Windows does not have the ".const" directive and the function type must be declared differently.

Author: vadimcn

lib/builtins/assembly.h

@@ -27,12 +27,16 @@
 #define LOCAL_LABEL(name) L_##name
 #define FILE_LEVEL_DIRECTIVE  .subsections_via_symbols
 #define SYMBOL_IS_FUNC(name)
+#define CONST_SECTION .const
 #else
 #define HIDDEN_DIRECTIVE .hidden
 #define LOCAL_LABEL(name) .L_##name
 #define FILE_LEVEL_DIRECTIVE
+#define CONST_SECTION .text
 #  if defined(__arm__)
 #  define SYMBOL_IS_FUNC(name) .type name, %function
+#  elif __WIN32__
+#  define SYMBOL_IS_FUNC(name) .def name; .scl 3; .type 32; .endef
 #  else
 #  define SYMBOL_IS_FUNC(name) .type name, @function
 #  endif

lib/builtins/i386/floatdidf.S

@@ -7,9 +7,7 @@
 
 #ifdef __i386__
 
-#ifndef __ELF__
-.const
-#endif
+CONST_SECTION
 .align 4
 twop52: .quad 0x4330000000000000
 twop32: .quad 0x41f0000000000000

lib/builtins/i386/floatundidf.S

@@ -17,9 +17,7 @@
 
 #ifdef __i386__
 
-#ifndef __ELF__
-.const
-#endif
+CONST_SECTION
 .align 4
 twop52: .quad 0x4330000000000000
 twop84_plus_twop52:

lib/builtins/i386/floatundisf.S

@@ -18,7 +18,7 @@
 
 #ifdef __i386__
 
-.const
+CONST_SECTION
 .align 3
 
 		.quad	0x43f0000000000000
@@ -52,8 +52,8 @@ END_COMPILERRT_FUNCTION(__floatundisf)
 
 #ifdef __i386__
 
-#ifndef __ELF__
-.const
+CONST_SECTION
+#if !defined(__ELF__) && !defined(__WIN32__)
 .align 3
 #else
 .align 8
@@ -74,7 +74,7 @@ DEFINE_COMPILERRT_FUNCTION(__floatundisf)
 	movd		8(%esp),		%xmm1
 	movd		4(%esp),		%xmm0
 	punpckldq	%xmm1,			%xmm0
-	
+
 	calll		0f
 0:	popl		%ecx
 	shrl		%eax					// high 31 bits of input as sint32

lib/builtins/i386/floatundixf.S

@@ -7,9 +7,7 @@
 
 #ifdef __i386__
 
-#ifndef __ELF__
-.const
-#endif
+CONST_SECTION
 .align 4
 twop52: .quad 0x4330000000000000
 twop84_plus_twop52_neg:

lib/builtins/x86_64/floatundidf.S

@@ -17,9 +17,7 @@
 
 #ifdef __x86_64__
 
-#ifndef __ELF__
-.const
-#endif
+CONST_SECTION
 .align 4
 twop52: .quad 0x4330000000000000
 twop84_plus_twop52:

lib/builtins/x86_64/floatundixf.S

@@ -7,9 +7,7 @@
 
 #ifdef __x86_64__
 
-#ifndef __ELF__
-.const
-#endif
+CONST_SECTION
 .align 4
 twop64: .quad 0x43f0000000000000
 
@@ -35,7 +33,7 @@ END_COMPILERRT_FUNCTION(__floatundixf)
 
 #ifdef __x86_64__
 
-.const
+CONST_SECTION
 .align 4
 twop52: .quad 0x4330000000000000
 twop84_plus_twop52_neg: