[Emacs-diffs] nick.lloyd-bytecode-jit 1b8bb2d 8/9: ; Fix a performance regression in bytecode JIT compiler

[Nickolas Lloyd]

branch: nick.lloyd-bytecode-jit
commit 1b8bb2df51067b2123a92c63bdbed03389c036b8
Author: Nickolas Lloyd <address@hidden>
Commit: Nickolas Lloyd <address@hidden>

    ; Fix a performance regression in bytecode JIT compiler
    
    ; * src/bytecode-jit.c: Make `functions' array static const to allow the
    compiler to elide the array accesses.  This brings `jit_byte_code__'
    performance back in line with the more explicit, repetitive
    pre-639dfad3ae2a478652a399986b03e5eec219eab1 version.
---
 src/bytecode-jit.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/bytecode-jit.c b/src/bytecode-jit.c
index 859df8b..6ab7349 100644
--- a/src/bytecode-jit.c
+++ b/src/bytecode-jit.c
@@ -781,7 +781,7 @@ struct {
   void * const ptr;
   const char * const name;
   int n;
-} functions[256] = {
+} static const functions[256] = {
 #undef DEFINE_FIXED
 #define DEFINE_FIXED(bname, value, fname, num) \
   [value] = { .ptr = (void *)(&fname), .name = #fname, .n = num },