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-rw-r--r--kernel/byterun/coq_interp.c2
-rw-r--r--kernel/byterun/coq_memory.c3
2 files changed, 3 insertions, 2 deletions
diff --git a/kernel/byterun/coq_interp.c b/kernel/byterun/coq_interp.c
index 1b6da7dd6f..3bee36b667 100644
--- a/kernel/byterun/coq_interp.c
+++ b/kernel/byterun/coq_interp.c
@@ -113,7 +113,7 @@ if (sp - num_args < coq_stack_threshold) { \
#define Setup_for_gc { sp -= 2; sp[0] = accu; sp[1] = coq_env; coq_sp = sp; }
#define Restore_after_gc { accu = sp[0]; coq_env = sp[1]; sp += 2; }
#define Setup_for_caml_call { *--sp = coq_env; coq_sp = sp; }
-#define Restore_after_caml_call { sp = coq_sp; coq_env = *sp++; }
+#define Restore_after_caml_call coq_env = *sp++;
/* Register optimization.
Some compilers underestimate the use of the local variables representing
diff --git a/kernel/byterun/coq_memory.c b/kernel/byterun/coq_memory.c
index ae5251c252..fe076f8f04 100644
--- a/kernel/byterun/coq_memory.c
+++ b/kernel/byterun/coq_memory.c
@@ -65,9 +65,10 @@ static void coq_scan_roots(scanning_action action)
register value * i;
/* Scan the stack */
for (i = coq_sp; i < coq_stack_high; i++) {
+ if (!Is_block(*i)) continue;
#ifdef NO_NAKED_POINTERS
/* The VM stack may contain C-allocated bytecode */
- if (Is_block(*i) && !Is_in_heap_or_young(*i)) continue;
+ if (!Is_in_heap_or_young(*i)) continue;
#endif
(*action) (*i, i);
};