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path: root/lib/Support/Twine.cpp
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2011-07-24Add Twine support for characters, and switch twine to use a union internallyChris Lattner
to eliminate some casting. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@135888 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-15In Twine::str(), if the Twine stores only a std::string, just return a ↵Frits van Bommel
direct copy of that instead of first copying to a SmallString and converting that to a std::string. Also fix some indentation. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@135267 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-03Support/ADT/Twine: Make toNullTerminatedStringRef not rely on UB :(.Michael J. Spencer
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120791 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-01Support/ADT/Twine: Add toNullTerminatedStringRef.Michael J. Spencer
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120600 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-26Fix Whitespace.Michael J. Spencer
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120166 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-05Implement rdar://7415680 - Twine integer support lacks greatnessChris Lattner
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
2010-01-13Introduce Twine::toStringRef, a variant of toVector which avoids the copy if theBenjamin Kramer
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
2010-01-05Change errs() to dbgs().David Greene
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92640 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-19Switch Twine::str() to use toVector(), which is now efficient.Daniel Dunbar
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79437 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-02Add missing flush().Daniel Dunbar
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77859 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-30Twine: Directly support int, long, and long long types.Daniel Dunbar
- This should resolve Cygwin gcc ambiguities. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77624 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-30Twine: Use raw_ostream::write_hex, remove unused itohexstr method.Daniel Dunbar
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77617 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-30Twine: Provide [u]int{32,64} conversions via implicit constructors instead ofDaniel Dunbar
explicitly. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77576 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-29Twines: Support numeric conversion directly (uitostr, etc).Daniel Dunbar
- 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
2009-07-24Add Twine ADT.Daniel Dunbar
- Not currently used. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76956 91177308-0d34-0410-b5e6-96231b3b80d8
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