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aco: Pop branch operands when targets are same in SSA elimination.

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The branch instruction is no longer conditional when the targets are the
same, so the operand is not necessary and can be removed.

Reviewed-by: Daniel Schürmann <daniel@schuermann.dev>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/21493>
This commit is contained in:
Timur Kristóf 2023-04-03 00:05:09 +02:00 • committed by Marge Bot
parent 739bd03c37
commit 0eb7c49c7f
1 changed files with 5 additions and 1 deletions
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6
src/amd/compiler/aco_ssa_elimination.cpp
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@ -270,8 +270,12 @@ try_remove_simple_block(ssa_elimination_ctx& ctx, Block* block)
assert(false);
}
if (branch.target[0] == branch.target[1])
if (branch.target[0] == branch.target[1]) {
while (branch.operands.size())
branch.operands.pop_back();
branch.opcode = aco_opcode::p_branch;
}
for (unsigned i = 0; i < pred.linear_succs.size(); i++)
if (pred.linear_succs[i] == block->index)