Mercurial > hg > CbC > CbC_gcc
view gcc/testsuite/g++.dg/tree-ssa/copyprop-1.C @ 145:1830386684a0
gcc-9.2.0
author | anatofuz |
---|---|
date | Thu, 13 Feb 2020 11:34:05 +0900 |
parents | 04ced10e8804 |
children |
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/* { dg-do compile } */ /* { dg-options "-O -fdump-tree-dce3" } */ /* Verify that we can eliminate the useless conversions to/from const qualified pointer types this_2 = o_1; D.20003_4 = this_2->data_m; this_5 = D.20003_4; D.20005_6 = this_5->value; copyprop should propagate o_1 and D.20003_4 to the loads of data_m and value. dce removes all traces of this. */ struct Data { int get() const { return value; } int value; }; struct Object { int operator[](int i) const { return data_m->get(); } Data *data_m; }; int foo(Object&o) { return o[0]; } /* Remaining should be two loads. */ /* { dg-final { scan-tree-dump-times " = \[^\n\]*;" 2 "dce3" } } */