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Craig Topper 8d46403b8e [X86] Add CMPXCHG8B feature flag. Set it for all CPUs except i386/i486 including 'generic'. Disable use of CMPXCHG8B when this flag isn't set. 
CMPXCHG8B was introduced on i586/pentium generation.

If its not enabled, limit the atomic width to 32 bits so the AtomicExpandPass will expand to lib calls. Unclear if we should be using a different limit for other configs. The default is 1024 and experimentation shows that using an i256 atomic will cause a crash in SelectionDAG.

Differential Revision: https://reviews.llvm.org/D59576

llvm-svn: 356631
 		2019-03-20 23:35:49 +00:00
..
Analysis [ValueTracking] Compute range for abs without nsw 2019-03-20 18:16:02 +00:00
AsmParser [DebugInfo] Introduce DW_OP_LLVM_convert 2019-03-19 13:16:28 +00:00
BinaryFormat [DebugInfo] Introduce DW_OP_LLVM_convert 2019-03-19 13:16:28 +00:00
Bitcode [DebugInfoMetadata] Move main subprogram DIFlag into DISPFlags 2019-03-19 13:49:03 +00:00
CodeGen Allow machine dce to remove uses in the same instruction 2019-03-20 21:42:05 +00:00
DebugInfo [DebugInfo] Introduce DW_OP_LLVM_convert 2019-03-19 13:16:28 +00:00
Demangle Add missing include (cstdlib) to Demangle.h 2019-01-22 19:18:18 +00:00
ExecutionEngine [perf][DebugInfo] follow up for "add SectionedAddress to DebugInfo interfaces" 2019-03-20 10:02:18 +00:00
FuzzMutate [opaque pointer types] Pass value type to LoadInst creation. 2019-02-01 20:44:24 +00:00
Fuzzer
…
IR [DebugInfo] Introduce DW_OP_LLVM_convert 2019-03-19 13:16:28 +00:00
IRReader [IRReader] Expose getLazyIRModule 2019-02-11 22:01:13 +00:00
LTO Reland "[Remarks] Add -foptimization-record-passes to filter remark emission" 2019-03-12 21:22:27 +00:00
LineEditor Update the file headers across all of the LLVM projects in the monorepo 2019-01-19 08:50:56 +00:00
Linker [Linker] Fix crash handling appending linkage 2019-03-20 19:20:07 +00:00
MC [WebAssembly] Target features section 2019-03-20 20:26:45 +00:00
MCA [MCA] Highlight kernel bottlenecks in the summary view. 2019-03-04 11:52:34 +00:00
Object Fix Mach-O bind and rebase validation errors in libObject 2019-03-20 23:21:16 +00:00
ObjectYAML [WebAssembly] Target features section 2019-03-20 20:26:45 +00:00
Option Update the file headers across all of the LLVM projects in the monorepo 2019-01-19 08:50:56 +00:00
Passes Resubmit r356511 "[TailCallElim] Add tailcall elimination pass to LTO pipelines" 2019-03-20 19:08:18 +00:00
ProfileData [SampleFDO] add suffix elision control for fcn names 2019-03-14 13:56:49 +00:00
Remarks [Remarks] Fix mismatched delete due to missing virtual destructor 2019-03-20 17:44:24 +00:00
Support [X86] Add CMPXCHG8B feature flag. Set it for all CPUs except i386/i486 including 'generic'. Disable use of CMPXCHG8B when this flag isn't set. 2019-03-20 23:35:49 +00:00
TableGen [TableGen] Allow 2^63-1 and 2^63-2 as int literals. 2019-03-12 09:28:19 +00:00
Target [X86] Add CMPXCHG8B feature flag. Set it for all CPUs except i386/i486 including 'generic'. Disable use of CMPXCHG8B when this flag isn't set. 2019-03-20 23:35:49 +00:00
Testing Update the file headers across all of the LLVM projects in the monorepo 2019-01-19 08:50:56 +00:00
TextAPI Update the file headers across all of the LLVM projects in the monorepo 2019-01-19 08:50:56 +00:00
ToolDrivers [llvm-ar][libObject] Fix relative paths when nesting thin archives. 2019-02-13 23:39:41 +00:00
Transforms [NFC] Fix brace indentation. 2019-03-20 19:18:55 +00:00
WindowsManifest Update the file headers across all of the LLVM projects in the monorepo 2019-01-19 08:50:56 +00:00
XRay Update the file headers across all of the LLVM projects in the monorepo 2019-01-19 08:50:56 +00:00
CMakeLists.txt [OptRemarks] Make OptRemarks more generic: rename OptRemarks to Remarks 2019-03-05 20:45:17 +00:00
LLVMBuild.txt [OptRemarks] Make OptRemarks more generic: rename OptRemarks to Remarks 2019-03-05 20:45:17 +00:00