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nv50/ir/ra: swap copyCompound args if src is compound and dst isn't

This commit is contained in:
Christoph Bumiller 2013-02-28 23:41:41 +01:00
parent 95ad9bca2f
commit d995f44f0b
1 changed files with 9 additions and 0 deletions
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9
src/gallium/drivers/nv50/codegen/nv50_ir_ra.cpp
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@ -857,11 +857,20 @@ static inline uint8_t makeCompMask(int compSize, int base, int size)
}
}
// Used when coalescing moves. The non-compound value will become one, e.g.:
// mov b32 $r0 $r2 / merge b64 $r0d { $r0 $r1 }
// split b64 { $r0 $r1 } $r0d / mov b64 $r0d f64 $r2d
static inline void copyCompound(Value *dst, Value *src)
{
LValue *ldst = dst->asLValue();
LValue *lsrc = src->asLValue();
if (ldst->compound && !lsrc->compound) {
LValue *swap = lsrc;
lsrc = ldst;
ldst = swap;
}
ldst->compound = lsrc->compound;
ldst->compMask = lsrc->compMask;
}