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-rw-r--r--gcc-4.9/gcc/testsuite/gcc.target/i386/fma4-fma-2.c66
1 files changed, 66 insertions, 0 deletions
diff --git a/gcc-4.9/gcc/testsuite/gcc.target/i386/fma4-fma-2.c b/gcc-4.9/gcc/testsuite/gcc.target/i386/fma4-fma-2.c
new file mode 100644
index 000000000..c15be1eda
--- /dev/null
+++ b/gcc-4.9/gcc/testsuite/gcc.target/i386/fma4-fma-2.c
@@ -0,0 +1,66 @@
+/* Test that the compiler properly optimizes floating point multiply
+ and add instructions into vfmaddss, vfmsubss, vfnmaddss,
+ vfnmsubss on FMA4 systems. */
+
+/* { dg-do compile { target { ! { ia32 } } } } */
+/* { dg-options "-O2 -funsafe-math-optimizations -mfma4" } */
+
+extern void exit (int);
+
+float
+flt_mul_add (float a, float c)
+{
+ return (a * a) + c;
+}
+
+double
+dbl_mul_add (double a, double c)
+{
+ return (a * a) + c;
+}
+
+float
+flt_mul_sub (float a, float c)
+{
+ return (a * a) - c;
+}
+
+double
+dbl_mul_sub (double a, double c)
+{
+ return (a * a) - c;
+}
+
+float
+flt_neg_mul_add (float a, float c)
+{
+ return (-(a * a)) + c;
+}
+
+double
+dbl_neg_mul_add (double a, double c)
+{
+ return (-(a * a)) + c;
+}
+
+float f[10] = { 2, 3, 4 };
+double d[10] = { 2, 3, 4 };
+
+int main ()
+{
+ f[3] = flt_mul_add (f[0], f[2]);
+ f[4] = flt_mul_sub (f[0], f[2]);
+ f[5] = flt_neg_mul_add (f[0], f[2]);
+
+ d[3] = dbl_mul_add (d[0], d[2]);
+ d[4] = dbl_mul_sub (d[0], d[2]);
+ d[5] = dbl_neg_mul_add (d[0], d[2]);
+ exit (0);
+}
+
+/* { dg-final { scan-assembler "vfmaddss" } } */
+/* { dg-final { scan-assembler "vfmaddsd" } } */
+/* { dg-final { scan-assembler "vfmsubss" } } */
+/* { dg-final { scan-assembler "vfmsubsd" } } */
+/* { dg-final { scan-assembler "vfnmaddss" } } */
+/* { dg-final { scan-assembler "vfnmaddsd" } } */