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PPCAnalyst: Don't swap instruction which might cause interrupts.

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fcmpo and fcmpu can be matched by the REORDER_CMP pass, as they set CR0
and they can cause interrupts if the fpu is disabled.
So we add an extra check to make sure op a is an integer op too.
This commit is contained in:
Scott Mansell 2015-07-07 22:11:21 +12:00
parent 48ac522b5c
commit a31ebb9bcd
1 changed files with 4 additions and 0 deletions
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Source/Core/Core/PowerPC/PPCAnalyst.cpp
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@ -250,6 +250,10 @@ static bool CanSwapAdjacentOps(const CodeOp &a, const CodeOp &b)
if (b_info->type != OPTYPE_INTEGER) if (b_info->type != OPTYPE_INTEGER)
return false; return false;
// And it's possible a might raise an interrupt too (fcmpo/fcmpu)
if (a_info->type != OPTYPE_INTEGER)
return false;
// Check that we have no register collisions. // Check that we have no register collisions.
// That is, check that none of b's outputs matches any of a's inputs, // That is, check that none of b's outputs matches any of a's inputs,
// and that none of a's outputs matches any of b's inputs. // and that none of a's outputs matches any of b's inputs.