From 866aa3b64b91e88a50ebe02bf75c39d368bde1cd Mon Sep 17 00:00:00 2001 From: Doug Evans Date: Mon, 21 Jul 1997 18:07:27 +0000 Subject: reload1.c (reload_cse_mem_conflict_p): Restore handling of (mem:BLK const0_rtx) meaning all memory is clobbered. * reload1.c (reload_cse_mem_conflict_p): Restore handling of (mem:BLK const0_rtx) meaning all memory is clobbered. From-SVN: r14512 --- gcc/reload1.c | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-) (limited to 'gcc') diff --git a/gcc/reload1.c b/gcc/reload1.c index 564a579..f777c5b 100644 --- a/gcc/reload1.c +++ b/gcc/reload1.c @@ -7668,8 +7668,8 @@ reload_cse_invalidate_regno (regno, mode, clobber) } } -/* The memory at address MEM_BASE is being changed. MEM_MODE is the mode of - the memory reference. Return whether this change will invalidate VAL. */ +/* The memory at address MEM_BASE is being changed. + Return whether this change will invalidate VAL. */ static int reload_cse_mem_conflict_p (mem_base, val) @@ -7696,6 +7696,9 @@ reload_cse_mem_conflict_p (mem_base, val) return 0; case MEM: + if (GET_MODE (mem_base) == BLKmode + || GET_MODE (val) == BLKmode) + return 1; return anti_dependence (val, mem_base); default: -- cgit v1.1