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aco: avoid unnecessary copies in emit_wqm()

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Reviewed-by: Rhys Perry <pendingchaos02@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/15347>
This commit is contained in:
Daniel Schürmann 2022-03-11 17:14:38 +01:00 • committed by Marge Bot
parent 4bccee123f
commit f12eb5c213
1 changed files with 5 additions and 8 deletions
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13
src/amd/compiler/aco_instruction_selection.cpp
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@ -169,19 +169,16 @@ emit_mbcnt(isel_context* ctx, Temp dst, Operand mask = Operand(), Operand base =
Temp Temp
emit_wqm(Builder& bld, Temp src, Temp dst = Temp(0, s1), bool program_needs_wqm = false) emit_wqm(Builder& bld, Temp src, Temp dst = Temp(0, s1), bool program_needs_wqm = false)
{ {
if (!dst.id())
dst = bld.tmp(src.regClass());
assert(src.size() == dst.size());
if (bld.program->stage != fragment_fs) { if (bld.program->stage != fragment_fs) {
if (!dst.id()) if (!dst.id())
return src; return src;
else
bld.copy(Definition(dst), src); return bld.copy(Definition(dst), src);
return dst; } else if (!dst.id()) {
dst = bld.tmp(src.regClass());
} }
assert(src.size() == dst.size());
bld.pseudo(aco_opcode::p_wqm, Definition(dst), src); bld.pseudo(aco_opcode::p_wqm, Definition(dst), src);
bld.program->needs_wqm |= program_needs_wqm; bld.program->needs_wqm |= program_needs_wqm;
return dst; return dst;