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Using IR_SGE and IR_SGT with transposed args doesn't work since the __asm
calls don't do argument matching by name, but by position.
This fixes the broken lessThan() and lessThanEqual() functions.
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This eliminates the NOP instructions that had been used as placeholders for
branch targets.
Also, fix "return" statement bug.
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Also, start moving high vs. low-level instruction selection into slang_emit.c
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IF/ELSE/ENDIF and BEGIN_LOOP/END_LOOP/BREAK instructions seem to work.
Disabled by default though until better tested.
Implemented IR_NOT, but needs optimization.
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New high-level flow-control instructions, both at IR level and GPU instructions
for looping and subroutines.
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vec2 v; v.x = v.y = 1.0; // chained assignment
vec4 v; v.zx = vec2(a,b); // swizzled writemask
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instruction saturate-write option. Not finished yet.
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we can either jump on zero, or non-zero predicate.
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p and q works correctly.
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emit time, not codegen time.
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and expression temporarires. Much better register utilization now.
Lots of other fixes.
The OpenGL GLSL "orange book" brick shader demo works now.
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properly.
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instructions.
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