profiling timing optimization

minor update minor update minor update
2023-12-13 18:04:12 -08:00
parent f5f9e3dfdb
commit c6845a4c8d
11 changed files with 64 additions and 56 deletions
--- a/hw/rtl/core/VX_issue.sv
+++ b/hw/rtl/core/VX_issue.sv
@@ -156,13 +156,14 @@ module VX_issue #(

 `ifdef PERF_ENABLE
    reg [`PERF_CTR_BITS-1:0] perf_ibf_stalls;
+    
+    wire decode_stall = decode_if.valid && ~decode_if.ready;
+
    always @(posedge clk) begin
        if (reset) begin
            perf_ibf_stalls <= '0;
        end else begin
-            if (decode_if.valid && ~decode_if.ready) begin
-                perf_ibf_stalls <= perf_ibf_stalls + `PERF_CTR_BITS'(1);
-            end
+            perf_ibf_stalls <= perf_ibf_stalls + `PERF_CTR_BITS'(decode_stall);
        end
    end