From: Luke Kenneth Casson Leighton <lkcl@lkcl.net>
Date: Sun, 30 Sep 2018 09:37:05 +0000 (+0100)
Subject: list of instructions to avoid parallelising
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=335ce9f3034cd844d428ce231cabd3c9d29b5edc;p=riscv-isa-sim.git

list of instructions to avoid parallelising
---

diff --git a/id_regs.py b/id_regs.py
index e897d63..b705ec7 100644
--- a/id_regs.py
+++ b/id_regs.py
@@ -55,9 +55,11 @@ allints = intpatterns + cintpatterns[2:]
 skip = '#define USING_NOREGS\n' \
        '#define REGS_PATTERN 0x0\n'
 def find_registers(fname):
-    # HACK! macro-skipping csr* instructions too painful
-    if 'csr' in fname or 'lui' in fname:
-        return skip
+    # HACK! macro-skipping of instructions too painful
+    for notparallel in ['csr', 'lui', 'c_j', 'wfi', 'auipc',
+                        'dret', 'uret', 'mret', 'sret']:
+        if notparallel in fname:
+            return skip
     res = []
     isintfloat = 0x0 + floatmask << len(allints)
     with open(fname) as f: