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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>
47 lines
1.5 KiB
Plaintext
47 lines
1.5 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 strided_arr {
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/* 0x0000 */ float el;
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/* 0x0004 */ tint_array<int8_t, 4> tint_pad;
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};
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struct strided_arr_1 {
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/* 0x0000 */ tint_array<tint_array<strided_arr, 2>, 3> el;
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/* 0x0030 */ tint_array<int8_t, 80> tint_pad_1;
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};
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struct S {
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/* 0x0000 */ tint_array<strided_arr_1, 4> a;
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};
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void f_1(device S* const tint_symbol_1) {
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tint_array<strided_arr_1, 4> const x_19 = (*(tint_symbol_1)).a;
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tint_array<tint_array<strided_arr, 2>, 3> const x_24 = (*(tint_symbol_1)).a[3].el;
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tint_array<strided_arr, 2> const x_28 = (*(tint_symbol_1)).a[3].el[2];
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float const x_32 = (*(tint_symbol_1)).a[3].el[2][1].el;
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tint_array<strided_arr_1, 4> const tint_symbol = tint_array<strided_arr_1, 4>{};
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(*(tint_symbol_1)).a = tint_symbol;
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(*(tint_symbol_1)).a[3].el[2][1].el = 5.0f;
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return;
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}
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kernel void f(device S* tint_symbol_2 [[buffer(0)]]) {
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f_1(tint_symbol_2);
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return;
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}
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