Add alternative testcase of phi-opt-25.c that tests phiopt

Right now phi-opt-25.c has tests like `a ? func(a) : CST`
but if we add the simplifications to match.pd, then phi-opt-25.c
will no longer be testing phiopt to make sure these get optimized.
So this adds an alternative version which is designed to test
phiopt.

Committed as obvious after testing the testcase to make sure it does not
fail on x86_64-linux-gnu.

Thanks,
Andrew Pinski

gcc/testsuite/ChangeLog:

	* gcc.dg/tree-ssa/phi-opt-25a.c: New test.

diff --git a/gcc/testsuite/gcc.dg/tree-ssa/phi-opt-25a.c b/gcc/testsuite/gcc.dg/tree-ssa/phi-opt-25a.c
new file mode 100644 (file)
index 0000000..faecac5
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/tree-ssa/phi-opt-25a.c
@@ -0,0 +1,89 @@
+/* { dg-do compile } */
+/* { dg-options "-O2 -fdump-tree-optimized" } */
+
+unsigned short test_bswap16(unsigned short x)
+{
+  if (x)
+    return __builtin_bswap16(x);
+  return 0;
+}
+
+unsigned int test_bswap32(unsigned int x)
+{
+  if (x)
+    return __builtin_bswap32(x);
+  return 0;
+}
+
+unsigned long long test_bswap64(unsigned long long x)
+{
+  if (x)
+    return __builtin_bswap64(x);
+  return 0;
+}
+
+int test_clrsb(int x)
+{
+  if (x)
+    return __builtin_clrsb(x);
+  return (__SIZEOF_INT__*8-1);
+}
+
+int test_clrsbl(long x)
+{
+  if (x)
+    return __builtin_clrsbl(x);
+  return (__SIZEOF_LONG__*8-1);
+}
+
+int test_clrsbll(long long x)
+{
+  if (x)
+    return __builtin_clrsbll(x);
+  return (__SIZEOF_LONG_LONG__*8-1);
+}
+
+int test_parity(int x)
+{
+  if (x)
+    return __builtin_parity(x);
+  return 0;
+}
+
+int test_parityl(long x)
+{
+  if (x)
+    return __builtin_parityl(x);
+  return 0;
+}
+
+int test_parityll(long long x)
+{
+  if (x)
+    return __builtin_parityll(x);
+  return 0;
+}
+
+int test_popcount(int x)
+{
+  if (x)
+    return __builtin_popcount(x);
+  return 0;
+}
+
+int test_popcountl(long x)
+{
+  if (x)
+    return __builtin_popcountl(x);
+  return 0;
+}
+
+int test_popcountll(long long x)
+{
+  if (x)
+    return __builtin_popcountll(x);
+  return 0;
+}
+
+/* { dg-final { scan-tree-dump-not "goto" "optimized" } } */
+