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06413cd0f0
llvm-6502/lib
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Arnold Schwaighofer 06413cd0f0 LoopVectorizer: Add a check that the backedge taken count + 1 does not overflow 
The loop vectorizer instantiates be-taken-count + 1 as the loop iteration count.
If this expression overflows the generated code was invalid.

In case of overflow the code now jumps to the scalar loop.

Fixes PR17288.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@209854 91177308-0d34-0410-b5e6-96231b3b80d8
2014-05-29 22:10:01 +00:00
..
Analysis implement missing SCEVDivision case 2014-05-29 19:44:09 +00:00
AsmParser [pr19844] Add thread local mode to aliases. 2014-05-28 18:15:43 +00:00
Bitcode [pr19844] Add thread local mode to aliases. 2014-05-28 18:15:43 +00:00
CodeGen Debug Info: Remove unused code. The MInsn of an _abstract_ variable is 2014-05-29 16:56:48 +00:00
DebugInfo [modules] Add module maps for LLVM. These are not quite ready for prime-time 2014-05-21 02:46:14 +00:00
ExecutionEngine AArch64/ARM64: move ARM64 into AArch64's place 2014-05-24 12:50:23 +00:00
IR [pr19844] Add thread local mode to aliases. 2014-05-28 18:15:43 +00:00
IRReader [C++11] More 'nullptr' conversion. In some cases just using a boolean check instead of comparing to nullptr. 2014-04-15 06:32:26 +00:00
LineEditor [CMake] Use LINK_LIBS instead of target_link_libraries(). 2014-02-26 06:41:29 +00:00
Linker Use create methods since msvc doesn't handle delegating constructors. 2014-05-17 21:29:57 +00:00
LTO AArch64/ARM64: move ARM64 into AArch64's place 2014-05-24 12:50:23 +00:00
MC [mips][mips64r6] Add Relocations R_MIPS_PCHI16, R_MIPS_PCLO16 2014-05-27 14:58:51 +00:00
Object [elf2yaml][ELF] Move Info field to the RelocationSection structure. This 2014-05-29 11:05:31 +00:00
Option Options: Use erase_if to remove Args from the list. 2014-05-18 15:14:13 +00:00
ProfileData ProfileData: Allow multiple profiles in RawInstrProfReader 2014-05-16 00:38:00 +00:00
Support Fixup sys::getHostCPUFeatures crypto names so it doesn't clash with kernel headers 2014-05-23 10:14:13 +00:00
TableGen [modules] Add module maps for LLVM. These are not quite ready for prime-time 2014-05-21 02:46:14 +00:00
Target [PPC] Use alias symbols in address computation. 2014-05-29 15:41:38 +00:00
Transforms LoopVectorizer: Add a check that the backedge taken count + 1 does not overflow 2014-05-29 22:10:01 +00:00
CMakeLists.txt ProfileData: Introduce the InstrProfReader interface and a text reader 2014-03-21 17:24:48 +00:00
LLVMBuild.txt ProfileData: Introduce the InstrProfReader interface and a text reader 2014-03-21 17:24:48 +00:00
Makefile ProfileData: Introduce the InstrProfReader interface and a text reader 2014-03-21 17:24:48 +00:00