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* never allocate odd numbered single-sized registers

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git-svn-id: trunk@33186 -
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florian 2016-03-06 13:33:24 +00:00
parent 234990b73c
commit 6207a53f5d
1 changed files with 5 additions and 0 deletions
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5
compiler/arm/rgcpu.pas
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@ -346,6 +346,11 @@ unit rgcpu;
supreg:=getsupreg(reg); supreg:=getsupreg(reg);
for i:=RS_D16 to RS_D31 do for i:=RS_D16 to RS_D31 do
add_edge(supreg,i); add_edge(supreg,i);
{ further, we cannot use the odd single registers as the register
allocator cannot handle overlapping registers so far }
for i in [RS_S1,RS_S3,RS_S5,RS_S7,RS_S9,RS_S11,RS_S13,RS_S15,RS_S17,RS_S19,
RS_S21,RS_S23,RS_S25,RS_S27,RS_S29,RS_S31] do
add_edge(supreg,i);
end; end;
end; end;
end; end;