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nir/alu_to_scalar: Respect the exact ALU operation qualifier

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Just setting builder->exact isn't sufficient because that only applies to
instructions that are built with the builder but instructions created
manually and only inserted using the builder are left alone.

Signed-off-by: Jason Ekstrand <jason@jlekstrand.net>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Cc: "12.0" <mesa-stable@lists.freedesktop.org>
This commit is contained in:
Jason Ekstrand 2016-06-13 14:41:05 -07:00
parent 202751fbb7
commit bec07b7292
1 changed files with 2 additions and 0 deletions
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2
src/compiler/nir/nir_lower_alu_to_scalar.c
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@ -56,6 +56,7 @@ lower_reduction(nir_alu_instr *instr, nir_op chan_op, nir_op merge_op,
nir_alu_src_copy(&chan->src[1], &instr->src[1], chan);
chan->src[1].swizzle[0] = chan->src[1].swizzle[i];
}
chan->exact = instr->exact;
nir_builder_instr_insert(builder, &chan->instr);
@ -229,6 +230,7 @@ lower_alu_instr_scalar(nir_alu_instr *instr, nir_builder *b)
nir_alu_ssa_dest_init(lower, 1, instr->dest.dest.ssa.bit_size);
lower->dest.saturate = instr->dest.saturate;
comps[chan] = &lower->dest.dest.ssa;
lower->exact = instr->exact;
nir_builder_instr_insert(b, &lower->instr);
}