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[/] [openrisc/] [trunk/] [gnu-old/] [gcc-4.2.2/] [gcc/] [testsuite/] [gcc.dg/] [tree-ssa/] [ssa-dse-5.c] - Rev 867
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/* { dg-do compile } */ /* { dg-options "-O2 -fdump-tree-optimized" } */ int x; int f1 (int i, int j, int k) { int *p = k ? &i : &j; i = 3; *p = 5; x = j; } /* The assignment "i = 3" is partialy dead. Our DSE pass doesn't handle detection of partially dead assignments. There's two outputs which would indicate that the optimization was performed. If we used block copying to detect and eliminate the partially dead store, then we should see an assignment "i = 5" somewhere in the dump file. Another approach would be to redirect the path from the true arm of the first conditional so that it reaches the statement *p = 5 rather than i = 3. */ /* { dg-final { scan-tree-dump-times "i = 5" 1 "optimized" { xfail *-*-* }} } */ /* { dg-final { scan-tree-dump-times "<L.*>:;\[\n\t \]*\\*p = 5" 1 "optimized" { xfail *-*-*}} } */ /* { dg-final { cleanup-tree-dump "optimized" } } */
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