llvm-6502/lib
Jakob Stoklund Olesen 6d9fe79afe Reapply r185393.
Original commit message:

Remove floating point computations from SpillPlacement.cpp.

Patch by Benjamin Kramer!

Use the BlockFrequency class instead of floats in the Hopfield network
computations. This rescales the node Bias field from a [-2;2] float
range to two block frequencies BiasN and BiasP pulling in opposite
directions. This construct has a more predictable behavior when block
frequencies saturate.

The per-node scaling factors are no longer necessary, assuming the block
frequencies around a bundle are consistent.

This patch can cause the register allocator to make different spilling
decisions. The differences should be small.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186434 91177308-0d34-0410-b5e6-96231b3b80d8
2013-07-16 18:26:15 +00:00
..
Analysis Add 'const' qualifiers to static const char* variables. 2013-07-16 01:17:10 +00:00
AsmParser Target/X86: Add explicit Win64 and System V/x86-64 calling conventions. 2013-07-12 06:02:35 +00:00
Bitcode Use SmallVectorImpl& instead of SmallVector to avoid repeating small vector size. 2013-07-11 16:22:38 +00:00
CodeGen Reapply r185393. 2013-07-16 18:26:15 +00:00
DebugInfo DebugInfo: Factor out parsing compile unit DIEs to a separate function. Improve code style and comments. 2013-07-15 08:43:35 +00:00
ExecutionEngine
IR Use SmallVectorImpl& instead of SmallVector to avoid repeating small vector size. 2013-07-14 04:42:23 +00:00
IRReader Add 'const' qualifiers to static const char* variables. 2013-07-16 01:17:10 +00:00
Linker
MC Add 'const' qualifiers to static const char* variables. 2013-07-16 01:17:10 +00:00
Object Add 'const' qualifiers to static const char* variables. 2013-07-16 01:17:10 +00:00
Option Revert "[Option] Store arg strings in a set backed by a BumpPtrAllocator" 2013-07-15 16:40:52 +00:00
Support [Support] Add a Unicode conversion wrapper from UTF16 to UTF8 2013-07-16 17:14:33 +00:00
TableGen
Target [X86] Use min/max to optimze unsigend vector comparison on X86 2013-07-16 18:20:45 +00:00
Transforms Make SpecialCaseList match full strings, as documented, using anchors. 2013-07-16 17:56:07 +00:00
CMakeLists.txt
LLVMBuild.txt
Makefile