mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2024-12-21 00:32:23 +00:00
4fca01731a
Compile this:
%_2E_str_8 = external global [75 x sbyte]
implementation ; Functions:
declare int %printf(sbyte*, ...)
void %test()
%tmp.101 = call int (sbyte*, ...)* %printf( sbyte* getelementptr ([75 x sbyte]* %_2E_str_8, int 0, int 0) ) ; <int> [#uses=0]
unreachable
}
to this:
main_endif_2E_8:
save -96, %o6, %o6
sethi %hi(_2E_str_8), %l0
add %l0, %lo(_2E_str_8), %o0
call printf
nop
instead of this:
main_endif_2E_8:
save -96, %o6, %o6
sethi %hi(_2E_str_8), %l0
or %g0, %lo(_2E_str_8), %l1 ;; extra instruction
add %l1, %l0, %o0
call printf
nop
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25335 91177308-0d34-0410-b5e6-96231b3b80d8
|
||
|---|---|---|
| .. | ||
| .cvsignore | ||
| DelaySlotFiller.cpp | ||
| FPMover.cpp | ||
| Makefile | ||
| README.txt | ||
| SparcV8.h | ||
| SparcV8.td | ||
| SparcV8AsmPrinter.cpp | ||
| SparcV8InstrFormats.td | ||
| SparcV8InstrInfo.cpp | ||
| SparcV8InstrInfo.h | ||
| SparcV8InstrInfo.td | ||
| SparcV8ISelDAGToDAG.cpp | ||
| SparcV8ISelSimple.cpp | ||
| SparcV8RegisterInfo.cpp | ||
| SparcV8RegisterInfo.h | ||
| SparcV8RegisterInfo.td | ||
| SparcV8TargetMachine.cpp | ||
| SparcV8TargetMachine.h | ||
Meta TODO list: 1. Create a new DAG -> DAG instruction selector, by adding patterns to the instructions. 2. ??? 3. profit! To-do ----- * Keep the address of the constant pool in a register instead of forming its address all of the time. * We can fold small constant offsets into the %hi/%lo references to constant pool addresses as well.