diff options
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/ChangeLog | 4 | ||||
| -rw-r--r-- | gcc/varasm.c | 7 |
2 files changed, 11 insertions, 0 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index d3078a52ec6..2e06e8b76fe 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,7 @@ +Fri Aug 29 11:42:04 1997 Jim Wilson <wilson@cygnus.com> + + * varasm.c (mark_constants): Don't look inside CONST_DOUBLEs. + Fri Aug 29 09:33:20 1997 Philipp Thomas (kthomas@lxi165.gwdg.de) * dwarfout2.c (build_abbrev_table): Use xrealloc, not xmalloc 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 |