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Craig Topper e3e2aba431 [LegalizeTypes] Teach PromoteIntRes_BITCAST to better handle a bitcast with vector output type and a vector input type that needs to be widened 
Summary: Previously if we had a bitcast vector output type that needs promotion and a vector input type that needs widening we would just do a stack store and load to handle the conversion. We can do a little better if we can widen the bitcast to a legal vector type the same size as the widened input type. Then we can do the bitcast between this widened type and the widened input type. Afterwards we can extract_subvector back to the original output and any_extend that. Type legalization will then circle back and handle promotion of the extract_subvector and the any_extend will just be removed. This will avoid going through the stack and allows us to remove a custom version of this legalization from X86.

Reviewers: efriedma, RKSimon

Reviewed By: efriedma

Subscribers: javed.absar, llvm-commits

Differential Revision: https://reviews.llvm.org/D53229

llvm-svn: 345567
2018-10-30 03:27:15 +00:00
benchmarks
bindings [TI removal] Remove TerminatorInst references from bindings. 2018-10-18 07:40:03 +00:00
cmake [MinGW] Enable large file for mingw-w64 2018-10-24 12:22:12 +00:00
docs Add docs+a script for building clang/LLVM with PGO 2018-10-26 20:56:03 +00:00
examples [BuildingAJIT] Update the Ch1 KaleidoscopeJIT class to expose errors to clients. 2018-10-18 00:51:38 +00:00
include Fix typos in comment 2018-10-30 01:11:52 +00:00
lib [LegalizeTypes] Teach PromoteIntRes_BITCAST to better handle a bitcast with vector output type and a vector input type that needs to be widened 2018-10-30 03:27:15 +00:00
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test [LegalizeTypes] Teach PromoteIntRes_BITCAST to better handle a bitcast with vector output type and a vector input type that needs to be widened 2018-10-30 03:27:15 +00:00
tools [DWARF][NFC] Refactor range list extraction and dumping 2018-10-29 22:16:47 +00:00
unittests [VFS] Add property 'fallthrough' that controls fallback to real file system. 2018-10-26 22:14:33 +00:00
utils [llvm-mca][UpdateTestChecks] Don't try to align blocks that have already been subject to alignment in update_mca_test_checks.py 2018-10-29 13:24:20 +00:00
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.gitignore [git/svn] Ignore Visual Studio's CMakeSettings.json. 2018-10-29 14:51:02 +00:00
CMakeLists.txt [CMake] Fix a missing LLVM_ENABLE_IDE from r344555 2018-10-15 22:36:59 +00:00
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