Kai Nacke ceb3b46490 PR16726: extend rol/ror matching ... C-like languages promote types like unsigned short to unsigned int before performing an arithmetic operation. Currently the rotate matcher in the DAGCombiner does not consider this situation. This commit extends the DAGCombiner in the way that the pattern (or (shl ([az]ext x), (*ext y)), (srl ([az]ext x), (*ext (sub 32, y)))) is folded into ([az]ext (rotl x, y)) The matching is restricted to aext and zext because in this cases the upper bits are either undefined or known. Test case is included. This fixes PR16726. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@191049 91177308-0d34-0410-b5e6-96231b3b80d8		2013-09-19 23:00:28 +00:00
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Analysis	Fix a constant folding address space place I missed.	2013-09-17 23:23:16 +00:00
AsmParser	Implement function prefix data as an IR feature.	2013-09-16 01:08:15 +00:00
Bitcode	Implement function prefix data as an IR feature.	2013-09-16 01:08:15 +00:00
CodeGen	PR16726: extend rol/ror matching	2013-09-19 23:00:28 +00:00
DebugInfo	Add support for DebugFission to DWARF parser	2013-08-27 09:20:22 +00:00
ExecutionEngine	llvm-c: Add LLVMGetPointerToFunction	2013-09-19 19:55:06 +00:00
IR	Revert "Encapsulate PassManager debug flags to avoid static init and cxa_exit."	2013-09-19 06:02:43 +00:00
IRReader	Add 'const' qualifiers to static const char* variables.	2013-07-16 01:17:10 +00:00
Linker	Implement function prefix data as an IR feature.	2013-09-16 01:08:15 +00:00
MC	Remove extraneous space, the asm printing infrastructure adds a space	2013-09-19 18:41:40 +00:00
Object	ELF: Add support for the exclude section bit for gas compat.	2013-09-15 19:53:20 +00:00
Option	Fix another mistake in r190442.	2013-09-10 23:22:56 +00:00
Support	DebugInfo: Improve IR annotation comments for GNU pubthings.	2013-09-19 22:19:37 +00:00
TableGen	Add an error check for a typo I accidentally made in a td file that caused an assert to fire.	2013-08-20 04:22:09 +00:00
Target	X86 horizontal vector reduction cost model	2013-09-19 17:48:48 +00:00
Transforms	[Fast-math] Disable "(C1/X)*C2 => (C1*C2)/X" if C1/X has multiple uses.	2013-09-19 21:13:46 +00:00
CMakeLists.txt	Move lib/Archive to tools/llvm-ar.	2013-06-17 15:47:20 +00:00
LLVMBuild.txt	Move lib/Archive to tools/llvm-ar.	2013-06-17 15:47:20 +00:00
Makefile	Move lib/Archive to tools/llvm-ar.	2013-06-17 15:47:20 +00:00