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authorMagnus Lång <[email protected]>2016-09-24 09:42:01 +0200
committerMagnus Lång <[email protected]>2016-11-15 14:59:00 +0100
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hipe_x86: LeaToAdd peephole rule
Although LEA is useful for three-address form adds, sometimes it is used where a normal add would have sufficed (due to the addition being the last use of one of the operands; but RTL lowering does not know that as it does not have liveness information). As a workaround, we convert LEA back to ADD when the destination is the same as one of the operands.
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