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| author | Richard Kenner <kenner@vlsi1.ultra.nyu.edu> | 2004-02-12 18:25:09 +0000 |
|---|---|---|
| committer | Richard Kenner <kenner@gcc.gnu.org> | 2004-02-12 13:25:09 -0500 |
| commit | a5e9c8103348cb036a6f29773fd9e08ec925ffcb (patch) | |
| tree | 7b4a430fb294344fe468f64ca7e6d902b0ac2a90 /gcc/function.c | |
| parent | 2e9a1f6b05e79f1b7de15d5ae64f3222d989e7e5 (diff) | |
| download | gcc-a5e9c8103348cb036a6f29773fd9e08ec925ffcb.zip gcc-a5e9c8103348cb036a6f29773fd9e08ec925ffcb.tar.gz gcc-a5e9c8103348cb036a6f29773fd9e08ec925ffcb.tar.bz2 | |
emit-rtl.c (set_mem_attributes_minus_bitpos): Don't kill previous MEM_VOLATILE in REF.
* emit-rtl.c (set_mem_attributes_minus_bitpos): Don't kill
previous MEM_VOLATILE in REF.
* function.c (fixup_var_refs): Save volatile_ok and set to 1.
* expr.c (emit_block_move_via_movstr): Save and restore volatile_ok.
From-SVN: r77718
Diffstat (limited to 'gcc/function.c')
| -rw-r--r-- | gcc/function.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/gcc/function.c b/gcc/function.c index e2024f2..ca26cf8 100644 --- a/gcc/function.c +++ b/gcc/function.c @@ -1503,6 +1503,7 @@ fixup_var_refs (rtx var, enum machine_mode promoted_mode, int unsignedp, rtx first_insn = get_insns (); struct sequence_stack *stack = seq_stack; tree rtl_exps = rtl_expr_chain; + int save_volatile_ok = volatile_ok; /* If there's a hash table, it must record all uses of VAR. */ if (ht) @@ -1514,6 +1515,9 @@ fixup_var_refs (rtx var, enum machine_mode promoted_mode, int unsignedp, return; } + /* Volatile is valid in MEMs because all we're doing in changing the + address inside. */ + volatile_ok = 1; fixup_var_refs_insns (first_insn, var, promoted_mode, unsignedp, stack == 0, may_share); @@ -1541,6 +1545,8 @@ fixup_var_refs (rtx var, enum machine_mode promoted_mode, int unsignedp, end_sequence (); } } + + volatile_ok = save_volatile_ok; } /* REPLACEMENTS is a pointer to a list of the struct fixup_replacement and X is |