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-rw-r--r--gcc/testsuite/gcc.dg/pr17055-1.c25
1 files changed, 25 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.dg/pr17055-1.c b/gcc/testsuite/gcc.dg/pr17055-1.c
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+++ b/gcc/testsuite/gcc.dg/pr17055-1.c
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+/* PR middle-end/17055. */
+/* { dg-do compile } */
+/* { dg-options "-O2 -ffast-math" } */
+/* { dg-options "-O2 -ffast-math -fno-common" { target hppa*-*-hpux* } } */
+
+/* This test used to abort, beacuse we do an "integer" fold to zero, i.e.
+ x - x = (T)0 where T is the type of x. Unfortunately, fold_convert
+ was unable to convert integer_zero_node to the appropriate vector type. */
+
+typedef float v4sf __attribute__((vector_size(16)));
+typedef int v4si __attribute__((vector_size(16)));
+
+v4sf ivf, ovf;
+v4si ivi, ovi;
+
+void testf (void)
+{
+ ovf = ivf - ivf;
+}
+
+void testi (void)
+{
+ ovi = ivi - ivi;
+}
+