llvm-6502/test/CodeGen
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
..
AArch64 [AArch64] Removed unnecessary copy patterns with v1fx types. 2013-12-12 15:46:29 +00:00
ARM Enabling thumb2 mode used to force support for armv6t2. Replace this 2013-12-13 11:16:00 +00:00
CPP
Generic Fix pr18235. 2013-12-13 16:05:32 +00:00
Hexagon
Inputs
Mips
MSP430
NVPTX
PowerPC PowerPC: add Linux triple to TLS tests 2013-12-12 11:51:23 +00:00
R600 R600/SI: Minor improvements to test. 2013-12-14 00:38:04 +00:00
SPARC
SystemZ [SystemZ] Optimize X [!=]= Y in cases where X - Y or Y - X is also computed 2013-12-13 15:50:30 +00:00
Thumb
Thumb2 Enabling thumb2 mode used to force support for armv6t2. Replace this 2013-12-13 11:16:00 +00:00
X86 [Stackmap] Liveness Analysis Pass 2013-12-14 06:53:06 +00:00
XCore