![\"image.png\"](\"https://i.loli.net/2020/12/19/BK9ovEqadV8fnwm.png\"/)
\u5728\u77e5\u4e4e\u770b\u5230\u4e00\u4e2a\u5f88\u6709\u610f\u601d\u7684\u95ee\u9898\u3002Link
\n\u95ee\u9898\u539f\u6587\u5982\u4e0b\uff1a
\nLLVM \u5b9e\u73b0\u4e86\u6307\u4ee4\u8c03\u5ea6\uff0cCPU \u5b9e\u73b0\u4e71\u5e8f\u6267\u884c\uff0c\u5b83\u4eec\u529f\u80fd\u5b58\u5728\u90e8\u5206\u91cd\u590d\uff0c\u533a\u522b\u548c\u8054\u7cfb\u662f\u4ec0\u4e48\uff1f\u5982\u4f55\u534f\u540c\uff1f\nLLVM \u4e2d\u5b9e\u73b0\u7684\u6307\u4ee4\u8c03\u5ea6\u548c\u786c\u4ef6\u7684\u4e71\u5e8f\u6267\u884c\u90fd\u53ef\u4ee5\u89e3\u51b3\u6570\u636e\u4f9d\u8d56\u3001\u51b2\u7a81\u4f9d\u8d56\u3001\u63a7\u5236\u4f9d\u8d56\u7b49\u6307\u4ee4\u5e76\u884c\u95ee\u9898\u3002\u4e5f\u5c31\u662f\u8bf4\u5b83\u4eec\u7684\u529f\u80fd\u5e94\u8be5\u5b58\u5728\u4e00\u5b9a\u7684\u91cd\u590d\uff0c\u8bf7\u95ee\u5b83\u4eec\u533a\u522b\u548c\u8054\u7cfb\u662f\u4ec0\u4e48\uff1f
\n\u6709\u6ca1\u6709\u597d\u5927\u54e5\u56de\u7b54\u4e00\u4e0b\uff1f
\nOoO: Out of Order \uff0c\u4e71\u5e8f\u6267\u884c
\n", "date_published": "2024-12-04T04:18:58+00:00", "title": "\u6307\u4ee4\u8c03\u5ea6\u5728 LLVM \u4e0e OoO \u7684\u533a\u522b\u4e0e\u8054\u7cfb\uff1f", "id": "t/1094913" }, { "author": { "url": "member/iqoo", "name": "iqoo", "avatar": "https://cdn.v2ex.com/avatar/91b9/d36b/555363_large.png?m=1711959553" }, "url": "t/959999", "date_modified": "2025-01-06T16:49:34+00:00", "content_html": "\u7f16\u8bd1 WebAssembly \u65f6\u53d1\u73b0 Mac \u81ea\u5e26\u7684 clang \u7f16\u8bd1\u5668\u65e0\u6cd5\u8bbe\u7f6e --target=wasm32 \u9009\u9879\uff0c\u800c\u6807\u51c6\u7684 clang \u53ef\u4ee5\u3002
\n\u4e8e\u662f\u7f16\u8bd1\u4e86\u6700\u65b0\u7684 clang \u548c lld \u5e76\u5b89\u88c5\uff08\u4e4b\u524d\u5df2\u4e0b\u8f7d\u8fc7 LLVM \u7684 git \u4ed3\u5e93\uff0c\u56e0\u6b64\u76f4\u63a5\u7f16\u8bd1\uff09:
\ncmake -DCMAKE_BUILD_TYPE=Release -DLLVM_ENABLE_PROJECTS=\"clang;lld\" -DCMAKE_INSTALL_PREFIX=/usr/local ../llvm\n\nmake install\n\u5b89\u88c5\u4f4d\u7f6e\u4e3a /usr/local/bin/clang \uff0c\u7cfb\u7edf\u9ed8\u8ba4\u4f7f\u7528\u8be5\u7248\u672c\u3002\uff08\u539f\u5148\u7684 clang \u4f4d\u4e8e /usr/bin/clang \uff0c\u53ea\u6709 160KB \u3002 \u771f\u6b63\u7684 clang \u5e94\u8be5\u4f4d\u4e8e /Library/Developer/CommandLineTools/usr/bin/clang \uff0c\u6709 200MB+\uff09
\n\u867d\u7136\u65b0\u7248\u672c\u7684 clang \u652f\u6301 wasm32 \u9009\u9879\uff0c\u4f46\u7f16\u8bd1\u51fa\u73b0\u4e00\u5927\u5806\u95ee\u9898\uff0c\u6240\u6709\u5934\u6587\u4ef6\u90fd\u627e\u4e0d\u5230\u4e86~
\n\u5373\u4f7f\u7f16\u8bd1\u53c2\u6570\u91cc\u52a0\u4e0a\u7cfb\u7edf\u81ea\u5e26\u7684\u5934\u6587\u4ef6\u8def\u5f84 -I /Library/Developer/CommandLineTools/SDKs/MacOSX13.0.sdk/usr/include/c++/v1 \u4ecd\u7136\u4e00\u5806\u9519\u8bef\uff0c\u4f8b\u5982 error: \"No thread API\"\u3001fatal error: 'string.h' file not found \u7b49\u7b49\u3002
\u6216\u8005\u4f7f\u7528 LLVM \u63d0\u4f9b\u7684 C \u6587\u4ef6 -I llvm-project/libcxx/include \u4e5f\u51fa\u73b0\u4e00\u5806\u9519\u8bef\u3002
\u8fd9\u662f\u8e29\u5230\u4ec0\u4e48\u5751\u4e86\u5417\uff1f
\n", "date_published": "2023-07-26T11:59:32+00:00", "title": "\u4f7f\u7528 LLVM \u7684 clang \u66ff\u6362\u82f9\u679c\u81ea\u5e26\u7684\u6709\u95ee\u9898\u5417", "id": "t/959999" }, { "author": { "url": "member/therlf", "name": "therlf", "avatar": "https://cdn.v2ex.com/avatar/bc62/6507/546714_large.png?m=1660530505" }, "url": "t/872906", "date_modified": "2025-01-06T16:49:41+00:00", "content_html": "\u6700\u8fd1\u5728\u770b LLVM \u7684 toturial : Kaleidoscope: Code generation to LLVM IR\uff0c\u91cc\u9762\u7684\u4ee3\u7801\u628a\u6240\u6709\u4e1c\u897f\u90fd\u5199\u5230\u4e00\u4e2a\u6e90\u6587\u4ef6\u4e86\uff0c\u800c\u6211\u9009\u62e9\u5c06\u5b83\u4eec\u5206\u4e3a lexer \u3001parser \u3001ast \u5206\u522b\u5199\u5230\u4e0d\u540c\u7684\u4ee3\u7801\u91cc\uff0c\u7136\u540e\u5206\u522b\u7f16\u8bd1\u6700\u540e\u94fe\u63a5\u5230\u4e00\u5757\u3002
\n\u8fd9\u662f\u6211\u7684\u7f16\u8bd1\u6307\u4ee4\uff1a
\nc++ clang++ -g -O3 -I /home/therlf/LLVM/include -I ./ -I /home/therlf/LLVM_Temp/llvm/include `llvm-config --cxxflags --ldflags --system-libs --libs all` ast/CallExprAST.o ast/NumberExprAST.o ast/PrototypeAST.o ast/FunctionAST.o ast/BinaryExprAST.o ast/VariableExprAST.o lexer/lexer.o logger/logger.o parser/parser.o main.cpp -o main
\u7136\u540e\u5c31\u51fa\u73b0\u4e86\u4e00\u7cfb\u5217\u7684undefined error\uff0c\u622a\u53d6\u4e00\u4e9b\u5982\u4e0b\uff1a
\n\n\n/usr/bin/ld: /tmp/main-2b71c8.o:(.data+0x0): undefined reference to
\nllvm::DisableABIBreakingChecks /home/therlf/MyProject/tmp/ast/CallExprAST.cpp:6: undefined reference tollvm::Module::getFunction(llvm::StringRef) const'\n/home/therlf/LLVM/include/llvm/IR/InstrTypes.h:1112: undefined reference tollvm::Instruction::Instruction(llvm::Type*, unsigned int, llvm::Use*, unsigned int, llvm::Instruction*)' /usr/bin/ld: /home/therlf/LLVM/include/llvm/IR/InstrTypes.h:977: undefined reference tollvm::VectorType::get(llvm::Type*, llvm::ElementCount)'
\u6211\u4e00\u5f00\u59cb\u4ee5\u4e3a\u662f Including path \u7684\u95ee\u9898\uff0c\u4f46\u662f\u6211\u7f16\u8bd1 tutorial \u90a3\u4e2a\u6240\u6709\u4e1c\u897f\u90fd\u5728\u4e00\u5757\u7684\u4ee3\u7801\u662f\u6ca1\u95ee\u9898\u7684\uff0c\u81ea\u5df1\u7f16\u8bd1\u5404\u4e2a\u6a21\u5757\u4e5f\u662f\u6ca1\u95ee\u9898\u7684\uff0c\u5c31\u662f\u5728\u4e00\u8d77\u7f16\u8bd1\u94fe\u63a5\u4e86\u624d\u4f1a\u6709\u95ee\u9898\uff0c\u663e\u793a\u5f88\u591a\u5f88\u591a\"undefined error\"\u3002
\n\u6240\u4ee5\u6211\u8ba4\u4e3a\u662f\u94fe\u63a5\u7684\u95ee\u9898\uff0c\u5230\u7f51\u4e0a\u641c\u4e00\u4e9b\u535a\u4e3b\u8bf4\u4f60\u5fc5\u987b\u4f7f\u7528lld\u6765\u94fe\u63a5\uff0c\u800c\u4e0d\u662fld\uff0c\u4f46\u662f\u4e4b\u524d LLVM \u6ca1\u6709 lld \u7684\u65f6\u5019\u4e5f\u662f\u7528 ld \u6765\u94fe\u63a5\u7684\uff0c\u6240\u4ee5\u611f\u89c9\u4f7f\u7528 ld \u5e94\u8be5\u4e5f\u53ef\u4ee5\uff0c\u800c\u4e14\u6211\u7f16\u8bd1\u5b8c LLVM \u540e\u6ca1\u6709 lld \u8fd9\u4e2a\u5de5\u5177\u3002
\n\u6211\u7684\u64cd\u4f5c\u7cfb\u7edf\u662fUbuntu 20.04\uff0cLLVM \u7248\u672c\u4e3a10.0.0svn\u3002\n\u6211\u7684 Makefile \u5982\u4e0b\uff1a
\nHEADERS = $(shell find ast kaleidoscope lexer logger parser -name '*.h')\nOBJ = ${SOURCES:.cpp=.o}\n\nCC = clang++\nCFLAGS = -g -O3 -I /home/therlf/LLVM/include -I ./ -I /home/therlf/LLVM_Temp/llvm/include\nLLVMFLAGS = `llvm-config --cxxflags --ldflags --system-libs --libs all`\n\n.PHONY: main\n\nmain: main.cpp ${OBJ}\n ${CC} ${CFLAGS} ${LLVMFLAGS} ${OBJ} $< -o $@\n\nclean:\n rm -r ${OBJ}\n\n%.o: %.cpp ${HEADERS}\n ${CC} ${CFLAGS} ${LLVMFLAGS} -c $< -o $@ ```\n\n\n\u4e07\u5206\u611f\u8c22\u60a8\u7684\u5e2e\u52a9\uff01\u6211\u7684\u6700\u7ec8\u76ee\u6807\u662f\u521b\u9020\u4e00\u95e8\u7f16\u7a0b\u8bed\u8a00
\n\u56e0\u4e3a\u6211\u770b\u5230 wiki \u4e0a\u8bf4\uff0cllvm \u7528 c++\u5199\u7684\uff0c \u6240\u4ee5\u6211\u731c\u60f3\uff0c\u5982\u679c\u6211\u5b66\u4f1a\u4e86 c++\uff0c \u5c06\u6765\u7528 llvm \u505a\u4e1c\u897f\uff08\u5f00\u53d1\u7f16\u7a0b\u8bed\u8a00\uff09\uff0c \u5e94\u8be5\u4f1a\u5bb9\u6613\u5f88\u591a
\n\u8bf7\u95ee\u6211\u7684\u89c2\u70b9\u5bf9\u5417\uff1f
\n\u5404\u4f4d\u524d\u8f88\u80fd\u7ed9\u70b9\u610f\u89c1\u5417\uff1f
\n", "date_published": "2021-01-17T06:34:51+00:00", "title": "\u60f3\u66f4\u719f\u6089 LLVM\uff0c\u662f\u4e0d\u662f\u8981\u5b66\u4f1a c++\uff1f\u8fd8\u8981\u5b66\u5176\u4ed6\u7684\u5417\uff1f", "id": "t/745642" }, { "author": { "url": "member/find456789", "name": "find456789", "avatar": "https://cdn.v2ex.com/gravatar/d467f3b1603e9ceb12ff120c3a295919?s=73&d=retro" }, "url": "t/737666", "date_modified": "2025-01-06T16:50:09+00:00", "content_html": "\u6211\u4e00\u5f00\u59cb\u9009\u62e9\u5b66 llvm\uff0c\u662f\u53d1\u73b0 llvm \u53ef\u4ee5\u628a\u4ee3\u7801\u7f16\u8bd1\u6210\u5404\u79cd\u5e73\u53f0\u4e0a\u7684\u4e8c\u8fdb\u5236\uff0cllvm ir \u53ef\u4ee5\u8de8\u5e73\u53f0\uff0c\u6211\u5c31\u60f3\u7740\uff0c\u628a\u81ea\u5df1\u7684\u4ee3\u7801 \u8f6c\u6362\u4e3a llvm ir \u5c31\u53ef\u4ee5\u4e86
\nllvm ir \u91cc\u9ed8\u8ba4\u6709 \u52a0\u6cd5\u548c\u51cf\u6cd5\u7684\u6307\u4ee4
\n\u6bd4\u5982\u52a0\u6cd5\uff1a
\n; ModuleID = \"ttt\"\ntarget triple = \"unknown-unknown-unknown\"\ntarget datalayout = \"\"\n\ndefine double @\"fpadd\"(double %\".1\", double %\".2\") \n{\nentry:\n %\"res\" = fadd double %\".1\", %\".2\"\n ret double %\"res\"\n}\n\u6253\u5370\u529f\u80fd\uff0c\u6211 \u95f4\u63a5\u8c03\u7528\u4e86 c \u8bed\u8a00\u7684 printf \uff08\u6211\u770b\u5230\u7f51\u4e0a\u5176\u4ed6\u4eba\u4e5f\u662f\u5982\u6b64\u7684\uff0c\u6211\u5c31\u6284\u6765\u4e86\uff09\uff1a
\n; ModuleID = \"\"\ntarget triple = \"unknown-unknown-unknown\"\ntarget datalayout = \"\"\n\ndefine i32 @\"main\"() \n{\nmain.entry:\n %\".2\" = getelementptr inbounds [5 x i8], [5 x i8]* @\".str0\", i32 0, i32 0\n %\".3\" = call i32 (i8*, ...) @\"printf\"(i8* %\".2\")\n ret i32 0\n}\n\ndeclare i32 @\"printf\"(i8* %\".1\", ...) \n\n@\".str0\" = constant [5 x i8] c\"1111\\00\"\n\u5047\u5982\u6211\u8981\u8bfb\u53d6\u786c\u76d8\u91cc\u7684\u6587\u4ef6\uff0c\u8bf7\u6c42\u67d0\u4e2a\u7f51\u5740\uff0c \u662f\u4e0d\u662f\u65e0\u6cd5\u57fa\u4e8e llvm ir \u6765\u5b9e\u73b0\uff0c\u53ea\u80fd\u60f3\u529e\u6cd5 \u95f4\u63a5\u8c03\u7528 c \u8bed\u8a00\u7684\u63a5\u53e3\uff1f
\n\u53ef\u662f\u8fd9\u6837\u7684\u8bdd\uff0c\u90a3 llvm ir \u5bf9\u4e8e\u6211\u5c31\u6ca1\u6709\u5b58\u5728\u7684\u4ef7\u503c\u4e86\uff0c \u90a3\u6211\u4e3a\u4ec0\u4e48\u4e0d\u76f4\u63a5\u7528 c \u8bed\u8a00\u5f00\u53d1\u4e00\u95e8\u8bed\u8a00\uff0c\u7c7b\u4f3c python \u57fa\u4e8e c \u8bed\u8a00\u90a3\u6837\uff1f \u4e0d\u662f\u66f4\u7b80\u5355\u5417
\n\u6709\u5927\u54e5\u80fd\u89e3\u91ca\u4e00\u4e0b\u5417\uff1f
\n\u8c22\u8c22
\n", "date_published": "2020-12-21T16:28:14+00:00", "title": "\u6211\u7528 llvm \u5b9e\u73b0\u4e86 bb \u8bed\u8a00\u7684\u52a0\u6cd5\u548c\u51cf\u6cd5\uff0c\u4e5f\u5957\u5a03\u7684\u5b9e\u73b0\u4e86\u6253\u5370\u529f\u80fd\uff0c\u90a3\u600e\u4e48\u5b9e\u73b0\u66f4\u9ad8\u7ea7\u7684\uff0c\u5982 http \u8bf7\u6c42\u529f\u80fd\u5462\uff0c\u8be5\u600e\u4e48\u5957\u5a03\u5462\uff1f\u5957 c \u8bed\u8a00\u5417", "id": "t/737666" }, { "author": { "url": "member/find456789", "name": "find456789", "avatar": "https://cdn.v2ex.com/gravatar/d467f3b1603e9ceb12ff120c3a295919?s=73&d=retro" }, "url": "t/737049", "date_modified": "2025-01-06T16:49:05+00:00", "content_html": "\u6211\u7684\u7406\u89e3\u662f\uff0cllvm ir \u91cc\u7684\u8bed\u6cd5\uff0c\u5e94\u8be5\u4e5f\u7c7b\u4f3c\u4e00\u95e8\u7f16\u7a0b\u8bed\u8a00\uff0c\u4f46\u8fd9\u4e2a\u8bed\u8a00\u662f\u9488\u5bf9\u5927\u90e8\u5206\u786c\u4ef6\u5e73\u53f0\u901a\u7528\u7684
\n\u6211\u53ea\u8981\u628a\u6211\u7684\u7f16\u7a0b\u8bed\u8a00\uff0c\u7ffb\u8bd1\u6210 llvm ir \u91cc\u7684\u8bed\u8a00\uff0c \u5c31\u53ef\u4ee5\u5b9e\u73b0\u4e00\u95e8\u53ef\u4ee5\u5728\u5927\u591a\u6570\u5e73\u53f0\u7f16\u8bd1\u7684\u8bed\u8a00\u4e86
\n\u6240\u4ee5\uff0c\u5728\u6211\u7684\u8bed\u8a00\u91cc\uff0c\u6211\u8981\u5b9e\u73b0 print(\"hello world\"), \u90a3\u6211\u5c31\u8981\u638c\u63e1 llvm ir \u91cc\uff0c\u600e\u4e48\u5b9e\u73b0 \u6253\u5370 hello word,
\n\u5982\u679c\u6211\u8981\u5b9e\u73b0 \u5b9a\u4e49\u4e00\u4e2a\u51fd\u6570\u7684\u529f\u80fd\uff0c \u5c31\u8981\u638c\u63e1 \u7528 llvm ir \u8bed\u8a00\u5b9a\u4e49\u51fd\u6570\u7684\u65b9\u6cd5
\n\u53ea\u6709\u638c\u63e1\u4e86 llvm ir \u8bed\u8a00\uff0c \u624d\u80fd\u5b9e\u73b0\u8fd9\u4e2a\u7ffb\u8bd1\u7684\u8fc7\u7a0b
\n\u8bf7\u95ee\u6211\u7684\u7406\u89e3\u5bf9\u5417\uff1f \u6211\u5e94\u8be5\u600e\u4e48\u529e
\n\u4e0b\u56fe\u662f\u6211\u53d1\u73b0\u7684 llvm ir \u7684\u8bed\u8a00
\n\u5982\u56fe
\n
\u6700\u8fd1\u9047\u5230\u4e00\u4e2a\u95ee\u9898\uff0c\u5c31\u662f\u9700\u8981\u4ece\u7f16\u8bd1\u597d\u7684 ELF \u91cc\u63d0\u53d6\u51fa\u7f16\u8bd1\u65f6\u7684\u53c2\u6570\uff0c\u6bd4\u5982 Wall\uff0cWerror \u4e00\u7c7b\u7684\u3002GCC \u4e0b\u5f88\u5bb9\u6613\uff0c\u6709\u4e00\u4e2a section \u53eb.GCC.command.line\u3002\u4f46\u662f Clang \u7f16\u8bd1\u51fa\u7684 ELF \u91cc\u6ca1\u6709\u7c7b\u4f3c\u7684 section \u3002
\u8bf7\u95ee\u54ea\u4f4d\u6709\u70b9\u601d\u8def\uff1f\u6211\u5e94\u8be5\u600e\u4e48\u53bb\u627e\u3002\u8c22\u8c22
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\n\u90ae\u4ef6\u5217\u8868\uff1a
\nhttp://lists.llvm.org/pipermail/llvm-announce/2017-September/000075.html
\n\u4e0b\u8f7d\u5730\u5740\uff1a
\nhttp://releases.llvm.org/download.html#5.0.0
\n\u5982\u679c\u8981\u5728 Windows \u4e0a\u6784\u5efa LLVM/Clang \u53ef\u4ee5\u4f7f\u7528 clangbuilder.
\nclangbuilder: https://github.com/fstudio/clangbuilder/
\n![\"\"](\"https://github.com/fstudio/clangbuilder/raw/master/docs/images/visualcpptools.png\")
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