[clang] [llvm] [X86] Support EGPR for inline assembly. (PR #92338)

[Freddy Ye via cfe-commits]

================
@@ -58255,6 +58281,22 @@ X86TargetLowering::getRegForInlineAsmConstraint(const 
TargetRegisterInfo *TRI,
       }
       break;
     }
+  } else if (Constraint.size() == 2 && Constraint[0] == 'j') {
+    switch (Constraint[1]) {
+    default:
+      break;
+    case 'R':
+      if (VT == MVT::i8 || VT == MVT::i1)
+        return std::make_pair(0U, &X86::GR8RegClass);
+      if (VT == MVT::i16)
+        return std::make_pair(0U, &X86::GR16RegClass);
+      if (VT == MVT::i32 || VT == MVT::f32 ||
+          (!VT.isVector() && !Subtarget.is64Bit()))
+        return std::make_pair(0U, &X86::GR32RegClass);
----------------
FreddyLeaf wrote:

addressed in 
[bf3a53c](https://github.com/llvm/llvm-project/pull/92338/commits/bf3a53c0b7fc1828572f771e4772d25062110dc0)

https://github.com/llvm/llvm-project/pull/92338
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