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transform: Fix PromoteInitializersToConstVar handling of for-loops

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PromoteInitializersToConstVar was erroring on for loops that contained array or structure constructor expressions.

Added lots more tests.

Fixed: tint:1364
Change-Id: I033eaad94756ea496fc8bc5f03f39c6dba4e3a88
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/75580
Reviewed-by: James Price <jrprice@google.com>
Kokoro: Kokoro <noreply+kokoro@google.com>
Commit-Queue: Ben Clayton <bclayton@google.com>
This commit is contained in:
Ben Clayton
2022-01-06 21:32:41 +00:00
committed by Tint LUCI CQ
parent 4d245d9a36
commit e4e7485854
63 changed files with 895 additions and 96 deletions
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37
test/statements/for/initializer/basic.wgsl.expected.spvasm Normal file
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; SPIR-V
; Version: 1.3
; Generator: Google Tint Compiler; 0
; Bound: 16
; Schema: 0
OpCapability Shader
OpMemoryModel Logical GLSL450
OpEntryPoint GLCompute %unused_entry_point "unused_entry_point"
OpExecutionMode %unused_entry_point LocalSize 1 1 1
OpName %unused_entry_point "unused_entry_point"
OpName %f "f"
OpName %i "i"
%void = OpTypeVoid
%1 = OpTypeFunction %void
%int = OpTypeInt 32 1
%int_0 = OpConstant %int 0
%_ptr_Function_int = OpTypePointer Function %int
%11 = OpConstantNull %int
%unused_entry_point = OpFunction %void None %1
%4 = OpLabel
OpReturn
OpFunctionEnd
%f = OpFunction %void None %1
%6 = OpLabel
%i = OpVariable %_ptr_Function_int Function %11
OpStore %i %int_0
OpBranch %12
%12 = OpLabel
OpLoopMerge %13 %14 None
OpBranch %15
%15 = OpLabel
OpBranch %14
%14 = OpLabel
OpBranch %12
%13 = OpLabel
OpReturn
OpFunctionEnd