Mark llvm.stacksave as only reading memory, this fixes

Regression/Transforms/InstCombine/stacksaverestore.ll

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26715 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/include/llvm/Intrinsics.td b/include/llvm/Intrinsics.td
index dd716a80efe18861a2926577daaccf7579f2dc9c..aa48332294032e8f838cc25633a7cbe8ff7bc91c 100644 (file)
--- a/include/llvm/Intrinsics.td
+++ b/include/llvm/Intrinsics.td
@@ -112,7 +112,7 @@ def int_gcwrite : Intrinsic<[llvm_void_ty, llvm_ptr_ty, llvm_ptrptr_ty],
 //  
 def int_returnaddress : Intrinsic<[llvm_ptr_ty, llvm_uint_ty], [InstrNoMem]>;
 def int_frameaddress  : Intrinsic<[llvm_ptr_ty, llvm_uint_ty], [InstrNoMem]>;
-def int_stacksave     : Intrinsic<[llvm_ptr_ty]>;
+def int_stacksave     : Intrinsic<[llvm_ptr_ty], [IntrReadMem]>;
 def int_stackrestore  : Intrinsic<[llvm_void_ty, llvm_ptr_ty]>;
 def int_prefetch      : Intrinsic<[llvm_void_ty, llvm_ptr_ty, 
                                    llvm_uint_ty, llvm_uint_ty]>;