?? alias-1.c
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/* { dg-options "-O2 -fargument-noalias-global -fdump-tree-optimized" } */int f;void link_error ();void g(int *i){ *i = 0; f = 1; if (*i != 0) link_error ();}/* We should have removed the link_error on the tree level as we told GCC that *i cannot point to f via the option -fargument-noalias-global. *//* { dg-final { scan-tree-dump-times "link_error" 0 "optimized"} } *//* { dg-final { cleanup-tree-dump "optimized" } } */?? 快捷鍵說明
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