mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2025-03-04 21:31:03 +00:00
0f65cad57f
getRegClassForInlineAsmConstraint to being handled by
getRegForInlineAsmConstraint. This allows us to let the llvm register allocator
allocate, which gives us better code. For example, X86/2007-01-29-InlineAsm-ir.ll
used to compile to:
_run_init_process:
subl $4, %esp
movl %ebx, (%esp)
xorl %ebx, %ebx
movl $11, %eax
movl %ebx, %ecx
movl %ebx, %edx
# InlineAsm Start
push %ebx ; movl %ebx,%ebx ; int $0x80 ; pop %ebx
# InlineAsm End
Now we get:
_run_init_process:
xorl %ecx, %ecx
movl $11, %eax
movl %ecx, %edx
# InlineAsm Start
push %ebx ; movl %ecx,%ebx ; int $0x80 ; pop %ebx
# InlineAsm End
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35804 91177308-0d34-0410-b5e6-96231b3b80d8
Low Level Virtual Machine (LLVM) ================================ This directory and its subdirectories contain source code for the Low Level Virtual Machine, a toolkit for the construction of highly optimized compilers, optimizers, and runtime environments. LLVM is open source software. You may freely distribute it under the terms of the license agreement found in LICENSE.txt. Please see the HTML documentation provided in docs/index.html for further assistance with LLVM.