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650a66fb4c
llvm/lib
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Xin Tong 650a66fb4c [SCCP] Remove manual folding of terminator instructions. 
Summary:
BranchInst, SwitchInst (with non-default case) with Undef as input is not
possible at this point. As we always default-fold terminator to one target in
ResolvedUndefsIn and set the input accordingly.

So we should only have constantint/blockaddress here.

If ConstantFoldTerminator fails, that could mean 2 things.

1. ConstantFoldTerminator is doing something unexpected, i.e. not folding on constantint
or blockaddress and not making blocks that should be dead dead.
2. This is not a terminator on constantint or blockaddress. Its on a constant or
overdefined, then this block should not be dead.

In both cases, we should assert.

Reviewers: davide, efriedma, sanjoy

Subscribers: llvm-commits

Differential Revision: https://reviews.llvm.org/D30381

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@296281 91177308-0d34-0410-b5e6-96231b3b80d8
2017-02-26 02:11:24 +00:00
..
Analysis [ValueTracking] Don't do an unchecked shift in ComputeNumSignBits 2017-02-25 20:30:45 +00:00
AsmParser Change debug-info-for-profiling from a TargetOption to a function attribute. 2017-02-01 22:45:09 +00:00
Bitcode Move symbols from the global namespace into (anonymous) namespaces. NFC. 2017-02-11 11:06:55 +00:00
CodeGen Revert "In visitSTORE, always use FindBetterChain, rather than only when UseAA is enabled." 2017-02-26 01:27:32 +00:00
DebugInfo Revert r296215, "[PDB] General improvements to Stream library." and followings. 2017-02-25 17:04:23 +00:00
Demangle Add support for demangling C++11 thread_local variables. 2017-01-31 15:56:36 +00:00
ExecutionEngine [Orc] Rename ObjectLinkingLayer -> RTDyldObjectLinkingLayer. 2017-02-20 05:45:14 +00:00
Fuzzer [libFuzzer] Update traces hooks test after r293741 2017-02-22 23:12:36 +00:00
IR [IR][X86] Fix llvm version number in comments in AutoUpgrade. Forgot the next release is 5.0 not 4.1 2017-02-24 05:35:07 +00:00
IRReader
LibDriver
LineEditor
Linker IRMover: Merge flags LinkModuleInlineAsm and IsPerformingImport. 2017-02-03 17:01:14 +00:00
LTO [LTO] Add ability to emit assembly to new LTO API 2017-02-15 20:36:36 +00:00
MC [WebAssembly] Add support for using a wasm global for the stack pointer. 2017-02-24 23:46:05 +00:00
Object Move llvm_unreachable out of switch. 2017-02-22 19:42:14 +00:00
ObjectYAML Move symbols from the global namespace into (anonymous) namespaces. NFC. 2017-02-11 11:06:55 +00:00
Option Cleanup dump() functions. 2017-01-28 02:02:38 +00:00
Passes Add call branch annotation for ICP promoted direct call in SamplePGO mode. 2017-02-23 22:15:18 +00:00
ProfileData [PGO] Directory name stripping in global identifier for static functions 2017-02-25 00:00:36 +00:00
Support [APInt] Add APInt::extractBits() method to extract APInt subrange (reapplied) 2017-02-25 20:01:58 +00:00
TableGen Use print() instead of dump() in code 2017-01-28 02:47:46 +00:00
Target Revert "In visitSTORE, always use FindBetterChain, rather than only when UseAA is enabled." 2017-02-26 01:27:32 +00:00
Transforms [SCCP] Remove manual folding of terminator instructions. 2017-02-26 02:11:24 +00:00
XRay [XRAY] [x86_64] Adding a Flight Data filetype reader to the llvm-xray Trace implementation. 2017-02-17 01:47:16 +00:00
CMakeLists.txt
LLVMBuild.txt