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Makefile.in (flow.o): Depend on $(EXPR_H).

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* Makefile.in (flow.o): Depend on $(EXPR_H).
        * flow.c (mark_regs_live_at_end): Use hard_function_value, i.e.
        duplicate the structure of diddle_return_value for keeping regs live.

From-SVN: r31620
This commit is contained in:
Richard Henderson 2000-01-25 16:54:44 -08:00 committed by Richard Henderson
parent 1a588ad752
commit 7554ad67e5
3 changed files with 26 additions and 24 deletions
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6
gcc/ChangeLog
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@ -1,3 +1,9 @@
2000-01-25 Richard Henderson <rth@cygnus.com>
* Makefile.in (flow.o): Depend on $(EXPR_H).
* flow.c (mark_regs_live_at_end): Use hard_function_value, i.e.
duplicate the structure of diddle_return_value for keeping regs live.
2000-01-26 Michael Hayes <m.hayes@elec.canterbury.ac.nz>
* loop.c (current_loop_info): Delete.

2
gcc/Makefile.in
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@ -1573,7 +1573,7 @@ unroll.o : unroll.c $(CONFIG_H) system.h $(RTL_H) insn-config.h function.h \
varray.h
flow.o : flow.c $(CONFIG_H) system.h $(RTL_H) $(TREE_H) flags.h insn-config.h \
$(BASIC_BLOCK_H) $(REGS_H) hard-reg-set.h output.h toplev.h $(RECOG_H) \
insn-flags.h function.h except.h
insn-flags.h function.h except.h $(EXPR_H)
combine.o : combine.c $(CONFIG_H) system.h $(RTL_H) flags.h function.h \
insn-config.h insn-flags.h insn-codes.h insn-attr.h $(REGS_H) $(EXPR_H) \
$(BASIC_BLOCK_H) $(RECOG_H) real.h hard-reg-set.h toplev.h

42
gcc/flow.c
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@ -133,6 +133,7 @@ Boston, MA 02111-1307, USA. */
#include "except.h"
#include "toplev.h"
#include "recog.h"
#include "expr.h"
#include "insn-flags.h"
#include "obstack.h"
@ -2782,7 +2783,8 @@ static void
mark_regs_live_at_end (set)
regset set;
{
tree type;
tree return_decl, return_type;
rtx return_reg;
int i;
/* If exiting needs the right stack value, consider the stack pointer
@ -2841,40 +2843,34 @@ mark_regs_live_at_end (set)
/* Mark function return value. */
type = TREE_TYPE (DECL_RESULT (current_function_decl));
if (type != void_type_node)
return_decl = DECL_RESULT (current_function_decl);
return_type = TREE_TYPE (return_decl);
return_reg = DECL_RTL (return_decl);
if (return_reg)
{
rtx outgoing;
if (current_function_returns_struct
|| current_function_returns_pcc_struct)
type = build_pointer_type (type);
#ifdef FUNCTION_OUTGOING_VALUE
outgoing = FUNCTION_OUTGOING_VALUE (type, current_function_decl);
#else
outgoing = FUNCTION_VALUE (type, current_function_decl);
#endif
if (GET_CODE (outgoing) == REG)
mark_reg (set, outgoing);
else if (GET_CODE (outgoing) == PARALLEL)
if (GET_CODE (return_reg) == REG
&& REGNO (return_reg) < FIRST_PSEUDO_REGISTER)
{
int len = XVECLEN (outgoing, 0);
/* Use hard_function_value to avoid examining a BLKmode register. */
return_reg
= hard_function_value (return_type, current_function_decl, 1);
mark_reg (set, return_reg);
}
else if (GET_CODE (return_reg) == PARALLEL)
{
int len = XVECLEN (return_reg, 0);
/* Check for a NULL entry, used to indicate that the parameter
goes on the stack and in registers. */
i = (XEXP (XVECEXP (outgoing, 0, 0), 0) ? 0 : 1);
i = (XEXP (XVECEXP (return_reg, 0, 0), 0) ? 0 : 1);
for ( ; i < len; ++i)
{
rtx r = XVECEXP (outgoing, 0, i);
rtx r = XVECEXP (return_reg, 0, i);
if (GET_CODE (r) == REG)
mark_reg (set, r);
}
}
else
abort ();
}
}