vcompress.vm: Check if there is any vector extension before using vec…

…tor CSRs
riscv-software-src · Aug 1, 2024 · a17842c · a17842c
1 parent 9572283
commit a17842c
Showing 1 changed file with 5 additions and 4 deletions.
diff --git a/riscv/insns/vcompress_vm.h b/riscv/insns/vcompress_vm.h
@@ -1,13 +1,14 @@
 // vcompress vd, vs2, vs1
-require(P.VU.vstart->read() == 0);
-require_align(insn.rd(), P.VU.vflmul);
-require_align(insn.rs2(), P.VU.vflmul);
 require(insn.rd() != insn.rs2());
-require_noover(insn.rd(), P.VU.vflmul, insn.rs1(), 1);
 
 reg_t pos = 0;
 
 VI_GENERAL_LOOP_BASE
+  require(P.VU.vstart->read() == 0);
+  require_align(insn.rd(), P.VU.vflmul);
+  require_align(insn.rs2(), P.VU.vflmul);
+  require_noover(insn.rd(), P.VU.vflmul, insn.rs1(), 1);
+
   const int midx = i / 64;
   const int mpos = i % 64;