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* x86: Changed BMI2 check to BMI1 for ordinal ANDN optimisation

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This commit is contained in:
J. Gareth "Curious Kit" Moreton 2022-10-22 18:41:09 +01:00 committed by FPK
parent afc9acda37
commit a1ea1dd98e
1 changed files with 2 additions and 2 deletions
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4
compiler/x86/nx86add.pas
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@ -1944,9 +1944,9 @@ unit nx86add;
opsize:=def_cgsize(left.resultdef);
{$ifndef i8086}
{ Bit-manipulation optimisations }
{ BMI1 optimisations }
if (cs_opt_level2 in current_settings.optimizerswitches) and
(CPUX86_HAS_BMI2 in cpu_capabilities[current_settings.cputype]) then
(CPUX86_HAS_BMI1 in cpu_capabilities[current_settings.cputype]) then
begin
{ Can we turn "x and (not y)" into an ANDN instruction instead? }
if (nodetype = andn) and