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i965/fs: Decide predicate/predicate_inverse outside of the for loop.

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Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
This commit is contained in:
Matt Turner 2014-02-11 13:12:07 -08:00
parent 96128d134b
commit 2a33510f16
1 changed files with 14 additions and 9 deletions
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23
src/mesa/drivers/dri/i965/brw_fs_sel_peephole.cpp
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@ -156,6 +156,18 @@ fs_visitor::opt_peephole_sel()
fs_inst *sel_inst[MAX_MOVS] = { NULL };
fs_inst *mov_imm_inst[MAX_MOVS] = { NULL };
enum brw_predicate predicate;
bool predicate_inverse;
if (brw->gen == 6 && if_inst->conditional_mod) {
/* For Sandybridge with IF with embedded comparison */
predicate = BRW_PREDICATE_NORMAL;
predicate_inverse = false;
} else {
/* Separate CMP and IF instructions */
predicate = if_inst->predicate;
predicate_inverse = if_inst->predicate_inverse;
}
/* Generate SEL instructions for pairs of MOVs to a common destination. */
for (int i = 0; i < movs; i++) {
if (!then_mov[i] || !else_mov[i])
@ -190,15 +202,8 @@ fs_visitor::opt_peephole_sel()
}
sel_inst[i] = SEL(then_mov[i]->dst, src0, else_mov[i]->src[0]);
if (brw->gen == 6 && if_inst->conditional_mod) {
/* For Sandybridge with IF with embedded comparison */
sel_inst[i]->predicate = BRW_PREDICATE_NORMAL;
} else {
/* Separate CMP and IF instructions */
sel_inst[i]->predicate = if_inst->predicate;
sel_inst[i]->predicate_inverse = if_inst->predicate_inverse;
}
sel_inst[i]->predicate = predicate;
sel_inst[i]->predicate_inverse = predicate_inverse;
}
}