[Mlir-commits] [llvm] [mlir] [DebugInfo] Add symbolic branches to DIExpression (PR #210850)

[Aman LaChapelle]

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@@ -37,6 +37,27 @@ using namespace llvm;
 
 #define DEBUG_TYPE "dwarfdebug"
 
+static dwarf::Form getDataForm(unsigned Size) {
+  switch (Size) {
+  case 1:
+    return dwarf::DW_FORM_data1;
+  case 2:
+    return dwarf::DW_FORM_data2;
+  case 4:
+    return dwarf::DW_FORM_data4;
+  case 8:
+    return dwarf::DW_FORM_data8;
+  default:
+    llvm_unreachable("fixed-width data size must be 1, 2, 4, or 8 bytes");
+  }
+}
+
+static uint64_t getDataValue(uint64_t Value, unsigned Size) {
+  if (Size == sizeof(Value))
+    return Value;
+  return Value & ((uint64_t(1) << (Size * 8)) - 1);
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bzcheeseman wrote:

why are you setting the high bit here? Non-obvious to me, anyway

https://github.com/llvm/llvm-project/pull/210850