llvm-6502/lib
Juergen Ributzka aaecc0fc08 [Stackmap] Liveness Analysis Pass
This optional register liveness analysis pass can be enabled with either
-enable-stackmap-liveness, -enable-patchpoint-liveness, or both. The pass
traverses each basic block in a machine function. For each basic block the
instructions are processed in reversed order and if a patchpoint or stackmap
instruction is encountered the current live-out register set is encoded as a
register mask and attached to the instruction.

Later on during stackmap generation the live-out register mask is processed and
also emitted as part of the stackmap.

This information is optional and intended for optimization purposes only. This
will enable a client of the stackmap to reason about the registers it can use
and which registers need to be preserved.

Reviewed by Andy

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@197317 91177308-0d34-0410-b5e6-96231b3b80d8
2013-12-14 06:53:06 +00:00
..
Analysis [block-freq] Teach branch probability how to return the edge weight in between a BasicBlock and one of its successors. 2013-12-14 02:24:25 +00:00
AsmParser Debug Info: drop debug info via upgrading path if version number does not match. 2013-12-02 21:29:56 +00:00
Bitcode Remove unused value. 2013-12-07 02:27:52 +00:00
CodeGen [Stackmap] Liveness Analysis Pass 2013-12-14 06:53:06 +00:00
DebugInfo DebugInfo: Move type units into the debug_types section with appropriate comdat grouping and type unit headers 2013-12-13 21:33:40 +00:00
ExecutionEngine Prune redundant dependencies in LLVMBuild.txt. 2013-12-11 00:30:57 +00:00
IR Pointer sizes are stored in Bytes. Fix variables names to say so. 2013-12-13 23:15:20 +00:00
IRReader [llvm-c] Expose IRReader interface 2013-11-06 09:21:15 +00:00
Linker Revert "Move copying of global initializers below the cloning of functions." 2013-11-09 00:43:18 +00:00
LTO Add TargetLibraryInfo in LTO passes builder 2013-12-12 01:37:39 +00:00
MC DebugInfo: Move type units into the debug_types section with appropriate comdat grouping and type unit headers 2013-12-13 21:33:40 +00:00
Object Fix a pair of array index checks. 2013-12-06 02:33:38 +00:00
Option Avoid buffer copies when a Twine already is a StringRef. 2013-12-03 18:18:28 +00:00
Support [block-freq] Add a right shift to BlockFrequency that saturates at 1. 2013-12-14 02:24:22 +00:00
TableGen Fix most memory leaks in tablegen. 2013-10-31 04:07:41 +00:00
Target [Stackmap] Only the AnyReg calling convention should preserve all registers. 2013-12-14 06:52:59 +00:00
Transforms Fix a use-after-free error in GlobalOpt CleanupConstantGlobalUsers 2013-12-12 20:45:24 +00:00
CMakeLists.txt Move LTO support library to a component, allowing it to be tested 2013-09-24 23:52:22 +00:00
LLVMBuild.txt Move LTO support library to a component, allowing it to be tested 2013-09-24 23:52:22 +00:00
Makefile Reformat Makefile. No other changes. 2013-10-30 04:03:03 +00:00