llvm-6502

mirror of https://github.com/c64scene-ar/llvm-6502.git synced 2024-07-22 09:29:31 +00:00

LLVM backend for 6502

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Zhou Sheng 702aa2ee19 The patch is to improve the memory footprint of pass GlobalOpt. Also check in a case to repeat the issue, on which 'opt -globalopt' consumes 1.6GB memory. The big memory footprint cause is that current GlobalOpt one by one hoists and stores the leaf element constant into the global array, in each iteration, it recreates the global array initializer constant and leave the old initializer alone. This may result in many obsolete constants left. For example: we have global array @rom = global [16 x i32] zeroinitializer After the first element value is hoisted and installed: @rom = global [16 x i32] [ 1, 0, 0, ... ] After the second element value is installed: @rom = global [16 x 32] [ 1, 2, 0, 0, ... ] // here the previous initializer is obsolete ... When the transform is done, we have 15 obsolete initializers left useless. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169079 91177308-0d34-0410-b5e6-96231b3b80d8		2012-12-01 04:38:53 +00:00
autoconf	Fix a pasto.	2012-11-19 19:31:02 +00:00
bindings	[python] fix get_library()	2012-11-20 22:27:55 +00:00
cmake	Removing SUPPORTS_COVERED_SWITCH_DEFAULT_FLAG	2012-11-26 02:02:08 +00:00
docs	Removed redundancy in wording	2012-11-30 23:14:52 +00:00
examples	Fix gcc's -Wunused-but-set-variable warnings.	2012-11-26 00:56:44 +00:00
include	misched: Fix RegisterPressureTracker handling of DebugVals.	2012-12-01 01:22:49 +00:00
lib	The patch is to improve the memory footprint of pass GlobalOpt.	2012-12-01 04:38:53 +00:00
projects	Add ENABLE_CXX11 and ENABLE_WERROR to Makefile.llvm.rules for sample project. They were previously added to Makefile.llvm.config.in but the consumption was missing	2012-11-27 08:12:24 +00:00
runtime	libprofile/CommonProfiling.c: Fix according to C89.	2012-11-02 01:32:02 +00:00
test	The patch is to improve the memory footprint of pass GlobalOpt.	2012-12-01 04:38:53 +00:00
tools	Add a -time-compilations=<N> option to llc.	2012-11-30 21:42:47 +00:00
unittests	Switch LLVM_USE_RVALUE_REFERENCES to LLVM_HAS_RVALUE_REFERENCES.	2012-11-30 11:45:22 +00:00
utils	Update the emacs mode to recognize fadd, fsum, fmul, fdiv, frem, fcmp, icmp	2012-12-01 00:42:27 +00:00
.gitignore	Add extra vim swap file pattern	2012-10-09 23:48:34 +00:00
CMakeLists.txt	Kick off 3.3 cycle for LLVM trunk.	2012-11-17 22:01:08 +00:00
CODE_OWNERS.TXT	Be more clear on what parts of code I own.	2012-11-30 23:00:25 +00:00
configure	Fix a pasto.	2012-11-19 19:31:02 +00:00
CREDITS.TXT	Update my email address.	2012-11-29 21:17:26 +00:00
LICENSE.TXT	Few more small CellSPU removals.	2012-11-14 22:13:56 +00:00
llvm.spec.in	Tidy up. s/Low Level Virtual Machine/LLVM/.	2012-01-25 22:00:23 +00:00
LLVMBuild.txt	LLVMBuild: Introduce a common section which currently has a list of the	2011-12-12 22:45:54 +00:00
Makefile	[c-index-test] When building with BUILD_CLANG_ONLY=YES, include c-index-test.	2012-11-06 19:54:46 +00:00
Makefile.common	[docs] Remove unsupported references to ExtraSource variable.	2012-05-15 21:32:27 +00:00
Makefile.config.in	Re-enable support for --program-prefix.	2012-10-01 18:40:32 +00:00
Makefile.rules	Use MACOSX_DEPLOYMENT_TARGET when it is set. <rdar://problem/12433905>	2012-10-12 21:48:14 +00:00
README.txt	Test commit.	2012-11-29 16:19:11 +00:00

README.txt

Low Level Virtual Machine (LLVM)
================================

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