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llvm-mirror/test
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Jingyue Wu 200cc080ad [SeparateConstOffsetFromGEP] sext(a)+sext(b) => sext(a+b) when a+b can't sign-overflow. 
Summary:
This patch implements my promised optimization to reunites certain sexts from
operands after we extract the constant offset. See the header comment of
reuniteExts for its motivation.

One key building block that enables this optimization is Bjarke's poison value
analysis (D11212). That helps to prove "a +nsw b" can't overflow.

Reviewers: broune

Subscribers: jholewinski, sanjoy, llvm-commits

Differential Revision: http://reviews.llvm.org/D12016

llvm-svn: 245003
2015-08-14 02:02:05 +00:00
..
Analysis Emit argmemonly attribute for intrinsics. 2015-08-13 17:40:04 +00:00
Assembler
Bindings
Bitcode Emit argmemonly attribute for intrinsics. 2015-08-13 17:40:04 +00:00
BugPoint
CodeGen MIR Serialization: Change MIR syntax - use custom syntax for MBBs. 2015-08-13 23:10:16 +00:00
DebugInfo Make DW_AT_[MIPS_]linkage_name optional, and off by default for SCE. 2015-08-11 21:36:45 +00:00
ExecutionEngine [mips][mcjit] Calculate correct addend for HI16 and PCHI16 reloc 2015-08-13 15:12:49 +00:00
Feature [IR] Verify EH pad predecessors 2015-08-11 02:48:30 +00:00
FileCheck
Instrumentation [libFuzzer] don't crash if the condition in a switch has unusual type (e.g. i72) 2015-08-11 00:24:39 +00:00
Integer
JitListener
LibDriver
Linker Make DW_AT_[MIPS_]linkage_name optional, and off by default for SCE. 2015-08-11 21:36:45 +00:00
LTO
MC [AArch64] Provide "too few operands" diags on short-form NEON also. 2015-08-13 21:09:13 +00:00
Object Add a test showing that objdump (and so ObjectFIle) can handle shndx. 2015-08-10 21:00:15 +00:00
Other Update test suite to make "ninja check" succeed without native backend builtin 2015-08-04 06:32:54 +00:00
SymbolRewriter
TableGen
tools Enable five passing dsymutil tests on Windows. 2015-08-11 06:05:27 +00:00
Transforms [SeparateConstOffsetFromGEP] sext(a)+sext(b) => sext(a+b) when a+b can't sign-overflow. 2015-08-14 02:02:05 +00:00
Unit
Verifier
YAMLParser
.clang-format
CMakeLists.txt
lit.cfg Improve lit "native" feature to check if the native backend is builtin 2015-08-04 06:32:31 +00:00
lit.site.cfg.in Improve lit "native" feature to check if the native backend is builtin 2015-08-04 06:32:31 +00:00
Makefile
Makefile.tests
TestRunner.sh