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David Majnemer b81cd63c4b Optimize icmp involving addition better 
Allows LLVM to optimize sequences like the following:

%add = add nsw i32 %x, 1
%cmp = icmp sgt i32 %add, %y

into:

%cmp = icmp sge i32 %x, %y

as well as:

%add1 = add nsw i32 %x, 20
%add2 = add nsw i32 %y, 57
%cmp = icmp sge i32 %add1, %add2

into:

%add = add nsw i32 %y, 37
%cmp = icmp sle i32 %cmp, %x

llvm-svn: 179316
 		2013-04-11 20:05:46 +00:00
..
Analysis RegionInfo: Add helpers to replace entry/exit recursively 2013-04-10 06:54:49 +00:00
Archive Fix auto_ptr is deprecated warnings 2013-02-26 21:20:35 +00:00
AsmParser Rationalize the formatting of these case labels. Having two sorted 2013-04-09 19:46:46 +00:00
Bitcode Whitespace cleanup 2013-04-01 02:28:07 +00:00
CodeGen Add braces around || in && to pacify GCC. 2013-04-11 11:57:01 +00:00
DebugInfo Rename the C function to create a SLPVectorizerPass to something sane and expose it in the header file. 2013-04-11 11:36:36 +00:00
ExecutionEngine Respect Addend when processing MCJIT relocations to local/global symbols. 2013-04-05 13:29:04 +00:00
IR Measure time that IR parsing took as part of the -time-passes measurement. 2013-04-03 15:33:45 +00:00
IRReader Measure time that IR parsing took as part of the -time-passes measurement. 2013-04-03 15:33:45 +00:00
Linker Specutively revert r178130. 2013-03-27 17:54:41 +00:00
MC MC: Support COFF image-relative MCSymbolRefs 2013-04-10 23:28:17 +00:00
Object Revert my last two commits while I debug what is wrong in a big endian host. 2013-04-11 17:46:10 +00:00
Option Resort the #include lines in include/... and lib/... with the 2013-01-02 10:22:59 +00:00
Support Add a function to check if an argument list is too long. 2013-04-11 14:06:34 +00:00
TableGen Allow TableGen DAG arguments to be just a name. 2013-03-24 19:36:51 +00:00
Target [mips] Custom-lower i64 MULHS and MULHU nodes. Remove the code which selects 2013-04-11 19:29:26 +00:00
Transforms Optimize icmp involving addition better 2013-04-11 20:05:46 +00:00
CMakeLists.txt Split out the IRReader header and the utility functions it provides into 2013-03-26 02:25:37 +00:00
LLVMBuild.txt Split out the IRReader header and the utility functions it provides into 2013-03-26 02:25:37 +00:00
Makefile Split out the IRReader header and the utility functions it provides into 2013-03-26 02:25:37 +00:00