llvm dev - Apr 2013 - [LLVMdev] How to compile object C with clang into llvm IR?

Following came from tools/clang/test/CodeGenObjC/message-arrays.m. But I
don't know how to compile it at terminal command since no clang_cc1
executable file. Can some one help me? I am writing the llvm backend document
--http://jonathan2251.github.com/lbd/index.html now. I use "clang -c
hello.cpp -emit-llvm" to compile C++ but don't know how to compile
Object-C.

// RUN: %clang_cc1 -emit-llvm -o %t %s

void f0(id a) {
 // This should have an implicit cast
 [ a print: "hello" ];
}

@interface A
-(void) m: (int) arg0, ...;
@end

int f1(A *a) {
 // This should also get an implicit cast (for the vararg)
 [a m: 1, "test"];
}

Jonathan
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Look up --emit-llvm. I think it has to be used with -c.
On Apr 5, 2013 10:55 PM, "Jonathan" <gamma_chen at yahoo.com.tw>
wrote:
> Following came from tools/clang/test/CodeGenObjC/message-arrays.m. But I
> don't know how to compile it at terminal command since no clang_cc1
> executable file. Can some one help me? I am writing the llvm backend
> document --http://jonathan2251.github.com/lbd/index.html now. I use
> "clang -c hello.cpp -emit-llvm" to compile C++ but don't know
how to
> compile Object-C.
>
> // RUN: %clang_cc1 -emit-llvm -o %t %s
>
> void f0(id a) {
>  // This should have an implicit cast
>  [ a print: "hello" ];
> }
>
> @interface A
> -(void) m: (int) arg0, ...;
> @end
>
> int f1(A *a) {
>  // This should also get an implicit cast (for the vararg)
>  [a m: 1, "test"];
> }
>
> Jonathan
>
> _______________________________________________
> LLVM Developers mailing list
> LLVMdev at cs.uiuc.edu         http://llvm.cs.uiuc.edu
> http://lists.cs.uiuc.edu/mailman/listinfo/llvmdev
>
>
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I got the following compile error. Did the message-arrays.m can be compiled into
.bc? Or need include something for Object C language compile.

Jonathan

118-165-76-229:CodeGenObjC Jonathan$ pwd
/Users/Jonathan/llvm/release/src/tools/clang/test/CodeGenObjC
118-165-76-229:CodeGenObjC Jonathan$ clang -emit-llvm -o 1.ll -c
message-arrays.m
message-arrays.m:5:3: warning: instance method '-print:' not found
(return type
      defaults to 'id') [-Wobjc-method-access]
  [ a print: "hello" ];
  ^   ~~~~~
message-arrays.m:15:1: warning: control reaches end of non-void function
      [-Wreturn-type]
}
^
2 warnings generated.
118-165-76-229:CodeGenObjC Jonathan$ clang -emit-llvm -o 1.ll -c ivars.m
ivars.m:18:12: warning: class 'R' defined without specifying a base
class
      [-Wobjc-root-class]
@interface R {
           ^
ivars.m:18:13: note: add a super class to fix this problem
@interface R {
            ^
1 warning generated.

On 2013/4/6, at 上午11:05, Tyler Hardin <tghardin1 at catamount.wcu.edu>
wrote:
> Look up --emit-llvm. I think it has to be used with -c.
> 
> On Apr 5, 2013 10:55 PM, "Jonathan" <gamma_chen at
yahoo.com.tw> wrote:
> Following came from tools/clang/test/CodeGenObjC/message-arrays.m. But I
don't know how to compile it at terminal command since no clang_cc1
executable file. Can some one help me? I am writing the llvm backend document
--http://jonathan2251.github.com/lbd/index.html now. I use "clang -c
hello.cpp -emit-llvm" to compile C++ but don't know how to compile
Object-C.
> 
> // RUN: %clang_cc1 -emit-llvm -o %t %s
> 
> void f0(id a) {
>  // This should have an implicit cast
>  [ a print: "hello" ];
> }
> 
> @interface A
> -(void) m: (int) arg0, ...;
> @end
> 
> int f1(A *a) {
>  // This should also get an implicit cast (for the vararg)
>  [a m: 1, "test"];
> }
> 
> Jonathan
> 
> _______________________________________________
> LLVM Developers mailing list
> LLVMdev at cs.uiuc.edu         http://llvm.cs.uiuc.edu
> http://lists.cs.uiuc.edu/mailman/listinfo/llvmdev
> 
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