https://gcc.gnu.org/g:af9118f721e8d586049ff4a60ff7bc5507478344
commit af9118f721e8d586049ff4a60ff7bc5507478344
Author: Xiao Zeng <zengx...@eswincomputing.com>
Date: Fri May 17 13:48:21 2024 +0800
RISC-V: Modify _Bfloat16 to __bf16
According to the description in:
<https://github.com/riscv-non-isa/riscv-elf-psabi-doc/pull/367>,
the type representation symbol of BF16 has been corrected.
Kito Cheng pointed out relevant information in the email:
<https://gcc.gnu.org/pipermail/gcc-patches/2024-May/651850.html>
gcc/ChangeLog:
* config/riscv/riscv-builtins.cc (riscv_init_builtin_types):
Modify _Bfloat16 to __bf16.
* config/riscv/riscv.cc (riscv_mangle_type): Ditto.
gcc/testsuite/ChangeLog:
* gcc.target/riscv/_Bfloat16-nanboxing.c: Move to...
* gcc.target/riscv/__bf16-nanboxing.c: ...here.
* gcc.target/riscv/bf16_arithmetic.c: Modify _Bfloat16 to __bf16.
* gcc.target/riscv/bf16_call.c: Ditto.
* gcc.target/riscv/bf16_comparison.c: Ditto.
* gcc.target/riscv/bf16_float_libcall_convert.c: Ditto.
* gcc.target/riscv/bf16_integer_libcall_convert.c: Ditto.
(cherry picked from commit 6da1d6efde2282e6582c00d1631e7457975ad998)
Diff:
---
gcc/config/riscv/riscv-builtins.cc | 6 +++---
gcc/config/riscv/riscv.cc | 2 +-
.../riscv/{_Bfloat16-nanboxing.c => __bf16-nanboxing.c} | 12 ++++++------
gcc/testsuite/gcc.target/riscv/bf16_arithmetic.c | 6 +++---
gcc/testsuite/gcc.target/riscv/bf16_call.c | 4 ++--
gcc/testsuite/gcc.target/riscv/bf16_comparison.c | 6 +++---
gcc/testsuite/gcc.target/riscv/bf16_float_libcall_convert.c | 2 +-
.../gcc.target/riscv/bf16_integer_libcall_convert.c | 2 +-
8 files changed, 20 insertions(+), 20 deletions(-)
diff --git a/gcc/config/riscv/riscv-builtins.cc
b/gcc/config/riscv/riscv-builtins.cc
index 4c08834288ac..dc54e1a59b52 100644
--- a/gcc/config/riscv/riscv-builtins.cc
+++ b/gcc/config/riscv/riscv-builtins.cc
@@ -275,7 +275,7 @@ riscv_init_builtin_types (void)
lang_hooks.types.register_builtin_type (riscv_float16_type_node,
"_Float16");
- /* Provide the _Bfloat16 type and bfloat16_type_node if needed. */
+ /* Provide the __bf16 type and bfloat16_type_node if needed. */
if (!bfloat16_type_node)
{
riscv_bfloat16_type_node = make_node (REAL_TYPE);
@@ -286,9 +286,9 @@ riscv_init_builtin_types (void)
else
riscv_bfloat16_type_node = bfloat16_type_node;
- if (!maybe_get_identifier ("_Bfloat16"))
+ if (!maybe_get_identifier ("__bf16"))
lang_hooks.types.register_builtin_type (riscv_bfloat16_type_node,
- "_Bfloat16");
+ "__bf16");
}
/* Implement TARGET_INIT_BUILTINS. */
diff --git a/gcc/config/riscv/riscv.cc b/gcc/config/riscv/riscv.cc
index 9ac2be87acd2..2be04ec6bc5e 100644
--- a/gcc/config/riscv/riscv.cc
+++ b/gcc/config/riscv/riscv.cc
@@ -10276,7 +10276,7 @@ riscv_asan_shadow_offset (void)
static const char *
riscv_mangle_type (const_tree type)
{
- /* Half-precision float, _Float16 is "DF16_" and _Bfloat16 is "DF16b". */
+ /* Half-precision float, _Float16 is "DF16_" and __bf16 is "DF16b". */
if (SCALAR_FLOAT_TYPE_P (type) && TYPE_PRECISION (type) == 16)
{
if (TYPE_MODE (type) == HFmode)
diff --git a/gcc/testsuite/gcc.target/riscv/_Bfloat16-nanboxing.c
b/gcc/testsuite/gcc.target/riscv/__bf16-nanboxing.c
similarity index 83%
rename from gcc/testsuite/gcc.target/riscv/_Bfloat16-nanboxing.c
rename to gcc/testsuite/gcc.target/riscv/__bf16-nanboxing.c
index 11a73d222345..a9a586c98b9c 100644
--- a/gcc/testsuite/gcc.target/riscv/_Bfloat16-nanboxing.c
+++ b/gcc/testsuite/gcc.target/riscv/__bf16-nanboxing.c
@@ -1,14 +1,14 @@
/* { dg-do compile } */
/* { dg-options "-march=rv64ifd -mabi=lp64d -mcmodel=medlow -O" } */
-_Bfloat16 gvar = 9.87654;
+__bf16 gvar = 9.87654;
union U
{
unsigned short i16;
- _Bfloat16 f16;
+ __bf16 f16;
};
-_Bfloat16
+__bf16
test1 (unsigned short input)
{
union U tmp;
@@ -16,19 +16,19 @@ test1 (unsigned short input)
return tmp.f16;
}
-_Bfloat16
+__bf16
test2 ()
{
return 1.234f;
}
-_Bfloat16
+__bf16
test3 ()
{
return gvar;
}
-_Bfloat16
+__bf16
test ()
{
return 0.0f;
diff --git a/gcc/testsuite/gcc.target/riscv/bf16_arithmetic.c
b/gcc/testsuite/gcc.target/riscv/bf16_arithmetic.c
index 9e4850512600..190cc1d574a6 100644
--- a/gcc/testsuite/gcc.target/riscv/bf16_arithmetic.c
+++ b/gcc/testsuite/gcc.target/riscv/bf16_arithmetic.c
@@ -5,9 +5,9 @@
/* 1) bf -> sf (call __extendbfsf2) */
/* 2) sf1 [+|-|*|/] sf2 (call __[add|sub|mul|div]sf3) */
/* 3) sf -> bf (call __truncsfbf2) */
-extern _Bfloat16 bf;
-extern _Bfloat16 bf1;
-extern _Bfloat16 bf2;
+extern __bf16 bf;
+extern __bf16 bf1;
+extern __bf16 bf2;
void bf_add_bf () { bf = bf1 + bf2; }
diff --git a/gcc/testsuite/gcc.target/riscv/bf16_call.c
b/gcc/testsuite/gcc.target/riscv/bf16_call.c
index 29f677199997..6ace14943703 100644
--- a/gcc/testsuite/gcc.target/riscv/bf16_call.c
+++ b/gcc/testsuite/gcc.target/riscv/bf16_call.c
@@ -4,9 +4,9 @@
/* 1) bf -> sf (call __extendbfsf2) */
/* 2) sf -> bf (call __truncsfbf2) */
-__attribute__ ((noinline)) _Bfloat16 add (_Bfloat16 a, _Bfloat16 b) { return a
+ b; }
+__attribute__ ((noinline)) __bf16 add (__bf16 a, __bf16 b) { return a + b; }
-_Bfloat16 test(_Bfloat16 a, _Bfloat16 b) { return add (a, b); }
+__bf16 test(__bf16 a, __bf16 b) { return add (a, b); }
/* { dg-final { scan-assembler-times "call\t__extendbfsf2" 2 } } */
/* { dg-final { scan-assembler-times "call\t__truncsfbf2" 1 } } */
diff --git a/gcc/testsuite/gcc.target/riscv/bf16_comparison.c
b/gcc/testsuite/gcc.target/riscv/bf16_comparison.c
index 69db803f403e..2c13b8a0c9a7 100644
--- a/gcc/testsuite/gcc.target/riscv/bf16_comparison.c
+++ b/gcc/testsuite/gcc.target/riscv/bf16_comparison.c
@@ -4,9 +4,9 @@
/* 1) bf -> sf (call __extendbfsf2) */
/* 2) sf1 [<|<=|>|>=|==] sf2 (call __[lt|le|gt|ge|eq]sf2) */
-extern _Bfloat16 bf;
-extern _Bfloat16 bf1;
-extern _Bfloat16 bf2;
+extern __bf16 bf;
+extern __bf16 bf1;
+extern __bf16 bf2;
void bf_lt_bf () { bf = (bf1 < bf2) ? bf1 : bf2; }
diff --git a/gcc/testsuite/gcc.target/riscv/bf16_float_libcall_convert.c
b/gcc/testsuite/gcc.target/riscv/bf16_float_libcall_convert.c
index ba6c6460bc2c..423a071d1a54 100644
--- a/gcc/testsuite/gcc.target/riscv/bf16_float_libcall_convert.c
+++ b/gcc/testsuite/gcc.target/riscv/bf16_float_libcall_convert.c
@@ -14,7 +14,7 @@
* bf -> tf == bf -> sf -> tf (call __extendbfsf2 &&
__extendsftf2)
*/
-extern _Bfloat16 bf;
+extern __bf16 bf;
extern _Float16 hf;
extern float sf;
extern double df;
diff --git a/gcc/testsuite/gcc.target/riscv/bf16_integer_libcall_convert.c
b/gcc/testsuite/gcc.target/riscv/bf16_integer_libcall_convert.c
index ad714253a4a5..2c37302e2947 100644
--- a/gcc/testsuite/gcc.target/riscv/bf16_integer_libcall_convert.c
+++ b/gcc/testsuite/gcc.target/riscv/bf16_integer_libcall_convert.c
@@ -16,7 +16,7 @@
* bf -> udi/uti (call __fixunssf[d|t]i)
*/
-extern _Bfloat16 bf;
+extern __bf16 bf;
extern signed char qi;
extern unsigned char uqi;
