Mercurial > hg > CbC > CbC_gcc
view gcc/testsuite/gcc.dg/tree-ssa/pr87126.c @ 131:84e7813d76e9
gcc-8.2
author | mir3636 |
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date | Thu, 25 Oct 2018 07:37:49 +0900 |
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/* { dg-do compile } */ /* { dg-options "-O2 -fdump-tree-fre1" } */ int a, *b; void f () { int d = 0, e = d; while (a++) ; if (e) goto L2; L1: d = e; b = &d; L2: if (d) goto L1; } /* The load of d could be eliminated if we'd value-number the irreducible region in RPO of the reducible result. Likewise a redundant store could be removed. */ /* { dg-final { scan-tree-dump-times "d = 0;" 1 "fre1" { xfail *-*-* } } } */ /* { dg-final { scan-tree-dump-not " = d;" "fre1" { xfail *-*-* } } } */