llvm-project/compiler-rt/lib/builtins/x86_64/floatundisf.S

// This file is dual licensed under the MIT and the University of Illinois Open
// Source Licenses. See LICENSE.TXT for details.

#include "../assembly.h"

// float __floatundisf(du_int a);

#ifdef __x86_64__

CONST_SECTION

	.balign 16
two:
	.single 2.0

#define REL_ADDR(_a)	(_a)(%rip)

.text
.balign 4
DEFINE_COMPILERRT_FUNCTION(__floatundisf)
	movq		$1,			%rsi
	testq		%rdi,		%rdi
	js			1f
	cvtsi2ssq	%rdi,		%xmm0
	ret
	
1:	andq		%rdi,		%rsi
	shrq		%rdi
	orq			%rsi,		%rdi
	cvtsi2ssq	%rdi,		%xmm0
	mulss	REL_ADDR(two),	%xmm0
	ret
END_COMPILERRT_FUNCTION(__floatundisf)

#endif // __x86_64__
license change llvm-svn: 119397 2010-11-17 06:13:33 +08:00			`// This file is dual licensed under the MIT and the University of Illinois Open`
			`// Source Licenses. See LICENSE.TXT for details.`
Initial import of compiler-rt. - llvm-svn: 74292 2009-06-27 00:47:03 +08:00
Add assembly.h for use in .S files. llvm-svn: 85263 2009-10-28 01:49:50 +08:00			`#include "../assembly.h"`

Initial import of compiler-rt. - llvm-svn: 74292 2009-06-27 00:47:03 +08:00			`// float __floatundisf(du_int a);`

			`#ifdef __x86_64__`

builtins: cleanup constant data section selection Each of the object formats use a different directive for selecting the constant section. Use a macro to avoid the duplication across a number of files. Also correct a small macro mismatch on the Windows case (HIDDEN_DIRECTIVE -> HIDDEN). Patch by Vadim Chugunov! llvm-svn: 223910 2014-12-10 10:36:22 +08:00			`CONST_SECTION`
builtins: add missed files from previous commits This adds missed files in SVN r214033 for alignment and corrects a change from SVN r214034 for fixing compilation with GCC. llvm-svn: 214039 2014-07-27 07:44:18 +08:00
			`.balign 16`
compiler-rt: whitespace and uniformity for arm Make the whitespace a bit more uniform in the various assembly routines. This also makes the assembly files a bit more uniform on the ARM side by explicitly stating that it is using the unified syntax and that the contents of the code is in the text section (or segment). No functional change. llvm-svn: 209985 2014-06-01 12:07:03 +08:00			`two:`
			`.single 2.0`
Initial import of compiler-rt. - llvm-svn: 74292 2009-06-27 00:47:03 +08:00
			`#define REL_ADDR(_a) (_a)(%rip)`

			`.text`
[CompilerRT] use .p2align, .balign instead of .align The .align statements in ARM assembly routines is actually meant to be a power of 2 alignment (e.g. .align 2 == 4 byte alignment, not 2). Switch to using .p2align. .p2align is guaranteed to be a power-of-two alignment always and much more explicit. The .align in the case of x86_64 is byte alignment, use .balign instead of .align. llvm-svn: 208578 2014-05-12 23:23:37 +08:00			`.balign 4`
Switch to using DEFINE_COMPILERRT_[PRIVATE_]FUNCTION to define function symbols inside .S files. llvm-svn: 85264 2009-10-28 01:50:21 +08:00			`DEFINE_COMPILERRT_FUNCTION(__floatundisf)`
Initial import of compiler-rt. - llvm-svn: 74292 2009-06-27 00:47:03 +08:00			`movq $1, %rsi`
			`testq %rdi, %rdi`
			`js 1f`
			`cvtsi2ssq %rdi, %xmm0`
			`ret`

			`1: andq %rdi, %rsi`
			`shrq %rdi`
			`orq %rsi, %rdi`
			`cvtsi2ssq %rdi, %xmm0`
			`mulss REL_ADDR(two), %xmm0`
			`ret`
Add end-of-function markers. llvm-svn: 200007 2014-01-24 22:42:55 +08:00			`END_COMPILERRT_FUNCTION(__floatundisf)`

Fix x86/x64 on Linux, Credit to Rafael Espindola. llvm-svn: 86075 2009-11-05 07:52:51 +08:00			`#endif // __x86_64__`