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Andrea Di Biagio 458a669f49 [InstCombine] Fix wrong folding of constant comparisons involving ashr and negative values. 
This patch fixes a bug in method InstCombiner::FoldCmpCstShrCst where we
wrongly computed the distance between the highest bits set of two negative
values.

This fixes PR21222.

Differential Revision: http://reviews.llvm.org/D5700

llvm-svn: 219406
 		2014-10-09 12:41:49 +00:00
..
Analysis [BasicAA] Revert "Revert r218714 - Make better use of zext and sign information." 2014-10-06 18:37:59 +00:00
AsmParser Make CallingConv::ID an alias of "unsigned". 2014-09-10 18:00:17 +00:00
Bitcode Do not destroy external linkage when deleting function body 2014-09-23 12:54:19 +00:00
CodeGen Remove more calls to getSubtargetImpl from the schedulers and 2014-10-09 06:28:06 +00:00
DebugInfo Remove bogus std::error_code returns form SectionRef. 2014-10-08 15:28:58 +00:00
ExecutionEngine Remove bogus std::error_code returns form SectionRef. 2014-10-08 15:28:58 +00:00
IR DebugInfo: Ensure that all debug location scope chains from instructions within a function, lead to the function itself. 2014-10-07 16:56:20 +00:00
IRReader Pass a && to getLazyBitcodeModule. 2014-09-03 17:31:46 +00:00
LTO LTO: Document the Boolean argument from r218784 2014-10-02 21:11:04 +00:00
LineEditor [CMake] Use LINK_LIBS instead of target_link_libraries(). 2014-02-26 06:41:29 +00:00
Linker Merge alignment of common GlobalValue. 2014-09-09 17:48:18 +00:00
MC Fix COFF section index relocation should be 16 bits, not 32 2014-10-08 18:01:49 +00:00
Object Object, COFF: Move the VirtualSize/SizeOfRawData logic to getSectionSize 2014-10-09 08:42:31 +00:00
Option Add an overload of getLastArgNoClaim taking two OptSpecifiers. 2014-09-12 19:42:53 +00:00
ProfileData Remove bogus std::error_code returns form SectionRef. 2014-10-08 15:28:58 +00:00
Support Revert r219354. It seems to break some buildbots. 2014-10-08 23:07:59 +00:00
TableGen Eliminate some deep std::vector copies. NFC. 2014-10-03 18:33:16 +00:00
Target [AArch64] Enable partial & runtime unrolling on cortex-a57. 2014-10-09 10:13:27 +00:00
Transforms [InstCombine] Fix wrong folding of constant comparisons involving ashr and negative values. 2014-10-09 12:41:49 +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