mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2024-12-25 14:32:53 +00:00
a92ff91a96
memsets. This is still missing one important validity check, but this is enough
to compile stuff like this:
void test0(std::vector<char> &X) {
for (std::vector<char>::iterator I = X.begin(), E = X.end(); I != E; ++I)
*I = 0;
}
void test1(std::vector<int> &X) {
for (long i = 0, e = X.size(); i != e; ++i)
X[i] = 0x01010101;
}
With:
$ clang t.cpp -S -o - -O2 -emit-llvm | opt -loop-idiom | opt -O3 | llc
to:
__Z5test0RSt6vectorIcSaIcEE: ## @_Z5test0RSt6vectorIcSaIcEE
## BB#0: ## %entry
subq $8, %rsp
movq (%rdi), %rax
movq 8(%rdi), %rsi
cmpq %rsi, %rax
je LBB0_2
## BB#1: ## %bb.nph
subq %rax, %rsi
movq %rax, %rdi
callq ___bzero
LBB0_2: ## %for.end
addq $8, %rsp
ret
...
__Z5test1RSt6vectorIiSaIiEE: ## @_Z5test1RSt6vectorIiSaIiEE
## BB#0: ## %entry
subq $8, %rsp
movq (%rdi), %rax
movq 8(%rdi), %rdx
subq %rax, %rdx
cmpq $4, %rdx
jb LBB1_2
## BB#1: ## %for.body.preheader
andq $-4, %rdx
movl $1, %esi
movq %rax, %rdi
callq _memset
LBB1_2: ## %for.end
addq $8, %rsp
ret
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122573 91177308-0d34-0410-b5e6-96231b3b80d8
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| .. | ||
| ADT | ||
| Analysis | ||
| Assembly | ||
| Bitcode | ||
| CodeGen | ||
| CompilerDriver | ||
| Config | ||
| ExecutionEngine | ||
| MC | ||
| Object | ||
| Support | ||
| Target | ||
| Transforms | ||
| AbstractTypeUser.h | ||
| Argument.h | ||
| Attributes.h | ||
| AutoUpgrade.h | ||
| BasicBlock.h | ||
| CallGraphSCCPass.h | ||
| CallingConv.h | ||
| CMakeLists.txt | ||
| Constant.h | ||
| Constants.h | ||
| DerivedTypes.h | ||
| Function.h | ||
| GlobalAlias.h | ||
| GlobalValue.h | ||
| GlobalVariable.h | ||
| GVMaterializer.h | ||
| InitializePasses.h | ||
| InlineAsm.h | ||
| InstrTypes.h | ||
| Instruction.def | ||
| Instruction.h | ||
| Instructions.h | ||
| IntrinsicInst.h | ||
| Intrinsics.h | ||
| Intrinsics.td | ||
| IntrinsicsAlpha.td | ||
| IntrinsicsARM.td | ||
| IntrinsicsCellSPU.td | ||
| IntrinsicsPowerPC.td | ||
| IntrinsicsX86.td | ||
| IntrinsicsXCore.td | ||
| LinkAllPasses.h | ||
| LinkAllVMCore.h | ||
| Linker.h | ||
| LLVMContext.h | ||
| Metadata.h | ||
| Module.h | ||
| OperandTraits.h | ||
| Operator.h | ||
| Pass.h | ||
| PassAnalysisSupport.h | ||
| PassManager.h | ||
| PassManagers.h | ||
| PassRegistry.h | ||
| PassSupport.h | ||
| SymbolTableListTraits.h | ||
| Type.h | ||
| TypeSymbolTable.h | ||
| Use.h | ||
| User.h | ||
| Value.h | ||
| ValueSymbolTable.h | ||