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-rw-r--r--contrib/llvm/lib/ExecutionEngine/Orc/OrcTargetSupport.cpp138
1 files changed, 0 insertions, 138 deletions
diff --git a/contrib/llvm/lib/ExecutionEngine/Orc/OrcTargetSupport.cpp b/contrib/llvm/lib/ExecutionEngine/Orc/OrcTargetSupport.cpp
deleted file mode 100644
index 258868a..0000000
--- a/contrib/llvm/lib/ExecutionEngine/Orc/OrcTargetSupport.cpp
+++ /dev/null
@@ -1,138 +0,0 @@
-#include "llvm/ADT/Triple.h"
-#include "llvm/ExecutionEngine/Orc/OrcTargetSupport.h"
-#include <array>
-
-using namespace llvm::orc;
-
-namespace {
-
-uint64_t executeCompileCallback(JITCompileCallbackManagerBase *JCBM,
- TargetAddress CallbackID) {
- return JCBM->executeCompileCallback(CallbackID);
-}
-
-}
-
-namespace llvm {
-namespace orc {
-
-const char* OrcX86_64::ResolverBlockName = "orc_resolver_block";
-
-void OrcX86_64::insertResolverBlock(
- Module &M, JITCompileCallbackManagerBase &JCBM) {
-
- // Trampoline code-sequence length, used to get trampoline address from return
- // address.
- const unsigned X86_64_TrampolineLength = 6;
-
- // List of x86-64 GPRs to save. Note - RBP saved separately below.
- std::array<const char *, 14> GPRs = {{
- "rax", "rbx", "rcx", "rdx",
- "rsi", "rdi", "r8", "r9",
- "r10", "r11", "r12", "r13",
- "r14", "r15"
- }};
-
- // Address of the executeCompileCallback function.
- uint64_t CallbackAddr =
- static_cast<uint64_t>(
- reinterpret_cast<uintptr_t>(executeCompileCallback));
-
- std::ostringstream AsmStream;
- Triple TT(M.getTargetTriple());
-
- // Switch to text section.
- if (TT.getOS() == Triple::Darwin)
- AsmStream << ".section __TEXT,__text,regular,pure_instructions\n"
- << ".align 4, 0x90\n";
- else
- AsmStream << ".text\n"
- << ".align 16, 0x90\n";
-
- // Bake in a pointer to the callback manager immediately before the
- // start of the resolver function.
- AsmStream << "jit_callback_manager_addr:\n"
- << " .quad " << &JCBM << "\n";
-
- // Start the resolver function.
- AsmStream << ResolverBlockName << ":\n"
- << " pushq %rbp\n"
- << " movq %rsp, %rbp\n";
-
- // Store the GPRs.
- for (const auto &GPR : GPRs)
- AsmStream << " pushq %" << GPR << "\n";
-
- // Store floating-point state with FXSAVE.
- // Note: We need to keep the stack 16-byte aligned, so if we've emitted an odd
- // number of 64-bit pushes so far (GPRs.size() plus 1 for RBP) then add
- // an extra 64 bits of padding to the FXSave area.
- unsigned Padding = (GPRs.size() + 1) % 2 ? 8 : 0;
- unsigned FXSaveSize = 512 + Padding;
- AsmStream << " subq $" << FXSaveSize << ", %rsp\n"
- << " fxsave64 (%rsp)\n"
-
- // Load callback manager address, compute trampoline address, call JIT.
- << " lea jit_callback_manager_addr(%rip), %rdi\n"
- << " movq (%rdi), %rdi\n"
- << " movq 0x8(%rbp), %rsi\n"
- << " subq $" << X86_64_TrampolineLength << ", %rsi\n"
- << " movabsq $" << CallbackAddr << ", %rax\n"
- << " callq *%rax\n"
-
- // Replace the return to the trampoline with the return address of the
- // compiled function body.
- << " movq %rax, 0x8(%rbp)\n"
-
- // Restore the floating point state.
- << " fxrstor64 (%rsp)\n"
- << " addq $" << FXSaveSize << ", %rsp\n";
-
- for (const auto &GPR : make_range(GPRs.rbegin(), GPRs.rend()))
- AsmStream << " popq %" << GPR << "\n";
-
- // Restore original RBP and return to compiled function body.
- AsmStream << " popq %rbp\n"
- << " retq\n";
-
- M.appendModuleInlineAsm(AsmStream.str());
-}
-
-OrcX86_64::LabelNameFtor
-OrcX86_64::insertCompileCallbackTrampolines(Module &M,
- TargetAddress ResolverBlockAddr,
- unsigned NumCalls,
- unsigned StartIndex) {
- const char *ResolverBlockPtrName = "Lorc_resolve_block_addr";
-
- std::ostringstream AsmStream;
- Triple TT(M.getTargetTriple());
-
- if (TT.getOS() == Triple::Darwin)
- AsmStream << ".section __TEXT,__text,regular,pure_instructions\n"
- << ".align 4, 0x90\n";
- else
- AsmStream << ".text\n"
- << ".align 16, 0x90\n";
-
- AsmStream << ResolverBlockPtrName << ":\n"
- << " .quad " << ResolverBlockAddr << "\n";
-
- auto GetLabelName =
- [=](unsigned I) {
- std::ostringstream LabelStream;
- LabelStream << "orc_jcc_" << (StartIndex + I);
- return LabelStream.str();
- };
-
- for (unsigned I = 0; I < NumCalls; ++I)
- AsmStream << GetLabelName(I) << ":\n"
- << " callq *" << ResolverBlockPtrName << "(%rip)\n";
-
- M.appendModuleInlineAsm(AsmStream.str());
-
- return GetLabelName;
-}
-
-} // End namespace orc.
-} // End namespace llvm.
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