compile.c (COMPILE_ERROR): reduce GET_THREAD() calls

Shorten a long line and reduce global variable access, giving
a minor code size reduction (at least on 32-bit x86):

   text	   data	    bss	    dec	    hex	filename
  96807	    772	     48	  97627	  17d5b	compile.orig
  96775	    772	     48	  97595	  17d3b	compile.o

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@51184 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 5 insertions, 4 deletions

diff --git a/compile.c b/compile.c
index 6757ea3595..3249e9f2af 100644
--- a/compile.c
+++ b/compile.c
@@ -287,12 +287,13 @@ r_value(VALUE value)
 /* error */
 #define COMPILE_ERROR(strs)                        \
 {                                                  \
-  VALUE tmp = GET_THREAD()->errinfo;               \
+  rb_thread_t *th = GET_THREAD();                  \
+  VALUE tmp = th->errinfo;                         \
   if (compile_debug) rb_compile_bug strs;          \
-  GET_THREAD()->errinfo = iseq->compile_data->err_info;  \
+  th->errinfo = iseq->compile_data->err_info;      \
   rb_compile_error strs;                           \
-  RB_OBJ_WRITE(iseq->self, &iseq->compile_data->err_info, GET_THREAD()->errinfo); \
-  GET_THREAD()->errinfo = tmp;                     \
+  RB_OBJ_WRITE(iseq->self, &iseq->compile_data->err_info, th->errinfo); \
+  th->errinfo = tmp;                               \
   ret = 0;                                         \
   break;                                           \
 }