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author | wilson <wilson@138bc75d-0d04-0410-961f-82ee72b054a4> | 1994-03-17 23:36:20 +0000 |
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committer | wilson <wilson@138bc75d-0d04-0410-961f-82ee72b054a4> | 1994-03-17 23:36:20 +0000 |
commit | d95fedab24f490228d7090d9f2c42d91454bb063 (patch) | |
tree | 42d022d8fb0ca4dbc448ad3d209b00c620a389a3 /gcc/calls.c | |
parent | d3dcf1dc0d9f57a839c4ab8bfbcb030512ea34f3 (diff) | |
download | ppe42-gcc-d95fedab24f490228d7090d9f2c42d91454bb063.tar.gz ppe42-gcc-d95fedab24f490228d7090d9f2c42d91454bb063.zip |
(expand_call): Undo Feb 27 change. Set nregs to -1 for
normal case.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@6805 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'gcc/calls.c')
-rw-r--r-- | gcc/calls.c | 29 |
1 files changed, 12 insertions, 17 deletions
diff --git a/gcc/calls.c b/gcc/calls.c index d9cc9f600a3..c7a85bed1f8 100644 --- a/gcc/calls.c +++ b/gcc/calls.c @@ -1782,19 +1782,21 @@ expand_call (exp, target, ignore) else reg = list, list = 0; - /* Set to non-zero if must move a word at a time, even if just one - word (e.g, partial == 1 && mode == DFmode). Set to zero if - we just use a normal move insn. */ + /* Set to non-negative if must move a word at a time, even if just + one word (e.g, partial == 1 && mode == DFmode). Set to -1 if + we just use a normal move insn. This value can be zero if the + argument is a zero size structure with no fields. */ nregs = (partial ? partial : (TYPE_MODE (TREE_TYPE (args[i].tree_value)) == BLKmode - ? -1 - : 0)); + ? ((int_size_in_bytes (TREE_TYPE (args[i].tree_value)) + + (UNITS_PER_WORD - 1)) / UNITS_PER_WORD) + : -1)); /* If simple case, just do move. If normal partial, store_one_arg has already loaded the register for us. In all other cases, load the register(s) from memory. */ - if (nregs == 0) + if (nregs == -1) emit_move_insn (reg, args[i].value); #ifdef STRICT_ALIGNMENT @@ -1808,19 +1810,12 @@ expand_call (exp, target, ignore) #endif else if (args[i].partial == 0 || args[i].pass_on_stack) - { - /* This value might be zero, if the argument is a zero size - structure with no fields, so we can't use it to set nregs - above. */ - nregs = ((int_size_in_bytes (TREE_TYPE (args[i].tree_value)) - + (UNITS_PER_WORD - 1)) / UNITS_PER_WORD); - move_block_to_reg (REGNO (reg), - validize_mem (args[i].value), nregs, - args[i].mode); - } + move_block_to_reg (REGNO (reg), + validize_mem (args[i].value), nregs, + args[i].mode); push_to_sequence (use_insns); - if (nregs == 0) + if (nregs == -1) emit_insn (gen_rtx (USE, VOIDmode, reg)); else use_regs (REGNO (reg), nregs); |