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i965: Update if_block/else_block in the dead control flow pass.

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I think this bug crept in only recently.

Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
This commit is contained in:
Matt Turner 2014-09-02 21:34:12 -07:00 • committed by Kenneth Graunke
parent 3e248e0418
commit 88d673bde6
1 changed files with 7 additions and 0 deletions
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7
src/mesa/drivers/dri/i965/brw_dead_control_flow.cpp
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@ -103,6 +103,13 @@ dead_control_flow_eliminate(backend_visitor *v)
if (earlier_block && earlier_block->can_combine_with(later_block)) {
earlier_block->combine_with(later_block);
foreach_block (block, v->cfg) {
if (block->if_block == later_block)
block->if_block = earlier_block;
if (block->else_block == later_block)
block->else_block = earlier_block;
}
/* If ENDIF was in its own block, then we've now deleted it and
* merged the two surrounding blocks, the latter of which the
* __next block pointer was pointing to.