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b5c26ef9da
LSR has gradually been improved to more aggressively reuse existing code, particularly existing phi cycles. This exposed problems with the SCEVExpander's sloppy treatment of its insertion point. I applied some rigor to the insertion point problem that will hopefully avoid an endless bug cycle in this area. Changes: - Always used properlyDominates to check safe code hoisting. - The insertion point provided to SCEV is now considered a lower bound. This is usually a block terminator or the use itself. Under no cirumstance may SCEVExpander insert below this point. - LSR is reponsible for finding a "canonical" insertion point across expansion of different expressions. - Robust logic to determine whether IV increments are in "expanded" form and/or can be safely hoisted above some insertion point. Fixes PR11783: SCEVExpander assert. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@148535 91177308-0d34-0410-b5e6-96231b3b80d8 |
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.. | ||
Analysis | ||
Archive | ||
Assembler | ||
Bindings/Ocaml | ||
Bitcode | ||
BugPoint | ||
CodeGen | ||
DebugInfo | ||
ExecutionEngine | ||
Feature | ||
Instrumentation/AddressSanitizer | ||
Integer | ||
lib | ||
Linker | ||
MC | ||
Object | ||
Other | ||
Scripts | ||
TableGen | ||
Transforms | ||
Unit | ||
Verifier | ||
CMakeLists.txt | ||
lit.cfg | ||
lit.site.cfg.in | ||
Makefile | ||
Makefile.tests | ||
site.exp.in | ||
TestRunner.sh |