bcfd6da5db
Currently the target test will fail with:
```
error: line 12: Initializer type must match the data type
%var2 = OpVariable %_ptr_Uniform_float Uniform %var1
```
When passed:
```mlir
spirv.module Logical GLSL450 requires #spirv.vce<v1.0, [Shader], []> {
spirv.GlobalVariable @var1 : !spirv.ptr<f32, Uniform>
spirv.GlobalVariable @var2 initializer(@var1) bind(1, 0) : !spirv.ptr<f32, Uniform>
}
```
The problem is that we try to initialize `f32` pointer with `f32`
pointer, but the validator fails because it expects `var1` to be `f32`,
not a pointer to `f32`. `spirv.GlobalVariable` only allows pointer type,
so in the current design we cannot initialize one `spirv.GlobalVariable`
with another.
So, for now we disallow initialization of one global variable with
another. In the future we may want to re-work global variables if we
want to support that.
69 lines
3.0 KiB
MLIR
69 lines
3.0 KiB
MLIR
// RUN: mlir-translate -no-implicit-module -test-spirv-roundtrip -split-input-file %s | FileCheck %s
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// RUN: %if spirv-tools %{ rm -rf %t %}
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// RUN: %if spirv-tools %{ mkdir %t %}
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// RUN: %if spirv-tools %{ mlir-translate --no-implicit-module --serialize-spirv --split-input-file --spirv-save-validation-files-with-prefix=%t/module %s %}
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// RUN: %if spirv-tools %{ spirv-val %t %}
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// CHECK: spirv.GlobalVariable @var0 bind(1, 0) : !spirv.ptr<f32, Input>
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// CHECK-NEXT: spirv.GlobalVariable @var1 bind(0, 1) : !spirv.ptr<f32, Output>
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// CHECK-NEXT: spirv.GlobalVariable @var2 built_in("GlobalInvocationId") : !spirv.ptr<vector<3xi32>, Input>
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// CHECK-NEXT: spirv.GlobalVariable @var3 built_in("GlobalInvocationId") : !spirv.ptr<vector<3xi32>, Input>
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spirv.module Logical GLSL450 requires #spirv.vce<v1.0, [Shader, Linkage], []> {
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spirv.GlobalVariable @var0 bind(1, 0) : !spirv.ptr<f32, Input>
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spirv.GlobalVariable @var1 bind(0, 1) : !spirv.ptr<f32, Output>
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spirv.GlobalVariable @var2 {built_in = "GlobalInvocationId"} : !spirv.ptr<vector<3xi32>, Input>
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spirv.GlobalVariable @var3 built_in("GlobalInvocationId") : !spirv.ptr<vector<3xi32>, Input>
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}
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// -----
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spirv.module Logical GLSL450 requires #spirv.vce<v1.0, [Shader, Linkage, Int8], []> {
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// CHECK: spirv.SpecConstant @sc = 1 : i8
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// CHECK-NEXT: spirv.GlobalVariable @var initializer(@sc) : !spirv.ptr<i8, Uniform>
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spirv.SpecConstant @sc = 1 : i8
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spirv.GlobalVariable @var initializer(@sc) : !spirv.ptr<i8, Uniform>
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}
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// -----
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spirv.module Logical GLSL450 requires #spirv.vce<v1.0, [Shader, Linkage, Int8], []> {
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// CHECK: spirv.SpecConstantComposite @scc (@sc0, @sc1, @sc2) : !spirv.array<3 x i8>
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// CHECK-NEXT: spirv.GlobalVariable @var initializer(@scc) : !spirv.ptr<!spirv.array<3 x i8>, Uniform>
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spirv.SpecConstant @sc0 = 1 : i8
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spirv.SpecConstant @sc1 = 2 : i8
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spirv.SpecConstant @sc2 = 3 : i8
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spirv.SpecConstantComposite @scc (@sc0, @sc1, @sc2) : !spirv.array<3 x i8>
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spirv.GlobalVariable @var initializer(@scc) : !spirv.ptr<!spirv.array<3 x i8>, Uniform>
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}
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// -----
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spirv.module Logical GLSL450 requires #spirv.vce<v1.0, [Shader, Linkage], []> {
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spirv.GlobalVariable @globalInvocationID built_in("GlobalInvocationId") : !spirv.ptr<vector<3xi32>, Input>
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spirv.func @foo() "None" {
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// CHECK: %[[ADDR:.*]] = spirv.mlir.addressof @globalInvocationID : !spirv.ptr<vector<3xi32>, Input>
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%0 = spirv.mlir.addressof @globalInvocationID : !spirv.ptr<vector<3xi32>, Input>
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%1 = spirv.Constant 0: i32
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// CHECK: spirv.AccessChain %[[ADDR]]
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%2 = spirv.AccessChain %0[%1] : !spirv.ptr<vector<3xi32>, Input>, i32 -> !spirv.ptr<i32, Input>
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spirv.Return
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}
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}
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// -----
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spirv.module Logical GLSL450 requires #spirv.vce<v1.0, [Shader, Linkage], []> {
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// CHECK: linkage_attributes = #spirv.linkage_attributes<linkage_name = "outSideGlobalVar1", linkage_type = <Import>>
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spirv.GlobalVariable @var1 {
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linkage_attributes=#spirv.linkage_attributes<
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linkage_name="outSideGlobalVar1",
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linkage_type=<Import>
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>
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} : !spirv.ptr<f32, Private>
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}
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