commit b614931bfabb62132ec183708d1b05dd0c59702e
author Mike Klein <mtklein@google.com> Wed Feb 26 13:04:23 2020 -0600
committer Mike Klein <mtklein@google.com> Thu Feb 27 13:01:37 2020 +0000
tree 82c1a0325c3a67637cb6b0657a40b94152604a3d
parent 525fd36dd3195281bcbc2e371fa87037a7cb1002

basic JIT support?

Codegen is unimpressive so far:

(lldb) dis -s fJITEntry -c 40
    0x10a4dd000: movq   %rdi, -0x8(%rsp)
    0x10a4dd005: movq   %rsi, -0x10(%rsp)
    0x10a4dd00a: movabsq $0x10a4eb000, %rax        ; imm = 0x10A4EB000
    0x10a4dd014: movaps (%rax), %xmm0
    0x10a4dd017: cmpq   $0x7, -0x8(%rsp)
    0x10a4dd01d: jbe    0x10a4dd066
    0x10a4dd01f: nop
    0x10a4dd020: movq   -0x10(%rsp), %rax
    0x10a4dd025: movups %xmm0, 0x10(%rax)
    0x10a4dd029: movups %xmm0, (%rax)
    0x10a4dd02c: addq   $-0x8, -0x8(%rsp)
    0x10a4dd032: addq   $0x20, -0x10(%rsp)
    0x10a4dd038: cmpq   $0x7, -0x8(%rsp)
    0x10a4dd03e: ja     0x10a4dd020
    0x10a4dd040: jmp    0x10a4dd066
    0x10a4dd042: nop
    0x10a4dd043: nop
    0x10a4dd044: nop
    0x10a4dd045: nop
    0x10a4dd046: nop
    0x10a4dd047: nop
    0x10a4dd048: nop
    0x10a4dd049: nop
    0x10a4dd04a: nop
    0x10a4dd04b: nop
    0x10a4dd04c: nop
    0x10a4dd04d: nop
    0x10a4dd04e: nop
    0x10a4dd04f: nop
    0x10a4dd050: movq   -0x10(%rsp), %rax
    0x10a4dd055: movl   $0x2a, (%rax)
    0x10a4dd05b: decq   -0x8(%rsp)
    0x10a4dd060: addq   $0x4, -0x10(%rsp)
    0x10a4dd066: cmpq   $0x0, -0x8(%rsp)
    0x10a4dd06c: jne    0x10a4dd050
    0x10a4dd06e: retq
    ...

Change-Id: I97576e7b6e0696f248853e55de4f045f2b5ce77c
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/273518
Reviewed-by: Herb Derby <herb@google.com>