diff options
Diffstat (limited to 'gcc/varasm.c')
| -rw-r--r-- | gcc/varasm.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/gcc/varasm.c b/gcc/varasm.c index c8ece891d24..9d245830f44 100644 --- a/gcc/varasm.c +++ b/gcc/varasm.c @@ -3798,6 +3798,13 @@ mark_constants (x) find_pool_constant (x)->mark = 1; return; } + /* Never search inside a CONST_DOUBLE, because CONST_DOUBLE_MEM may be + a MEM, but does not constitute a use of that MEM. This is particularly + important inside a nested function, because CONST_DOUBLE_MEM may be + a reference to a MEM in the parent's constant pool. See the comment + in force_const_mem. */ + else if (GET_CODE (x) == CONST_DOUBLE) + return; /* Insns may appear inside a SEQUENCE. Only check the patterns of insns, not any notes that may be attached. We don't want to mark |