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diff gcc/testsuite/gcc.dg/tree-ssa/ssa-fre-65.c @ 131:84e7813d76e9

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gcc-8.2
author mir3636
date Thu, 25 Oct 2018 07:37:49 +0900
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--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/gcc/testsuite/gcc.dg/tree-ssa/ssa-fre-65.c	Thu Oct 25 07:37:49 2018 +0900
@@ -0,0 +1,20 @@
+/* { dg-do compile } */
+/* { dg-options "-O -fdump-tree-fre1-details -fdump-tree-dse1-details" } */
+
+typedef unsigned char v16qi __attribute__((vector_size(16)));
+typedef unsigned short v8hi __attribute__((vector_size(16)));
+typedef unsigned int v4si __attribute__((vector_size(16)));
+void foo(char *dest)
+{
+  unsigned char x[256] __attribute__((aligned(16)));
+  __builtin_memset (x, 23, 256);
+  v16qi resqi = *(v16qi *)&x[16];
+  v8hi reshi = *(v8hi *)&x[16];
+  v4si ressi = *(v4si *)&x[16];
+  *(v16qi *)dest = resqi;
+  *(v8hi *)(dest + 16) = reshi;
+  *(v4si *)(dest + 32) = ressi;
+}
+
+/* { dg-final { scan-tree-dump-times "Replaced MEM" 3 "fre1" } } */
+/* { dg-final { scan-tree-dump-times "Deleted dead call" 1 "dse1" } } */