Akira Hatanaka ca4f080a72 [ObjCARC] Do not turn a call to @objc_autoreleaseReturnValue into a call ... to @objc_autorelease if its operand is a PHI and the PHI has an equivalent value that is used by a return instruction. For example, ARC optimizer shouldn't replace the call in the following example, as doing so breaks the AutoreleaseRV/RetainRV optimization: %v1 = bitcast i32* %v0 to i8* br label %bb3 bb2: %v3 = bitcast i32* %v2 to i8* br label %bb3 bb3: %p = phi i8* [ %v1, %bb1 ], [ %v3, %bb2 ] %retval = phi i32* [ %v0, %bb1 ], [ %v2, %bb2 ] ; equivalent to %p %v4 = tail call i8* @objc_autoreleaseReturnValue(i8* %p) ret i32* %retval Also, make sure ObjCARCContract replaces @objc_autoreleaseReturnValue's operand uses with its value so that the call gets tail-called. rdar://problem/15894705 llvm-svn: 323009		2018-01-19 23:51:13 +00:00
..
Analysis	[InstSimplify] use m_Specific and commutative matcher to reduce code; NFCI	2018-01-19 16:12:55 +00:00
AsmParser	Allow dso_local on ifunc.	2018-01-12 17:03:43 +00:00
BinaryFormat
Bitcode	[NFC] fix trivial typos in comments	2018-01-17 12:29:38 +00:00
CodeGen	Add optional DICompileUnit to DIBuilder + make outliner debug info use it	2018-01-19 21:21:49 +00:00
DebugInfo	[DWARFv5] Number the line-table's directory array correctly.	2018-01-18 20:33:35 +00:00
Demangle
ExecutionEngine	Fix -Wunused-variable.	2018-01-19 22:56:04 +00:00
Fuzzer
FuzzMutate
IR	Add optional DICompileUnit to DIBuilder + make outliner debug info use it	2018-01-19 21:21:49 +00:00
IRReader
LineEditor
Linker	Fix crash when linking metadata with ODR type uniquing	2018-01-09 18:32:53 +00:00
LTO	Don't drop dso_local in LTO.	2018-01-18 05:38:43 +00:00
MC	[WebAssembly] MC: Start table at offset 1 rather than 0	2018-01-19 18:57:01 +00:00
Object	[WebAssembly] Remove debug names from symbol table	2018-01-17 19:28:43 +00:00
ObjectYAML	[WebAssembly] Add COMDAT support	2018-01-09 23:43:14 +00:00
Option	[Option] For typo '-foo', suggest '--foo'	2018-01-09 19:38:04 +00:00
Passes	Add a pass to generate synthetic function entry counts.	2018-01-09 19:39:35 +00:00
ProfileData	Remove superfluous copies in sample profiling.	2017-12-28 18:10:41 +00:00
Support	Fallback option for colorized output when terminfo isn't available	2018-01-19 17:10:55 +00:00
TableGen	Avoid int to string conversion in Twine or raw_ostream contexts.	2017-12-28 16:58:54 +00:00
Target	[SystemZ] Prefer LOCHI over generating IPM sequences	2018-01-19 20:56:04 +00:00
Testing
ToolDrivers
Transforms	[ObjCARC] Do not turn a call to @objc_autoreleaseReturnValue into a call	2018-01-19 23:51:13 +00:00
WindowsManifest
XRay
CMakeLists.txt
LLVMBuild.txt