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robehn · Apr 18, 2024 · de72bf9 · de72bf9
1 parent f509161
commit de72bf9
Showing 1 changed file with 2 additions and 0 deletions.
diff --git a/src/hotspot/cpu/riscv/macroAssembler_riscv.hpp b/src/hotspot/cpu/riscv/macroAssembler_riscv.hpp
@@ -678,6 +678,8 @@ class MacroAssembler: public Assembler {
   int pop_v(unsigned int bitset, Register stack);
 #endif // COMPILER2
 
+  // The signed 20-bit upper imm can materialize at most negative 0xF...F80000000, two G.
+  // The following signed 12-bit imm can at max subtract 0x800, two K, from that previously loaded two G.
   bool is_valid_32bit_offset(int64_t x) {
     constexpr int64_t twoG = (2 * G);
     constexpr int64_t twoK = (2 * K);