paweld/fpc
1
0
Fork 0
mirror of https://gitlab.com/freepascal.org/fpc/source.git synced 2025-12-08 01:27:42 +01:00
Code Issues Packages Projects Releases Wiki Activity

+ also recognize sbb reg,reg as writing a new value in the register in TX86AsmOptimizer.RegLoadedWithNewValue

Browse Source 
git-svn-id: trunk@36119 -
This commit is contained in:
nickysn 2017-05-05 14:24:13 +00:00
parent 4305ffcfa3
commit b882ba5fd2
1 changed files with 1 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
compiler/x86/aoptx86.pas
View File

@ -520,7 +520,7 @@ unit aoptx86;
(p.opcode = A_FNSTSW)) and
(p.oper[0]^.typ=top_reg) and
Reg1WriteOverwritesReg2Entirely(p.oper[0]^.reg,reg)) or
(((p.opcode = A_XOR) or (p.opcode = A_SUB)) and
(((p.opcode = A_XOR) or (p.opcode = A_SUB) or (p.opcode = A_SBB)) and
(p.oper[0]^.typ=top_reg) and (p.oper[1]^.typ=top_reg) and
(p.oper[0]^.reg=p.oper[1]^.reg) and
Reg1WriteOverwritesReg2Entirely(p.oper[1]^.reg,reg));