Index: gcc/testsuite/gcc.target/i386/x87regparm-2.c
===================================================================
--- gcc/testsuite/gcc.target/i386/x87regparm-2.c	(revision 0)
+++ gcc/testsuite/gcc.target/i386/x87regparm-2.c	(revision 0)
@@ -0,0 +1,22 @@
+/* { dg-do compile } */
+/* { dg-options "-O2 -mx87regparm -fomit-frame-pointer -ffast-math" } */
+/* { dg-require-effective-target ilp32 } */
+
+float efoo_f(float);
+double efoo_d(double);
+long double efoo_ld(long double);
+
+void test() 
+{
+  float f = 1234.5678;
+  double d = 1234.5678;
+  long double ld = 1234.5678;
+
+  f = efoo_f(f);
+  d = efoo_d(d);
+  ld = efoo_ld(ld);
+}
+
+/* Check that no memory is used to pass arguments.  */
+
+/* { dg-final { scan-assembler-not "\\(%esp\\)" } } */
Index: gcc/testsuite/gcc.target/i386/x87regparm-3.c
===================================================================
--- gcc/testsuite/gcc.target/i386/x87regparm-3.c	(revision 0)
+++ gcc/testsuite/gcc.target/i386/x87regparm-3.c	(revision 0)
@@ -0,0 +1,22 @@
+/* { dg-do compile } */
+/* { dg-options "-O2" } */
+/* { dg-require-effective-target ilp32 } */
+
+static float __attribute__((noinline)) foo_f(float f) { return f; }
+static double __attribute__((noinline)) foo_d(double d) { return d; }
+static long double __attribute__((noinline)) foo_ld(long double ld) { return ld; }
+
+void test() 
+{
+  float f = 1234.5678;
+  double d = 1234.5678;
+  long double ld = 1234.5678;
+
+  f = foo_f(f);
+  d = foo_d(d);
+  ld = foo_ld(ld);
+}
+
+/* Check that float and dobule arguments are passed through memory.  */
+
+/* { dg-final { scan-assembler-times "\\(%ebp\\)" 2 } } */
Index: gcc/testsuite/gcc.target/i386/x87regparm-1.c
===================================================================
--- gcc/testsuite/gcc.target/i386/x87regparm-1.c	(revision 0)
+++ gcc/testsuite/gcc.target/i386/x87regparm-1.c	(revision 0)
@@ -0,0 +1,30 @@
+/* { dg-do compile } */
+/* { dg-options "-O2 -fomit-frame-pointer -ffast-math" } */
+/* { dg-require-effective-target ilp32 } */
+
+float efoo_f(float) __attribute__((x87regparm));
+double efoo_d(double) __attribute__((x87regparm));
+long double efoo_ld(long double) __attribute__((x87regparm));
+
+static float __attribute__((noinline)) foo_f(float f) { return f; }
+static double __attribute__((noinline)) foo_d(double d) { return d; }
+static long double __attribute__((noinline)) foo_ld(long double ld) { return ld; }
+
+void test() 
+{
+  float f = 1234.5678;
+  double d = 1234.5678;
+  long double ld = 1234.5678;
+
+  f = efoo_f(f);
+  d = efoo_d(d);
+  ld = efoo_ld(ld);
+
+  f = foo_f(f);
+  d = foo_d(d);
+  ld = foo_ld(ld);
+}
+
+/* Check that no memory is used to pass arguments.  */
+
+/* { dg-final { scan-assembler-not "\\(%esp\\)" } } */