Commit Graph

21 Commits

Author SHA1 Message Date
Eli Bendersky
8bb3b098b9 Fix typo
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@179793 91177308-0d34-0410-b5e6-96231b3b80d8
2013-04-18 20:49:17 +00:00
Dmitri Gribenko
2d9eb72178 Fix Doxygen issues:
* wrap code blocks in \code ... \endcode;
* refer to parameter names in paragraphs correctly (\arg is not what most
  people want -- it starts a new paragraph).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@163790 91177308-0d34-0410-b5e6-96231b3b80d8
2012-09-13 12:34:29 +00:00
Craig Topper
50bee42b54 Convert assert(0) to llvm_unreachable
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@149849 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-05 22:14:15 +00:00
Chris Lattner
3f25ee080c Add Twine support for characters, and switch twine to use a union internally
to eliminate some casting.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@135888 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-24 20:44:30 +00:00
Michael J. Spencer
7dc7ac3cb2 Support/ADT/Twine: Add toNullTerminatedStringRef.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120600 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-01 20:37:30 +00:00
Michael J. Spencer
1f6efa3996 Merge System into Support.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120298 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-29 18:16:10 +00:00
Michael J. Spencer
326990f1eb Fix Whitespace.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120166 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-26 04:16:08 +00:00
Chris Lattner
ea03e10fac Implement rdar://7415680 - Twine integer support lacks greatness
Microoptimize Twine's with unsigned and int to not pin their value to
the stack.  This saves stack space in common cases and allows mem2reg
in the caller.  A simple example is:

void foo(const Twine &);
void bar(int x) {
  foo("xyz: " + Twine(x));
}

Before:

__Z3bari:
	subq	$40, %rsp
	movl	%edi, 36(%rsp)
	leaq	L_.str3(%rip), %rax
	leaq	36(%rsp), %rcx
	leaq	8(%rsp), %rdi
	movq	%rax, 8(%rsp)
	movq	%rcx, 16(%rsp)
	movb	$3, 24(%rsp)
	movb	$7, 25(%rsp)
	callq	__Z3fooRKN4llvm5TwineE
	addq	$40, %rsp
	ret

After:

__Z3bari:
	subq	$24, %rsp
	leaq	L_.str3(%rip), %rax
	movq	%rax, (%rsp)
	movslq	%edi, %rax
	movq	%rax, 8(%rsp)
	movb	$3, 16(%rsp)
	movb	$7, 17(%rsp)
	leaq	(%rsp), %rdi
	callq	__Z3fooRKN4llvm5TwineE
	addq	$24, %rsp
	ret

It saves 16 bytes of stack and one instruction in this case.




git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103107 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-05 18:40:33 +00:00
Benjamin Kramer
b357e06f67 Introduce Twine::toStringRef, a variant of toVector which avoids the copy if the
twine can be represented as a single StringRef. Use the new methode to simplify
some twine users.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93317 91177308-0d34-0410-b5e6-96231b3b80d8
2010-01-13 12:45:23 +00:00
Chris Lattner
bf86e5df18 add new isSingleStringRef()/getSingleStringRef() methods to twine,
and use them to avoid a copy of a string in getNameWithPrefix in
the common case.  It seems like Value::setName and other places 
should use this as well?


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93301 91177308-0d34-0410-b5e6-96231b3b80d8
2010-01-13 07:12:06 +00:00
Daniel Dunbar
b80077aae9 Twine: Stores kinds as uchar instead of bitfield to be friendlier to the
optimizer.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89278 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-19 00:04:43 +00:00
Chandler Carruth
8b67f774e9 Move DataTypes.h to include/llvm/System, update all users. This breaks the last
direct inclusion edge from System to Support.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85086 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-26 01:35:46 +00:00
Daniel Dunbar
5149932068 Add a fast path for setName("") on an unnamed value.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79492 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-19 23:37:23 +00:00
Daniel Dunbar
2d8bc0fe70 Twine: Directly support int, long, and long long types.
- This should resolve Cygwin gcc ambiguities.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77624 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-30 21:15:14 +00:00
Daniel Dunbar
0fffbafa96 Twine: Use raw_ostream::write_hex, remove unused itohexstr method.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77617 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-30 18:30:19 +00:00
Daniel Dunbar
fe09b2098a Twines: Don't allow implicit conversion from integers, this is too tricky.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77605 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-30 17:37:43 +00:00
Daniel Dunbar
0165a2ca89 Twine: Provide [u]int{32,64} conversions via implicit constructors instead of
explicitly.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77576 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-30 03:47:15 +00:00
Benjamin Kramer
37e3fe9ad7 MSVC build fix. Patch by Olaf Krzikalla!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77450 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-29 11:21:25 +00:00
Daniel Dunbar
763457e70b Twines: Support numeric conversion directly (uitostr, etc).
- Provides static constructors for doing number to string conversions without
   using temporaries.

 - There are several ways to do this, I think given the Twine constraints this
   is the simplest one.

 - One FIXME for fast number -> hex conversion.

 - Added another comment on one last major bit of perf work Twines need, which
   is to make raw_svector_ostream more efficient.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77445 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-29 07:08:44 +00:00
Daniel Dunbar
050578fb4a Fix constructor types
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76958 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-24 07:12:20 +00:00
Daniel Dunbar
2538f7ab2e Add Twine ADT.
- Not currently used.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76956 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-24 07:04:27 +00:00