commit 5cd647935d0834b3064aa36384b8f6730fadadd6
author Bram Moolenaar <Bram@vim.org> Sat Dec 25 18:23:24 2021 +0000
committer Bram Moolenaar <Bram@vim.org> Sat Dec 25 18:23:24 2021 +0000
tree d0b40261ac7160d723f5bca46cf57d43641e9aed
parent 35cfd793aad7c4bfba4a9bedf5c435c44e4293d0

patch 8.2.3893: Vim9: many local variables are initialized with an instruction

Problem:    Vim9: many local variables are initialized with an instruction.
Solution:   Initialize local variables to zero to avoid the instructions.

src/testdir/test_vim9_disassemble.vim

diff --git a/src/testdir/test_vim9_disassemble.vim b/src/testdir/test_vim9_disassemble.vim
index b1ba675..3b8e12d 100644
--- a/src/testdir/test_vim9_disassemble.vim
+++ b/src/testdir/test_vim9_disassemble.vim
@@ -1773,6 +1773,7 @@
 def ReturnBool(): bool
   var one = 1
   var zero = 0
+  var none: number
   var name: bool = one && zero || one
   return name
 enddef
@@ -1783,19 +1784,19 @@
         'var one = 1\_s*' ..
         '0 STORE 1 in $0\_s*' ..
         'var zero = 0\_s*' ..
-        '1 STORE 0 in $1\_s*' ..
+        'var none: number\_s*' ..
         'var name: bool = one && zero || one\_s*' ..
-        '2 LOAD $0\_s*' ..
-        '3 COND2BOOL\_s*' ..
-        '4 JUMP_IF_COND_FALSE -> 7\_s*' ..
-        '5 LOAD $1\_s*' ..
-        '6 COND2BOOL\_s*' ..
-        '7 JUMP_IF_COND_TRUE -> 10\_s*' ..
-        '8 LOAD $0\_s*' ..
-        '9 COND2BOOL\_s*' ..
-        '10 STORE $2\_s*' ..
+        '1 LOAD $0\_s*' ..
+        '2 COND2BOOL\_s*' ..
+        '3 JUMP_IF_COND_FALSE -> 6\_s*' ..
+        '4 LOAD $1\_s*' ..
+        '5 COND2BOOL\_s*' ..
+        '6 JUMP_IF_COND_TRUE -> 9\_s*' ..
+        '7 LOAD $0\_s*' ..
+        '8 COND2BOOL\_s*' ..
+        '9 STORE $3\_s*' ..
         'return name\_s*' ..
-        '\d\+ LOAD $2\_s*' ..   
+        '\d\+ LOAD $3\_s*' ..   
         '\d\+ RETURN',
         instr)
   assert_equal(true, InvertBool())