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* [gcc r13-2041] x86: Enable __bf16 type for TARGET_SSE2 and above
@ 2022-08-15 6:42 Kong Lingling
0 siblings, 0 replies; only message in thread
From: Kong Lingling @ 2022-08-15 6:42 UTC (permalink / raw)
To: gcc-cvs
https://gcc.gnu.org/g:6624ad73064de241e937e97a28b65c50fe14c78e
commit r13-2041-g6624ad73064de241e937e97a28b65c50fe14c78e
Author: konglin1 <lingling.kong@intel.com>
Date: Mon Aug 15 14:39:22 2022 +0800
x86: Enable __bf16 type for TARGET_SSE2 and above
gcc/ChangeLog:
* config/i386/i386-builtin-types.def (BFLOAT16): New primitive type.
* config/i386/i386-builtins.cc : Support __bf16 type for i386 backend.
(ix86_register_bf16_builtin_type): New function.
(ix86_bf16_type_node): New.
(ix86_bf16_ptr_type_node): Ditto.
(ix86_init_builtin_types): Add ix86_register_bf16_builtin_type function call.
* config/i386/i386-modes.def (FLOAT_MODE): Add BFmode.
(ADJUST_FLOAT_FORMAT): Ditto.
* config/i386/i386.cc (classify_argument): Handle BFmode.
(construct_container): Ditto.
(function_value_32): Return __bf16 by %xmm0.
(function_value_64): Return __bf16 by SSE register.
(ix86_output_ssemov): Handle BFmode.
(ix86_legitimate_constant_p): Disable BFmode constant double.
(ix86_secondary_reload): Require gpr as intermediate register
to store __bf16 from sse register when sse4 is not available.
(ix86_scalar_mode_supported_p): Enable __bf16 under sse2.
(ix86_mangle_type): Add manlging for __bf16 type.
(ix86_invalid_conversion): New function for target hook.
(ix86_invalid_unary_op): Ditto.
(ix86_invalid_binary_op): Ditto.
(TARGET_INVALID_CONVERSION): New define for target hook.
(TARGET_INVALID_UNARY_OP): Ditto.
(TARGET_INVALID_BINARY_OP): Ditto.
* config/i386/i386.h (host_detect_local_cpu): Add BFmode.
* config/i386/i386.md ("mode"): Add BFmode.
(MODE_SIZE): Ditto.
(X87MODEFH): Ditto.
(HFBF): Add new define_mode_iterator.
(*pushhf_rex64): Change for BFmode.
(*push<mode>_rex64): Ditto.
(*pushhf): Ditto.
(*push<mode>): Ditto.
(MODESH): Ditto.
(hfbfconstf): Add new define_mode_attr.
(*mov<mode>_internal): Add BFmode.
gcc/testsuite/ChangeLog:
* g++.target/i386/bfloat_cpp_typecheck.C: New test.
* gcc.target/i386/bfloat16-1.c: Ditto.
* gcc.target/i386/sse2-bfloat16-1.c: Ditto.
* gcc.target/i386/sse2-bfloat16-2.c: Ditto.
* gcc.target/i386/sse2-bfloat16-scalar-typecheck.c: Ditto.
Diff:
---
gcc/config/i386/i386-builtin-types.def | 1 +
gcc/config/i386/i386-builtins.cc | 21 ++
gcc/config/i386/i386-modes.def | 2 +
gcc/config/i386/i386.cc | 80 +++++++-
gcc/config/i386/i386.h | 4 +-
gcc/config/i386/i386.md | 45 +++--
.../g++.target/i386/bfloat_cpp_typecheck.C | 10 +
gcc/testsuite/gcc.target/i386/bfloat16-1.c | 12 ++
gcc/testsuite/gcc.target/i386/sse2-bfloat16-1.c | 8 +
gcc/testsuite/gcc.target/i386/sse2-bfloat16-2.c | 17 ++
.../i386/sse2-bfloat16-scalar-typecheck.c | 215 +++++++++++++++++++++
11 files changed, 391 insertions(+), 24 deletions(-)
diff --git a/gcc/config/i386/i386-builtin-types.def b/gcc/config/i386/i386-builtin-types.def
index 7a2da1db0b0..63a360b0f8b 100644
--- a/gcc/config/i386/i386-builtin-types.def
+++ b/gcc/config/i386/i386-builtin-types.def
@@ -69,6 +69,7 @@ DEF_PRIMITIVE_TYPE (UINT16, short_unsigned_type_node)
DEF_PRIMITIVE_TYPE (INT64, long_long_integer_type_node)
DEF_PRIMITIVE_TYPE (UINT64, long_long_unsigned_type_node)
DEF_PRIMITIVE_TYPE (FLOAT16, ix86_float16_type_node)
+DEF_PRIMITIVE_TYPE (BFLOAT16, ix86_bf16_type_node)
DEF_PRIMITIVE_TYPE (FLOAT, float_type_node)
DEF_PRIMITIVE_TYPE (DOUBLE, double_type_node)
DEF_PRIMITIVE_TYPE (FLOAT80, float80_type_node)
diff --git a/gcc/config/i386/i386-builtins.cc b/gcc/config/i386/i386-builtins.cc
index fe7243c3837..6a04fb57e65 100644
--- a/gcc/config/i386/i386-builtins.cc
+++ b/gcc/config/i386/i386-builtins.cc
@@ -126,6 +126,9 @@ BDESC_VERIFYS (IX86_BUILTIN_MAX,
static GTY(()) tree ix86_builtin_type_tab[(int) IX86_BT_LAST_CPTR + 1];
tree ix86_float16_type_node = NULL_TREE;
+tree ix86_bf16_type_node = NULL_TREE;
+tree ix86_bf16_ptr_type_node = NULL_TREE;
+
/* Retrieve an element from the above table, building some of
the types lazily. */
@@ -1366,6 +1369,22 @@ ix86_register_float16_builtin_type (void)
"_Float16");
}
+static void
+ix86_register_bf16_builtin_type (void)
+{
+ ix86_bf16_type_node = make_node (REAL_TYPE);
+ TYPE_PRECISION (ix86_bf16_type_node) = 16;
+ SET_TYPE_MODE (ix86_bf16_type_node, BFmode);
+ layout_type (ix86_bf16_type_node);
+
+ if (!maybe_get_identifier ("__bf16") && TARGET_SSE2)
+ {
+ lang_hooks.types.register_builtin_type (ix86_bf16_type_node,
+ "__bf16");
+ ix86_bf16_ptr_type_node = build_pointer_type (ix86_bf16_type_node);
+ }
+}
+
static void
ix86_init_builtin_types (void)
{
@@ -1396,6 +1415,8 @@ ix86_init_builtin_types (void)
ix86_register_float16_builtin_type ();
+ ix86_register_bf16_builtin_type ();
+
const_string_type_node
= build_pointer_type (build_qualified_type
(char_type_node, TYPE_QUAL_CONST));
diff --git a/gcc/config/i386/i386-modes.def b/gcc/config/i386/i386-modes.def
index e2e1e18d24d..b49daaef253 100644
--- a/gcc/config/i386/i386-modes.def
+++ b/gcc/config/i386/i386-modes.def
@@ -24,6 +24,8 @@ along with GCC; see the file COPYING3. If not see
FRACTIONAL_FLOAT_MODE (XF, 80, 12, ieee_extended_intel_96_format);
FLOAT_MODE (TF, 16, ieee_quad_format);
FLOAT_MODE (HF, 2, ieee_half_format);
+FLOAT_MODE (BF, 2, 0);
+ADJUST_FLOAT_FORMAT (BF, &arm_bfloat_half_format);
/* In ILP32 mode, XFmode has size 12 and alignment 4.
In LP64 mode, XFmode has size and alignment 16. */
diff --git a/gcc/config/i386/i386.cc b/gcc/config/i386/i386.cc
index 5be76e1dd6f..fa3722a11e1 100644
--- a/gcc/config/i386/i386.cc
+++ b/gcc/config/i386/i386.cc
@@ -2399,6 +2399,7 @@ classify_argument (machine_mode mode, const_tree type,
case E_CTImode:
return 0;
case E_HFmode:
+ case E_BFmode:
if (!(bit_offset % 64))
classes[0] = X86_64_SSEHF_CLASS;
else
@@ -2792,9 +2793,10 @@ construct_container (machine_mode mode, machine_mode orig_mode,
intreg++;
break;
case X86_64_SSEHF_CLASS:
+ tmpmode = (mode == BFmode ? BFmode : HFmode);
exp [nexps++]
= gen_rtx_EXPR_LIST (VOIDmode,
- gen_rtx_REG (HFmode,
+ gen_rtx_REG (tmpmode,
GET_SSE_REGNO (sse_regno)),
GEN_INT (i*8));
sse_regno++;
@@ -4001,8 +4003,8 @@ function_value_32 (machine_mode orig_mode, machine_mode mode,
/* Most things go in %eax. */
regno = AX_REG;
- /* Return _Float16/_Complex _Foat16 by sse register. */
- if (mode == HFmode)
+ /* Return __bf16/ _Float16/_Complex _Foat16 by sse register. */
+ if (mode == HFmode || mode == BFmode)
regno = FIRST_SSE_REG;
if (mode == HCmode)
{
@@ -4050,6 +4052,7 @@ function_value_64 (machine_mode orig_mode, machine_mode mode,
switch (mode)
{
+ case E_BFmode:
case E_HFmode:
case E_HCmode:
case E_SFmode:
@@ -5631,6 +5634,7 @@ ix86_output_ssemov (rtx_insn *insn, rtx *operands)
return "%vmovss\t{%1, %0|%0, %1}";
case MODE_HF:
+ case MODE_BF:
if (REG_P (operands[0]) && REG_P (operands[1]))
return "vmovsh\t{%d1, %0|%0, %d1}";
else
@@ -10648,6 +10652,11 @@ ix86_legitimate_constant_p (machine_mode mode, rtx x)
case CONST_VECTOR:
if (!standard_sse_constant_p (x, mode))
return false;
+ break;
+
+ case CONST_DOUBLE:
+ if (mode == E_BFmode)
+ return false;
default:
break;
@@ -19415,7 +19424,8 @@ ix86_secondary_reload (bool in_p, rtx x, reg_class_t rclass,
}
/* Require movement to gpr, and then store to memory. */
- if ((mode == HFmode || mode == HImode || mode == V2QImode)
+ if ((mode == HFmode || mode == HImode || mode == V2QImode
+ || mode == BFmode)
&& !TARGET_SSE4_1
&& SSE_CLASS_P (rclass)
&& !in_p && MEM_P (x))
@@ -22358,7 +22368,7 @@ ix86_scalar_mode_supported_p (scalar_mode mode)
return default_decimal_float_supported_p ();
else if (mode == TFmode)
return true;
- else if (mode == HFmode && TARGET_SSE2)
+ else if ((mode == HFmode || mode == BFmode) && TARGET_SSE2)
return true;
else
return default_scalar_mode_supported_p (mode);
@@ -22673,6 +22683,8 @@ ix86_mangle_type (const_tree type)
switch (TYPE_MODE (type))
{
+ case E_BFmode:
+ return "u6__bf16";
case E_HFmode:
/* _Float16 is "DF16_".
Align with clang's decision in https://reviews.llvm.org/D33719. */
@@ -22688,6 +22700,55 @@ ix86_mangle_type (const_tree type)
}
}
+/* Return the diagnostic message string if conversion from FROMTYPE to
+ TOTYPE is not allowed, NULL otherwise. */
+
+static const char *
+ix86_invalid_conversion (const_tree fromtype, const_tree totype)
+{
+ if (element_mode (fromtype) != element_mode (totype))
+ {
+ /* Do no allow conversions to/from BFmode scalar types. */
+ if (TYPE_MODE (fromtype) == BFmode)
+ return N_("invalid conversion from type %<__bf16%>");
+ if (TYPE_MODE (totype) == BFmode)
+ return N_("invalid conversion to type %<__bf16%>");
+ }
+
+ /* Conversion allowed. */
+ return NULL;
+}
+
+/* Return the diagnostic message string if the unary operation OP is
+ not permitted on TYPE, NULL otherwise. */
+
+static const char *
+ix86_invalid_unary_op (int op, const_tree type)
+{
+ /* Reject all single-operand operations on BFmode except for &. */
+ if (element_mode (type) == BFmode && op != ADDR_EXPR)
+ return N_("operation not permitted on type %<__bf16%>");
+
+ /* Operation allowed. */
+ return NULL;
+}
+
+/* Return the diagnostic message string if the binary operation OP is
+ not permitted on TYPE1 and TYPE2, NULL otherwise. */
+
+static const char *
+ix86_invalid_binary_op (int op ATTRIBUTE_UNUSED, const_tree type1,
+ const_tree type2)
+{
+ /* Reject all 2-operand operations on BFmode. */
+ if (element_mode (type1) == BFmode
+ || element_mode (type2) == BFmode)
+ return N_("operation not permitted on type %<__bf16%>");
+
+ /* Operation allowed. */
+ return NULL;
+}
+
static GTY(()) tree ix86_tls_stack_chk_guard_decl;
static tree
@@ -24745,6 +24806,15 @@ ix86_libgcc_floating_mode_supported_p
#undef TARGET_MANGLE_TYPE
#define TARGET_MANGLE_TYPE ix86_mangle_type
+#undef TARGET_INVALID_CONVERSION
+#define TARGET_INVALID_CONVERSION ix86_invalid_conversion
+
+#undef TARGET_INVALID_UNARY_OP
+#define TARGET_INVALID_UNARY_OP ix86_invalid_unary_op
+
+#undef TARGET_INVALID_BINARY_OP
+#define TARGET_INVALID_BINARY_OP ix86_invalid_binary_op
+
#undef TARGET_STACK_PROTECT_GUARD
#define TARGET_STACK_PROTECT_GUARD ix86_stack_protect_guard
diff --git a/gcc/config/i386/i386.h b/gcc/config/i386/i386.h
index f16df633e84..0da3dce1d31 100644
--- a/gcc/config/i386/i386.h
+++ b/gcc/config/i386/i386.h
@@ -1046,7 +1046,7 @@ extern const char *host_detect_local_cpu (int argc, const char **argv);
|| (MODE) == V8HFmode || (MODE) == V4HFmode || (MODE) == V2HFmode \
|| (MODE) == V4QImode || (MODE) == V2HImode || (MODE) == V1SImode \
|| (MODE) == V2DImode || (MODE) == V2QImode || (MODE) == DFmode \
- || (MODE) == HFmode)
+ || (MODE) == HFmode || (MODE) == BFmode)
#define VALID_SSE_REG_MODE(MODE) \
((MODE) == V1TImode || (MODE) == TImode \
@@ -1077,7 +1077,7 @@ extern const char *host_detect_local_cpu (int argc, const char **argv);
|| (MODE) == CQImode || (MODE) == CHImode \
|| (MODE) == CSImode || (MODE) == CDImode \
|| (MODE) == SDmode || (MODE) == DDmode \
- || (MODE) == HFmode || (MODE) == HCmode \
+ || (MODE) == HFmode || (MODE) == HCmode || (MODE) == BFmode \
|| (MODE) == V2HImode || (MODE) == V2HFmode \
|| (MODE) == V1SImode || (MODE) == V4QImode || (MODE) == V2QImode \
|| (TARGET_64BIT \
diff --git a/gcc/config/i386/i386.md b/gcc/config/i386/i386.md
index 2fde8cdf48b..5f7e2457f5c 100644
--- a/gcc/config/i386/i386.md
+++ b/gcc/config/i386/i386.md
@@ -499,7 +499,7 @@
;; Main data type used by the insn
(define_attr "mode"
- "unknown,none,QI,HI,SI,DI,TI,OI,XI,HF,SF,DF,XF,TF,V32HF,V16HF,V8HF,
+ "unknown,none,QI,HI,SI,DI,TI,OI,XI,HF,BF,SF,DF,XF,TF,V32HF,V16HF,V8HF,
V16SF,V8SF,V4DF,V4SF,V2DF,V2SF,V1DF,V8DF,V4HF,V2HF"
(const_string "unknown"))
@@ -1104,7 +1104,7 @@
;; GET_MODE_SIZE (<MODE>mode). For XFmode which depends on
;; command line options just use GET_MODE_SIZE macro.
(define_mode_attr MODE_SIZE [(QI "1") (HI "2") (SI "4") (DI "8")
- (TI "16") (HF "2") (SF "4") (DF "8")
+ (TI "16") (HF "2") (BF "2") (SF "4") (DF "8")
(XF "GET_MODE_SIZE (XFmode)")
(V16QI "16") (V32QI "32") (V64QI "64")
(V8HI "16") (V16HI "32") (V32HI "64")
@@ -1248,7 +1248,7 @@
(define_mode_iterator X87MODEF [SF DF XF])
;; All x87 floating point modes plus HFmode
-(define_mode_iterator X87MODEFH [HF SF DF XF])
+(define_mode_iterator X87MODEFH [HF SF DF XF BF])
;; All SSE floating point modes
(define_mode_iterator SSEMODEF [HF SF DF TF])
@@ -3439,9 +3439,11 @@
operands[0] = replace_equiv_address (operands[0], stack_pointer_rtx);
})
-(define_insn "*pushhf_rex64"
- [(set (match_operand:HF 0 "push_operand" "=X,X")
- (match_operand:HF 1 "nonmemory_no_elim_operand" "r,x"))]
+(define_mode_iterator HFBF [HF BF])
+
+(define_insn "*push<mode>_rex64"
+ [(set (match_operand:HFBF 0 "push_operand" "=X,X")
+ (match_operand:HFBF 1 "nonmemory_no_elim_operand" "r,x"))]
"TARGET_64BIT"
{
/* Anything else should be already split before reg-stack. */
@@ -3452,9 +3454,9 @@
(set_attr "type" "push,multi")
(set_attr "mode" "DI,TI")])
-(define_insn "*pushhf"
- [(set (match_operand:HF 0 "push_operand" "=X,X")
- (match_operand:HF 1 "general_no_elim_operand" "rmF,x"))]
+(define_insn "*push<mode>"
+ [(set (match_operand:HFBF 0 "push_operand" "=X,X")
+ (match_operand:HFBF 1 "general_no_elim_operand" "rmF,x"))]
"!TARGET_64BIT"
{
/* Anything else should be already split before reg-stack. */
@@ -3493,7 +3495,7 @@
(set_attr "unit" "i387,*,*")
(set_attr "mode" "SF,SI,SF")])
-(define_mode_iterator MODESH [SF HF])
+(define_mode_iterator MODESH [SF HF BF])
;; %%% Kill this when call knows how to work this out.
(define_split
[(set (match_operand:MODESH 0 "push_operand")
@@ -3981,18 +3983,21 @@
]
(const_string "*")))])
-(define_insn "*movhf_internal"
- [(set (match_operand:HF 0 "nonimmediate_operand"
+(define_mode_attr hfbfconstf
+ [(HF "F") (BF "")])
+
+(define_insn "*mov<mode>_internal"
+ [(set (match_operand:HFBF 0 "nonimmediate_operand"
"=?r,?r,?r,?m,v,v,?r,m,?v,v")
- (match_operand:HF 1 "general_operand"
- "r ,F ,m ,rF,C,v, v,v,r ,m"))]
+ (match_operand:HFBF 1 "general_operand"
+ "r ,F ,m ,r<hfbfconstf>,C,v, v,v,r ,m"))]
"!(MEM_P (operands[0]) && MEM_P (operands[1]))
&& (lra_in_progress
|| reload_completed
|| !CONST_DOUBLE_P (operands[1])
|| (TARGET_SSE2
- && standard_sse_constant_p (operands[1], HFmode) == 1)
- || memory_operand (operands[0], HFmode))"
+ && standard_sse_constant_p (operands[1], <MODE>mode) == 1)
+ || memory_operand (operands[0], <MODE>mode))"
{
switch (get_attr_type (insn))
{
@@ -4087,7 +4092,13 @@
(not (match_test "TARGET_HIMODE_MATH"))))
(const_string "SI")
]
- (const_string "HI")))])
+ (const_string "HI")))
+ (set (attr "enabled")
+ (cond [(and (match_test "<MODE>mode == BFmode")
+ (eq_attr "alternative" "1"))
+ (symbol_ref "false")
+ ]
+ (const_string "*")))])
(define_split
[(set (match_operand 0 "any_fp_register_operand")
diff --git a/gcc/testsuite/g++.target/i386/bfloat_cpp_typecheck.C b/gcc/testsuite/g++.target/i386/bfloat_cpp_typecheck.C
new file mode 100644
index 00000000000..5152336efe6
--- /dev/null
+++ b/gcc/testsuite/g++.target/i386/bfloat_cpp_typecheck.C
@@ -0,0 +1,10 @@
+/* { dg-do compile } */
+/* { dg-options "-msse2 -O3 --save-temps" } */
+
+void foo (void)
+{
+ __bf16 (); /* { dg-bogus {invalid conversion to type '__bf16'} "" { xfail *-*-* } } */
+ __bf16 a = __bf16(); /* { dg-bogus {invalid conversion to type '__bf16'} "" { xfail *-*-* } } */
+ __bf16 (0x1234); /* { dg-error {invalid conversion to type '__bf16'} } */
+ __bf16 (0.1); /* { dg-error {invalid conversion to type '__bf16'} } */
+}
diff --git a/gcc/testsuite/gcc.target/i386/bfloat16-1.c b/gcc/testsuite/gcc.target/i386/bfloat16-1.c
new file mode 100644
index 00000000000..6aaec28efd2
--- /dev/null
+++ b/gcc/testsuite/gcc.target/i386/bfloat16-1.c
@@ -0,0 +1,12 @@
+/* { dg-do compile } */
+/* { dg-options "-msse2 -O2" } */
+__bf16
+foo (int a)
+{
+ union {
+ int a;
+ __bf16 b;
+ }c;
+ c.a = a;
+ return c.b;
+}
diff --git a/gcc/testsuite/gcc.target/i386/sse2-bfloat16-1.c b/gcc/testsuite/gcc.target/i386/sse2-bfloat16-1.c
new file mode 100644
index 00000000000..612d55be826
--- /dev/null
+++ b/gcc/testsuite/gcc.target/i386/sse2-bfloat16-1.c
@@ -0,0 +1,8 @@
+/* { dg-do compile } */
+/* { dg-options "-O2 -mno-sse2" } */
+
+__bf16/* { dg-error "unknown type name '__bf16'" } */
+foo (__bf16 x) /* { dg-error "unknown type name '__bf16'" } */
+{
+ return x;
+}
diff --git a/gcc/testsuite/gcc.target/i386/sse2-bfloat16-2.c b/gcc/testsuite/gcc.target/i386/sse2-bfloat16-2.c
new file mode 100644
index 00000000000..a3286e26c48
--- /dev/null
+++ b/gcc/testsuite/gcc.target/i386/sse2-bfloat16-2.c
@@ -0,0 +1,17 @@
+/* { dg-do compile } */
+/* { dg-options "-O2 -msse2 -mno-avx512f" } */
+
+union flt
+{
+ __bf16 flt;
+ short s;
+};
+
+__bf16
+foo (union flt x)
+{
+ return x.flt;
+}
+
+/* { dg-final { scan-assembler {(?n)pinsrw[\t ].*%xmm0} { target ia32 } } } */
+/* { dg-final { scan-assembler {(?n)movd[\t ].*%xmm0} { target { ! ia32 } } } } */
diff --git a/gcc/testsuite/gcc.target/i386/sse2-bfloat16-scalar-typecheck.c b/gcc/testsuite/gcc.target/i386/sse2-bfloat16-scalar-typecheck.c
new file mode 100644
index 00000000000..f76d5547758
--- /dev/null
+++ b/gcc/testsuite/gcc.target/i386/sse2-bfloat16-scalar-typecheck.c
@@ -0,0 +1,215 @@
+/* { dg-do compile } */
+/* { dg-options "-msse2 -O2" } */
+
+
+__bf16 glob_bfloat;
+
+int is_an_int;
+short is_a_short_int;
+float is_a_float;
+float is_a_float16;
+double is_a_double;
+
+float *float_ptr;
+
+__bf16 foo1 (void) { return (__bf16) 0x1234; } /* { dg-error {invalid conversion to type '__bf16'} } */
+__bf16 foo2 (void) { return (__bf16) (short) 0x1234; } /* { dg-error {invalid conversion to type '__bf16'} } */
+
+__bf16 footest (__bf16 scalar0)
+{
+
+ /* Initialisation */
+
+ __bf16 scalar1_1;
+ __bf16 scalar1_2 = glob_bfloat;
+ __bf16 scalar1_3 = 0; /* { dg-error {invalid conversion to type '__bf16'} } */
+ __bf16 scalar1_4 = 0.1; /* { dg-error {invalid conversion to type '__bf16'} } */
+ __bf16 scalar1_5 = is_a_float; /* { dg-error {invalid conversion to type '__bf16'} } */
+ __bf16 scalar1_6 = is_an_int; /* { dg-error {invalid conversion to type '__bf16'} } */
+ __bf16 scalar1_7 = is_a_float16; /* { dg-error {invalid conversion to type '__bf16'} } */
+ __bf16 scalar1_8 = is_a_double; /* { dg-error {invalid conversion to type '__bf16'} } */
+ __bf16 scalar1_9 = is_a_short_int; /* { dg-error {invalid conversion to type '__bf16'} } */
+
+ int initi_1_1 = glob_bfloat; /* { dg-error {invalid conversion from type '__bf16'} } */
+ float initi_1_2 = glob_bfloat; /* { dg-error {invalid conversion from type '__bf16'} } */
+ _Float16 initi_1_3 = glob_bfloat; /* { dg-error {invalid conversion from type '__bf16'} } */
+ short initi_1_4 = glob_bfloat; /* { dg-error {invalid conversion from type '__bf16'} } */
+ double initi_1_5 = glob_bfloat; /* { dg-error {invalid conversion from type '__bf16'} } */
+
+ __bf16 scalar2_1 = {}; /* { dg-error {empty scalar initializer} } */
+ __bf16 scalar2_2 = { glob_bfloat };
+ __bf16 scalar2_3 = { 0 }; /* { dg-error {invalid conversion to type '__bf16'} } */
+ __bf16 scalar2_4 = { 0.1 }; /* { dg-error {invalid conversion to type '__bf16'} } */
+ __bf16 scalar2_5 = { is_a_float }; /* { dg-error {invalid conversion to type '__bf16'} } */
+ __bf16 scalar2_6 = { is_an_int }; /* { dg-error {invalid conversion to type '__bf16'} } */
+ __bf16 scalar2_7 = { is_a_float16 }; /* { dg-error {invalid conversion to type '__bf16'} } */
+ __bf16 scalar2_8 = { is_a_double }; /* { dg-error {invalid conversion to type '__bf16'} } */
+ __bf16 scalar2_9 = { is_a_short_int }; /* { dg-error {invalid conversion to type '__bf16'} } */
+
+ int initi_2_1 = { glob_bfloat }; /* { dg-error {invalid conversion from type '__bf16'} } */
+ float initi_2_2 = { glob_bfloat }; /* { dg-error {invalid conversion from type '__bf16'} } */
+ _Float16 initi_2_3 = { glob_bfloat }; /* { dg-error {invalid conversion from type '__bf16'} } */
+ short initi_2_4 = { glob_bfloat }; /* { dg-error {invalid conversion from type '__bf16'} } */
+ double initi_2_5 = { glob_bfloat }; /* { dg-error {invalid conversion from type '__bf16'} } */
+
+ /* Assignments. */
+
+ glob_bfloat = glob_bfloat;
+ glob_bfloat = 0; /* { dg-error {invalid conversion to type '__bf16'} } */
+ glob_bfloat = 0.1; /* { dg-error {invalid conversion to type '__bf16'} } */
+ glob_bfloat = is_a_float; /* { dg-error {invalid conversion to type '__bf16'} } */
+ glob_bfloat = is_an_int; /* { dg-error {invalid conversion to type '__bf16'} } */
+ glob_bfloat = is_a_float16; /* { dg-error {invalid conversion to type '__bf16'} } */
+ glob_bfloat = is_a_double; /* { dg-error {invalid conversion to type '__bf16'} } */
+ glob_bfloat = is_a_short_int; /* { dg-error {invalid conversion to type '__bf16'} } */
+
+ is_an_int = glob_bfloat; /* { dg-error {invalid conversion from type '__bf16'} } */
+ is_a_float = glob_bfloat; /* { dg-error {invalid conversion from type '__bf16'} } */
+ is_a_float16 = glob_bfloat; /* { dg-error {invalid conversion from type '__bf16'} } */
+ is_a_double = glob_bfloat; /* { dg-error {invalid conversion from type '__bf16'} } */
+ is_a_short_int = glob_bfloat; /* { dg-error {invalid conversion from type '__bf16'} } */
+
+ /* Casting. */
+
+ (void) glob_bfloat;
+ (__bf16) glob_bfloat;
+
+ (int) glob_bfloat; /* { dg-error {invalid conversion from type '__bf16'} } */
+ (float) glob_bfloat; /* { dg-error {invalid conversion from type '__bf16'} } */
+ (_Float16) glob_bfloat; /* { dg-error {invalid conversion from type '__bf16'} } */
+ (double) glob_bfloat; /* { dg-error {invalid conversion from type '__bf16'} } */
+ (short) glob_bfloat; /* { dg-error {invalid conversion from type '__bf16'} } */
+
+ (__bf16) is_an_int; /* { dg-error {invalid conversion to type '__bf16'} } */
+ (__bf16) is_a_float; /* { dg-error {invalid conversion to type '__bf16'} } */
+ (__bf16) is_a_float16; /* { dg-error {invalid conversion to type '__bf16'} } */
+ (__bf16) is_a_double; /* { dg-error {invalid conversion to type '__bf16'} } */
+ (__bf16) is_a_short_int; /* { dg-error {invalid conversion to type '__bf16'} } */
+
+ /* Compound literals. */
+
+ (__bf16) {}; /* { dg-error {empty scalar initializer} } */
+ (__bf16) { glob_bfloat };
+ (__bf16) { 0 }; /* { dg-error {invalid conversion to type '__bf16'} } */
+ (__bf16) { 0.1 }; /* { dg-error {invalid conversion to type '__bf16'} } */
+ (__bf16) { is_a_float }; /* { dg-error {invalid conversion to type '__bf16'} } */
+ (__bf16) { is_an_int }; /* { dg-error {invalid conversion to type '__bf16'} } */
+ (__bf16) { is_a_float16 }; /* { dg-error {invalid conversion to type '__bf16'} } */
+ (__bf16) { is_a_double }; /* { dg-error {invalid conversion to type '__bf16'} } */
+ (__bf16) { is_a_short_int }; /* { dg-error {invalid conversion to type '__bf16'} } */
+
+ (int) { glob_bfloat }; /* { dg-error {invalid conversion from type '__bf16'} } */
+ (float) { glob_bfloat }; /* { dg-error {invalid conversion from type '__bf16'} } */
+ (_Float16) { glob_bfloat }; /* { dg-error {invalid conversion from type '__bf16'} } */
+ (double) { glob_bfloat }; /* { dg-error {invalid conversion from type '__bf16'} } */
+ (short) { glob_bfloat }; /* { dg-error {invalid conversion from type '__bf16'} } */
+
+ /* Arrays and Structs. */
+
+ typedef __bf16 array_type[2];
+ extern __bf16 extern_array[];
+
+ __bf16 array[2];
+ __bf16 zero_length_array[0];
+ __bf16 empty_init_array[] = {};
+ typedef __bf16 some_other_type[is_an_int];
+
+ struct struct1 {
+ __bf16 a;
+ };
+
+ union union1 {
+ __bf16 a;
+ };
+
+ /* Addressing and dereferencing. */
+
+ __bf16 *bfloat_ptr = &scalar0;
+ scalar0 = *bfloat_ptr;
+
+ /* Pointer assignment. */
+
+ __bf16 *bfloat_ptr2 = bfloat_ptr;
+ __bf16 *bfloat_ptr3 = array;
+
+ /* Pointer arithmetic. */
+
+ ++bfloat_ptr;
+ --bfloat_ptr;
+ bfloat_ptr++;
+ bfloat_ptr--;
+ bfloat_ptr += 1;
+ bfloat_ptr -= 1;
+ bfloat_ptr - bfloat_ptr2;
+ bfloat_ptr = &bfloat_ptr3[0];
+ bfloat_ptr = &bfloat_ptr3[1];
+
+ /* Simple comparison. */
+ scalar0 > glob_bfloat; /* { dg-error {operation not permitted on type '__bf16'} } */
+ glob_bfloat == scalar0; /* { dg-error {operation not permitted on type '__bf16'} } */
+ scalar0 > is_a_float; /* { dg-error {operation not permitted on type '__bf16'} } */
+ is_a_float == scalar0; /* { dg-error {operation not permitted on type '__bf16'} } */
+ scalar0 > 0; /* { dg-error {operation not permitted on type '__bf16'} } */
+ 0 == scalar0; /* { dg-error {operation not permitted on type '__bf16'} } */
+ scalar0 > 0.1; /* { dg-error {operation not permitted on type '__bf16'} } */
+ 0.1 == scalar0; /* { dg-error {operation not permitted on type '__bf16'} } */
+ scalar0 > is_an_int; /* { dg-error {operation not permitted on type '__bf16'} } */
+ is_an_int == scalar0; /* { dg-error {operation not permitted on type '__bf16'} } */
+
+ /* Pointer comparison. */
+
+ bfloat_ptr == &scalar0;
+ bfloat_ptr != &scalar0;
+ bfloat_ptr < &scalar0;
+ bfloat_ptr <= &scalar0;
+ bfloat_ptr > &scalar0;
+ bfloat_ptr >= &scalar0;
+ bfloat_ptr == bfloat_ptr2;
+ bfloat_ptr != bfloat_ptr2;
+ bfloat_ptr < bfloat_ptr2;
+ bfloat_ptr <= bfloat_ptr2;
+ bfloat_ptr > bfloat_ptr2;
+ bfloat_ptr >= bfloat_ptr2;
+
+ /* Conditional expressions. */
+
+ 0 ? scalar0 : scalar0;
+ 0 ? scalar0 : is_a_float; /* { dg-error {invalid conversion from type '__bf16'} } */
+ 0 ? is_a_float : scalar0; /* { dg-error {invalid conversion from type '__bf16'} } */
+ 0 ? scalar0 : 0; /* { dg-error {invalid conversion to type '__bf16'} } */
+ 0 ? 0 : scalar0; /* { dg-error {invalid conversion to type '__bf16'} } */
+ 0 ? 0.1 : scalar0; /* { dg-error {invalid conversion from type '__bf16'} } */
+ 0 ? scalar0 : 0.1; /* { dg-error {invalid conversion from type '__bf16'} } */
+ 0 ? bfloat_ptr : bfloat_ptr2;
+ 0 ? bfloat_ptr : float_ptr; /* { dg-warning {pointer type mismatch in conditional expression} } */
+ 0 ? float_ptr : bfloat_ptr; /* { dg-warning {pointer type mismatch in conditional expression} } */
+
+ scalar0 ? scalar0 : scalar0; /* { dg-error {operation not permitted on type '__bf16'} } */
+ scalar0 ? is_a_float : scalar0; /* { dg-error {operation not permitted on type '__bf16'} } */
+ scalar0 ? scalar0 : is_a_float; /* { dg-error {operation not permitted on type '__bf16'} } */
+ scalar0 ? is_a_float : is_a_float; /* { dg-error {operation not permitted on type '__bf16'} } */
+
+ /* Unary operators. */
+
+ +scalar0; /* { dg-error {operation not permitted on type '__bf16'} } */
+ -scalar0; /* { dg-error {operation not permitted on type '__bf16'} } */
+ ~scalar0; /* { dg-error {operation not permitted on type '__bf16'} } */
+ !scalar0; /* { dg-error {operation not permitted on type '__bf16'} } */
+ *scalar0; /* { dg-error {invalid type argument of unary '\*'} } */
+ __real scalar0; /* { dg-error {operation not permitted on type '__bf16'} } */
+ __imag scalar0; /* { dg-error {operation not permitted on type '__bf16'} } */
+ ++scalar0; /* { dg-error {operation not permitted on type '__bf16'} } */
+ --scalar0; /* { dg-error {operation not permitted on type '__bf16'} } */
+ scalar0++; /* { dg-error {operation not permitted on type '__bf16'} } */
+ scalar0--; /* { dg-error {operation not permitted on type '__bf16'} } */
+
+ /* Binary arithmetic operations. */
+
+ scalar0 = glob_bfloat + *bfloat_ptr; /* { dg-error {operation not permitted on type '__bf16'} } */
+ scalar0 = glob_bfloat + 0.1; /* { dg-error {operation not permitted on type '__bf16'} } */
+ scalar0 = glob_bfloat + 0; /* { dg-error {operation not permitted on type '__bf16'} } */
+ scalar0 = glob_bfloat + is_a_float; /* { dg-error {operation not permitted on type '__bf16'} } */
+
+ return scalar0;
+}
+
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