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* avoid the AND instruction in the i386 shr64/shl64 code, by using TEST+JZ,

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instead of CMP+JL

git-svn-id: trunk@35830 -
This commit is contained in:
nickysn 2017-04-18 11:36:48 +00:00
parent f29bbe25a6
commit 7e8c89435f
1 changed files with 2 additions and 3 deletions
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5
compiler/i386/n386mat.pas
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@ -179,9 +179,8 @@ implementation
{ so we've to do some tricks here }
current_asmdata.getjumplabel(l2);
current_asmdata.getjumplabel(l3);
emit_const_reg(A_AND,S_L,63,NR_ECX);
emit_const_reg(A_CMP,S_L,32,NR_ECX);
cg.a_jmp_flags(current_asmdata.CurrAsmList,F_L,l2);
emit_const_reg(A_TEST,S_L,32,NR_ECX);
cg.a_jmp_flags(current_asmdata.CurrAsmList,F_E,l2);
emit_const_reg(A_SUB,S_L,32,NR_ECX);
if nodetype=shln then
begin