Mercurial > hg > CbC > CbC_gcc
view gcc/testsuite/gcc.dg/tree-ssa/popcount.c @ 131:84e7813d76e9
gcc-8.2
author | mir3636 |
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date | Thu, 25 Oct 2018 07:37:49 +0900 |
parents | |
children | 1830386684a0 |
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/* { dg-do compile } */ /* { dg-options "-O3 -fdump-tree-optimized -fno-tree-ch" } */ extern int foo (int); int PopCount (long b) { int c = 0; b++; while (b) { b &= b - 1; c++; } return c; } int PopCount2 (long b) { int c = 0; while (b) { b &= b - 1; c++; } foo (c); return foo (c); } void PopCount3 (long b1) { for (long i = 0; i < b1; ++i) { long b = i; int c = 0; while (b) { b &= b - 1; c++; } foo (c); } } /* { dg-final { scan-tree-dump-times "__builtin_popcount" 3 "optimized" } } */