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Upon Chris's suggestion, moved the #ifdef's to the generated C code.

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This makes LLVM and the generated C code more portable.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10377 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
John Criswell 2003-12-10 18:17:57 +00:00
parent ba4f3f6a41
commit 0284a42fd3
2 changed files with 10 additions and 16 deletions
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13
lib/Target/CBackend/CBackend.cpp
View File

@ -1087,20 +1087,17 @@ void CWriter::visitInvokeInst(InvokeInst &II) {
void CWriter::visitUnwindInst(UnwindInst &I) { void CWriter::visitUnwindInst(UnwindInst &I) {
// Determine the return size of write() based on the data model.
#ifdef _LP64
const char * writedecl = " extern signed long long write();\n";
#else
const char * writedecl = " extern write();\n";
#endif
// The unwind instructions causes a control flow transfer out of the current // The unwind instructions causes a control flow transfer out of the current
// function, unwinding the stack until a caller who used the invoke // function, unwinding the stack until a caller who used the invoke
// instruction is found. In this context, we code generated the invoke // instruction is found. In this context, we code generated the invoke
// instruction to add an entry to the top of the jmpbuf_list. Thus, here we // instruction to add an entry to the top of the jmpbuf_list. Thus, here we
// just have to longjmp to the specified handler. // just have to longjmp to the specified handler.
Out << " if (__llvm_jmpbuf_list == 0) { /* unwind */\n" Out << " if (__llvm_jmpbuf_list == 0) { /* unwind */\n"
<< writedecl << "#ifdef _LP64\n"
<< " extern signed long long write();\n"
<< "#else\n"
<< " extern write();\n"
<< "#endif\n"
<< " ((void (*)(int, void*, unsigned))write)(2,\n" << " ((void (*)(int, void*, unsigned))write)(2,\n"
<< " \"throw found with no handler!\\n\", 31); abort();\n" << " \"throw found with no handler!\\n\", 31); abort();\n"
<< " }\n" << " }\n"

13
lib/Target/CBackend/Writer.cpp
View File

@ -1087,20 +1087,17 @@ void CWriter::visitInvokeInst(InvokeInst &II) {
void CWriter::visitUnwindInst(UnwindInst &I) { void CWriter::visitUnwindInst(UnwindInst &I) {
// Determine the return size of write() based on the data model.
#ifdef _LP64
const char * writedecl = " extern signed long long write();\n";
#else
const char * writedecl = " extern write();\n";
#endif
// The unwind instructions causes a control flow transfer out of the current // The unwind instructions causes a control flow transfer out of the current
// function, unwinding the stack until a caller who used the invoke // function, unwinding the stack until a caller who used the invoke
// instruction is found. In this context, we code generated the invoke // instruction is found. In this context, we code generated the invoke
// instruction to add an entry to the top of the jmpbuf_list. Thus, here we // instruction to add an entry to the top of the jmpbuf_list. Thus, here we
// just have to longjmp to the specified handler. // just have to longjmp to the specified handler.
Out << " if (__llvm_jmpbuf_list == 0) { /* unwind */\n" Out << " if (__llvm_jmpbuf_list == 0) { /* unwind */\n"
<< writedecl << "#ifdef _LP64\n"
<< " extern signed long long write();\n"
<< "#else\n"
<< " extern write();\n"
<< "#endif\n"
<< " ((void (*)(int, void*, unsigned))write)(2,\n" << " ((void (*)(int, void*, unsigned))write)(2,\n"
<< " \"throw found with no handler!\\n\", 31); abort();\n" << " \"throw found with no handler!\\n\", 31); abort();\n"
<< " }\n" << " }\n"