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0e22bdbae7
In order to avoid declaring too many function parameters, we previously modified this transform to redeclare private variables that are only used inside a single function as function-scope variables. This was broken as it meant that their values did not persist across multiple calls to the same function. Instead, wrap all private variables in a structure and pass it around as a pointer. Fixed: tint:1875 Change-Id: I83f5eb1071d57b9c6af56d6cf21b3a32c6e94260 Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/124800 Kokoro: Kokoro <noreply+kokoro@google.com> Reviewed-by: Ben Clayton <bclayton@google.com> Commit-Queue: James Price <jrprice@google.com>
64 lines
1.8 KiB
Plaintext
64 lines
1.8 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 tint_private_vars_struct {
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uint i;
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};
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struct S {
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int a;
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float4 b;
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float2x2 c;
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};
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int idx1(thread tint_private_vars_struct* const tint_private_vars) {
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(*(tint_private_vars)).i = ((*(tint_private_vars)).i + 1u);
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return 1;
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}
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int idx2(thread tint_private_vars_struct* const tint_private_vars) {
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(*(tint_private_vars)).i = ((*(tint_private_vars)).i + 2u);
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return 1;
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}
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int idx3(thread tint_private_vars_struct* const tint_private_vars) {
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(*(tint_private_vars)).i = ((*(tint_private_vars)).i + 3u);
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return 1;
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}
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void foo(thread tint_private_vars_struct* const tint_private_vars) {
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tint_array<float, 4> a = tint_array<float, 4>{};
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{
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int const tint_symbol_2 = idx1(tint_private_vars);
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int const tint_symbol_save = tint_symbol_2;
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a[tint_symbol_save] = (a[tint_symbol_save] * 2.0f);
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while (true) {
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int const tint_symbol_3 = idx2(tint_private_vars);
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if (!((a[tint_symbol_3] < 10.0f))) {
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break;
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}
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{
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}
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{
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int const tint_symbol_4 = idx3(tint_private_vars);
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int const tint_symbol_1_save = tint_symbol_4;
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a[tint_symbol_1_save] = (a[tint_symbol_1_save] + 1.0f);
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}
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}
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}
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}
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