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-rwxr-xr-xtool/instruction.rb4
-rw-r--r--vm_exec.h12
2 files changed, 11 insertions, 5 deletions
diff --git a/tool/instruction.rb b/tool/instruction.rb
index 3354933da9..447fed5948 100755
--- a/tool/instruction.rb
+++ b/tool/instruction.rb
@@ -540,7 +540,7 @@ class RubyVM
@insns.dup.each{|insn|
body = <<-EOS
vm_trace(ec, GET_CFP(), GET_PC());
- goto start_of_#{insn.name};
+ DISPATCH_ORIGINAL_INSN(#{insn.name});
EOS
trace_insn = Instruction.new(name = "trace_#{insn.name}",
@@ -884,7 +884,7 @@ class RubyVM
end
def make_header insn
- label = insn.trace ? '' : "start_of_#{insn.name}:;"
+ label = insn.trace ? '' : "START_OF_ORIGINAL_INSN(#{insn.name});"
commit "INSN_ENTRY(#{insn.name}){#{label}"
make_header_prepare_stack insn
commit "{"
diff --git a/vm_exec.h b/vm_exec.h
index 3bfdd569d1..29120975ce 100644
--- a/vm_exec.h
+++ b/vm_exec.h
@@ -66,6 +66,9 @@ error !
#define NEXT_INSN() return reg_cfp;
+#define START_OF_ORIGINAL_INSN(x) /* ignore */
+#define DISPATCH_ORIGINAL_INSN(x) return LABEL(x)(ec, reg_cfp);
+
/************************************************/
#elif OPT_TOKEN_THREADED_CODE || OPT_DIRECT_THREADED_CODE
/* threaded code with gcc */
@@ -95,10 +98,8 @@ error !
#else
#define DISPATCH_ARCH_DEPEND_WAY(addr) \
/* do nothing */
-
#endif
-
/**********************************/
#if OPT_DIRECT_THREADED_CODE
@@ -134,6 +135,9 @@ error !
#define NEXT_INSN() TC_DISPATCH(__NEXT_INSN__)
+#define START_OF_ORIGINAL_INSN(x) start_of_##x:
+#define DISPATCH_ORIGINAL_INSN(x) goto start_of_##x;
+
/************************************************/
#else /* no threaded code */
/* most common method */
@@ -145,7 +149,6 @@ case BIN(insn):
DEBUG_END_INSN(); \
break;
-
#define INSN_DISPATCH() \
while (1) { \
switch (GET_CURRENT_INSN()) {
@@ -159,6 +162,9 @@ default: \
#define NEXT_INSN() goto first
+#define START_OF_ORIGINAL_INSN(x) start_of_##x:
+#define DISPATCH_ORIGINAL_INSN(x) goto start_of_##x;
+
#endif
#define VM_SP_CNT(ec, sp) ((sp) - (ec)->vm_stack)