8279487: riscv: Fix bad AD file when UseRVB is disabled

feilongjiang · RealFYang · commit 65cf0efe4317 · 2022-01-05T06:35:47.000Z
Reviewed-by: fyang
diff --git a/src/hotspot/cpu/riscv/riscv.ad b/src/hotspot/cpu/riscv/riscv.ad
@@ -1772,6 +1772,9 @@ const bool Matcher::match_rule_supported(int opcode) {
       return UseRVV;
     case Op_EncodeISOArray:
       return UseRVV && SpecialEncodeISOArray;
+    case Op_RotateRight:
+    case Op_RotateLeft:
+      return UseRVB;
   }
 
   return true; // Per default match rules are supported.

Original file line number	Diff line number	Diff line change
`@@ -1772,6 +1772,9 @@ const bool Matcher::match_rule_supported(int opcode) {`
`1772`	`1772`	`return UseRVV;`
`1773`	`1773`	`case Op_EncodeISOArray:`
`1774`	`1774`	`return UseRVV && SpecialEncodeISOArray;`
	`1775`	`+ case Op_RotateRight:`
	`1776`	`+ case Op_RotateLeft:`
	`1777`	`+ return UseRVB;`
`1775`	`1778`	`}`
`1776`	`1779`
`1777`	`1780`	`return true; // Per default match rules are supported.`