Mercurial > hg > CbC > CbC_gcc
view gcc/testsuite/gcc.dg/tree-ssa/negate.c @ 131:84e7813d76e9
gcc-8.2
author | mir3636 |
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date | Thu, 25 Oct 2018 07:37:49 +0900 |
parents | 04ced10e8804 |
children |
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/* { dg-do compile } */ /* { dg-options "-O2 -fdump-tree-reassoc1" } */ int f (int a, int b) { int x = -a; int y = b - x; return y; } /* We tested for reassociation to -(a + b) on the following which isn't a transform that makes things cheaper. With reassoc no longer applying to types with undefined overflow we lost this transform. int g (int a, int b) { int x = -a; int y = x - b; return y; } */ /* There should be an addition now. */ /* { dg-final { scan-tree-dump-times "\\+" 1 "reassoc1"} } */