x86-64: Add vector vararg ABI tests

We can scan stack for return address to get vector arguments passed on
stack.

Tested on Linux/x86-64 and Linux/x32.

	* gcc.target/x86_64/abi/test_varargs-m128.c: New file.
	* gcc.target/x86_64/abi/avx/test_varargs-m256.c: Likewise.
	* gcc.target/x86_64/abi/avx512f/test_varargs-m512.c: Likewise.

From-SVN: r271329

diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog
index d60a7f4a5d09a66537cd0f88872ba681c0ae0693..af5de86ae15765579c956e94aeb0f40a7a38bee7 100644 (file)
--- a/gcc/testsuite/ChangeLog
+++ b/gcc/testsuite/ChangeLog
@@ -1,3 +1,9 @@
+2019-05-17  H.J. Lu  <hongjiu.lu@intel.com>
+
+       * gcc.target/x86_64/abi/test_varargs-m128.c: New file.
+       * gcc.target/x86_64/abi/avx/test_varargs-m256.c: Likewise.
+       * gcc.target/x86_64/abi/avx512f/test_varargs-m512.c: Likewise.
+
 2019-05-17  H.J. Lu  <hongjiu.lu@intel.com>
 
        PR target/90497

diff --git a/gcc/testsuite/gcc.target/x86_64/abi/avx/test_varargs-m256.c b/gcc/testsuite/gcc.target/x86_64/abi/avx/test_varargs-m256.c
new file mode 100644 (file)
index 0000000..0c6d61f
--- /dev/null
+++ b/gcc/testsuite/gcc.target/x86_64/abi/avx/test_varargs-m256.c
@@ -0,0 +1,104 @@
+/* Test variable number of 256-bit vector arguments passed to functions.  */
+
+#include <stdio.h>
+#include "avx-check.h"
+#include "args.h"
+
+struct IntegerRegisters iregs;
+struct FloatRegisters fregs;
+
+/* This struct holds values for argument checking.  */
+struct 
+{
+  YMM_T i0, i1, i2, i3, i4, i5, i6, i7, i8, i9;
+} values;
+
+char *pass;
+int failed = 0;
+
+#undef assert
+#define assert(c) do { \
+  if (!(c)) {failed++; printf ("failed %s\n", pass); } \
+} while (0)
+
+#define compare(X1,X2,T) do { \
+  assert (memcmp (&X1, &X2, sizeof (T)) == 0); \
+} while (0)
+
+void
+fun_check_passing_m256_varargs (__m256 i0, __m256 i1, __m256 i2,
+                               __m256 i3, ...)
+{
+  /* Check argument values.  */
+  void **fp = __builtin_frame_address (0);
+  void *ra = __builtin_return_address (0);
+  __m256 *argp;
+
+  compare (values.i0, i0, __m256);
+  compare (values.i1, i1, __m256);
+  compare (values.i2, i2, __m256);
+  compare (values.i3, i3, __m256);
+
+  /* Get the pointer to the return address on stack.  */
+  while (*fp != ra)
+    fp++;
+
+  /* Skip the return address stack slot.  */
+  argp = (__m256 *) (((char *) fp) + 8);
+
+  /* Check __m256 arguments passed on stack.  */
+  compare (values.i4, argp[0], __m256);
+  compare (values.i5, argp[1], __m256);
+  compare (values.i6, argp[2], __m256);
+  compare (values.i7, argp[3], __m256);
+  compare (values.i8, argp[4], __m256);
+  compare (values.i9, argp[5], __m256);
+
+  /* Check register contents.  */
+  compare (fregs.ymm0, ymm_regs[0], __m256);
+  compare (fregs.ymm1, ymm_regs[1], __m256);
+  compare (fregs.ymm2, ymm_regs[2], __m256);
+  compare (fregs.ymm3, ymm_regs[3], __m256);
+}
+
+#define def_check_int_passing_varargs(_i0, _i1, _i2, _i3, _i4, _i5, \
+                                     _i6, _i7, _i8, _i9, \
+                                     _func, TYPE) \
+  values.i0.TYPE[0] = _i0; \
+  values.i1.TYPE[0] = _i1; \
+  values.i2.TYPE[0] = _i2; \
+  values.i3.TYPE[0] = _i3; \
+  values.i4.TYPE[0] = _i4; \
+  values.i5.TYPE[0] = _i5; \
+  values.i6.TYPE[0] = _i6; \
+  values.i7.TYPE[0] = _i7; \
+  values.i8.TYPE[0] = _i8; \
+  values.i9.TYPE[0] = _i9; \
+  clear_struct_registers; \
+  fregs.F0.TYPE[0] = _i0; \
+  fregs.F1.TYPE[0] = _i1; \
+  fregs.F2.TYPE[0] = _i2; \
+  fregs.F3.TYPE[0] = _i3; \
+  WRAP_CALL(_func) (_i0, _i1, _i2, _i3, _i4, _i5, _i6, _i7, _i8, _i9);
+
+void
+test_m256_varargs (void)
+{
+  __m256 x[10];
+  int i;
+  for (i = 0; i < 10; i++)
+    x[i] = (__m256){32+i, 0, 0, 0, 0, 0, 0, 0};
+  pass = "m256-varargs";
+  def_check_int_passing_varargs (x[0], x[1], x[2], x[3], x[4], x[5],
+                                x[6], x[7], x[8], x[9],
+                                fun_check_passing_m256_varargs,
+                                _m256);
+}
+
+void
+avx_test (void)
+{
+  test_m256_varargs ();
+  if (failed)
+    abort ();
+}

diff --git a/gcc/testsuite/gcc.target/x86_64/abi/avx512f/test_varargs-m512.c b/gcc/testsuite/gcc.target/x86_64/abi/avx512f/test_varargs-m512.c
new file mode 100644 (file)
index 0000000..b2ba0e5
--- /dev/null
+++ b/gcc/testsuite/gcc.target/x86_64/abi/avx512f/test_varargs-m512.c
@@ -0,0 +1,104 @@
+/* Test variable number of 512-bit vector arguments passed to functions.  */
+
+#include <stdio.h>
+#include "avx512f-check.h"
+#include "args.h"
+
+struct IntegerRegisters iregs;
+struct FloatRegisters fregs;
+
+/* This struct holds values for argument checking.  */
+struct 
+{
+  ZMM_T i0, i1, i2, i3, i4, i5, i6, i7, i8, i9;
+} values;
+
+char *pass;
+int failed = 0;
+
+#undef assert
+#define assert(c) do { \
+  if (!(c)) {failed++; printf ("failed %s\n", pass); } \
+} while (0)
+
+#define compare(X1,X2,T) do { \
+  assert (memcmp (&X1, &X2, sizeof (T)) == 0); \
+} while (0)
+
+void
+fun_check_passing_m512_varargs (__m512 i0, __m512 i1, __m512 i2,
+                               __m512 i3, ...)
+{
+  /* Check argument values.  */
+  void **fp = __builtin_frame_address (0);
+  void *ra = __builtin_return_address (0);
+  __m512 *argp;
+
+  compare (values.i0, i0, __m512);
+  compare (values.i1, i1, __m512);
+  compare (values.i2, i2, __m512);
+  compare (values.i3, i3, __m512);
+
+  /* Get the pointer to the return address on stack.  */
+  while (*fp != ra)
+    fp++;
+
+  /* Skip the return address stack slot.  */
+  argp = (__m512 *)(((char *) fp) + 8);
+
+  /* Check __m512 arguments passed on stack.  */
+  compare (values.i4, argp[0], __m512);
+  compare (values.i5, argp[1], __m512);
+  compare (values.i6, argp[2], __m512);
+  compare (values.i7, argp[3], __m512);
+  compare (values.i8, argp[4], __m512);
+  compare (values.i9, argp[5], __m512);
+
+  /* Check register contents.  */
+  compare (fregs.zmm0, zmm_regs[0], __m512);
+  compare (fregs.zmm1, zmm_regs[1], __m512);
+  compare (fregs.zmm2, zmm_regs[2], __m512);
+  compare (fregs.zmm3, zmm_regs[3], __m512);
+}
+
+#define def_check_int_passing_varargs(_i0, _i1, _i2, _i3, _i4, _i5, \
+                                     _i6, _i7, _i8, _i9, \
+                                     _func, TYPE) \
+  values.i0.TYPE[0] = _i0; \
+  values.i1.TYPE[0] = _i1; \
+  values.i2.TYPE[0] = _i2; \
+  values.i3.TYPE[0] = _i3; \
+  values.i4.TYPE[0] = _i4; \
+  values.i5.TYPE[0] = _i5; \
+  values.i6.TYPE[0] = _i6; \
+  values.i7.TYPE[0] = _i7; \
+  values.i8.TYPE[0] = _i8; \
+  values.i9.TYPE[0] = _i9; \
+  clear_struct_registers; \
+  fregs.F0.TYPE[0] = _i0; \
+  fregs.F1.TYPE[0] = _i1; \
+  fregs.F2.TYPE[0] = _i2; \
+  fregs.F3.TYPE[0] = _i3; \
+  WRAP_CALL(_func) (_i0, _i1, _i2, _i3, _i4, _i5, _i6, _i7, _i8, _i9);
+
+void
+test_m512_varargs (void)
+{
+  __m512 x[10];
+  int i;
+  for (i = 0; i < 10; i++)
+    x[i] = (__m512){32+i, 0, 0, 0, 0, 0, 0, 0};
+  pass = "m512-varargs";
+  def_check_int_passing_varargs (x[0], x[1], x[2], x[3], x[4], x[5],
+                                x[6], x[7], x[8], x[9],
+                                fun_check_passing_m512_varargs,
+                                _m512);
+}
+
+void
+avx512f_test (void)
+{
+  test_m512_varargs ();
+  if (failed)
+    abort ();
+}

diff --git a/gcc/testsuite/gcc.target/x86_64/abi/test_varargs-m128.c b/gcc/testsuite/gcc.target/x86_64/abi/test_varargs-m128.c
new file mode 100644 (file)
index 0000000..3075768
--- /dev/null
+++ b/gcc/testsuite/gcc.target/x86_64/abi/test_varargs-m128.c
@@ -0,0 +1,110 @@
+/* Test variable number of 128-bit vector arguments passed to functions.  */
+
+#include <stdio.h>
+#include "defines.h"
+#include "macros.h"
+#include "args.h"
+
+struct IntegerRegisters iregs;
+struct FloatRegisters fregs;
+
+/* This struct holds values for argument checking.  */
+struct 
+{
+  XMM_T i0, i1, i2, i3, i4, i5, i6, i7, i8, i9;
+} values;
+
+char *pass;
+int failed = 0;
+
+#undef assert
+#define assert(c) do { \
+  if (!(c)) {failed++; printf ("failed %s\n", pass); } \
+} while (0)
+
+#define compare(X1,X2,T) do { \
+  assert (memcmp (&X1, &X2, sizeof (T)) == 0); \
+} while (0)
+
+void
+fun_check_passing_m128_varargs (__m128 i0, __m128 i1, __m128 i2,
+                               __m128 i3, ...)
+{
+  /* Check argument values.  */
+  void **fp = __builtin_frame_address (0);
+  void *ra = __builtin_return_address (0);
+  __m128 *argp;
+
+  compare (values.i0, i0, __m128);
+  compare (values.i1, i1, __m128);
+  compare (values.i2, i2, __m128);
+  compare (values.i3, i3, __m128);
+
+  /* Get the pointer to the return address on stack.  */
+  while (*fp != ra)
+    fp++;
+
+  /* Skip the return address stack slot.  */
+  argp = (__m128 *) (((char *) fp) + 8);
+
+  /* Check __m128 arguments passed on stack.  */
+  compare (values.i8, argp[0], __m128);
+  compare (values.i9, argp[1], __m128);
+
+  /* Check register contents.  */
+  compare (fregs.xmm0, xmm_regs[0], __m128);
+  compare (fregs.xmm1, xmm_regs[1], __m128);
+  compare (fregs.xmm2, xmm_regs[2], __m128);
+  compare (fregs.xmm3, xmm_regs[3], __m128);
+  compare (fregs.xmm4, xmm_regs[4], __m128);
+  compare (fregs.xmm5, xmm_regs[5], __m128);
+  compare (fregs.xmm6, xmm_regs[6], __m128);
+  compare (fregs.xmm7, xmm_regs[7], __m128);
+}
+
+#define def_check_int_passing_varargs(_i0, _i1, _i2, _i3, _i4, _i5, \
+                                     _i6, _i7, _i8, _i9, \
+                                     _func, TYPE) \
+  values.i0.TYPE[0] = _i0; \
+  values.i1.TYPE[0] = _i1; \
+  values.i2.TYPE[0] = _i2; \
+  values.i3.TYPE[0] = _i3; \
+  values.i4.TYPE[0] = _i4; \
+  values.i5.TYPE[0] = _i5; \
+  values.i6.TYPE[0] = _i6; \
+  values.i7.TYPE[0] = _i7; \
+  values.i8.TYPE[0] = _i8; \
+  values.i9.TYPE[0] = _i9; \
+  clear_float_registers; \
+  fregs.F0.TYPE[0] = _i0; \
+  fregs.F1.TYPE[0] = _i1; \
+  fregs.F2.TYPE[0] = _i2; \
+  fregs.F3.TYPE[0] = _i3; \
+  fregs.F4.TYPE[0] = _i4; \
+  fregs.F5.TYPE[0] = _i5; \
+  fregs.F6.TYPE[0] = _i6; \
+  fregs.F7.TYPE[0] = _i7; \
+  WRAP_CALL(_func) (_i0, _i1, _i2, _i3, _i4, _i5, _i6, _i7, _i8, _i9);
+
+void
+test_m128_varargs (void)
+{
+  __m128 x[10];
+  int i;
+  for (i = 0; i < 10; i++)
+    x[i] = (__m128){32+i, 0, 0, 0};
+  pass = "m128-varargs";
+  def_check_int_passing_varargs (x[0], x[1], x[2], x[3], x[4], x[5],
+                                x[6], x[7], x[8], x[9],
+                                fun_check_passing_m128_varargs,
+                                _m128);
+}
+
+int
+main (void)
+{
+  test_m128_varargs ();
+  if (failed)
+    abort ();
+  return 0;
+}