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expr.c (emit_move_insn_1): Revert 17 Dec change.

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* expr.c (emit_move_insn_1): Revert 17 Dec change.  Don't emit
        clobber during or after reload.

From-SVN: r24772
This commit is contained in:
Richard Henderson 1999-01-19 13:11:00 -08:00 committed by Richard Henderson
parent 959f341d33
commit c14c652997
2 changed files with 17 additions and 20 deletions
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5
gcc/ChangeLog
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@ -1,3 +1,8 @@
Tue Jan 19 21:08:20 1999 Richard Henderson <rth@cygnus.com>
* expr.c (emit_move_insn_1): Revert 17 Dec change. Don't emit
clobber during or after reload.
Tue Jan 19 16:56:03 1999 Richard Henderson <rth@cygnus.com> Tue Jan 19 16:56:03 1999 Richard Henderson <rth@cygnus.com>
* genoutput.c (name_for_index): New function. * genoutput.c (name_for_index): New function.

32
gcc/expr.c
View File

@ -2578,17 +2578,13 @@ emit_move_insn_1 (x, y)
} }
else else
{ {
/* Show the output dies here. This is only necessary for pseudos. */ /* Show the output dies here. This is necessary for pseudos;
if (x != y) hard regs shouldn't appear here except as return values.
We never want to emit such a clobber after reload. */
if (x != y
&& ! (reload_in_progress || reload_completed))
{ {
rtx reg = x; emit_insn (gen_rtx_CLOBBER (VOIDmode, x));
while (GET_CODE (reg) == SUBREG)
reg = SUBREG_REG (reg);
if (GET_CODE (reg) == REG
&& REGNO (reg) >= FIRST_PSEUDO_REGISTER)
emit_insn (gen_rtx_CLOBBER (VOIDmode, x));
} }
emit_insn (GEN_FCN (mov_optab->handlers[(int) submode].insn_code) emit_insn (GEN_FCN (mov_optab->handlers[(int) submode].insn_code)
@ -2618,17 +2614,13 @@ emit_move_insn_1 (x, y)
} }
#endif #endif
/* Show the output dies here. This is only necessary for pseudos. */ /* Show the output dies here. This is necessary for pseudos;
if (x != y) hard regs shouldn't appear here except as return values.
We never want to emit such a clobber after reload. */
if (x != y
&& ! (reload_in_progress || reload_completed))
{ {
rtx reg = x; emit_insn (gen_rtx_CLOBBER (VOIDmode, x));
while (GET_CODE (reg) == SUBREG)
reg = SUBREG_REG (reg);
if (GET_CODE (reg) == REG
&& REGNO (reg) >= FIRST_PSEUDO_REGISTER)
emit_insn (gen_rtx_CLOBBER (VOIDmode, x));
} }
for (i = 0; for (i = 0;