feat(arm64): whole-vector moves, bookkeeping ops and truncating-move lowering

Assisted-by: GLM 5.3 Flash
2026-09-20 21:17:20 +02:00
parent 81e2673923
commit b0f9071bf5
6 changed files with 318 additions and 30 deletions
@@ -79,6 +79,11 @@ func arm64RegNum(name string) int {
 		return 17
 	case "R18":
 		return 18
+	case "R18_PLATFORM":
+		// The toolchain's Windows spelling: R18 is renamed R18_PLATFORM in
+		// cmd/asm/internal/arch so assembly cannot use it by accident, and
+		// sys_windows_arm64.s references it only through this name.
+		return 18
 	case "R19":
 		return 19
 	case "R20":