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e339d025d2
llvm-mirror/lib
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Ahmed Bougacha e339d025d2 [AArch64] Generalize extract-high DUP extension to MOVI/MVNI. 
These are really immediate DUPs, and suffer from the same problem
with long instructions with a high/2 variant (e.g. smull).

By extending a MOVI (or DUP, before this patch), we can avoid an ext
on the other operand of the long instruction, e.g. turning:
    ext.16b v0, v0, v0, #8
    movi.4h v1, #0x53
    smull.4s  v0, v0, v1
into:
    movi.8h v1, #0x53
    smull2.4s  v0, v0, v1

While there, add a now-necessary combine to fold (VT NVCAST (VT x)).

llvm-svn: 239799
2015-06-16 01:18:14 +00:00
..
Analysis Move logic from JumpThreading into LazyValue info to simplify caller. 2015-06-16 00:49:59 +00:00
AsmParser modules: Add explicit dependency on intrinsics_gen 2015-06-16 00:44:12 +00:00
Bitcode modules: Add explicit dependency on intrinsics_gen 2015-06-16 00:44:12 +00:00
CodeGen MIR Serialization: Print and parse simple machine function attributes. 2015-06-16 00:10:47 +00:00
DebugInfo [DWARF] Fix a bug in line info handling 2015-05-31 23:37:04 +00:00
ExecutionEngine modules: Add explicit dependency on intrinsics_gen 2015-06-16 00:44:12 +00:00
Fuzzer [lib/Fuzzer] make assertions more informative and update comments for the user-supplied mutator 2015-05-30 17:33:13 +00:00
IR Debug Info IR: Switch DIObjCProperty to use DITypeRef. 2015-06-15 23:18:03 +00:00
IRReader modules: Add explicit dependency on intrinsics_gen 2015-06-16 00:44:12 +00:00
LibDriver Bring in a BumpPtrStringSaver from lld and simplify the interface. 2015-06-13 12:49:52 +00:00
LineEditor
Linker modules: Add explicit dependency on intrinsics_gen 2015-06-16 00:44:12 +00:00
LTO Wrap some long lines in LLVMBuild files. NFC 2015-06-12 18:44:57 +00:00
MC [CodeGen] Introduce a FAULTING_LOAD_OP pseudo-op. 2015-06-15 18:44:08 +00:00
Object modules: Add explicit dependency on intrinsics_gen 2015-06-16 00:44:12 +00:00
Option
Passes
ProfileData modules: Add explicit dependency on intrinsics_gen 2015-06-16 00:44:12 +00:00
Support MIR Serialization: Connect the machine function analysis pass to the MIR parser. 2015-06-15 20:30:22 +00:00
TableGen [TableGen] Change OpInit::getNumOperands and getOperand to use unsigned integers. NFC 2015-06-06 01:34:04 +00:00
Target [AArch64] Generalize extract-high DUP extension to MOVI/MVNI. 2015-06-16 01:18:14 +00:00
Transforms Move logic from JumpThreading into LazyValue info to simplify caller. 2015-06-16 00:49:59 +00:00
CMakeLists.txt LibDriver, llvm-lib: introduce. 2015-06-09 21:50:22 +00:00
LLVMBuild.txt Wrap some long lines in LLVMBuild files. NFC 2015-06-12 18:44:57 +00:00
Makefile LibDriver, llvm-lib: introduce. 2015-06-09 21:50:22 +00:00