ( temp highp 4-component vector of float)
0:11 Constant:
0:11 0.000000
0:11 'correct' ( temp highp float)
0:11 'correct1' ( temp highp float)
0:11 Constant:
0:11 1.000000
0:11 -0.000000
0:11 +1.#INF
0:11 -1.#INF
0:12 move second child to first child ( temp highp 4-component vector of float)
0:12 'my_FragColor' ( out highp 4-component vector of float)
0:12 Construct vec4 ( temp highp 4-component vector of float)
0:12 Constant:
0:12 0.000000
0:12 'correct' ( temp highp float)
0:12 'correct1' ( temp highp float)
0:12 Constant:
0:12 1.000000
0:? Linker Objects
0:? 'my_FragColor' ( out highp 4-component vector of float)
@ -45,15 +53,23 @@ Shader version: 320
0:10 'correct1' ( temp highp float)
0:10 Constant:
0:10 1.000000
0:11 Sequence
0:11 move second child to first child ( temp highp 4-component vector of float)
0:11 'my_FragColor' ( out highp 4-component vector of float)
0:11 Construct vec4 ( temp highp 4-component vector of float)
0:11 'foo' ( temp highp 4-component vector of float)
0:11 Constant:
0:11 0.000000
0:11 'correct' ( temp highp float)
0:11 'correct1' ( temp highp float)
0:11 Constant:
0:11 1.000000
0:11 -0.000000
0:11 +1.#INF
0:11 -1.#INF
0:12 move second child to first child ( temp highp 4-component vector of float)
0:12 'my_FragColor' ( out highp 4-component vector of float)
0:12 Construct vec4 ( temp highp 4-component vector of float)
0:12 Constant:
0:12 0.000000
0:12 'correct' ( temp highp float)
0:12 'correct1' ( temp highp float)
0:12 Constant:
0:12 1.000000
0:? Linker Objects
0:? 'my_FragColor' ( out highp 4-component vector of float)

13
Test/overflow_underflow_toinf_0.frag
View file

@ -1,12 +1,13 @@
#version 320 es
precision highp float;
out vec4 my_FragColor;
void main()
{
#version 320 es
precision highp float;
out vec4 my_FragColor;
void main()
{
// GLSL ES 3.00.6 section 4.1.4 Floats:
// "A value with a magnitude too small to be represented as a mantissa and exponent is converted to zero."
// 1.0e-50 is small enough that it can't even be stored as subnormal.
float correct = (1.0e-50 == 0.0) ? 1.0 : 0.0;
float correct1 = isinf(1.0e40) ? 1.0 : 0.0;
vec4 foo = vec4(1.0e-50, -1.0e-50, 1.0e50, -1.0e50);
my_FragColor = vec4(0.0, correct, correct1, 1.0);
}
}