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[/] [scarts/] [trunk/] [toolchain/] [scarts-gcc/] [gcc-4.1.1/] [gcc/] [testsuite/] [gcc.dg/] [tree-ssa/] [reassoc-2.c] - Rev 12
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/* { dg-do compile } */ /* { dg-options "-O2 -fdump-tree-optimized -fdump-tree-reassoc-details" } */ extern int a0, a1, a2, a3, a4; int f () { int b0, b1, b2, b3, b4; /* this can be optimized to four additions... */ b4 = a4 + a3 + a2 + a1 + a0; b3 = a3 + a2 + a1 + a0; b2 = a2 + a1 + a0; b1 = a1 + a0; /* This is actually 0 */ return b4 - b3 + b2 - b1 - a4 - a2; } /* { dg-final { scan-tree-dump-times "Reassociating by rank" 3 "reassoc" } } */ /* { dg-final { scan-tree-dump-times "return 0" 1 "optimized" { xfail *-*-* } } } */ /* { dg-final { cleanup-tree-dump "optimized" } } */ /* { dg-final { cleanup-tree-dump "reassoc" } } */