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nir/opt_constant_folding: fix folding of 8 and 16 bit ints 

Signed-off-by: Karol Herbst <kherbst@redhat.com>
Reviewed-by: Jose Maria Casanova Crespo <jmcasanova@igalia.com>
Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
This commit is contained in:
Karol Herbst 2018-04-22 03:29:07 +02:00
parent 14943add44
commit 227b1af866
1 changed files with 12 additions and 2 deletions
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14
src/compiler/nir/nir_opt_constant_folding.c
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@ -76,10 +76,20 @@ constant_fold_alu_instr(nir_alu_instr *instr, void *mem_ctx)
for (unsigned j = 0; j < nir_ssa_alu_instr_src_components(instr, i);
j++) {
if (load_const->def.bit_size == 64)
switch(load_const->def.bit_size) {
case 64:
src[i].u64[j] = load_const->value.u64[instr->src[i].swizzle[j]];
else
break;
case 32:
src[i].u32[j] = load_const->value.u32[instr->src[i].swizzle[j]];
break;
case 16:
src[i].u16[j] = load_const->value.u16[instr->src[i].swizzle[j]];
break;
case 8:
src[i].u8[j] = load_const->value.u8[instr->src[i].swizzle[j]];
break;
}
}
/* We shouldn't have any source modifiers in the optimization loop. */