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Robin Morisset df20586a7a [X86] Allow atomic operations using immediates to avoid using a register 
The only valid lowering of atomic stores in the X86 backend was mov from
register to memory. As a result, storing an immediate required a useless copy
of the immediate in a register. Now these can be compiled as a simple mov.

Similarily, adding/and-ing/or-ing/xor-ing an
immediate to an atomic location (but through an atomic_store/atomic_load,
not a fetch_whatever intrinsic) can now make use of an 'add $imm, x(%rip)'
instead of using a register. And the same applies to inc/dec.

This second point matches the first issue identified in
  http://llvm.org/bugs/show_bug.cgi?id=17281

llvm-svn: 216980
 		2014-09-02 22:16:29 +00:00
..
Analysis Add a CFL Alias Analysis implementation 2014-09-02 21:43:13 +00:00
Assembler Declare that musttail calls in variadic functions forward the ellipsis 2014-08-26 00:33:28 +00:00
Bindings [OCaml] Add Llvm.{string_of_const,const_element}. 2014-08-03 23:54:22 +00:00
Bitcode Teach llvm-bcanalyzer to use one stream's BLOCKINFO to read another stream. 2014-08-30 17:07:55 +00:00
BugPoint llvm/test/BugPoint/compile-custom.ll: Use explicit %python to invoke a test script, compile-custom.ll.py, for shebang-incapable hosts. 2014-07-11 14:44:10 +00:00
CodeGen [X86] Allow atomic operations using immediates to avoid using a register 2014-09-02 22:16:29 +00:00
DebugInfo DebugInfo: Elide lexical scopes which only contain other (inline or lexical) scopes. 2014-08-31 21:26:22 +00:00
ExecutionEngine [PATCH][Interpreter] Add missing FP intrinsic lowering. 2014-08-30 18:33:35 +00:00
Feature Use "weak alias" instead of "alias weak" 2014-07-30 22:51:54 +00:00
FileCheck FileCheck: Add a flag to allow checking empty input 2014-08-07 18:40:37 +00:00
Instrumentation [asan] Assign a low branch weight to ASan's slow path, patch by Jonas Wagner. This speeds up asan (at least on SPEC) by 1%-5% or more. Also fix lint in dfsan. 2014-09-02 21:46:51 +00:00
Integer
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JitListener
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LTO Change the default input for llvm-nm to be a.out instead of standard input 2014-06-23 20:27:53 +00:00
Linker Debug info: Add a new explicit DIDescriptor flag for the "public" access 2014-08-29 22:44:07 +00:00
MC Thumb2 M-class MSR instruction support changes 2014-09-01 11:25:07 +00:00
Object llvm-objdump: don't print relocations in non-relocatable files. 2014-08-17 19:09:37 +00:00
Other Teach llvm-bcanalyzer to use one stream's BLOCKINFO to read another stream. 2014-08-30 17:07:55 +00:00
TableGen Tablegen fixes for new syntax when initializing bits from variables. 2014-08-29 19:41:04 +00:00
Transforms Generate extract for in-tree uses if the use is scalar operand in vectorized instruction. radar://18144665 2014-09-02 21:00:39 +00:00
Unit Let test/Unit/lit.cfg add config.shlibdir to $PATH on DLL platforms like cygming. 2014-07-04 05:11:55 +00:00
Verifier Verifier: Don't reject varargs callee cleanup functions 2014-08-29 21:25:28 +00:00
YAMLParser
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tools Object/llvm-objdump: allow dumping of mach-o exports trie 2014-08-30 00:20:14 +00:00
.clang-format
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CMakeLists.txt Rename llvm-uselistorder => verify-uselistorder 2014-07-30 17:11:27 +00:00
Makefile Delete support for AuroraUX. 2014-08-14 15:15:09 +00:00
Makefile.tests
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TestRunner.sh
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lit.cfg Introduce -DLLVM_USE_SANITIZER=Undefined CMake option to build UBSan-ified version of LLVM/Clang. 2014-08-29 00:50:36 +00:00
lit.site.cfg.in Add missing Interpreter intrinsic lowering for sin, cos and ceil 2014-08-08 15:00:12 +00:00