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Re: matching constraints for differently sized operands (fwd)
- To: gcc-patches at gcc dot gnu dot org
- Subject: Re: matching constraints for differently sized operands (fwd)
- From: Joern Rennecke <amylaar at redhat dot com>
- Date: Wed, 3 Oct 2001 02:42:49 +0100 (BST)
>From owner-gcc-local@cygnus.com Sun Jan 21 03:31:56 2001
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From: Joern Rennecke <amylaar@cambridge.redhat.com>
Message-Id: <200101210331.f0L3VcP29792@phal.cambridge.redhat.com>
Subject: Re: matching constraints for differently sized operands
To: law@cygnus.com
Date: Sun, 21 Jan 2001 03:31:37 +0000 (GMT)
In-Reply-To: <200101210214.f0L2EqY01537@phal.cambridge.redhat.com> from "Joern Rennecke" at Jan 21, 2001 02:14:52 AM
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P.S.:
emit_input_reload_insns and emit_output_reload_insns in reload1.c
also lack big-endian correction.
Sun Jan 21 03:29:19 2001 J"orn Rennecke <amylaar@redhat.com>
* reload1.c (emit_input_reload_insns, emit_output_reload_insns):
When changing the mode of reloadreg, do big-endian correction.
Index: reload1.c
===================================================================
RCS file: /cvs/cvsfiles/devo/gcc/reload1.c,v
retrieving revision 1.287
diff -p -r1.287 reload1.c
*** reload1.c 2001/01/13 20:18:41 1.287
--- reload1.c 2001/01/21 03:27:08
*************** emit_input_reload_insns (chain, rl, old,
*** 6237,6243 ****
must always be a REG here. */
if (GET_MODE (reloadreg) != mode)
! reloadreg = gen_rtx_REG (mode, REGNO (reloadreg));
while (GET_CODE (oldequiv) == SUBREG && GET_MODE (oldequiv) != mode)
oldequiv = SUBREG_REG (oldequiv);
if (GET_MODE (oldequiv) != VOIDmode
--- 6237,6251 ----
must always be a REG here. */
if (GET_MODE (reloadreg) != mode)
! {
! int regno = REGNO (reloadreg);
!
! if (WORDS_BIG_ENDIAN)
! regno += (HARD_REGNO_NREGS (regno, GET_MODE (reloadreg))
! - HARD_REGNO_NREGS (regno, mode));
! reloadreg = gen_rtx_REG (mode, regno);
! }
!
while (GET_CODE (oldequiv) == SUBREG && GET_MODE (oldequiv) != mode)
oldequiv = SUBREG_REG (oldequiv);
if (GET_MODE (oldequiv) != VOIDmode
*************** emit_output_reload_insns (chain, rl, j)
*** 6600,6606 ****
}
if (GET_MODE (reloadreg) != mode)
! reloadreg = gen_rtx_REG (mode, REGNO (reloadreg));
#ifdef SECONDARY_OUTPUT_RELOAD_CLASS
--- 6608,6621 ----
}
if (GET_MODE (reloadreg) != mode)
! {
! int regno = REGNO (reloadreg);
!
! if (WORDS_BIG_ENDIAN)
! regno += (HARD_REGNO_NREGS (regno, GET_MODE (reloadreg))
! - HARD_REGNO_NREGS (regno, mode));
! reloadreg = gen_rtx_REG (mode, regno);
! }
#ifdef SECONDARY_OUTPUT_RELOAD_CLASS