Arnold Schwaighofer 3d5f96ee1b BasicAA: Recognize cyclic NoAlias phis ... Enhances basic alias analysis to recognize phis whose first incoming values are NoAlias and whose other incoming values are just the phi node itself through some amount of recursion. Example: With this change basicaa reports that ptr_phi and ptr_phi2 do not alias each other. bb: ptr = ptr2 + 1 loop: ptr_phi = phi [bb, ptr], [loop, ptr_plus_one] ptr2_phi = phi [bb, ptr2], [loop, ptr2_plus_one] ... ptr_plus_one = gep ptr_phi, 1 ptr2_plus_one = gep ptr2_phi, 1 This enables the elimination of one load in code like the following: extern int foo; int test_noalias(int *ptr, int num, int* coeff) { int *ptr2 = ptr; int result = (*ptr++) * (*coeff--); while (num--) { *ptr2++ = *ptr; result += (*coeff--) * (*ptr++); } *ptr = foo; return result; } Part 2/2 of fix for PR13564. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@163319 91177308-0d34-0410-b5e6-96231b3b80d8		2012-09-06 14:41:53 +00:00
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Analysis	BasicAA: Recognize cyclic NoAlias phis	2012-09-06 14:41:53 +00:00
Archive	Mark checkSignature const, and in turn stop casting away const from	2012-09-05 22:09:23 +00:00
AsmParser	[ms-inline asm] Enumerate the InlineAsm dialects and rename the nsdialect to	2012-09-05 19:00:49 +00:00
Bitcode	[ms-inline asm] Enumerate the InlineAsm dialects and rename the nsdialect to	2012-09-05 19:00:49 +00:00
CodeGen	Disable stack coloring by default in order to resolve the i386 failures.	2012-09-06 14:27:06 +00:00
DebugInfo	Stop casting away const qualifier needlessly.	2012-09-05 22:26:57 +00:00
ExecutionEngine	Stop casting away const qualifier needlessly.	2012-09-05 22:26:57 +00:00
Linker
MC	Constify subtarget info properly so that we dont cast away the const in	2012-09-05 21:43:57 +00:00
Object
Support	Whitespace.	2012-09-06 03:02:56 +00:00
TableGen
Target	Use correct part of complex operand to encode VST1 alignment.	2012-09-06 14:36:55 +00:00
Transforms	Fix switch_to_lookup_table.ll test from r163302.	2012-09-06 10:10:35 +00:00
VMCore	Stop casting away const qualifier needlessly.	2012-09-05 22:26:57 +00:00
CMakeLists.txt
LLVMBuild.txt
Makefile