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| author | Doug Evans <dje@gnu.org> | 1993-09-24 19:50:44 +0000 |
|---|---|---|
| committer | Doug Evans <dje@gnu.org> | 1993-09-24 19:50:44 +0000 |
| commit | a36d4c6259c2e8b426087892db7c9e644981ffc4 (patch) | |
| tree | e3a2048a330bd8e5def4dd4ec35c986ceb300c13 | |
| parent | 6fa4004a0cb37854350172c0cf72d9b91eb87aae (diff) | |
| download | gcc-a36d4c6259c2e8b426087892db7c9e644981ffc4.zip gcc-a36d4c6259c2e8b426087892db7c9e644981ffc4.tar.gz gcc-a36d4c6259c2e8b426087892db7c9e644981ffc4.tar.bz2 | |
reload.c: (immune_p): Constants never overlap hard frame pointer references.
* reload.c: (immune_p): Constants never overlap hard frame pointer references.
(find_reloads_address): Compute invalid references to the hard
frame pointer in a register; also (reg + const)
and (reg + reg + const).
From-SVN: r5462
| -rw-r--r-- | gcc/reload.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/gcc/reload.c b/gcc/reload.c index 27d017d..7d9d55b 100644 --- a/gcc/reload.c +++ b/gcc/reload.c @@ -2109,10 +2109,12 @@ immune_p (x, y, ydata) /* Constants and stack slots never overlap. */ if (CONSTANT_P (xdata.base) && (ydata.base == frame_pointer_rtx + || ydata.base == hard_frame_pointer_rtx || ydata.base == stack_pointer_rtx)) return 1; if (CONSTANT_P (ydata.base) && (xdata.base == frame_pointer_rtx + || xdata.base == hard_frame_pointer_rtx || xdata.base == stack_pointer_rtx)) return 1; /* If either base is variable, we don't know anything. */ @@ -4083,6 +4085,9 @@ find_reloads_address (mode, memrefloc, ad, loc, opnum, type, ind_levels) (displacement is too large), compute the sum in a register. */ else if (GET_CODE (ad) == PLUS && (XEXP (ad, 0) == frame_pointer_rtx +#if HARD_FRAME_POINTER_REGNUM != FRAME_POINTER_REGNUM + || XEXP (ad, 0) == hard_frame_pointer_rtx +#endif #if FRAME_POINTER_REGNUM != ARG_POINTER_REGNUM || XEXP (ad, 0) == arg_pointer_rtx #endif @@ -4149,6 +4154,9 @@ find_reloads_address (mode, memrefloc, ad, loc, opnum, type, ind_levels) else if (GET_CODE (ad) == PLUS && GET_CODE (XEXP (ad, 1)) == CONST_INT && GET_CODE (XEXP (ad, 0)) == PLUS && (XEXP (XEXP (ad, 0), 0) == frame_pointer_rtx +#if FRAME_POINTER_REGNUM != HARD_FRAME_POINTER_REGNUM + || XEXP (XEXP (ad, 0), 0) == hard_frame_pointer_rtx +#endif #if FRAME_POINTER_REGNUM != ARG_POINTER_REGNUM || XEXP (XEXP (ad, 0), 0) == arg_pointer_rtx #endif @@ -4169,6 +4177,9 @@ find_reloads_address (mode, memrefloc, ad, loc, opnum, type, ind_levels) else if (GET_CODE (ad) == PLUS && GET_CODE (XEXP (ad, 1)) == CONST_INT && GET_CODE (XEXP (ad, 0)) == PLUS && (XEXP (XEXP (ad, 0), 1) == frame_pointer_rtx +#if HARD_FRAME_POINTER_REGNUM != FRAME_POINTER_REGNUM + || XEXP (XEXP (ad, 0), 1) == hard_frame_pointer_rtx +#endif #if FRAME_POINTER_REGNUM != ARG_POINTER_REGNUM || XEXP (XEXP (ad, 0), 1) == arg_pointer_rtx #endif |