Mercurial > hg > CbC > CbC_gcc
view gcc/testsuite/gcc.dg/tree-ssa/ssa-dse-36.c @ 152:2b5abeee2509
update gcc11
author | anatofuz |
---|---|
date | Mon, 25 May 2020 07:50:57 +0900 |
parents | 1830386684a0 |
children |
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/* { dg-options "-O2 -fdump-tree-dse-details -fno-tree-fre" } */ #include <string.h> #include <stdlib.h> struct X { char mem0[10]; char mem1[10]; }; void blah (struct X); void foo1() { struct X x = { }; memset (x.mem1, 0, sizeof x.mem1); blah (x); } void foo2() { struct X x = { }; x.mem1[5] = 0; blah (x); } void bar1 () { struct X x; memset (&x, 0, sizeof x); memset (&x.mem1, 0, sizeof x.mem1); blah (x); } void bar2 () { struct X x; memset (&x, 0, sizeof x); x.mem1[5] = 0; blah (x); } void baz1 () { struct X *x = calloc (sizeof (struct X), 1); memset (&x->mem1, 0, sizeof x->mem1); blah (*x); } void baz2 () { struct X *x = calloc (sizeof (struct X), 1); x->mem1[5] = 0; blah (*x); } /* { dg-final { scan-tree-dump-times "Deleted redundant call" 3 "dse1" } } */ /* { dg-final { scan-tree-dump-times "Deleted redundant store" 3 "dse1" } } */