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tint/writer/spirv: Support for F16 type, constructor, and convertor

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This patch make SPIRV writer support emitting f16 types, f16 literals,
f16 constructor and convertor. Unittests are also implemented.

Currently SPIRV writer will require 4 capabilities in generated SPIRV:
`Float16`, `UniformAndStorageBuffer16BitAccess`,
`StorageBuffer16BitAccess`, and `storageInputOutput16`.

Bug: tint:1473, tint:1502
Change-Id: Ia1af04f1f4a02bf1b1c2599a5d89791854eabc16
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/95920
Kokoro: Kokoro <noreply+kokoro@google.com>
Reviewed-by: Ben Clayton <bclayton@google.com>
Commit-Queue: Zhaoming Jiang <zhaoming.jiang@intel.com>
This commit is contained in:
Zhaoming Jiang
2022-07-12 12:35:09 +00:00
committed by Dawn LUCI CQ
parent edf650caad
commit 66d4f6e6fb
9 changed files with 2198 additions and 46 deletions
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4
test/tint/extensions/parsing/basic.wgsl.expected.spvasm
View File

@@ -4,6 +4,10 @@
; Bound: 19
; Schema: 0
OpCapability Shader
OpCapability Float16
OpCapability UniformAndStorageBuffer16BitAccess
OpCapability StorageBuffer16BitAccess
OpCapability StorageInputOutput16
OpMemoryModel Logical GLSL450
OpEntryPoint Fragment %main "main" %value
OpExecutionMode %main OriginUpperLeft