Author: emmettneyman Date: Mon Aug 6 16:11:38 2018 New Revision: 339080 URL: http://llvm.org/viewvc/llvm-project?rev=339080&view=rev Log: Changed how LLVM IR was generated to increase vectorization
Summary: Changed the structure of the generated IR to make it easier to vectorize Reviewers: morehouse, kcc Reviewed By: morehouse Subscribers: cfe-commits, llvm-commits Differential Revision: https://reviews.llvm.org/D50342 Modified: cfe/trunk/tools/clang-fuzzer/proto-to-llvm/loop_proto_to_llvm.cpp Modified: cfe/trunk/tools/clang-fuzzer/proto-to-llvm/loop_proto_to_llvm.cpp URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/tools/clang-fuzzer/proto-to-llvm/loop_proto_to_llvm.cpp?rev=339080&r1=339079&r2=339080&view=diff ============================================================================== --- cfe/trunk/tools/clang-fuzzer/proto-to-llvm/loop_proto_to_llvm.cpp (original) +++ cfe/trunk/tools/clang-fuzzer/proto-to-llvm/loop_proto_to_llvm.cpp Mon Aug 6 16:11:38 2018 @@ -53,7 +53,7 @@ std::string VarRefToString(std::ostream break; } std::string ptr_var = get_var(); - os << ptr_var << " = getelementptr i32, i32* " << arr << ", i64 %ct\n"; + os << ptr_var << " = getelementptr inbounds i32, i32* " << arr << ", i64 %ct\n"; return ptr_var; } std::string RvalueToString(std::ostream &os, const Rvalue &x) { @@ -122,21 +122,20 @@ std::ostream &operator<<(std::ostream &o return os; } std::ostream &operator<<(std::ostream &os, const LoopFunction &x) { - return os << "define void @foo(i32* %a, i32* %b, i32* noalias %c, i64 %s) {\n" - << "%i = alloca i64\n" - << "store i64 0, i64* %i\n" - << "br label %loop\n\n" + return os << "target triple = \"x86_64-unknown-linux-gnu\"\n" + << "define void @foo(i32* %a, i32* %b, i32* %c, i64 %s) {\n" + << "%1 = icmp sgt i64 %s, 0\n" + << "br i1 %1, label %start, label %end\n" + << "start:\n" + << "br label %loop\n" + << "end:\n" + << "ret void\n" << "loop:\n" - << "%ct = load i64, i64* %i\n" - << "%comp = icmp eq i64 %ct, %s\n" - << "br i1 %comp, label %endloop, label %body\n\n" - << "body:\n" + << " %ct = phi i64 [ %ctnew, %loop ], [ 0, %start ]\n" << x.statements() - << "%z = add i64 1, %ct\n" - << "store i64 %z, i64* %i\n" - << "br label %loop\n\n" - << "endloop:\n" - << "ret void\n}\n"; + << "%ctnew = add i64 %ct, 1\n" + << "%j = icmp eq i64 %ctnew, %s\n" + << "br i1 %j, label %end, label %loop\n}\n"; } // --------------------------------- _______________________________________________ cfe-commits mailing list cfe-commits@lists.llvm.org http://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits
