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8214027: Reinstate testB_mem_imm pattern in x86_64.ad

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Reviewed-by: rkennke
This commit is contained in:
Bernard Blaser 2018-11-18 19:45:33 +01:00
parent 26cf1a832b
commit dc4be9066f
1 changed files with 11 additions and 1 deletions
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12
src/hotspot/cpu/x86/x86_64.ad
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@ -11930,7 +11930,17 @@ instruct testUB_mem_imm(rFlagsReg cr, memory mem, immU8 imm, immI0 zero)
match(Set cr (CmpI (AndI (LoadUB mem) imm) zero));
ins_cost(125);
format %{ "testb $mem, $imm" %}
format %{ "testb $mem, $imm\t# ubyte" %}
ins_encode %{ __ testb($mem$$Address, $imm$$constant); %}
ins_pipe(ialu_cr_reg_mem);
%}
instruct testB_mem_imm(rFlagsReg cr, memory mem, immI8 imm, immI0 zero)
%{
match(Set cr (CmpI (AndI (LoadB mem) imm) zero));
ins_cost(125);
format %{ "testb $mem, $imm\t# byte" %}
ins_encode %{ __ testb($mem$$Address, $imm$$constant); %}
ins_pipe(ialu_cr_reg_mem);
%}