[PATCH] D20080: [nvvm] Mark ldu and ldg intrinsics as IntrArgMemOnly.

[Justin Lebar via llvm-commits]

jlebar created this revision.
jlebar added a reviewer: rnk.
jlebar added subscribers: tra, llvm-commits, jholewinski.

Previously these intrinsics were marked as can-read any memory address.
Now they're marked as reading only the pointer they're passed.

http://reviews.llvm.org/D20080

Files:
  include/llvm/IR/IntrinsicsNVVM.td

Index: include/llvm/IR/IntrinsicsNVVM.td
===================================================================
--- include/llvm/IR/IntrinsicsNVVM.td
+++ include/llvm/IR/IntrinsicsNVVM.td
@@ -799,30 +799,30 @@
 // pointer's alignment.
 def int_nvvm_ldu_global_i : Intrinsic<[llvm_anyint_ty],
   [LLVMAnyPointerType<LLVMMatchType<0>>, llvm_i32_ty],
-  [IntrReadMem, NoCapture<0>],
+  [IntrReadMem, IntrArgMemOnly, IntrNoCapture<0>],
   "llvm.nvvm.ldu.global.i">;
 def int_nvvm_ldu_global_f : Intrinsic<[llvm_anyfloat_ty],
   [LLVMAnyPointerType<LLVMMatchType<0>>, llvm_i32_ty],
-  [IntrReadMem, NoCapture<0>],
+  [IntrReadMem, IntrArgMemOnly, NoCapture<0>],
   "llvm.nvvm.ldu.global.f">;
 def int_nvvm_ldu_global_p : Intrinsic<[llvm_anyptr_ty],
   [LLVMAnyPointerType<LLVMMatchType<0>>, llvm_i32_ty],
-  [IntrReadMem, NoCapture<0>],
+  [IntrReadMem, IntrArgMemOnly, NoCapture<0>],
   "llvm.nvvm.ldu.global.p">;
 
 // Generated within nvvm. Use for ldg on sm_35 or later.  Second arg is the
 // pointer's alignment.
 def int_nvvm_ldg_global_i : Intrinsic<[llvm_anyint_ty],
   [LLVMAnyPointerType<LLVMMatchType<0>>, llvm_i32_ty],
-  [IntrReadMem, NoCapture<0>],
+  [IntrReadMem, IntrArgMemOnly, NoCapture<0>],
   "llvm.nvvm.ldg.global.i">;
 def int_nvvm_ldg_global_f : Intrinsic<[llvm_anyfloat_ty],
   [LLVMAnyPointerType<LLVMMatchType<0>>, llvm_i32_ty],
-  [IntrReadMem, NoCapture<0>],
+  [IntrReadMem, IntrArgMemOnly, NoCapture<0>],
   "llvm.nvvm.ldg.global.f">;
 def int_nvvm_ldg_global_p : Intrinsic<[llvm_anyptr_ty],
   [LLVMAnyPointerType<LLVMMatchType<0>>, llvm_i32_ty],
-  [IntrReadMem, NoCapture<0>],
+  [IntrReadMem, IntrArgMemOnly, NoCapture<0>],
   "llvm.nvvm.ldg.global.p">;
 
 // Use for generic pointers


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