Evan Cheng c6c942b70f Add a bit IsUndef to MachineOperand. This indicates the def / use register operand is defined by an implicit_def. That means it can def / use any register and passes (e.g. register scavenger) can feel free to ignore them. ... The register allocator, when it allocates a register to a virtual register defined by an implicit_def, can allocate any physical register without worrying about overlapping live ranges. It should mark all of operands of the said virtual register so later passes will do the right thing. This is not the best solution. But it should be a lot less fragile to having the scavenger try to track what is defined by implicit_def. llvm-svn: 74518		2009-06-30 08:49:04 +00:00
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Analysis	Fix the build on Cygwin. Patch by Aaron Gray.	2009-06-30 05:33:46 +00:00
Archive	Avoid leaking memory in an error path. Noticed	2009-06-11 08:09:49 +00:00
AsmParser	Address review comments: add 3 ARM calling conventions.	2009-06-16 18:50:49 +00:00
Bitcode	Fix PR4336: Iterating over use-def chains doesn't seem to be deterministic.	2009-06-16 05:15:21 +00:00
CodeGen	Add a bit IsUndef to MachineOperand. This indicates the def / use register operand is defined by an implicit_def. That means it can def / use any register and passes (e.g. register scavenger) can feel free to ignore them.	2009-06-30 08:49:04 +00:00
CompilerDriver	#include <iostream> is forbidden. Remove it in favor of raw_ostream.	2009-06-30 04:07:12 +00:00
Debugger	Oops...I committed too much.	2009-03-13 04:39:26 +00:00
ExecutionEngine	Get rid of unnecessary global variables.	2009-06-26 16:46:15 +00:00
Linker	Add a new "available_externally" linkage type. This is intended	2009-04-13 05:44:34 +00:00
MC	llvm-mc: Parse .{,b,p2}align{,w,l} directives.	2009-06-29 23:46:59 +00:00
Support	Temporarily revert r74494. It was causing failures in the unit tests.	2009-06-30 07:05:27 +00:00
System	Fix compilation without pthreads.	2009-06-26 08:48:03 +00:00
Target	Add a bit IsUndef to MachineOperand. This indicates the def / use register operand is defined by an implicit_def. That means it can def / use any register and passes (e.g. register scavenger) can feel free to ignore them.	2009-06-30 08:49:04 +00:00
Transforms	Minor code simplification.	2009-06-30 01:24:43 +00:00
VMCore	Add LLVMContext, which will eventually be used as a container for privatizing a lot of (currently) global state, including the	2009-06-30 00:48:55 +00:00
Makefile	Don't build LLVMC when configured with --disable-pic (it needs requires shared	2009-06-29 21:12:26 +00:00