Chris Lattner 199ba42cbf Implement a new optimization in the inliner: if inlining multiple ... calls into a function and if the calls bring in arrays, try to merge them together to reduce stack size. For example, in the testcase we'd previously end up with 4 allocas, now we end up with 2 allocas. As described in the comments, this is not really the ideal solution to this problem, but it is surprisingly effective. For example, on 176.gcc, we end up eliminating 67 arrays at "gccas" time and another 24 at "llvm-ld" time. One piece of concern that I didn't look into: at -O0 -g with forced inlining this will almost certainly result in worse debug info. I think this is acceptable though given that this is a case of "debugging optimized code", and we don't want debug info to prevent the optimizer from doing things anyway. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80215 91177308-0d34-0410-b5e6-96231b3b80d8		2009-08-27 06:29:33 +00:00
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Analysis	Unbreak CMake build	2009-08-26 16:33:57 +00:00
Archive	Prune #includes from llvm/Linker.h and llvm/System/Path.h,	2009-08-23 22:45:37 +00:00
AsmParser	Revert 79977. It causes llvm-gcc bootstrap failures on some platforms.	2009-08-26 05:01:18 +00:00
Bitcode	Revert 79977. It causes llvm-gcc bootstrap failures on some platforms.	2009-08-26 05:01:18 +00:00
CodeGen	Revert accidental commit.	2009-08-27 03:32:50 +00:00
CompilerDriver	convert LoopInfo.h and GraphWriter.h to use raw_ostream	2009-08-23 07:19:13 +00:00
Debugger	Prune #includes from llvm/Linker.h and llvm/System/Path.h,	2009-08-23 22:45:37 +00:00
ExecutionEngine	Initialize the PoisonMemory member before initializing	2009-08-27 01:25:57 +00:00
Linker	Prune #includes from llvm/Linker.h and llvm/System/Path.h,	2009-08-23 22:45:37 +00:00
MC	Update CMake	2009-08-27 02:08:37 +00:00
Support	Make LLVM command-line tools overwrite their output files without -f.	2009-08-25 15:34:52 +00:00
System	remove the last uses of Config/alloca.h	2009-08-23 22:57:38 +00:00
Target	Fix PR4789. Teach eliminateFrameIndex how to handle VLDRQ and VSTRQ which cannot fold any immediate offset.	2009-08-27 01:23:50 +00:00
Transforms	Implement a new optimization in the inliner: if inlining multiple	2009-08-27 06:29:33 +00:00
VMCore	Revert 79977. It causes llvm-gcc bootstrap failures on some platforms.	2009-08-26 05:01:18 +00:00
Makefile	LLVMC doesn't need ENABLE_PIC to build now.	2009-07-04 03:54:54 +00:00