llvm-6502

mirror of https://github.com/c64scene-ar/llvm-6502.git synced 2025-01-26 07:34:06 +00:00

History

Evan Cheng 276b77e66c Teach spiller to unfold instructions which modref spill slot when a scratch

register is available and when it's profitable.

e.g.
     xorq  %r12<kill>, %r13
     addq  %rax, -184(%rbp)
     addq  %r13, -184(%rbp)
==>
     xorq  %r12<kill>, %r13
     movq  -184(%rbp), %r12
     addq  %rax, %r12
     addq  %r13, %r12
     movq  %r12, -184(%rbp)

Two more instructions, but fewer memory accesses. It can also open up
opportunities for more optimizations.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@69341 91177308-0d34-0410-b5e6-96231b3b80d8

2009-04-17 01:29:40 +00:00

Analysis

Handle a pointer type correctly in SCEVExpander::visitAddRecExpr.

2009-04-16 21:34:54 +00:00

Archive

…

AsmParser

Fix warning in .ll parser, detect and reject available_externally on function

2009-04-13 07:02:02 +00:00

Bitcode

Add a new "available_externally" linkage type. This is intended

2009-04-13 05:44:34 +00:00