mirror of
https://github.com/c64scene-ar/llvm-6502.git
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5a8441ea3f
the target natively supports. This eliminates some special-case code from
the x86 backend and generates better code as well.
For an i8 to f64 conversion, before & after:
_x87 before:
subl $2, %esp
movb 6(%esp), %al
movsbw %al, %ax
movw %ax, (%esp)
filds (%esp)
addl $2, %esp
ret
_x87 after:
subl $2, %esp
movsbw 6(%esp), %ax
movw %ax, (%esp)
filds (%esp)
addl $2, %esp
ret
_sse before:
subl $12, %esp
movb 16(%esp), %al
movsbl %al, %eax
cvtsi2sd %eax, %xmm0
addl $12, %esp
ret
_sse after:
subl $12, %esp
movsbl 16(%esp), %eax
cvtsi2sd %eax, %xmm0
addl $12, %esp
ret
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22452 91177308-0d34-0410-b5e6-96231b3b80d8
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|---|---|---|
| .. | ||
| Alpha | ||
| CBackend | ||
| IA64 | ||
| PowerPC | ||
| Skeleton | ||
| Sparc | ||
| SparcV8 | ||
| SparcV9 | ||
| X86 | ||
| Makefile | ||
| MRegisterInfo.cpp | ||
| Target.td | ||
| TargetData.cpp | ||
| TargetFrameInfo.cpp | ||
| TargetInstrInfo.cpp | ||
| TargetMachine.cpp | ||
| TargetMachineRegistry.cpp | ||
| TargetSchedInfo.cpp | ||
| TargetSubtarget.cpp | ||