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Add support for increment/decrement statements

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Refactor the ExpandCompoundAssignment transform to handle these
statements, which delivers support for all of the non-WGSL backends.

Fixed: tint:1488
Change-Id: I96cdc31851c61f6d92d296447d0b0637907d5fe5
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/86004
Reviewed-by: Ben Clayton <bclayton@google.com>
This commit is contained in:
James Price
2022-04-07 13:42:45 +00:00
parent b02fe31e46
commit d68d3a9809
76 changed files with 2052 additions and 838 deletions
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71
test/tint/statements/increment/for_loop_initializer.wgsl.expected.spvasm
View File

@@ -1,11 +1,60 @@
SKIP: FAILED
@group(0) @binding(0) var<storage, read_write> i : u32;
fn main() {
for(i++; (i < 10u); ) {
}
}
Failed to generate: Unknown statement: tint::ast::IncrementDecrementStatement
; SPIR-V
; Version: 1.3
; Generator: Google Tint Compiler; 0
; Bound: 30
; Schema: 0
OpCapability Shader
OpMemoryModel Logical GLSL450
OpEntryPoint GLCompute %unused_entry_point "unused_entry_point"
OpExecutionMode %unused_entry_point LocalSize 1 1 1
OpName %i_block "i_block"
OpMemberName %i_block 0 "inner"
OpName %i "i"
OpName %unused_entry_point "unused_entry_point"
OpName %main "main"
OpDecorate %i_block Block
OpMemberDecorate %i_block 0 Offset 0
OpDecorate %i DescriptorSet 0
OpDecorate %i Binding 0
%uint = OpTypeInt 32 0
%i_block = OpTypeStruct %uint
%_ptr_StorageBuffer_i_block = OpTypePointer StorageBuffer %i_block
%i = OpVariable %_ptr_StorageBuffer_i_block StorageBuffer
%void = OpTypeVoid
%5 = OpTypeFunction %void
%uint_0 = OpConstant %uint 0
%_ptr_StorageBuffer_uint = OpTypePointer StorageBuffer %uint
%uint_1 = OpConstant %uint 1
%uint_10 = OpConstant %uint 10
%bool = OpTypeBool
%unused_entry_point = OpFunction %void None %5
%8 = OpLabel
OpReturn
OpFunctionEnd
%main = OpFunction %void None %5
%10 = OpLabel
%13 = OpAccessChain %_ptr_StorageBuffer_uint %i %uint_0
%14 = OpAccessChain %_ptr_StorageBuffer_uint %i %uint_0
%15 = OpLoad %uint %14
%17 = OpIAdd %uint %15 %uint_1
OpStore %13 %17
OpBranch %18
%18 = OpLabel
OpLoopMerge %19 %20 None
OpBranch %21
%21 = OpLabel
%23 = OpAccessChain %_ptr_StorageBuffer_uint %i %uint_0
%24 = OpLoad %uint %23
%26 = OpULessThan %bool %24 %uint_10
%22 = OpLogicalNot %bool %26
OpSelectionMerge %28 None
OpBranchConditional %22 %29 %28
%29 = OpLabel
OpBranch %19
%28 = OpLabel
OpBranch %20
%20 = OpLabel
OpBranch %18
%19 = OpLabel
OpReturn
OpFunctionEnd