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* insert type casts when creating new unaryminus nodes during simplification, resolves #37508

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git-svn-id: trunk@46309 -
This commit is contained in:
florian 2020-08-07 21:43:00 +00:00
parent f97d12d6d7
commit d7ba09f543
3 changed files with 12 additions and 5 deletions
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1
.gitattributes vendored
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@ -18410,6 +18410,7 @@ tests/webtbs/tw37449.pp svneol=native#text/pascal
tests/webtbs/tw37468.pp svneol=native#text/pascal
tests/webtbs/tw37477.pp svneol=native#text/pascal
tests/webtbs/tw37493.pp svneol=native#text/pascal
tests/webtbs/tw37508.pp svneol=native#text/pascal
tests/webtbs/tw3751.pp svneol=native#text/plain
tests/webtbs/tw3758.pp svneol=native#text/plain
tests/webtbs/tw3764.pp svneol=native#text/plain

10
compiler/nadd.pas
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@ -737,7 +737,7 @@ implementation
begin
case nodetype of
muln:
result := cunaryminusnode.create(left.getcopy);
result := ctypeconvnode.create_internal(cunaryminusnode.create(left.getcopy),left.resultdef);
else
;
end;
@ -818,9 +818,9 @@ implementation
begin
case nodetype of
addn,orn,xorn:
result := right.getcopy;
result := right.getcopy;
subn:
result := cunaryminusnode.create(right.getcopy);
result := ctypeconvnode.create_internal(cunaryminusnode.create(right.getcopy),right.resultdef);
andn,muln:
begin
if (cs_opt_level4 in current_settings.optimizerswitches) or
@ -844,7 +844,7 @@ implementation
begin
case nodetype of
muln:
result := cunaryminusnode.create(right.getcopy);
result := ctypeconvnode.create_internal(cunaryminusnode.create(right.getcopy),right.resultdef);
else
;
end;
@ -976,7 +976,7 @@ implementation
end;
subn:
begin
result:=cunaryminusnode.create(right.getcopy);
result:=ctypeconvnode.create_internal(cunaryminusnode.create(right.getcopy),right.resultdef);
exit;
end;
else

6
tests/webtbs/tw37508.pp Normal file
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@ -0,0 +1,6 @@
{ %OPT=-O3 }
var a, b : integer;
begin
b := 0;
b := b - a - a { `b := b - a` won't trigger the error }
end.