[llvm-commits] [llvm-gcc-4.2] r79706 - /llvm-gcc-4.2/trunk/gcc/llvm-convert.cpp

[Eric Christopher]

Author: echristo
Date: Fri Aug 21 19:25:39 2009
New Revision: 79706

URL: http://llvm.org/viewvc/llvm-project?rev=79706&view=rev
Log:
The unwind and resume call is not an llvm intrinsic and therefore
needs a calling convention set on it for targets that have default
calling conventions - do that in the call to EmitUnwindBlock() or
else instcombine will likely delete the call later due to a
mismatch of calling convention.

Modified:
    llvm-gcc-4.2/trunk/gcc/llvm-convert.cpp

Modified: llvm-gcc-4.2/trunk/gcc/llvm-convert.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm-gcc-4.2/trunk/gcc/llvm-convert.cpp?rev=79706&r1=79705&r2=79706&view=diff

==============================================================================
--- llvm-gcc-4.2/trunk/gcc/llvm-convert.cpp (original)
+++ llvm-gcc-4.2/trunk/gcc/llvm-convert.cpp Fri Aug 21 19:25:39 2009
@@ -2159,7 +2159,21 @@
     // Fetch and store exception handler.
     Value *Arg = Builder.CreateLoad(ExceptionValue, "eh_ptr");
     assert(llvm_unwind_resume_libfunc && "no unwind resume function!");
+
+    // As we're emitting a naked call (not an expression) going through
+    // EmitCallOf would be wasteful and incorrect. Manually adjust
+    // the calling convention for this call here if necessary.
+#ifdef TARGET_ADJUST_LLVM_CC
+    tree fntype = TREE_TYPE(llvm_unwind_resume_libfunc);
+    CallingConv::ID CallingConvention = CallingConv::C;
+
+    TARGET_ADJUST_LLVM_CC(CallingConvention, fntype);
+    CallInst *Call = Builder.CreateCall(DECL_LLVM(llvm_unwind_resume_libfunc),
+					Arg);
+    Call->setCallingConv(CallingConvention);
+#else
     Builder.CreateCall(DECL_LLVM(llvm_unwind_resume_libfunc), Arg);
+#endif
     Builder.CreateUnreachable();
   }
 }