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Richard Diamond 527a4d99f8 [AlignmentFromAssumptions] Fix a SCEV assertion resulting from address space differences. 
Summary:
On targets with different pointer sizes, -alignment-from-assumptions could attempt to create SCEV expressions which use different effective SCEV types. The provided test illustrates the issue.

In `getNewAlignment`, AASCEV would be the (only) alloca, which would have an effective SCEV type of i32. But PtrSCEV, the GEP in this case, due to being in the flat/default address space, will have an effective SCEV of i64.

This patch resolves the issue by truncating PtrSCEV to AASCEV's effective type.

Reviewers: hfinkel, jdoerfert

Reviewed By: jdoerfert

Subscribers: jvesely, nhaehnle, hiraditya, javed.absar, kerbowa, llvm-commits

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D75471
2020-03-29 01:26:31 -05:00
benchmarks
bindings Add an SDK attribute to DICompileUnit 2020-03-11 14:14:06 -07:00
cmake Do export symbols when LLVM_EXPORT_SYMBOLS_FOR_PLUGINS is on. 2020-03-26 09:07:02 +00:00
docs [docs] Added solutions to slow build under common problems. 2020-03-28 04:19:45 -05:00
examples [examples] Fixes for BUILD_SHARED_LIBS=on 2020-03-23 15:21:45 -07:00
include Put back initializers that were dropped in 0ab5b5b8581d9f2951575f7245824e6e4fc57dec 2020-03-28 22:06:12 +01:00
lib [AlignmentFromAssumptions] Fix a SCEV assertion resulting from address space differences. 2020-03-29 01:26:31 -05:00
projects Add few docs and implementation of strcpy and strcat. 2019-10-04 17:30:54 +00:00
resources
runtimes [runtimes] When COMPILER_RT is enabled, consider SANITIZER prefixes 2020-03-11 14:22:20 -07:00
test [AlignmentFromAssumptions] Fix a SCEV assertion resulting from address space differences. 2020-03-29 01:26:31 -05:00
tools [llvm-rc] Allow -1 for menu item IDs 2020-03-28 14:32:08 +02:00
unittests Revert "[FileCollector] Add a method to add a whole directory and it contents." 2020-03-27 19:21:48 -07:00
utils [lit] Avoid global imports in module declaration 2020-03-27 12:07:19 -07:00
.clang-format
.clang-tidy - Update .clang-tidy to ignore parameters of main like functions for naming violations in clang and llvm directory 2020-01-31 16:49:45 +00:00
.gitattributes Fix the "git modified" issue on the preserve-comments-crlf.s. 2019-09-10 12:17:49 +00:00
.gitignore Continue removing llgo. 2020-02-10 10:33:58 -08:00
CMakeLists.txt [cmake] Fix -stripped for umbrella library install targets 2020-03-20 18:46:48 -07:00
CODE_OWNERS.TXT Remove myself from CODE_OWNERS. 2020-02-25 11:59:29 +00:00
configure
CREDITS.TXT
LICENSE.TXT
llvm.spec.in
LLVMBuild.txt
README.txt Test commit. 2020-03-14 18:08:26 -07:00
RELEASE_TESTERS.TXT

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