Issue 90053: Fix the LLVM JIT to allocate globals outside function bodies

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Issue 90053: Fix the LLVM JIT to allocate globals outside function bodies (Closed)

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Created:
15 years, 4 months ago by Reid Kleckner

Modified:
15 years, 3 months ago

Reviewers:
nlewycky, Jeffrey Yasskin

CC:
unladen-swallow_googlegroups.com

Base URL:
http://llvm.org/svn/llvm-project/llvm/trunk/

Visibility:
Public.

Description

Add an option to allocate JITed global data separately from code. By default, this option is not enabled to support clients who rely on this behavior. Fixes http://llvm.org/PR4483 A patch to allocate additional memory for globals after we run out is forthcoming.

Patch Set 1 #

Patch Set 2 : Last patch returned 500, ensuring success #

Patch Set 3 : Switched to using a bump allocator for global data. #

Patch Set 4 : Deleting commented out method. #

Patch Set 5 : Added static switch to enable old behavior which is off by default. #

Patch Set 6 : Addressed Evan's comments. #

Created: 15 years, 4 months ago

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	Unified diffs	Side-by-side diffs	Delta from patch set	Stats (+291 lines, -72 lines)			Patch
M	include/llvm/CodeGen/JITCodeEmitter.h	View	1 2	1 chunk	+5 lines, -0 lines	0 comments	Download
M	include/llvm/ExecutionEngine/ExecutionEngine.h	View		3 chunks	+16 lines, -4 lines	0 comments	Download
M	include/llvm/ExecutionEngine/JITMemoryManager.h	View	1 2 3 4 5	3 chunks	+10 lines, -1 line	0 comments	Download
M	lib/ExecutionEngine/ExecutionEngine.cpp	View		2 chunks	+4 lines, -3 lines	0 comments	Download
M	lib/ExecutionEngine/Interpreter/Interpreter.h	View		1 chunk	+2 lines, -1 line	0 comments	Download
M	lib/ExecutionEngine/Interpreter/Interpreter.cpp	View		2 chunks	+2 lines, -2 lines	0 comments	Download
M	lib/ExecutionEngine/JIT/JIT.h	View	5	3 chunks	+15 lines, -6 lines	0 comments	Download
M	lib/ExecutionEngine/JIT/JIT.cpp	View	1 2 3 4 5	4 chunks	+41 lines, -37 lines	0 comments	Download
M	lib/ExecutionEngine/JIT/JITEmitter.cpp	View	1 2	2 chunks	+10 lines, -0 lines	0 comments	Download
M	lib/ExecutionEngine/JIT/JITMemoryManager.cpp	View	1 2 3 4 5	10 chunks	+57 lines, -16 lines	0 comments	Download
M	lib/ExecutionEngine/JIT/TargetSelect.cpp	View		2 chunks	+3 lines, -2 lines	0 comments	Download
A	unittests/ExecutionEngine/JIT/JITTest.cpp	View	1 2 3 4 5	1 chunk	+126 lines, -0 lines	0 comments	Download

Messages

Total messages: 1

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Reid Kleckner

15 years, 4 months ago (2009-06-30 22:12:25 UTC) #1

Here's an initial pass at fixing globals in LLVM.  This doesn't address
compatibility with the unnamed unknown group that Johannes represents, yet. 
However, if they implement a custom memory manager they could trap
allocateGlobal and do the right thing for them.  On the third hand, Johannes
says they "want to make no code changes".

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