[PATCH v2 1/3] Hexagon (target/hexagon) Pass P0 explicitly to helpers that need it

[Taylor Simpson]

Rather than reading P0 from the env, pass it explicitly

Signed-off-by: Taylor Simpson <ltaylorsimpson@gmail.com>
---
 target/hexagon/macros.h      |  2 +-
 target/hexagon/hex_common.py | 10 ++++++++++
 2 files changed, 11 insertions(+), 1 deletion(-)

diff --git a/target/hexagon/macros.h b/target/hexagon/macros.h
index 1376d6ccc1..9c700ce8ef 100644
--- a/target/hexagon/macros.h
+++ b/target/hexagon/macros.h
@@ -358,7 +358,7 @@ static inline TCGv gen_read_ireg(TCGv result, TCGv val, int 
shift)
 #endif
 #define fREAD_PC() (PC)
 
-#define fREAD_P0() (env->pred[0])
+#define fREAD_P0() (P0)
 
 #define fCHECK_PCALIGN(A)
 
diff --git a/target/hexagon/hex_common.py b/target/hexagon/hex_common.py
index 195620c7ec..2dbd0ea737 100755
--- a/target/hexagon/hex_common.py
+++ b/target/hexagon/hex_common.py
@@ -197,6 +197,10 @@ def get_tagimms():
     return dict(zip(tags, list(map(compute_tag_immediates, tags))))
 
 
+def need_p0(tag):
+    return "A_IMPLICIT_READS_P0" in attribdict[tag]
+
+
 def need_slot(tag):
     if (
         "A_CVI_SCATTER" not in attribdict[tag]
@@ -1118,6 +1122,12 @@ def helper_args(tag, regs, imms):
             "tcg_constant_tl(ctx->next_PC)",
             "target_ulong next_PC"
         ))
+    if need_p0(tag):
+        args.append(HelperArg(
+            "i32",
+            "hex_pred[0]",
+            "uint32_t P0"
+        ))
     if need_slot(tag):
         args.append(HelperArg(
             "i32",
-- 
2.34.1