Add patterns for FMA3.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@165705 138bc75d-0d04-0410-961f-82ee72b054a4

1 files changed, 82 insertions, 0 deletions

diff --git a/gcc/testsuite/gcc.target/i386/fma3-builtin.c b/gcc/testsuite/gcc.target/i386/fma3-builtin.c
new file mode 100644
index 00000000000..ba8af5520e7
--- /dev/null
+++ b/gcc/testsuite/gcc.target/i386/fma3-builtin.c
@@ -0,0 +1,82 @@
+/* Test that the compiler properly generates floating point multiply
+   and add instructions FMA3 systems.  */
+
+/* { dg-do compile } */
+/* { dg-require-effective-target lp64 } */
+/* { dg-options "-O2 -mfma -mno-fma4" } */
+
+#ifndef __FP_FAST_FMAF
+# error "__FP_FAST_FMAF should be defined"
+#endif
+#ifndef __FP_FAST_FMA
+# error "__FP_FAST_FMA should be defined"
+#endif
+
+float
+flt_mul_add (float a, float b, float c)
+{
+  return __builtin_fmaf (a, b, c);
+}
+
+double
+dbl_mul_add (double a, double b, double c)
+{
+  return __builtin_fma (a, b, c);
+}
+
+float
+flt_mul_sub (float a, float b, float c)
+{
+  return __builtin_fmaf (a, b, -c);
+}
+
+double
+dbl_mul_sub (double a, double b, double c)
+{
+  return __builtin_fma (a, b, -c);
+}
+
+float
+flt_neg_mul_add_1 (float a, float b, float c)
+{
+  return __builtin_fmaf (-a, b, c);
+}
+
+double
+dbl_neg_mul_add_1 (double a, double b, double c)
+{
+  return __builtin_fma (-a, b, c);
+}
+
+float
+flt_neg_mul_add_2 (float a, float b, float c)
+{
+  return __builtin_fmaf (a, -b, c);
+}
+
+double
+dbl_neg_mul_add_2 (double a, double b, double c)
+{
+  return __builtin_fma (a, -b, c);
+}
+
+float
+flt_neg_mul_sub (float a, float b, float c)
+{
+  return __builtin_fmaf (-a, b, -c);
+}
+
+double
+dbl_neg_mul_sub (double a, double b, double c)
+{
+  return __builtin_fma (-a, b, -c);
+}
+
+/* { dg-final { scan-assembler-times "vfmadd...ss" 1 } } */
+/* { dg-final { scan-assembler-times "vfmadd...sd" 1 } } */
+/* { dg-final { scan-assembler-times "vfmsub...ss" 1 } } */
+/* { dg-final { scan-assembler-times "vfmsub...sd" 1 } } */
+/* { dg-final { scan-assembler-times "vfnmadd...ss" 2 } } */
+/* { dg-final { scan-assembler-times "vfnmadd...sd" 2 } } */
+/* { dg-final { scan-assembler-times "vfnmsub...ss" 1 } } */
+/* { dg-final { scan-assembler-times "vfnmsub...sd" 1 } } */