?? pr19055.c
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/* { dg-do compile } *//* { dg-options "-fdump-tree-gimple" } */int f1(int a,int b){ return (a|b) ^ b;}int f2(int a,int b){ return (b|a) ^ b;}int f3(int a,int b){ return b^(a|b);}int f4(int a,int b){ return b^(b|a);}/* There should be no ^, 4 ~ and 4 &. *//* { dg-final { scan-tree-dump-times "\\^" 0 "gimple"} } *//* { dg-final { scan-tree-dump-times "~" 4 "gimple"} } *//* { dg-final { scan-tree-dump-times "&" 4 "gimple"} } *//* { dg-final { cleanup-tree-dump "gimple" } } */?? 快捷鍵說明
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