For inline asm:

- recognize string "{memory}" in the MI generation
- mark as mayload/maystore when there's a memory clobber constraint.

PR14859.

Patch by Krzysztof Parzyszek

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@172228 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/MachineInstr.cpp b/lib/CodeGen/MachineInstr.cpp
index df82a17..8f7c5fd 100644
--- a/lib/CodeGen/MachineInstr.cpp
+++ b/lib/CodeGen/MachineInstr.cpp
@@ -1476,10 +1476,14 @@
     OS << " ";
     getOperand(InlineAsm::MIOp_AsmString).print(OS, TM);
 
-    // Print HasSideEffects, IsAlignStack
+    // Print HasSideEffects, MayLoad, MayStore, IsAlignStack
     unsigned ExtraInfo = getOperand(InlineAsm::MIOp_ExtraInfo).getImm();
     if (ExtraInfo & InlineAsm::Extra_HasSideEffects)
       OS << " [sideeffect]";
+    if (ExtraInfo & InlineAsm::Extra_MayLoad)
+      OS << " [mayload]";
+    if (ExtraInfo & InlineAsm::Extra_MayStore)
+      OS << " [maystore]";
     if (ExtraInfo & InlineAsm::Extra_IsAlignStack)
       OS << " [alignstack]";
     if (getInlineAsmDialect() == InlineAsm::AD_ATT)