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.
36 lines
521 B
GLSL
36 lines
521 B
GLSL
#include <metal_stdlib>
|
|
#include <simd/simd.h>
|
|
|
|
using namespace metal;
|
|
|
|
constant float _21 = {};
|
|
|
|
struct main0_out
|
|
{
|
|
float4 gl_Position [[position]];
|
|
};
|
|
|
|
vertex main0_out main0()
|
|
{
|
|
main0_out out = {};
|
|
float _23[2];
|
|
for (int _25 = 0; _25 < 2; )
|
|
{
|
|
_23[_25] = 0.0;
|
|
_25++;
|
|
continue;
|
|
}
|
|
float _37;
|
|
if (as_type<uint>(3.0) != 0u)
|
|
{
|
|
_37 = _23[0];
|
|
}
|
|
else
|
|
{
|
|
_37 = _21;
|
|
}
|
|
out.gl_Position = float4(0.0, 0.0, 0.0, _37);
|
|
return out;
|
|
}
|
|
|