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f47887d207
And remove the WrapArraysInStructs transform. Wrapping arrays in structures becomes troublesome for `const` arrays, as currently WGSL does not allow `const` structures. MSL 2.0+ has a builtin array<> helper, but we're targetting MSL 1.2, so we have to emit our own. Fortunately, it can be done with a few lines of templated code. This produces significantly cleaner output. Change-Id: Ifc92ef21e09befa252a07c856c4b5afdc51cc2e4 Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/94540 Kokoro: Kokoro <noreply+kokoro@google.com> Commit-Queue: Ben Clayton <bclayton@chromium.org> Reviewed-by: David Neto <dneto@google.com>
76 lines
1.7 KiB
Plaintext
76 lines
1.7 KiB
Plaintext
#include <metal_stdlib>
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using namespace metal;
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template<typename T, size_t N>
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struct tint_array {
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const constant T& operator[](size_t i) const constant { return elements[i]; }
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device T& operator[](size_t i) device { return elements[i]; }
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const device T& operator[](size_t i) const device { return elements[i]; }
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thread T& operator[](size_t i) thread { return elements[i]; }
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const thread T& operator[](size_t i) const thread { return elements[i]; }
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threadgroup T& operator[](size_t i) threadgroup { return elements[i]; }
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const threadgroup T& operator[](size_t i) const threadgroup { return elements[i]; }
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T elements[N];
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};
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struct MyStruct {
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float f1;
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};
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int ret_i32() {
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return 1;
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}
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uint ret_u32() {
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return 1u;
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}
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float ret_f32() {
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return 1.0f;
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}
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MyStruct ret_MyStruct() {
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MyStruct const tint_symbol_2 = {};
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return tint_symbol_2;
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}
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tint_array<float, 10> ret_MyArray() {
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tint_array<float, 10> const tint_symbol_3 = tint_array<float, 10>{};
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return tint_symbol_3;
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}
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void var_decls() {
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int v1 = 1;
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uint v2 = 1u;
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float v3 = 1.0f;
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int3 v4 = int3(1);
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uint3 v5 = uint3(1u);
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float3 v6 = float3(1.0f);
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float3x3 v7 = float3x3(v6, v6, v6);
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MyStruct v8 = {.f1=1.0f};
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tint_array<float, 10> v9 = tint_array<float, 10>{};
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int v10 = ret_i32();
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uint v11 = ret_u32();
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float v12 = ret_f32();
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MyStruct v13 = ret_MyStruct();
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MyStruct v14 = ret_MyStruct();
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tint_array<float, 10> v15 = ret_MyArray();
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}
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struct tint_symbol_1 {
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float4 value [[color(0)]];
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};
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float4 tint_symbol_inner() {
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return float4(0.0f);
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}
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fragment tint_symbol_1 tint_symbol() {
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float4 const inner_result = tint_symbol_inner();
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tint_symbol_1 wrapper_result = {};
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wrapper_result.value = inner_result;
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return wrapper_result;
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}
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