[PATCH] D62896: [X86] Add missing properties on llvm.x86.sse.{st,ld}mxcsr

[Clement Courbet via Phabricator via llvm-commits]

courbet created this revision.
courbet added reviewers: craig.topper, RKSimon.
Herald added a project: LLVM.

llvm.x86.sse.stmxcsr only writes to memory.
llvm.x86.sse.ldmxcsr only reads from memory, amd might generate an FPE.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D62896

Files:
  llvm/include/llvm/IR/IntrinsicsX86.td


Index: llvm/include/llvm/IR/IntrinsicsX86.td
===================================================================
--- llvm/include/llvm/IR/IntrinsicsX86.td
+++ llvm/include/llvm/IR/IntrinsicsX86.td
@@ -277,9 +277,9 @@
 // Control register.
 let TargetPrefix = "x86" in {  // All intrinsics start with "llvm.x86.".
   def int_x86_sse_stmxcsr :
-              Intrinsic<[], [llvm_ptr_ty], []>;
+              Intrinsic<[], [llvm_ptr_ty], [IntrWriteMem]>;
   def int_x86_sse_ldmxcsr :
-              Intrinsic<[], [llvm_ptr_ty], []>;
+              Intrinsic<[], [llvm_ptr_ty], [IntrReadMem, IntrHasSideEffects]>;
 }
 
 // Misc.


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