mirror of
https://github.com/RPCS3/llvm.git
synced 2026-01-31 01:25:19 +01:00
Currently in llvm, CalleeSavedInfo can only assign a callee saved register to stack frame index to be spilled in the prologue. We would like to enable spilling gprs to vector registers. This patch adds the capability to spill to other registers aside from just the stack. It also adds the changes for power9 to spill gprs to volatile vector registers when they are available. This happens only for leaf functions when using the option -ppc-enable-pe-vector-spills. Differential Revision: https://reviews.llvm.org/D39386 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@346512 91177308-0d34-0410-b5e6-96231b3b80d8