Zhaoming Jiang 7d7976d590 tint: Add end-to-end tests for expressions using f16 types
This patch add DXC compile flag "-enable-16bit-types" and change profile
to SM6.2 when validating generated HLSL using DXC if f16 extension is
enabled in the WGSL program.
The patch add Tint end-to-end test cases for expressions using f16 type,
including constructor, binary operator, splat, zero-init, and others.
Testcases that use f16 types in uniform or storage buffer are SKIPped,
because such usage is not implemented yet.

Bug: tint:1473, tint:1502
Change-Id: I481ab3d12cbb822f11ef85ba807bca3f9770089b
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/96252
Kokoro: Kokoro <noreply+kokoro@google.com>
Reviewed-by: Ben Clayton <bclayton@chromium.org>
Commit-Queue: Zhaoming Jiang <zhaoming.jiang@intel.com>
2022-08-03 08:45:25 +00:00

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; SPIR-V
; Version: 1.3
; Generator: Google Tint Compiler; 0
; Bound: 36
; Schema: 0
OpCapability Shader
OpCapability Float16
OpCapability UniformAndStorageBuffer16BitAccess
OpCapability StorageBuffer16BitAccess
OpCapability StorageInputOutput16
OpMemoryModel Logical GLSL450
OpEntryPoint GLCompute %f "f"
OpExecutionMode %f LocalSize 1 1 1
OpName %f "f"
%void = OpTypeVoid
%1 = OpTypeFunction %void
%half = OpTypeFloat 16
%v4half = OpTypeVector %half 4
%mat2v4half = OpTypeMatrix %v4half 2
%half_0x1p_0 = OpConstant %half 0x1p+0
%half_0x1p_1 = OpConstant %half 0x1p+1
%half_0x1_8p_1 = OpConstant %half 0x1.8p+1
%half_0x1p_2 = OpConstant %half 0x1p+2
%12 = OpConstantComposite %v4half %half_0x1p_0 %half_0x1p_1 %half_0x1_8p_1 %half_0x1p_2
%half_0x1_4p_2 = OpConstant %half 0x1.4p+2
%half_0x1_8p_2 = OpConstant %half 0x1.8p+2
%half_0x1_cp_2 = OpConstant %half 0x1.cp+2
%half_0x1p_3 = OpConstant %half 0x1p+3
%17 = OpConstantComposite %v4half %half_0x1_4p_2 %half_0x1_8p_2 %half_0x1_cp_2 %half_0x1p_3
%18 = OpConstantComposite %mat2v4half %12 %17
%v2half = OpTypeVector %half 2
%mat4v2half = OpTypeMatrix %v2half 4
%half_n0x1p_0 = OpConstant %half -0x1p+0
%half_n0x1p_1 = OpConstant %half -0x1p+1
%23 = OpConstantComposite %v2half %half_n0x1p_0 %half_n0x1p_1
%half_n0x1_8p_1 = OpConstant %half -0x1.8p+1
%half_n0x1p_2 = OpConstant %half -0x1p+2
%26 = OpConstantComposite %v2half %half_n0x1_8p_1 %half_n0x1p_2
%half_n0x1_4p_2 = OpConstant %half -0x1.4p+2
%half_n0x1_8p_2 = OpConstant %half -0x1.8p+2
%29 = OpConstantComposite %v2half %half_n0x1_4p_2 %half_n0x1_8p_2
%half_n0x1_cp_2 = OpConstant %half -0x1.cp+2
%half_n0x1p_3 = OpConstant %half -0x1p+3
%32 = OpConstantComposite %v2half %half_n0x1_cp_2 %half_n0x1p_3
%33 = OpConstantComposite %mat4v2half %23 %26 %29 %32
%mat4v4half = OpTypeMatrix %v4half 4
%f = OpFunction %void None %1
%4 = OpLabel
%34 = OpMatrixTimesMatrix %mat4v4half %18 %33
OpReturn
OpFunctionEnd