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aco: set exec_potentially_empty for demotes

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Signed-off-by: Rhys Perry <pendingchaos02@gmail.com>
Fixes: 93c8ebfa78 ('aco: Initial commit of independent AMD compiler')
Reviewed-by: Daniel Schürmann <daniel@schuermann.dev>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/merge_requests/3081>
This commit is contained in:
Rhys Perry 2019-12-16 11:29:08 +00:00
parent 21eafe30df
commit 8f291dc146
1 changed files with 6 additions and 0 deletions
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6
src/amd/compiler/aco_instruction_selection.cpp
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@ -6195,6 +6195,9 @@ void visit_intrinsic(isel_context *ctx, nir_intrinsic_instr *instr)
}
case nir_intrinsic_demote:
bld.pseudo(aco_opcode::p_demote_to_helper);
if (ctx->cf_info.loop_nest_depth || ctx->cf_info.parent_if.is_divergent)
ctx->cf_info.exec_potentially_empty = true;
ctx->block->kind |= block_kind_uses_demote;
ctx->program->needs_exact = true;
break;
@ -6203,6 +6206,9 @@ void visit_intrinsic(isel_context *ctx, nir_intrinsic_instr *instr)
assert(src.regClass() == bld.lm);
Temp cond = bld.sop2(Builder::s_and, bld.def(bld.lm), bld.def(s1, scc), src, Operand(exec, bld.lm));
bld.pseudo(aco_opcode::p_demote_to_helper, cond);
if (ctx->cf_info.loop_nest_depth || ctx->cf_info.parent_if.is_divergent)
ctx->cf_info.exec_potentially_empty = true;
ctx->block->kind |= block_kind_uses_demote;
ctx->program->needs_exact = true;
break;