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Zhaoming Jiang 0d3d3210d4 tint/writer/glsl: Support for F16 type, constructor, and convertor 
This patch make GLSL writer support emitting f16 types, f16 literals,
f16 constructor and convertor. Unittests are also implemented, and
end-to-end testcases are updated for GLSL extension requirement.

The GLSL writer will require `GL_AMD_gpu_shader_half_float` extension if
f16 WGSL extension is enabled, emit f16 literal as `1.23hf`, and map f16
types as follow:
WGSL type   -> GLSL type
f16         -> float16_t
vec2<f16>   -> f16vec2
vec3<f16>   -> f16vec3
vec4<f16>   -> f16vec4
mat2x2<f16> -> f16mat2
mat2x3<f16> -> f16mat2x3
mat2x4<f16> -> f16mat2x4
mat3x2<f16> -> f16mat3x2
mat3x3<f16> -> f16mat3
mat3x4<f16> -> f16mat3x4
mat4x2<f16> -> f16mat4x2
mat4x3<f16> -> f16mat4x3
mat4x4<f16> -> f16mat4

Bug: tint:1473, tint:1502
Change-Id: I7e788f82be2873911961c891a644200c1cbb74db
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/95684
Kokoro: Kokoro <noreply+kokoro@google.com>
Commit-Queue: Zhaoming Jiang <zhaoming.jiang@intel.com>
Reviewed-by: Ben Clayton <bclayton@google.com>
 		2022-07-11 03:02:28 +00:00
..
basic.wgsl Update src/tint unittests to new @stage format. 2022-06-07 13:55:34 +00:00
basic.wgsl.expected.glsl tint/writer/glsl: Support for F16 type, constructor, and convertor 2022-07-11 03:02:28 +00:00
basic.wgsl.expected.hlsl tint: Refactor Extensions / Enables. 2022-05-18 22:41:48 +00:00
basic.wgsl.expected.msl tint: Refactor Extensions / Enables. 2022-05-18 22:41:48 +00:00
basic.wgsl.expected.spvasm tint: Refactor Extensions / Enables. 2022-05-18 22:41:48 +00:00
basic.wgsl.expected.wgsl Update src/tint unittests to new @stage format. 2022-06-07 13:55:34 +00:00
duplicated_extensions.wgsl Update src/tint unittests to new @stage format. 2022-06-07 13:55:34 +00:00
duplicated_extensions.wgsl.expected.glsl tint/writer/glsl: Support for F16 type, constructor, and convertor 2022-07-11 03:02:28 +00:00
duplicated_extensions.wgsl.expected.hlsl tint: Refactor Extensions / Enables. 2022-05-18 22:41:48 +00:00
duplicated_extensions.wgsl.expected.msl tint: Refactor Extensions / Enables. 2022-05-18 22:41:48 +00:00
duplicated_extensions.wgsl.expected.spvasm tint: Refactor Extensions / Enables. 2022-05-18 22:41:48 +00:00
duplicated_extensions.wgsl.expected.wgsl Update src/tint unittests to new @stage format. 2022-06-07 13:55:34 +00:00