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i965/fs: Fix the inline nir_op_pack_double optimization

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We can only do the optimization if the source *is* SSA.

Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Cc: "13.0 17.0" <mesa-stable@lists.freedesktop.org>
This commit is contained in:
Jason Ekstrand 2017-02-14 23:00:51 -08:00
parent e2abe80bee
commit a4393bd97f
1 changed files with 1 additions and 1 deletions
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2
src/mesa/drivers/dri/i965/brw_fs_nir.cpp
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@ -1219,7 +1219,7 @@ fs_visitor::nir_emit_alu(const fs_builder &bld, nir_alu_instr *instr)
* the unpack operation.
*/
for (int i = 0; i < 2; i++) {
if (instr->src[i].src.is_ssa)
if (!instr->src[i].src.is_ssa)
continue;
const nir_instr *parent_instr = instr->src[i].src.ssa->parent_instr;