mirror of
https://github.com/c64scene-ar/llvm-6502.git
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111c228241
int %test(ulong *%tmp) {
%tmp = load ulong* %tmp ; <ulong> [#uses=1]
%tmp.mask = shr ulong %tmp, ubyte 50 ; <ulong> [#uses=1]
%tmp.mask = cast ulong %tmp.mask to ubyte
%tmp2 = and ubyte %tmp.mask, 3 ; <ubyte> [#uses=1]
%tmp2 = cast ubyte %tmp2 to int ; <int> [#uses=1]
ret int %tmp2
}
to:
_test:
movl 4(%esp), %eax
movl 4(%eax), %eax
shrl $18, %eax
andl $3, %eax
ret
instead of:
_test:
movl 4(%esp), %eax
movl 4(%eax), %eax
shrl $18, %eax
# TRUNCATE movb %al, %al
andb $3, %al
movzbl %al, %eax
ret
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30558 91177308-0d34-0410-b5e6-96231b3b80d8
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|---|---|---|
| .. | ||
| SelectionDAG | ||
| AsmPrinter.cpp | ||
| BranchFolding.cpp | ||
| DwarfWriter.cpp | ||
| ELFWriter.cpp | ||
| IntrinsicLowering.cpp | ||
| LiveInterval.cpp | ||
| LiveIntervalAnalysis.cpp | ||
| LiveVariables.cpp | ||
| LLVMTargetMachine.cpp | ||
| MachineBasicBlock.cpp | ||
| MachineDebugInfo.cpp | ||
| MachineFunction.cpp | ||
| MachineInstr.cpp | ||
| MachinePassRegistry.cpp | ||
| MachOWriter.cpp | ||
| Makefile | ||
| Passes.cpp | ||
| PHIElimination.cpp | ||
| PhysRegTracker.h | ||
| PrologEpilogInserter.cpp | ||
| RegAllocLinearScan.cpp | ||
| RegAllocLocal.cpp | ||
| RegAllocSimple.cpp | ||
| TwoAddressInstructionPass.cpp | ||
| UnreachableBlockElim.cpp | ||
| VirtRegMap.cpp | ||
| VirtRegMap.h | ||