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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>
35 lines
869 B
Plaintext
35 lines
869 B
Plaintext
#include <metal_stdlib>
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using namespace metal;
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struct tint_private_vars_struct {
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float4 gl_Position;
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};
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void main_1(thread tint_private_vars_struct* const tint_private_vars) {
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(*(tint_private_vars)).gl_Position = float4(0.0f);
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return;
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}
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struct main_out {
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float4 gl_Position;
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};
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struct tint_symbol_1 {
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float4 gl_Position [[position]];
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};
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main_out tint_symbol_inner(thread tint_private_vars_struct* const tint_private_vars) {
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main_1(tint_private_vars);
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main_out const tint_symbol_2 = {.gl_Position=(*(tint_private_vars)).gl_Position};
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return tint_symbol_2;
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}
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vertex tint_symbol_1 tint_symbol() {
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thread tint_private_vars_struct tint_private_vars = {};
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main_out const inner_result = tint_symbol_inner(&(tint_private_vars));
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tint_symbol_1 wrapper_result = {};
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wrapper_result.gl_Position = inner_result.gl_Position;
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return wrapper_result;
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}
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