diff options
| author | Takashi Kokubun <[email protected]> | 2022-12-31 14:14:53 -0800 |
|---|---|---|
| committer | Takashi Kokubun <[email protected]> | 2023-03-05 22:11:20 -0800 |
| commit | 2b8d1c93ea4d44fba5997901fc4a50b9436bc8b5 (patch) | |
| tree | e9fe187e757157932a388acf9cae43a6a4c09d21 /lib/ruby_vm/mjit/compiler.rb | |
| parent | d7dba4c51066eb706987356ad6b862a0b60b1aeb (diff) | |
Support extended registers
and move argument registers to a couple of them.
Diffstat (limited to 'lib/ruby_vm/mjit/compiler.rb')
| -rw-r--r-- | lib/ruby_vm/mjit/compiler.rb | 15 |
1 files changed, 11 insertions, 4 deletions
diff --git a/lib/ruby_vm/mjit/compiler.rb b/lib/ruby_vm/mjit/compiler.rb index 6203863218..ac094c7007 100644 --- a/lib/ruby_vm/mjit/compiler.rb +++ b/lib/ruby_vm/mjit/compiler.rb @@ -16,9 +16,10 @@ module RubyVM::MJIT Qnil = Fiddle::Qnil Qundef = Fiddle::Qundef - # Fixed registers - EC = :rdi # TODO: change this - CFP = :rsi # TODO: change this + # Callee-saved registers + # TODO: support using r12/r13 here + EC = :r14 + CFP = :r15 SP = :rbx class Compiler @@ -64,9 +65,15 @@ module RubyVM::MJIT asm.comment("MJIT entry") # Save callee-saved registers used by JITed code + asm.push(CFP) + asm.push(EC) asm.push(SP) - # Load sp to a register + # Move arguments EC and CFP to dedicated registers + asm.mov(EC, :rdi) + asm.mov(CFP, :rsi) + + # Load sp to a dedicated register asm.mov(SP, [CFP, C.rb_control_frame_t.offsetof(:sp)]) # rbx = cfp->sp end |