[libc-commits] [libc] c80d68a - [libc] Add float.h header. (#78737)
via libc-commits
libc-commits at lists.llvm.org
Fri Jan 19 09:04:38 PST 2024
Author: lntue
Date: 2024-01-19T12:04:34-05:00
New Revision: c80d68a67621b776d7bfbc5447cbbb36f4095e92
URL: https://github.com/llvm/llvm-project/commit/c80d68a67621b776d7bfbc5447cbbb36f4095e92
DIFF: https://github.com/llvm/llvm-project/commit/c80d68a67621b776d7bfbc5447cbbb36f4095e92.diff
LOG: [libc] Add float.h header. (#78737)
Added:
libc/include/float.h.def
libc/include/llvm-libc-macros/float-macros.h
Modified:
libc/config/baremetal/arm/headers.txt
libc/config/baremetal/riscv/headers.txt
libc/config/darwin/arm/headers.txt
libc/config/darwin/x86_64/headers.txt
libc/config/gpu/headers.txt
libc/config/linux/aarch64/headers.txt
libc/config/linux/arm/headers.txt
libc/config/linux/riscv/headers.txt
libc/config/linux/x86_64/headers.txt
libc/include/CMakeLists.txt
libc/include/llvm-libc-macros/CMakeLists.txt
libc/spec/stdc.td
Removed:
################################################################################
diff --git a/libc/config/baremetal/arm/headers.txt b/libc/config/baremetal/arm/headers.txt
index 6ff51f9786772b..38899fabd980c9 100644
--- a/libc/config/baremetal/arm/headers.txt
+++ b/libc/config/baremetal/arm/headers.txt
@@ -2,6 +2,7 @@ set(TARGET_PUBLIC_HEADERS
libc.include.ctype
libc.include.fenv
libc.include.errno
+ libc.include.float
libc.include.inttypes
libc.include.math
libc.include.stdio
diff --git a/libc/config/baremetal/riscv/headers.txt b/libc/config/baremetal/riscv/headers.txt
index 6ff51f9786772b..38899fabd980c9 100644
--- a/libc/config/baremetal/riscv/headers.txt
+++ b/libc/config/baremetal/riscv/headers.txt
@@ -2,6 +2,7 @@ set(TARGET_PUBLIC_HEADERS
libc.include.ctype
libc.include.fenv
libc.include.errno
+ libc.include.float
libc.include.inttypes
libc.include.math
libc.include.stdio
diff --git a/libc/config/darwin/arm/headers.txt b/libc/config/darwin/arm/headers.txt
index 7366c530304d47..2dd54b7c1f5053 100644
--- a/libc/config/darwin/arm/headers.txt
+++ b/libc/config/darwin/arm/headers.txt
@@ -2,6 +2,7 @@ set(TARGET_PUBLIC_HEADERS
libc.include.ctype
libc.include.errno
libc.include.fenv
+ libc.include.float
libc.include.inttypes
libc.include.math
libc.include.stdlib
diff --git a/libc/config/darwin/x86_64/headers.txt b/libc/config/darwin/x86_64/headers.txt
index b33fa45e420802..510d62688a45fa 100644
--- a/libc/config/darwin/x86_64/headers.txt
+++ b/libc/config/darwin/x86_64/headers.txt
@@ -3,6 +3,7 @@ set(TARGET_PUBLIC_HEADERS
libc.include.errno
# Fenv is currently disabled.
#libc.include.fenv
+ libc.include.float
libc.include.inttypes
libc.include.math
libc.include.stdlib
diff --git a/libc/config/gpu/headers.txt b/libc/config/gpu/headers.txt
index dae01310fe9c31..e68e18b87b10e2 100644
--- a/libc/config/gpu/headers.txt
+++ b/libc/config/gpu/headers.txt
@@ -2,6 +2,7 @@ set(TARGET_PUBLIC_HEADERS
libc.include.assert
libc.include.ctype
libc.include.string
+ libc.include.float
libc.include.inttypes
libc.include.math
libc.include.fenv
diff --git a/libc/config/linux/aarch64/headers.txt b/libc/config/linux/aarch64/headers.txt
index cfca5959b5ffa5..6a4a4aaeb0a8d4 100644
--- a/libc/config/linux/aarch64/headers.txt
+++ b/libc/config/linux/aarch64/headers.txt
@@ -4,6 +4,7 @@ set(TARGET_PUBLIC_HEADERS
libc.include.errno
libc.include.features
libc.include.fenv
+ libc.include.float
libc.include.inttypes
libc.include.math
libc.include.pthread
diff --git a/libc/config/linux/arm/headers.txt b/libc/config/linux/arm/headers.txt
index bd08d8f8fa437f..9e6ee51675916e 100644
--- a/libc/config/linux/arm/headers.txt
+++ b/libc/config/linux/arm/headers.txt
@@ -2,6 +2,7 @@ set(TARGET_PUBLIC_HEADERS
libc.include.ctype
libc.include.fenv
libc.include.errno
+ libc.include.float
libc.include.inttypes
libc.include.math
libc.include.stdlib
diff --git a/libc/config/linux/riscv/headers.txt b/libc/config/linux/riscv/headers.txt
index 9c70a3bde74f05..dc1daa48f6c875 100644
--- a/libc/config/linux/riscv/headers.txt
+++ b/libc/config/linux/riscv/headers.txt
@@ -6,6 +6,7 @@ set(TARGET_PUBLIC_HEADERS
libc.include.fcntl
libc.include.features
libc.include.fenv
+ libc.include.float
libc.include.inttypes
libc.include.math
libc.include.pthread
diff --git a/libc/config/linux/x86_64/headers.txt b/libc/config/linux/x86_64/headers.txt
index a85f87b2a3ee98..b0e0219a30e673 100644
--- a/libc/config/linux/x86_64/headers.txt
+++ b/libc/config/linux/x86_64/headers.txt
@@ -6,6 +6,7 @@ set(TARGET_PUBLIC_HEADERS
libc.include.fcntl
libc.include.features
libc.include.fenv
+ libc.include.float
libc.include.inttypes
libc.include.math
libc.include.pthread
diff --git a/libc/include/CMakeLists.txt b/libc/include/CMakeLists.txt
index 9a06f829eee18a..14aa9ec6d73f3e 100644
--- a/libc/include/CMakeLists.txt
+++ b/libc/include/CMakeLists.txt
@@ -75,6 +75,14 @@ add_gen_header(
.llvm-libc-types.imaxdiv_t
)
+add_gen_header(
+ float
+ DEF_FILE float.h.def
+ GEN_HDR float.h
+ DEPENDS
+ .llvm-libc-macros.float_macros
+)
+
add_gen_header(
math
DEF_FILE math.h.def
diff --git a/libc/include/float.h.def b/libc/include/float.h.def
new file mode 100644
index 00000000000000..6d3599d78c69e3
--- /dev/null
+++ b/libc/include/float.h.def
@@ -0,0 +1,14 @@
+//===-- C standard library header float.h ---------------------------------===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef LLVM_LIBC_FLOAT_H
+#define LLVM_LIBC_FLOAT_H
+
+#include <llvm-libc-macros/float-macros.h>
+
+#endif // LLVM_LIBC_FLOAT_H
diff --git a/libc/include/llvm-libc-macros/CMakeLists.txt b/libc/include/llvm-libc-macros/CMakeLists.txt
index 7b2616d4311d94..d965a6a9443ed2 100644
--- a/libc/include/llvm-libc-macros/CMakeLists.txt
+++ b/libc/include/llvm-libc-macros/CMakeLists.txt
@@ -67,6 +67,12 @@ add_macro_header(
file-seek-macros.h
)
+add_macro_header(
+ float_macros
+ HDR
+ float-macros.h
+)
+
add_macro_header(
math_macros
HDR
diff --git a/libc/include/llvm-libc-macros/float-macros.h b/libc/include/llvm-libc-macros/float-macros.h
new file mode 100644
index 00000000000000..1db27f117a46ff
--- /dev/null
+++ b/libc/include/llvm-libc-macros/float-macros.h
@@ -0,0 +1,21 @@
+//===-- Definition of macros from float.h ---------------------------------===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef __LLVM_LIBC_MACROS_FLOAT_MACROS_H
+#define __LLVM_LIBC_MACROS_FLOAT_MACROS_H
+
+#undef FLT_MANT_DIG
+#define FLT_MANT_DIG __FLT_MANT_DIG__
+
+#undef DBL_MANT_DIG
+#define DBL_MANT_DIG __DBL_MANT_DIG__
+
+#undef LDBL_MANT_DIG
+#define LDBL_MANT_DIG __LDBL_MANT_DIG__
+
+#endif // __LLVM_LIBC_MACROS_FLOAT_MACROS_H
diff --git a/libc/spec/stdc.td b/libc/spec/stdc.td
index 714dc21f95ba54..99e9b3ca65ca59 100644
--- a/libc/spec/stdc.td
+++ b/libc/spec/stdc.td
@@ -847,6 +847,15 @@ def StdC : StandardSpec<"stdc"> {
]
>;
+ HeaderSpec Float = HeaderSpec<
+ "float.h",
+ [
+ Macro<"FLT_MANT_DIG">,
+ Macro<"DBL_MANT_DIG">,
+ Macro<"LDBL_MANT_DIG">,
+ ]
+ >;
+
NamedType SigAtomicT = NamedType<"sig_atomic_t">;
HeaderSpec Signal = HeaderSpec<
"signal.h",
@@ -1149,6 +1158,7 @@ def StdC : StandardSpec<"stdc"> {
CType,
Errno,
Fenv,
+ Float,
Math,
String,
StdIO,
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