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authorupstream source tree <ports@midipix.org>2015-03-15 20:14:05 -0400
committerupstream source tree <ports@midipix.org>2015-03-15 20:14:05 -0400
commit554fd8c5195424bdbcabf5de30fdc183aba391bd (patch)
tree976dc5ab7fddf506dadce60ae936f43f58787092 /gcc/testsuite/gcc.dg/vmx/bug-1.c
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Diffstat (limited to 'gcc/testsuite/gcc.dg/vmx/bug-1.c')
-rw-r--r--gcc/testsuite/gcc.dg/vmx/bug-1.c39
1 files changed, 39 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.dg/vmx/bug-1.c b/gcc/testsuite/gcc.dg/vmx/bug-1.c
new file mode 100644
index 000000000..fdf392d5f
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/vmx/bug-1.c
@@ -0,0 +1,39 @@
+#include <stdlib.h>
+#include <stdio.h>
+#include <stddef.h>
+#include <altivec.h>
+
+#define NPAGES 20
+#define NSKIP 10
+static vector float big[NPAGES*4096/16] = { {1,1,1,1} };
+/* NPAGES pages worth. */
+
+static int failed;
+
+static void f(vector float *p)
+{
+ int i = 1;
+ p = (vector float *)(((ptrdiff_t)p + 4095) & ~4095);
+
+ i += NSKIP;
+ p += NSKIP*4096/16;
+
+ while (i < NPAGES)
+ {
+ if (!vec_all_eq(*p,((vector float){0,0,0,0})))
+ {
+ printf("*p isn't zero at 0x%p, page %d\n", p, i);
+ failed++;
+ }
+ i++;
+ p += 4096/16;
+ }
+}
+
+int main(void)
+{
+ f(big);
+ if (failed)
+ abort ();
+ return 0;
+}