461f1506e7
This is not necessary, as we must emit an invalidating store before we
potentially consume an invalid expression. In fact, we're a bit
conservative here in this case for example:
int tmp = variable;
if (...)
{
variable = 10;
}
else
{
// Consuming tmp here is fine, but it was
// invalidated while emitting other branch.
// Technically, we need to study if there is an invalidating store
// in the CFG between the loading block and this block, and the other
// branch will not be a part of that analysis.
int tmp2 = tmp * tmp;
}
Fixing this case means complex CFG traversal *everywhere*, and it feels like overkill.
Fixing this exposed a bug with access chains, so fix a bug where expression dependencies were not
inherited properly in access chains. Access chains are now considered forwarded if there
is at least one dependency which is also forwarded.
74 lines
1.4 KiB
JavaScript
74 lines
1.4 KiB
JavaScript
#include <metal_stdlib>
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#include <simd/simd.h>
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using namespace metal;
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struct main0_out
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{
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int FragColor [[color(0)]];
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};
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fragment main0_out main0()
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{
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main0_out out = {};
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int _145;
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for (;;)
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{
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out.FragColor = 16;
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_145 = 0;
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for (; _145 < 25; )
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{
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out.FragColor += 10;
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_145++;
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continue;
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}
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for (int _146 = 1; _146 < 30; )
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{
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out.FragColor += 11;
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_146++;
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continue;
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}
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int _147;
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_147 = 0;
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for (; _147 < 20; )
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{
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out.FragColor += 12;
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_147++;
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continue;
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}
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int _62 = _147 + 3;
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out.FragColor += _62;
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if (_62 == 40)
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{
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for (int _151 = 0; _151 < 40; )
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{
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out.FragColor += 13;
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_151++;
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continue;
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}
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break;
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}
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out.FragColor += _62;
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int2 _148;
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_148 = int2(0);
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for (; _148.x < 10; )
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{
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out.FragColor += _148.y;
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int2 _144 = _148;
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_144.x = _148.x + 4;
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_148 = _144;
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continue;
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}
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for (int _150 = _62; _150 < 40; )
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{
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out.FragColor += _150;
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_150++;
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continue;
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}
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out.FragColor += _62;
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break;
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}
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return out;
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}
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