From aec1b8dddc68ecb8288ec6132932e4c7b4bca09f Mon Sep 17 00:00:00 2001
From: Ash Wolf <ninji@wuffs.org>
Date: Tue, 10 Jan 2023 11:05:21 +0000
Subject: getting close to done

---
 includes/compiler/IroLoop.h | 30 +++++++++++++++---------------
 1 file changed, 15 insertions(+), 15 deletions(-)

(limited to 'includes/compiler/IroLoop.h')

diff --git a/includes/compiler/IroLoop.h b/includes/compiler/IroLoop.h
index 8357830..0c60589 100644
--- a/includes/compiler/IroLoop.h
+++ b/includes/compiler/IroLoop.h
@@ -5,32 +5,32 @@
 #include "compiler/BitVector.h"
 
 typedef enum IROLoopIndFlags {
-    LoopInd_1 = 1,
-    LoopInd_2 = 2,
+    LoopInd_HasMod = 1,
+    LoopInd_HasDiv = 2,
     LoopInd_4 = 4,
     LoopInd_8 = 8
 } IROLoopIndFlags;
 
 typedef enum IROLoopFlags {
-    LoopFlags_1 = 1,
+    LoopFlags_1 = 1, // LP_INDUCTION_AT_LEFT
     LP_LOOP_HAS_CALLS = 2,
     LP_LOOP_HAS_CNTRLFLOW = 4,
-    LoopFlags_8 = 8,
+    LoopFlags_8 = 8, // LP_HAS_NONASSIGN
     LP_INDUCTION_NOT_FOUND = 0x10,
     LP_IFEXPR_NON_CANONICAL = 0x20,
     LP_HAS_MULTIPLE_INDUCTIONS = 0x40,
     LP_LOOP_HDR_HAS_SIDEEFFECTS = 0x80,
-    LoopFlags_100 = 0x100,
-    LoopFlags_200 = 0x200,
+    LP_LOOP_STEP_ISADD = 0x100,
+    LoopFlags_200 = 0x200, // LP_HEADER_FOLLOWS_UPDATE?
     LP_LOOP_STEP_ISPOS = 0x400,
-    LoopFlags_800 = 0x800,
-    LoopFlags_1000 = 0x1000,
-    LoopFlags_2000 = 0x2000,
+    LoopFlags_800 = 0x800, // LP_IND_USED_IN_LOOP
+    LoopFlags_1000 = 0x1000, // LP_HAS_MULTIPLE_EXITS
+    LoopFlags_2000 = 0x2000, // inverse of LP_LOOP_STEP_ISADD?
     LP_LOOP_STEP_ISNEG = 0x4000,
     LP_LOOP_HAS_ASM = 0x8000,
-    LoopFlags_10000 = 0x10000,
-    LoopFlags_20000 = 0x20000,
-    LoopFlags_40000 = 0x40000
+    LoopFlags_10000 = 0x10000, // LP_WHILE_LOOP
+    LoopFlags_20000 = 0x20000, // maybe LP_RECURSIVE_LOOP?
+    LoopFlags_40000 = 0x40000 // LP_IS_REDUCTION_CAND
 } IROLoopFlags;
 
 #ifdef __MWERKS__
@@ -50,10 +50,10 @@ struct IROLoop {
     SInt32 flags;
     IRONode *fnode;
     int x8;
-    int xC;
-    int x10;
+    IRONode *xC;
+    IRONode *x10;
     IROLinear *nd14; // assignment expression that sets the initial value of induction
-    IROLinear *nd18;
+    IROLinear *nd18; // ifexpr?
     IROLoopInd *induction;
     int index20;
     int index24;
-- 
cgit v1.2.3